2021 Basic Qualification pool
952 / 972 questions need explanations
All explanations are written and maintained by ordinary users like you! Please help us finish the explanations in this pool.
Which of the following is the most powerful equipment the holder of a Basic with Honours certificate can legally operate at full power?
-
100 watts carrier power HF transmitter (18% chose this)
-
200 watts carrier power HF transceiver (34% chose this)
-
600 watts PEP HF linear amplifier (25% chose this)
-
160 watts carrier power VHF amplifier (23% chose this)
Where a municipality has developed a public consultation process which of the following options best describes all circumstances when public consultation may not be required?
-
Exclusions listed in both CPC-2-0-03 and the Local land use authority process (19% chose this)
-
Exclusions listed in either CPC-2-0-03 or the Local land use authority process (27% chose this)
-
Exclusions listed in the Innovation, Science and Economic Development Canada Client Procedures Circular on Radiocommunications and Broadcasting Antenna Systems CPC-2-0-03 (38% chose this)
-
Exclusions defined in the Local land use authority process (16% chose this)
What property allows an RF bypass capacitor to have little effect on an audio circuit?
-
High reactance at high frequencies (14% chose this)
-
Low reactance at low frequencies (29% chose this)
-
High reactance at low frequencies (25% chose this)
-
Low reactance at high frequencies (32% chose this)
Which of the following statements is not correct?
-
Permissible exposure levels of RF fields increases as frequency is increased from 300 MHz to 1.5 GHz (30% chose this)
-
Permissible exposure levels of RF fields increases as frequency is decreased from 10 MHz to 1 MHz (22% chose this)
-
Permissible exposure levels of RF fields decreases as frequency is decreased below 10 MHz (30% chose this)
-
Maximum exposure levels of RF fields to the general population, in the frequency range 10 to 300 MHz, is 28 V/m RMS (E-field) (18% chose this)
The maximum bandwidth of an amateur station's transmission allowed in the band 28 to 29.7 MHz is:
-
20 kHz (29% chose this)
-
6 kHz (39% chose this)
-
30 kHz (20% chose this)
-
15 kHz (12% chose this)
What is the meaning of the procedural signal "K"?
-
Any station please reply (31% chose this)
-
End of message (28% chose this)
-
Called station only transmit (8% chose this)
-
All received correctly (33% chose this)
An amateur transmitter is being heard across the entire dial of a broadcast receiver. The receiver is most probably suffering from:
-
splatter from the transmitter (33% chose this)
-
audio rectification in the receiver (33% chose this)
-
harmonics interference from the transmitter (26% chose this)
-
poor image rejection (8% chose this)
The maximum bandwidth of an amateur station's transmission allowed in the band 50 to 54 MHz is:
-
6 kHz (33% chose this)
-
15 kHz (17% chose this)
-
30 kHz (33% chose this)
-
20 kHz (17% chose this)
That portion of the radiation kept close to the Earth's surface due to bending in the atmosphere is called the:
-
tropospheric wave (30% chose this)
-
inverted wave (2% chose this)
-
ground wave (47% chose this)
-
ionospheric wave (21% chose this)
In a frequency modulation receiver, the__________ is in between the intermediate frequency amplifier and the frequency discriminator.
-
limiter (32% chose this)
-
filter (35% chose this)
-
local oscillator (23% chose this)
-
radio frequency amplifier (10% chose this)
What can be done to keep a CW transmitter from chirping?
-
Add a low pass filter (11% chose this)
-
Keep the power supply voltages very steady under transmit load (31% chose this)
-
Add a key-click filter (38% chose this)
-
Keep the power supply current very steady under transmit load (20% chose this)
In a single sideband and CW receiver, the output of the ___________ is connected to the product detector.
-
radio frequency amplifier (21% chose this)
-
audio frequency amplifier (13% chose this)
-
beat frequency oscillator (35% chose this)
-
mixer (31% chose this)
In a single sideband transmitter, the output of the ________ is connected to the balanced modulator.
-
variable frequency oscillator (21% chose this)
-
linear amplifier (14% chose this)
-
mixer (33% chose this)
-
radio frequency oscillator (32% chose this)
What is the main reason why so many VHF base and mobile antennas are 5/8 of a wavelength?
-
The angle of radiation is high giving excellent local coverage (23% chose this)
-
It is easy to match the antenna to the transmitter (29% chose this)
-
It's a convenient length on VHF (17% chose this)
-
The angle of radiation is low (31% chose this)
What property allows an RF choke coil to have little effect on signals meant to flow through the coil?
-
Low reactance at high frequencies (35% chose this)
-
High reactance at high frequencies (21% chose this)
-
Low reactance at low frequencies (29% chose this)
-
High reactance at low frequencies (15% chose this)
According to EMCAB-2 which of the following types of equipment is not included in the list of field strength criteria for resolution of immunity complaints?
-
Associated equipment (18% chose this)
-
Radio-sensitive equipment (24% chose this)
-
Broadcast transmitters (36% chose this)
-
Broadcast receivers (22% chose this)
Your SSB HF transmissions are heard muffled on a sound system in the living room regardless of its volume setting. What causes this?
-
Harmonics generated at the transmitter (30% chose this)
-
Improper filtering in the transmitter (21% chose this)
-
Lack of receiver sensitivity and selectivity (12% chose this)
-
Audio rectification of strong signals (38% chose this)
In a Morse code transmission, broad bandwidth RF interference (key-clicks) heard at a distance is produced by:
-
poor shaping of the waveform (34% chose this)
-
shift in frequency when keying the transmitter (34% chose this)
-
sparking at the key contacts (30% chose this)
-
sudden movement in the receiver loudspeaker (1% chose this)
Reflection of a SSB transmission from the ionosphere causes:
-
a high-pitch squeal at the receiver (5% chose this)
-
little or no phase-shift distortion (35% chose this)
-
phase-shift distortion (56% chose this)
-
signal cancellation at the receiver (3% chose this)
In a vacuum tube, the electrode that is operated with the highest positive potential is the _________.
-
filament (heater) (13% chose this)
-
cathode (44% chose this)
-
grid (9% chose this)
-
plate (34% chose this)
Which of the following statements is not correct? A Canadian radio amateur may, on amateur frequencies,:
-
communicate with a similar station of a country which has not notified ITU that it objects to such communications (30% chose this)
-
pass third-party traffic with all duly licensed amateur stations in any country which is a member of the ITU (39% chose this)
-
pass messages originating from or destined to the United States Military Auxiliary Radio System (MARS) (22% chose this)
-
pass messages originating from or destined to the Canadian Forces Affiliate Radio Service (CFARS) (9% chose this)
In a single sideband transmitter, the output of the ____________ is connected to the filter.
-
balanced modulator (34% chose this)
-
microphone (9% chose this)
-
mixer (36% chose this)
-
radio frequency oscillator (21% chose this)
The permissible exposure levels of RF fields:
-
decreases, as frequency is decreased below 10 MHz (19% chose this)
-
increases, as frequency is increased from 10 MHz to 300 MHz (17% chose this)
-
decreases, as frequency is increased above 300 MHz (25% chose this)
-
increases, as frequency is increased from 300 MHz to 1.5 GHz (40% chose this)
Which of these statements about Safety Code 6 is false?
-
Safety Code 6 sets limits for allowable rates at which RF energy is absorbed in the body (Specific Absorption Rate) (20% chose this)
-
Safety Code 6 sets limits in terms of power levels fed into antennas (42% chose this)
-
Safety Code 6 sets limits for contact currents that could be drawn from ungrounded or poorly grounded objects (30% chose this)
-
Safety Code 6 sets limits for induced currents, electrical field strength and magnetic field strength from electromagnetic radiation (8% chose this)
In a regulated power supply, the _______________ is connected to the regulator.
-
transformer (22% chose this)
-
output (35% chose this)
-
rectifier (30% chose this)
-
input (13% chose this)
In a vacuum tube, the element that is furthest away from the plate is the __________.
-
filament (heater) (38% chose this)
-
grid (14% chose this)
-
emitter (15% chose this)
-
cathode (33% chose this)
When selecting a CW transmitting frequency, what minimum frequency separation from a contact in progress should you allow to minimize interference?
-
5 to 50 Hz (9% chose this)
-
1 to 3 kHz (19% chose this)
-
3 to 6 kHz (28% chose this)
-
150 to 500 Hz (44% chose this)
Your mobile HF transceiver draws 22 amperes on transmit. The manufacturer suggests limiting voltage drop to 0.5 volt and the vehicle battery is 3 metres (10 feet) away. Given the losses below at that current, which minimum wire gauge must you use?
-
Number 12, 0.11 V per metre (0.03 V per foot) (35% chose this)
-
Number 8, 0.05 V per metre (0.01 V per foot) (16% chose this)
-
Number 10, 0.07 V per metre (0.02 V per foot) (36% chose this)
-
Number 14, 0.19 V per metre (0.06 V per foot) (13% chose this)
Where in the ionosphere does auroral activity occur?
-
At E-region height (40% chose this)
-
At F-region height (39% chose this)
-
In the equatorial band (2% chose this)
-
At D-region height (19% chose this)
By how many times must the power output of a transmitter be increased to raise the S-meter reading on a nearby receiver from S8 to S9?
-
Approximately 4 times (42% chose this)
-
Approximately 5 times (6% chose this)
-
Approximately 3 times (18% chose this)
-
Approximately 2 times (33% chose this)
Skip distance is the:
-
the maximum distance a signal will travel by both a ground wave and reflected wave (10% chose this)
-
the minimum distance reached by a signal after one reflection by the ionosphere (42% chose this)
-
the maximum distance reached by a signal after one reflection by the ionosphere (43% chose this)
-
the minimum distance reached by a ground-wave signal (5% chose this)
Parallel tuned circuits offer:
-
an impedance equal to resistance of the circuit (27% chose this)
-
high impedance at resonance (37% chose this)
-
low impedance at resonance (26% chose this)
-
zero impedance at resonance (10% chose this)
A low pass filter in an HF station is most effective when connected:
-
as close as possible to the linear amplifier output (40% chose this)
-
as close as possible to the antenna (22% chose this)
-
as close as possible to the antenna tuner output (19% chose this)
-
as close as possible to the linear amplifier input (19% chose this)
Approximately how long is the driven element of a Yagi antenna for 14.0 MHz?
-
5.21 metres (17 feet) (24% chose this)
-
10.67 metres (35 feet) (20% chose this)
-
20.12 metres (66 feet) (15% chose this)
-
10.21 metres (33.5 feet) (41% chose this)
In a single sideband and CW receiver, the output of the ___________ is connected to the mixer.
-
product detector (9% chose this)
-
local oscillator (45% chose this)
-
intermediate frequency amplifier (22% chose this)
-
beat frequency oscillator (25% chose this)
In order of priority, a distress message comes before:
-
an emergency message (46% chose this)
-
no other messages (20% chose this)
-
a government priority message (9% chose this)
-
a safety message (25% chose this)
In a single sideband and CW receiver, the __________ is connected to the output of the product detector.
-
local oscillator (14% chose this)
-
radio frequency amplifier (23% chose this)
-
audio frequency amplifier (42% chose this)
-
intermediate frequency amplifier (20% chose this)
Radiotelephone signals in a frequency band below ____ MHz cannot be automatically retransmitted, unless these signals are received from a station operated by a person qualified to transmit on frequencies below the above frequency:
-
50 MHz (14% chose this)
-
144 MHz (9% chose this)
-
29.5 MHz (44% chose this)
-
29.7 MHz (33% chose this)
In which frequency range is meteor scatter most effective for extended-range communication?
-
10 - 30 MHz (19% chose this)
-
3 - 10 MHz (14% chose this)
-
100 - 300 MHz (22% chose this)
-
30 - 100 MHz (45% chose this)
If you made a quarter-wavelength vertical antenna for 21.125 MHz, how long would it be?
-
6.76 metres (22.2 ft) (8% chose this)
-
3.36 metres (11.0 ft) (42% chose this)
-
3.6 metres (11.8 ft) (40% chose this)
-
7.2 metres (23.6 ft) (9% chose this)
At what point in the solar cycle does the 20-metre band usually support worldwide propagation during daylight hours?
-
Only at the maximum point of the solar cycle (33% chose this)
-
At the summer solstice (9% chose this)
-
At any point in the solar cycle (41% chose this)
-
Only at the minimum point of the solar cycle (17% chose this)
Transmitter RF amplifiers can generate parasitic oscillations:
-
on VHF frequencies only (2% chose this)
-
on the transmitter fundamental frequency (5% chose this)
-
on harmonics of the transmitter frequency (48% chose this)
-
above or below the transmitter frequency (46% chose this)
Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
-
frequency modulation (FM) on 29.6 MHz (26% chose this)
-
Morse radiotelegraphy (CW) on 10.11 MHz (11% chose this)
-
300 bps packet on 10.148 MHz (15% chose this)
-
single-sideband (SSB) on 10.12 MHz (48% chose this)
What are some reasons to use parallel-conductor transmission line?
-
It has low impedance, and will operate with a high SWR (21% chose this)
-
It will operate with a high SWR, and it works well when tied down to metal objects (8% chose this)
-
It has a low impedance, and has less loss than coaxial cable (30% chose this)
-
It will operate with a high SWR, and has less loss than coaxial cable (41% chose this)
A 100% efficient transformer has a turns ratio of 1/5. If the secondary current is 50 milliamperes, the primary current is:
-
2 500 mA (10% chose this)
-
0.01 A (35% chose this)
-
0.25 mA (15% chose this)
-
0.25 A (40% chose this)
What happens to the feed point impedance of a ground-plane antenna when its radials are changed from horizontal to downward-sloping?
-
It approaches zero (5% chose this)
-
It increases (44% chose this)
-
It decreases (34% chose this)
-
It stays the same (17% chose this)
The impedances in ohms at the feed point of the dipole and folded dipole in free space are, respectively:
-
52 and 100 (31% chose this)
-
52 and 200 (9% chose this)
-
73 and 300 (44% chose this)
-
73 and 150 (16% chose this)
In a frequency modulation receiver, the ________ is located between the filter and the limiter.
-
local oscillator (12% chose this)
-
mixer (24% chose this)
-
radio frequency amplifier (17% chose this)
-
intermediate frequency amplifier (47% chose this)
What is a digipeater?
-
A repeater that changes audio signals to digital data (28% chose this)
-
A station that retransmits any data that it receives (20% chose this)
-
A station that retransmits only data that is marked to be retransmitted (41% chose this)
-
A repeater built using only digital electronics parts (11% chose this)
In a frequency modulation transmitter, the ___________is located between the oscillator and the power amplifier.
-
frequency multiplier (44% chose this)
-
microphone (7% chose this)
-
speech amplifier (6% chose this)
-
modulator (43% chose this)
Which of the following modes of transmission is usually detected with a product detector?
-
Single sideband suppressed carrier (45% chose this)
-
Double sideband full carrier (8% chose this)
-
Frequency modulation (35% chose this)
-
Pulse modulation (12% chose this)
According to Safety Code 6, what is the maximum safe power output to the antenna of a hand-held VHF or UHF radio?
-
10 watts (38% chose this)
-
25 watts (12% chose this)
-
125 milliwatts (4% chose this)
-
Not specified (46% chose this)
When operating on frequencies below 148 MHz:
-
the bandwidth for any emission must not exceed 3 kHz (32% chose this)
-
the frequency stability of the transmitter must be at least two parts per million over a period of one hour (5% chose this)
-
an overmodulation indicator must be used (15% chose this)
-
the frequency stability must be comparable to crystal control (47% chose this)
During a club ARRL Field Day outing, reception on the 20 m SSB station is compromised every time the 20 m CW station is on the air. What might cause such interference?
-
Improper station grounding (12% chose this)
-
Harmonic radiation (32% chose this)
-
Receiver desensitization (47% chose this)
-
Both stations are fed from the same generator (10% chose this)
The maximum bandwidth of an amateur station's transmission allowed in the band 144 to 148 MHz is:
-
6 kHz (23% chose this)
-
20 kHz (15% chose this)
-
15 kHz (12% chose this)
-
30 kHz (49% chose this)
If you let another amateur with additional qualifications than yours control your station, what operating privileges are allowed?
-
Any privileges allowed by the additional qualifications (42% chose this)
-
All the emission privileges of the additional qualifications, but only the frequency privileges of your qualifications (3% chose this)
-
All the frequency privileges of the additional qualifications, but only the emission privileges of your qualifications (7% chose this)
-
Only the privileges allowed by your qualifications (48% chose this)
In a single sideband and CW receiver, the output of the _____________ is connected to the mixer.
-
audio frequency amplifier (17% chose this)
-
radio frequency amplifier (48% chose this)
-
filter (18% chose this)
-
intermediate frequency amplifier (18% chose this)
If the voltage applied to two resistors in series is doubled, how much will the total power change?
-
Increase four times (41% chose this)
-
Decrease to half (9% chose this)
-
Double (43% chose this)
-
No change (6% chose this)
In a SSB transmission, the carrier is:
-
transmitted with one sideband (36% chose this)
-
inserted at the transmitter (9% chose this)
-
of no use at the receiver (8% chose this)
-
reinserted at the receiver (46% chose this)
Who has authority over antenna installations including antenna masts and towers?
-
The majority of neighbours residing within a distance of three times the proposed antenna structure height (6% chose this)
-
The Minister of Innovation, Science and Economic Development (48% chose this)
-
The person planning to use the tower or their spouse (3% chose this)
-
The local municipal government (43% chose this)
A reliable means to prevent or indicate overmodulation must be employed at an amateur station if:
-
radiotelegraphy is used (7% chose this)
-
persons other than the holder of the authorization use the station (4% chose this)
-
radiotelephony is used (50% chose this)
-
DC input power to the anode or collector circuit of the final RF stage is in excess of 250 watts (39% chose this)
What is the most FM transmitter power a holder of only Basic Qualification may use on 147 MHz?
-
250 W DC input (49% chose this)
-
1000 watts DC input (11% chose this)
-
200 watts PEP output (26% chose this)
-
25 watts PEP output (15% chose this)
Which of the following statements is not correct? Radiotelephone signals may be retransmitted:
-
in the 144-148 MHz frequency band, when received from a station operated by a person with only Basic Qualification (21% chose this)
-
in the 21 MHz band, when received in a VHF band, from a station operated by a person with only Basic Qualification (50% chose this)
-
in the 29.5-29.7 MHz band, when received in a VHF band, from a station operated by a person with only Basic Qualification (20% chose this)
-
in the 50-54 MHz frequency band, when received from a station operated by a person with only Basic Qualification (10% chose this)
A television receiver suffers interference on channel 5 (76 - 82 MHz) only when you transmit on 14 MHz. From your home you see the tower of a commercial FM station known to broadcast on 92.5 MHz. Which of these solutions would you try first?
-
Insert a low pass filter at the antenna connector of the HF transmitter (27% chose this)
-
Insert a high pass filter at the antenna connector of the HF transmitter (13% chose this)
-
Insert a low pass filter at the antenna connector of the television (16% chose this)
-
Insert a high pass filter at the antenna connector of the television (45% chose this)
The spacing between the elements on a three-element Yagi antenna, representing the best overall choice, is _____ of a wavelength.
-
0.10 (19% chose this)
-
0.50 (24% chose this)
-
0.75 (12% chose this)
-
0.20 (45% chose this)
What property allows an RF bypass capacitor on an audio circuit to divert an offending radio signal?
-
High reactance at audio frequencies (16% chose this)
-
Low reactance at radio frequencies (43% chose this)
-
High reactance at radio frequencies (35% chose this)
-
Low reactance at audio frequencies (6% chose this)
Which of the following describes full break-in telegraphy (QSK)?
-
An operator must activate a manual send/receive switch before and after every transmission (16% chose this)
-
Breaking stations send the Morse code prosign "BK" (23% chose this)
-
Incoming signals are received between transmitted Morse code dots and dashes (50% chose this)
-
Automatic keyers are used to send Morse code instead of hand keys (11% chose this)
Approximately how long is the director element of a Yagi antenna for 21.1 MHz?
-
5.18 metres (17 feet) (16% chose this)
-
3.2 metres (10.5 feet) (24% chose this)
-
12.8 metres (42 feet) (12% chose this)
-
6.4 metres (21 feet) (48% chose this)
What emission is produced by a reactance modulator connected to an RF power amplifier?
-
Pulse modulation (15% chose this)
-
Phase modulation (46% chose this)
-
Multiplex modulation (3% chose this)
-
Amplitude modulation (36% chose this)
What is a sporadic-E condition?
-
A brief decrease in VHF signals caused by sunspot variations (12% chose this)
-
Patches of dense ionization at E-region height (46% chose this)
-
Partial tropospheric ducting at E-region height (18% chose this)
-
Variations in E-region height caused by sunspot variations (24% chose this)
The "amateur radio service" is defined in:
-
the Standards for the Operation of Radio Stations in the Amateur Radio Service (13% chose this)
-
the FCC's Part 97 rules (2% chose this)
-
the Radiocommunication Regulations (28% chose this)
-
the Radiocommunication Act (57% chose this)
The type of transmission line best suited to operating at a high standing wave ratio is:
-
300 ohm twin-lead (13% chose this)
-
600 ohm open wire line (46% chose this)
-
75 ohm twin-lead (5% chose this)
-
coaxial line (36% chose this)
Except for one band, the maximum bandwidth of an amateur station's transmission allowed between 7 and 28 MHz is:
-
6 kHz (55% chose this)
-
15 kHz (7% chose this)
-
20 kHz (21% chose this)
-
30 kHz (16% chose this)
The purpose of a balanced modulator in an SSB transmitter is to:
-
ensure that the percentage of modulation is kept constant (22% chose this)
-
make sure that the carrier and both sidebands are in phase (22% chose this)
-
suppress the carrier and pass on the two sidebands (47% chose this)
-
make sure that the carrier and both sidebands are 180 degrees out of phase (9% chose this)
What is the correct way to call "CQ" when using Morse code?
-
Send the letters "CQ" ten times, followed by "DE", followed by your call sign sent once (2% chose this)
-
Send the letters "CQ" over and over (2% chose this)
-
Send the letters "CQ" three times, followed by "DE", followed by your call sign sent three times (52% chose this)
-
Send the letters "CQ" three times, followed by "DE", followed by your call sign sent once (44% chose this)
In a single sideband transmitter, the output of the ___________ is connected to the balanced modulator.
-
speech amplifier (49% chose this)
-
filter (15% chose this)
-
variable frequency oscillator (26% chose this)
-
linear amplifier (10% chose this)
The characteristic impedance of a transmission line is:
-
the dynamic impedance of the line at the operating frequency (9% chose this)
-
the ratio of the power supplied to the line to the power delivered to the load (31% chose this)
-
equal to the pure resistance which, if connected to the end of the line, will absorb all the power arriving along it (45% chose this)
-
the impedance of a section of the line one wavelength long (15% chose this)
When selecting a single-sideband phone transmitting frequency, what minimum frequency separation from a contact in progress should you allow (between suppressed carriers) to minimize interference?
-
Approximately 10 kHz (7% chose this)
-
Approximately 3 kHz (50% chose this)
-
150 to 500 Hz (16% chose this)
-
Approximately 6 kHz (27% chose this)
An interfering signal from a transmitter is found to have a frequency of 57 MHz (TV Channel 2 is 54 - 60 MHz). This signal could be the:
-
second harmonic of a 10 metre transmission (53% chose this)
-
crystal oscillator operating on its fundamental (17% chose this)
-
seventh harmonic of an 80 metre transmission (7% chose this)
-
third harmonic of a 15 metre transmission (23% chose this)
Which of the following is not correct? While operating in Canada a radio amateur licensed by the Government of the United States must:
-
obtain a Canadian amateur certificate before operating in Canada (48% chose this)
-
add to his call sign the Canadian call sign prefix for the geographic location of the station (19% chose this)
-
qualify his identification when operating phone by adding to the call sign the word "mobile" or "portable" or when operating Morse code by adding a slash "/" (13% chose this)
-
identify with the call sign assigned by the FCC (19% chose this)
You have connected your hand-held VHF transceiver to an outside gain antenna. You now hear a mixture of signals together with different modulation on your desired frequency. What is the nature of this interference?
-
Audio stage intermodulation interference (5% chose this)
-
Receiver intermodulation interference (47% chose this)
-
Harmonic interference from other stations (41% chose this)
-
Audio stage overload interference (7% chose this)
In an amateur digital radio system, the __________________ interfaces with the computer.
-
power supply (2% chose this)
-
transceiver (53% chose this)
-
input/output (43% chose this)
-
antenna (2% chose this)
In a bipolar transistor, the _____________ compares closest to the plate of a triode vacuum tube.
-
gate (11% chose this)
-
emitter (20% chose this)
-
base (20% chose this)
-
collector (49% chose this)
What is the usual bandwidth of a frequency-modulated amateur signal for +/- 5kHz deviation?
-
Greater than 20 kHz (10% chose this)
-
Between 10 and 20 kHz (46% chose this)
-
Less than 5 kHz (10% chose this)
-
Between 5 and 10 kHz (34% chose this)
How many grids are there in a triode vacuum tube?
-
Three plus a filament (17% chose this)
-
One (50% chose this)
-
Two (6% chose this)
-
Three (26% chose this)
In a single sideband and CW receiver, the __________ is in between the filter and product detector.
-
intermediate frequency amplifier (46% chose this)
-
audio frequency amplifier (8% chose this)
-
beat frequency oscillator (28% chose this)
-
radio frequency amplifier (18% chose this)
Which of the following bands of amateur frequencies has a maximum allowed bandwidth of less than 6 kHz. That band is:
-
1.8 to 2.0 MHz (24% chose this)
-
10.1 to 10.15 MHz (54% chose this)
-
18.068 to 18.168 MHz (9% chose this)
-
24.89 to 24.99 MHz (13% chose this)
The two basic types of field effect transistors (FET) are:
-
NPN and PNP (41% chose this)
-
germanium and silicon (4% chose this)
-
inductive and capacitive (8% chose this)
-
N and P channel (47% chose this)
Parasitic oscillations in the RF power amplifier stage of a transmitter may be found:
-
at high frequencies only (4% chose this)
-
at low frequencies only (4% chose this)
-
at high or low frequencies (49% chose this)
-
on harmonic frequencies (44% chose this)
A communications receiver has four filters installed in it, respectively designated as 250 Hz, 500 Hz, 2.4 kHz, and 6 kHz. If you were listening to single sideband, which filter would you utilize?
-
6 kHz (24% chose this)
-
500 Hz (7% chose this)
-
2.4 kHz (52% chose this)
-
250 Hz (17% chose this)
In a single sideband and CW receiver, the _____________ is in between the mixer and intermediate frequency amplifier.
-
filter (53% chose this)
-
radio frequency amplifier (10% chose this)
-
beat frequency oscillator (20% chose this)
-
product detector (16% chose this)
The signal "QRM" signifies:
-
I am being interfered with (53% chose this)
-
Are you troubled by static (16% chose this)
-
your signals are fading (15% chose this)
-
is my transmission being interfered with (16% chose this)
In a parallel-resonant circuit at resonance, the circuit has a:
-
high impedance (47% chose this)
-
low impedance (35% chose this)
-
low mutual inductance (9% chose this)
-
high mutual inductance (9% chose this)
Selectivity can be placed in the audio stages of a receiver by the utilization of RC active or passive audio filters. If you were to copy CW, which of the following bandpasses would you choose?
-
300 - 2700 Hz (15% chose this)
-
100 - 1100 Hz (27% chose this)
-
750 - 850 Hz (49% chose this)
-
2100 - 2300 Hz (9% chose this)
The characteristic impedance of a coaxial line:
-
can be the same for different diameter line (47% chose this)
-
changes significantly with the frequency of the energy it carries (23% chose this)
-
is correct for only one size of line (11% chose this)
-
is greater for larger diameter line (19% chose this)
What is the low angle radiation pattern of an ideal half-wavelength dipole HF antenna in free space installed parallel to the Earth?
-
It is a circle (equal radiation in all directions) (12% chose this)
-
It is two smaller lobes on one side of the antenna, and one larger lobe on the other side (13% chose this)
-
It is a figure-eight, off both ends of the antenna (24% chose this)
-
It is a figure-eight, perpendicular to the antenna (52% chose this)
According to Safety Code 6, what frequencies cause us the greatest risk from RF energy?
-
Above 1500 MHz (16% chose this)
-
3 to 30 MHz (12% chose this)
-
30 to 300 MHz (50% chose this)
-
300 to 3000 MHz (21% chose this)
Digital transmissions use signals called __________ to transmit the states 1 and 0:
-
mark and space (47% chose this)
-
packet and AMTOR (19% chose this)
-
Baudot and ASCII (10% chose this)
-
dot and dash (24% chose this)
The "Q signal" which signifies "I will call you again" is:
-
QRZ (11% chose this)
-
QRS (13% chose this)
-
QRT (21% chose this)
-
QRX (54% chose this)
A communications receiver has four filters installed in it, respectively designated as 250 Hz, 500 Hz, 2.4 kHz and 6 kHz. You are copying a CW transmission and there is a great deal of interference. Which one of the filters would you choose?
-
2.4 kHz (20% chose this)
-
6 kHz (14% chose this)
-
250 Hz (51% chose this)
-
500 Hz (15% chose this)
A local amateur reports your 100W 2M simplex VHF transmission as 30 dB over S9. To reduce your signal to S9, you would reduce your power to ______ watts.
-
33.3 W (14% chose this)
-
100 mW (42% chose this)
-
1 W (16% chose this)
-
10 W (28% chose this)
Which sideband is commonly used for 20-metre phone operation?
-
Upper (57% chose this)
-
Lower (31% chose this)
-
FM (7% chose this)
-
Double (5% chose this)
Approximately how much gain does a half-wave dipole have over an isotropic radiator?
-
6.0 dB (8% chose this)
-
2.1 dB (50% chose this)
-
1.5 dB (12% chose this)
-
3.0 dB (30% chose this)
If you wish to reduce the current flowing in a field effect transistor, you could:
-
increase the forward bias voltage (21% chose this)
-
increase the forward bias gain (8% chose this)
-
increase the reverse bias voltage (49% chose this)
-
decrease the reverse bias voltage (21% chose this)
Morse code is usually transmitted by radio as:
-
a series of key-clicks (37% chose this)
-
a continuous carrier (13% chose this)
-
a voice-modulated carrier (1% chose this)
-
an interrupted carrier (49% chose this)
When selecting a RTTY transmitting frequency, what minimum frequency separation from a contact in progress should you allow (center to center) to minimize interference?
-
60 Hz (6% chose this)
-
250 to 500 Hz (47% chose this)
-
Approximately 6 kHz (27% chose this)
-
Approximately 3 kHz (20% chose this)
The lowest loss transmission line on HF is:
-
open wire line (47% chose this)
-
75 ohm twin-lead (7% chose this)
-
coaxial cable (34% chose this)
-
300 ohm twin-lead (13% chose this)
In a single sideband and CW receiver, the __________ output is connected to the audio frequency amplifier.
-
beat frequency oscillator (16% chose this)
-
intermediate frequency amplifier (17% chose this)
-
product detector (48% chose this)
-
local oscillator (19% chose this)
What type of propagation may allow a weak signal to be heard at a distance too far for ground-wave propagation but too near for normal sky-wave propagation?
-
Sporadic-E skip (26% chose this)
-
Ground wave (6% chose this)
-
Scatter (50% chose this)
-
Short-path skip (18% chose this)
In a single sideband transmitter, the output of the _________ is connected to the mixer.
-
linear amplifier (12% chose this)
-
antenna (3% chose this)
-
variable frequency oscillator (48% chose this)
-
radio frequency oscillator (37% chose this)
What is the reason for using a properly adjusted speech processor with a single-sideband phone transmitter?
-
It reduces average transmitter power requirements (10% chose this)
-
It reduces unwanted noise pickup from the microphone (25% chose this)
-
It improves voice frequency fidelity (11% chose this)
-
It improves signal intelligibility at the receiver (54% chose this)
What is meant by antenna gain?
-
The numerical ratio of the signal in the forward direction to the signal in the back direction (10% chose this)
-
The numerical ratio of the amount of power radiated by an antenna compared to the transmitter output power (35% chose this)
-
The power amplifier gain minus the transmission line losses (7% chose this)
-
The numerical ratio relating the radiated signal strength of an antenna to that of another antenna (48% chose this)
The drain of a field effect transistor corresponds to the _______ of a bipolar transistor.
-
emitter (29% chose this)
-
collector (49% chose this)
-
base (15% chose this)
-
source (7% chose this)
How does the bandwidth of a folded dipole antenna compare with that of a simple dipole antenna?
-
It is greater (49% chose this)
-
It is essentially the same (27% chose this)
-
It is less than 50% (11% chose this)
-
It is 0.707 times the bandwidth (12% chose this)
In a typical single-sideband phone transmitter, what circuit processes signals from the balanced modulator and sends signals to the mixer?
-
Filter (53% chose this)
-
IF amplifier (14% chose this)
-
RF amplifier (16% chose this)
-
Carrier oscillator (17% chose this)
What is the solar-flux index?
-
A measure of solar activity that is taken annually (7% chose this)
-
A measure of solar activity that is taken at a specific frequency (53% chose this)
-
Another name for the American sunspot number (2% chose this)
-
A measure of solar activity that compares daily readings with results from the last six months (39% chose this)
Which ionospheric region most affects sky-wave propagation on the 6 metre band?
-
The D region (29% chose this)
-
The E region (50% chose this)
-
The F2 region (13% chose this)
-
The F1 region (8% chose this)
A receiver receives an incoming signal of 3.54 MHz, and the local oscillator produces a signal of 3.995 MHz. To which frequency should the IF be tuned?
-
3.995 MHz (11% chose this)
-
3.54 MHz (27% chose this)
-
455 kHz (56% chose this)
-
7.435 MHz (6% chose this)
What is an advantage of downward sloping radials on a ground plane antenna?
-
It lowers the radiation angle (20% chose this)
-
It brings the feed point impedance closer to 50 ohms (54% chose this)
-
It increases the radiation angle (19% chose this)
-
It brings the feed point impedance closer to 300 ohms (7% chose this)
What is the proper Q signal to use to see if a frequency is in use before transmitting on CW?
-
QRU? (12% chose this)
-
QRZ? (22% chose this)
-
QRL? (55% chose this)
-
QRV? (11% chose this)
A receiver designed for SSB reception must have a BFO (beat frequency oscillator) because:
-
it beats with the received carrier to produce the other sideband (23% chose this)
-
it reduces the passband of the IF stages (2% chose this)
-
it phases out the unwanted sideband signal (23% chose this)
-
the suppressed carrier must be replaced for detection (51% chose this)
Where the proponent and a stakeholder other than the general public reach an impasse over a proposed antenna system the final decision will:
-
be postponed until those in dispute reach an agreement (3% chose this)
-
be made by the municipality in which the antenna is to be built (32% chose this)
-
be made by a majority vote of those residing within a radius of three times the antenna structure height (4% chose this)
-
be made by Innovation, Science and Economic Development Canada (61% chose this)
Which statement is not correct?
-
Safety Code 6 specifies lower exposure limits for the general public in uncontrolled areas than it does for people in controlled areas (21% chose this)
-
hand held transmitters are excluded from Safety Code 6 requirements (57% chose this)
-
Antenna gain, distance, transmitter power and frequency are all factors which influence the electric field strength and a person's exposure to radio energy. (12% chose this)
-
Safety Code 6 uses different units for the magnetic field strength and the electric field strength when stating limits (9% chose this)
What are some advantages of a Yagi with wide element spacing?
-
High gain, less critical tuning and wider bandwidth (56% chose this)
-
High gain, lower loss and a low SWR (18% chose this)
-
High front-to-back ratio and lower input resistance (21% chose this)
-
Shorter boom length, lower weight and wind resistance (5% chose this)
The radio wave which follows a path from the transmitter to the ionosphere and back to Earth is known correctly as the:
-
skip wave (43% chose this)
-
ionospheric wave (53% chose this)
-
F layer (1% chose this)
-
surface wave (3% chose this)
In a frequency modulation receiver, the __________ is located between the limiter and the audio frequency amplifier.
-
frequency discriminator (53% chose this)
-
intermediate frequency amplifier (20% chose this)
-
speaker or headphones (8% chose this)
-
local oscillator (20% chose this)
In an amateur digital radio system, the transceiver is connected to the ___________.
-
modem (51% chose this)
-
computer (26% chose this)
-
scanner (3% chose this)
-
input/output (20% chose this)
Which of these common connectors has the lowest loss at UHF?
-
A type-N connector (50% chose this)
-
An F-type cable connector (7% chose this)
-
A BNC connector (15% chose this)
-
A PL-259 connector (28% chose this)
Single sideband is not permitted in the band:
-
18.068 to 18.168 MHz (8% chose this)
-
24.89 to 24.99 MHz (15% chose this)
-
7.0 to 7.3 MHz (21% chose this)
-
10.1 to 10.15 MHz (56% chose this)
Of the components in an HF station, which component would normally be connected closest to the antenna, antenna tuner and dummy load?
-
SWR bridge (17% chose this)
-
Antenna switch (50% chose this)
-
Transceiver (21% chose this)
-
Low pass filter (13% chose this)
In a bipolar transistor, the _____________ compares closest to the cathode of a triode vacuum tube.
-
collector (25% chose this)
-
base (12% chose this)
-
drain (11% chose this)
-
emitter (52% chose this)
What does chirp mean?
-
A small change in a transmitter's frequency each time it is keyed (52% chose this)
-
A high-pitched tone which is received along with a CW signal (35% chose this)
-
A slow change in transmitter frequency as the circuit warms up (4% chose this)
-
An overload in a receiver's audio circuit whenever CW is received (9% chose this)
A transmission line differs from an ordinary circuit or network in communications or signalling devices in one very important way. That important aspect is:
-
inductive reactance (23% chose this)
-
resistance (14% chose this)
-
propagation delay (51% chose this)
-
capacitive reactance (11% chose this)
In Canada, the 20 meter amateur band corresponds in frequency to:
-
13.500 to 14.000 MHz (8% chose this)
-
15.000 to 15.750 MHz (31% chose this)
-
16.350 to 16.830 MHz (6% chose this)
-
14.000 to 14.350 MHz (55% chose this)
What kind of filter would you use to attenuate an interfering carrier signal while receiving an SSB transmission?
-
An all pass filter (2% chose this)
-
A pi-network filter (1% chose this)
-
A notch filter (53% chose this)
-
A band pass filter (44% chose this)
The amateur radio service is authorized to share a portion of what Industrial Scientific Medical (ISM) band that is heavily used by licence exempt devices?
-
2300 to 2450 MHz (49% chose this)
-
430 to 450 MHz (24% chose this)
-
144 to 148 MHz (12% chose this)
-
1240 to 1300 MHz (14% chose this)
In Morse code transmission, local RF interference (key-clicks) is produced by:
-
the power amplifier, and is caused by high frequency parasitic oscillations (13% chose this)
-
poor waveshaping caused by a poor voltage regulator (17% chose this)
-
the making and breaking of the circuit at the Morse key (55% chose this)
-
frequency shifting caused by poor voltage regulation (14% chose this)
An antenna changeover switch in a transmitter-receiver combination is necessary:
-
so that one antenna can be used for transmitter and receiver (51% chose this)
-
to change antennas for operation on other frequencies (32% chose this)
-
to prevent RF currents entering the receiver circuits (13% chose this)
-
to allow more than one transmitter to be used (4% chose this)
In a regulated power supply, the output of the rectifier is connected to the ______________.
-
transformer (14% chose this)
-
regulator (23% chose this)
-
filter (52% chose this)
-
output (10% chose this)
Approximately how long is the reflector element of a Yagi antenna for 28.1 MHz?
-
2.66 metres (8.75 feet) (15% chose this)
-
5.33 metres (17.5 feet) (52% chose this)
-
4.88 metres (16 feet) (11% chose this)
-
10.67 metres (35 feet) (23% chose this)
During relief operations in the days following a disaster, when may an amateur use his equipment to communicate on frequencies outside amateur bands?
-
Never (53% chose this)
-
When relaying messages on behalf of government agencies (8% chose this)
-
When messages are destined to agencies without amateur radio support (3% chose this)
-
When normal communication systems are overloaded, damaged or disrupted (37% chose this)
The skip distance of a sky wave will be greatest when the:
-
ionosphere is most densely ionized (39% chose this)
-
signal given out is strongest (4% chose this)
-
angle between the ground and the radiation is smallest (54% chose this)
-
polarization is vertical (3% chose this)
How should you answer a routine Morse code "CQ" call?
-
Send your call sign followed by your name, station location and a signal report (20% chose this)
-
Send the other station's call sign twice, followed by "DE", followed by your call sign twice (61% chose this)
-
Send your call sign four times (3% chose this)
-
Send the other station's call sign once, followed by "DE", followed by your call sign four times (16% chose this)
In a CW transmitter, the output from the __________ is connected to the driver/buffer.
-
telegraph key (32% chose this)
-
power supply (6% chose this)
-
master oscillator (52% chose this)
-
power amplifier (9% chose this)
The source of a field effect transistor corresponds to the _______ of a bipolar transistor.
-
collector (31% chose this)
-
emitter (50% chose this)
-
base (14% chose this)
-
drain (5% chose this)
One solution to multiband operation with a shortened radiator is the "trap dipole" or trap vertical. These "traps" are actually:
-
large wire-wound resistors (8% chose this)
-
coils wrapped around a ferrite rod (31% chose this)
-
hollow metal cans (5% chose this)
-
a coil and capacitor in parallel (57% chose this)
What does standing-wave ratio mean?
-
The ratio of maximum to minimum inductances on a transmission line (9% chose this)
-
The ratio of maximum to minimum resistances on a transmission line (7% chose this)
-
The ratio of maximum to minimum impedances on a transmission line (32% chose this)
-
The ratio of maximum to minimum voltages on a transmission line (52% chose this)
Why is a Yagi antenna often used for radiocommunications on the 20-metre band?
-
It is smaller, less expensive and easier to erect than a dipole or vertical antenna (15% chose this)
-
It provides the highest possible angle of radiation for the HF bands (15% chose this)
-
It helps reduce interference from other stations off to the side or behind (54% chose this)
-
It provides excellent omnidirectional coverage in the horizontal plane (16% chose this)
Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
-
fast-scan television (ATV) on 440 MHz (17% chose this)
-
fast-scan television (ATV) on 145 MHz (54% chose this)
-
AMTOR on 14.08 MHz (12% chose this)
-
300 bps packet on 10.145 MHz (18% chose this)
In a frequency modulation receiver, the_________ is in between the mixer and the intermediate frequency amplifier.
-
limiter (13% chose this)
-
frequency discriminator (22% chose this)
-
radio frequency amplifier (8% chose this)
-
filter (56% chose this)
If the forward gain of a six-element Yagi is about 10 dBi, what would the gain of two of these antennas be if they were "stacked"?
-
20 dBi (36% chose this)
-
10 dBi (9% chose this)
-
13 dBi (53% chose this)
-
7 dBi (1% chose this)
Key-clicks, heard from a Morse code transmitter at a distant receiver, are the result of:
-
power supply hum modulating the carrier (6% chose this)
-
sparks emitting RF from the key contacts (21% chose this)
-
changes in oscillator frequency on keying (21% chose this)
-
too sharp rise and decay times of the keyed carrier (52% chose this)
What is the maximum authorized bandwidth within the frequency range of 50 to 148 MHz?
-
30 kHz (57% chose this)
-
20 kHz (21% chose this)
-
The total bandwidth shall not exceed that of a single-sideband phone emission (14% chose this)
-
The total bandwidth shall not exceed 10 times that of a CW emission (8% chose this)
A change or variation in signal strength at the antenna, caused by differences in path lengths, is called:
-
fading (54% chose this)
-
absorption (5% chose this)
-
fluctuation (16% chose this)
-
path loss (25% chose this)
Which sideband is commonly used on 3755 kHz for phone operation?
-
Upper (34% chose this)
-
Lower (56% chose this)
-
FM (5% chose this)
-
Double (5% chose this)
What is one advantage of carrier suppression in a double-sideband phone transmission?
-
Only half the bandwidth is required for the same information content (28% chose this)
-
Greater modulation percentage is obtainable with lower distortion (12% chose this)
-
Simpler equipment can be used to receive a double-sideband suppressed-carrier signal (7% chose this)
-
More power can be put into the sidebands for a given power amplifier capacity (53% chose this)
In AX.25 packet-radio operation, what equipment connects to a terminal-node controller?
-
A transceiver and a modem (33% chose this)
-
A DTMF keypad, a monitor and a transceiver (9% chose this)
-
A DTMF microphone, a monitor and a transceiver (7% chose this)
-
A transceiver, a computer and possibly a GPS receiver (51% chose this)
International communications on behalf of third parties may be transmitted by an amateur station only if:
-
the countries concerned have authorized such communications (55% chose this)
-
English or French is used to identify the station at the end of each transmission (2% chose this)
-
the countries for which the traffic is intended have registered their consent to such communications with the ITU (42% chose this)
-
radiotelegraphy is used (1% chose this)
What kind of unusual HF propagation allows weak signals from the skip zone to be heard occasionally?
-
Ducting (24% chose this)
-
Ground-wave (7% chose this)
-
Scatter-mode (55% chose this)
-
Sky-wave with low radiation angle (14% chose this)
Intermodulation in a broadcast receiver by a nearby transmitter would be noticed in the receiver as:
-
distortion on transmitted voice peaks (10% chose this)
-
interference continuously across the dial (25% chose this)
-
the undesired signal in the background of the desired signal (57% chose this)
-
interference only when a broadcast signal is tuned (8% chose this)
In the event of interference to a neighbour's television receiver, according to EMCAB-2 it will be deemed that a radio amateur's transmission is the cause of the problem if the field strength:
-
near the TV is below Innovation, Science and Economic Development Canada's specified immunity criteria (8% chose this)
-
at the transmitting location is below the radio amateur's maximum allowable transmitter power (5% chose this)
-
at the transmitting location is above the radio amateur's maximum allowable transmitter power (30% chose this)
-
on the neighbour's premises is above Innovation, Science and Economic Development Canada's specified immunity criteria (56% chose this)
One possible cause of TV interference by harmonics from an SSB transmitter is from "flat topping" - driving the power amplifier into non-linear operation. The most appropriate remedy for this is:
-
use another antenna (3% chose this)
-
reduce oscillator output (14% chose this)
-
reduce microphone gain (60% chose this)
-
retune transmitter output (23% chose this)
Calculate the value of resistance necessary to drop 100 volts with current flow of 0.8 milliamperes:
-
1250 ohms (7% chose this)
-
1.25 kilohms (8% chose this)
-
125 kilohms (48% chose this)
-
125 ohms (38% chose this)
Which two elements in a field effect transistor exhibit fairly similar characteristics?
-
Source and gate (14% chose this)
-
Gate and drain (21% chose this)
-
Source and base (12% chose this)
-
Source and drain (54% chose this)
On which amateur frequency band is the extended-distance propagation effect of sporadic-E most often observed?
-
20 metres (16% chose this)
-
2 metres (14% chose this)
-
6 metres (55% chose this)
-
160 metres (15% chose this)
What is a band plan?
-
A guideline for using different operating modes within an amateur band (58% chose this)
-
A plan of operating schedules within an amateur band published by Innovation, Science and Economic Development Canada (33% chose this)
-
A plan devised by a club to best use a frequency band during a contest (4% chose this)
-
A guideline for deviating from amateur frequency band allocations (5% chose this)
When sunspot numbers are high, how is propagation affected?
-
High frequency radio signals become weak and distorted (18% chose this)
-
Frequencies up to 40 MHz or even higher become usable for long-distance communication (60% chose this)
-
High frequency radio signals are absorbed (13% chose this)
-
Frequencies up to 100 MHz or higher are normally usable for long-distance communication (9% chose this)
At lower HF frequencies, radiocommunication out to 200 km, during daytime, is made possible by:
-
troposphere (11% chose this)
-
skip wave (10% chose this)
-
ionosphere (23% chose this)
-
ground wave (56% chose this)
Polarization change often takes place on radio waves that are propagated over long distances. Which of these does not cause polarization change?
-
Passage through magnetic fields (Faraday rotation) (15% chose this)
-
Refractions (11% chose this)
-
Parabolic interaction (56% chose this)
-
Reflections (18% chose this)
What is the usual bandwidth of a single-sideband amateur signal?
-
Between 3 and 6 kHz (40% chose this)
-
Between 2 and 3 kHz (51% chose this)
-
1 kHz (4% chose this)
-
2 kHz (5% chose this)
In a series resonant circuit at resonance, the circuit has:
-
high mutual inductance (11% chose this)
-
low impedance (52% chose this)
-
high impedance (27% chose this)
-
low mutual inductance (10% chose this)
In a frequency modulation receiver, the ________is connected to the input of the radio frequency amplifier.
-
frequency discriminator (15% chose this)
-
limiter (7% chose this)
-
antenna (58% chose this)
-
mixer (20% chose this)
What type of messages may be transmitted to an amateur station in a foreign country?
-
Messages of a technical nature or personal remarks of relative unimportance (59% chose this)
-
Messages of any type, if the foreign country allows third-party communications with Canada (28% chose this)
-
Messages that are not religious, political, or patriotic in nature (8% chose this)
-
Messages of any type (5% chose this)
All communication frequencies throughout the spectrum are affected in varying degrees by the:
-
ionosphere (25% chose this)
-
aurora borealis (0% chose this)
-
atmospheric conditions (19% chose this)
-
sun (55% chose this)
In a frequency modulation receiver, the output of the ________is connected to the mixer.
-
local oscillator (55% chose this)
-
frequency discriminator (14% chose this)
-
intermediate frequency amplifier (22% chose this)
-
speaker or headphones (9% chose this)
In the event of the malfunctioning of a neighbour's broadcast FM receiver and stereo system, it will be deemed that the affected equipment's lack of immunity is the cause if the field strength:
-
at the transmitting location is below the radio amateur's maximum allowable transmitter power (15% chose this)
-
at the transmitting location is above 100 watts (4% chose this)
-
near the affected equipment is above Innovation, Science and Economic Development Canada's specified immunity criteria (22% chose this)
-
on the premises of the affected equipment is below Innovation, Science and Economic Development Canada's specified immunity criteria (59% chose this)
Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
-
single-sideband (SSB) on 3.76 MHz (13% chose this)
-
fast-scan television (ATV) on 14.23 MHz (57% chose this)
-
slow-scan television (SSTV) on 14.23 MHz (12% chose this)
-
frequency modulation (FM) on 29.6 MHz (18% chose this)
Which of the following is not a provision of the ITU Radio Regulations which apply to Canadian radio amateurs?
-
It is forbidden to transmit international messages on behalf of third parties, unless those countries make special arrangements (20% chose this)
-
Radiocommunications between countries shall be forbidden, if the administration of one of the countries objects (14% chose this)
-
Administrations shall take such measures as they judge necessary to verify the operational and technical qualifications of amateurs (10% chose this)
-
Transmissions between countries shall not include any messages of a technical nature, or remarks of a personal character (57% chose this)
The operator of an amateur station, who is the holder of a Basic Qualification, shall ensure that the station power, when expressed as RF output power measured across an impedance matched load, does not exceed:
-
150 watts peak power (22% chose this)
-
560 watts peak-envelope power, for transmitters producing any type of single sideband emission (62% chose this)
-
2500 watts peak power (2% chose this)
-
1000 watts carrier power for transmitters producing other emissions (13% chose this)
Where in your station can you verify that legal power limits are respected?
-
At the power amplifier RF input terminals inside the transmitter or amplifier (14% chose this)
-
On the antenna itself, after the transmission line (16% chose this)
-
At the power supply terminals inside the transmitter or amplifier (15% chose this)
-
At the antenna connector of the transmitter or amplifier (54% chose this)
What is the maximum distance along the Earth's surface that is normally covered in one hop using the E region?
-
2000 km (1250 miles) (57% chose this)
-
300 km (190 miles) (10% chose this)
-
4000 km (2500 miles) (17% chose this)
-
None; the E region does not support radio-wave propagation (15% chose this)
If a neighbour reports television interference whenever you transmit, no matter what band you use, what is probably the cause of the interference?
-
Receiver overload (59% chose this)
-
Incorrect antenna length (5% chose this)
-
Receiver VR tube discharge (2% chose this)
-
Too little transmitter harmonic suppression (35% chose this)
In Canada, radio amateurs may use which of the following for radio control of models:
-
50 to 54 MHz only (10% chose this)
-
all amateur frequency bands (24% chose this)
-
50 to 54, 144 to 148, and 222 to 225 MHz only (10% chose this)
-
all amateur frequency bands above 30 MHz (56% chose this)
If the impedance terminating a transmission line differs significantly from the characteristic impedance of the line, what will be observed at the input of the line?
-
An impedance nearly equal to the characteristic impedance (21% chose this)
-
Some value of impedance influenced by line length (56% chose this)
-
An infinite impedance (9% chose this)
-
A negative impedance (13% chose this)
Which combination of resistors could make up a 50 ohms dummy load capable of safely dissipating 5 watts?
-
Four 2-watt 200 ohms resistors in parallel (51% chose this)
-
Two 5-watt 100 ohms resistors in series (20% chose this)
-
Two 2-watt 25 ohms resistors in series (19% chose this)
-
Ten quarter-watt 500 ohms resistors in parallel (10% chose this)
If you were to cut a half wave dipole for 3.75 MHz, what would be its approximate length?
-
32 meters (105 ft) (11% chose this)
-
45 meters (145 ft) (17% chose this)
-
75 meters (245 ft) (13% chose this)
-
38 meters (125 ft) (58% chose this)
What is the proper Q signal to ask who is calling you on CW?
-
QRL? (16% chose this)
-
QRT? (7% chose this)
-
QRZ? (60% chose this)
-
QSL? (17% chose this)
Which is not an element of the Innovation, Science and Economic Development Canada Public Consultation Process for antenna systems?
-
Providing written notice (24% chose this)
-
Addressing relevant questions comments and concerns (4% chose this)
-
Providing an opportunity for the public to respond regarding measures to address reasonable and relevant concerns (12% chose this)
-
Participating in public meetings on the project (60% chose this)
In a single sideband transmitter, the _____________ is in between the balanced modulator and the mixer.
-
speech amplifier (9% chose this)
-
microphone (2% chose this)
-
filter (58% chose this)
-
radio frequency oscillator (30% chose this)
What kind of antenna transmission line can be constructed using two conductors which are maintained a uniform distance apart using insulated spreaders?
-
75 ohm twin-lead (10% chose this)
-
300 ohm twin-lead (27% chose this)
-
600 ohm open wire line (52% chose this)
-
Coaxial cable (11% chose this)
The signal "QRN" means:
-
I am being interfered with (21% chose this)
-
I am troubled by static (62% chose this)
-
I am busy (8% chose this)
-
are you troubled by static (9% chose this)
What type of solar radiation is most responsible for ionization in the outer atmosphere?
-
Thermal (3% chose this)
-
Ultraviolet (56% chose this)
-
Microwave (5% chose this)
-
Ionized particles (35% chose this)
Which semiconductor device has characteristics most similar to a triode vacuum tube?
-
Zener diode (10% chose this)
-
Bipolar transistor (31% chose this)
-
Field effect transistor (54% chose this)
-
Junction diode (4% chose this)
An amateur station may be used to communicate with:
-
any station transmitting in the amateur bands (43% chose this)
-
stations operated under similar authorizations (53% chose this)
-
any stations which are identified for special contests (1% chose this)
-
armed forces stations during special contests and training exercises (3% chose this)
What is the maximum transmitting power an amateur station may use for SSB operation on 7055 kHz, if the operator has Basic with Honours qualifications?
-
560 watts PEP output (58% chose this)
-
1000 watts PEP output (19% chose this)
-
2000 watts PEP output (2% chose this)
-
200 watts PEP output (21% chose this)
If you are operating simplex on a repeater frequency, why would it be good amateur practice to change to another frequency?
-
Changing the repeater's frequency requires the authorization of Innovation, Science and Economic Development Canada (12% chose this)
-
Changing the repeater's frequency is not practical (60% chose this)
-
The repeater's output power may ruin your station's receiver (6% chose this)
-
There are more repeater operators than simplex operators (21% chose this)
In a vacuum tube, the electrode that is usually a cylinder of wire mesh is the _______.
-
grid (56% chose this)
-
filament (heater) (24% chose this)
-
cathode (14% chose this)
-
plate (6% chose this)
What can be done at an amateur station to continue HF communications during a sudden ionospheric disturbance?
-
Try a different frequency shift (14% chose this)
-
Try a higher frequency band (59% chose this)
-
Try the other sideband (9% chose this)
-
Try a different antenna polarization (19% chose this)
How does the bandwidth of a transmitted signal affect selective fading?
-
It is the same for both wide and narrow bandwidths (10% chose this)
-
Only the receiver bandwidth determines the selective fading effect (7% chose this)
-
It is more pronounced at narrow bandwidths (25% chose this)
-
It is more pronounced at wide bandwidths (58% chose this)
Which emission mode is best for auroral propagation?
-
FM (13% chose this)
-
SSB (22% chose this)
-
CW (60% chose this)
-
RTTY (5% chose this)
If a single-sideband phone transmitter is 100% modulated, what will a speech processor do to the transmitter's power?
-
It will decrease the peak power output (13% chose this)
-
It will decrease the average power output (10% chose this)
-
It will add nothing to the output Peak Envelope Power (PEP) (57% chose this)
-
It will increase the output PEP (19% chose this)
A low pass filter in an HF station is most effective when connected:
-
as close as possible to the antenna (21% chose this)
-
midway between the transceiver and antenna (6% chose this)
-
as close as possible to the transceiver output (59% chose this)
-
as close as possible to the antenna tuner output (13% chose this)
What circuit has a variable-frequency oscillator connected to a buffer/driver and a power amplifier?
-
A single-sideband transmitter (28% chose this)
-
A digital radio transmitter (8% chose this)
-
A VFO-controlled CW transmitter (58% chose this)
-
A crystal-controlled AM transmitter (6% chose this)
The holder of an amateur radio certificate may operate radio controlled models:
-
if the frequency used is below 30 MHz (10% chose this)
-
if only pulse modulation is used (3% chose this)
-
on all frequencies above 30 MHz (65% chose this)
-
if the control transmitter does not exceed 15 kHz of occupied bandwidth (22% chose this)
In Canada, the 75/80 metre amateur band corresponds in frequency to:
-
4.0 to 4.5 MHz (14% chose this)
-
4.5 to 5.0 MHz (7% chose this)
-
3.5 to 4.0 MHz (59% chose this)
-
3.0 to 3.5 MHz (20% chose this)
What is solar flux?
-
A measure of the tilt of the Earth's ionosphere on the side toward the sun (3% chose this)
-
The number of sunspots on the side of the sun facing the Earth (13% chose this)
-
The density of the sun's magnetic field (25% chose this)
-
The radio energy emitted by the sun (59% chose this)
An unmodulated carrier may be transmitted only:
-
when transmitting SSB (15% chose this)
-
in frequency bands below 30 MHz (8% chose this)
-
for brief tests on frequencies below 30 MHz (61% chose this)
-
if the output to the final RF amplifier is kept under 5W (15% chose this)
Approximately how long is each leg of a symmetrical delta loop antenna driven element for 28.7 MHz?
-
10.67 metres (35 feet) (20% chose this)
-
3.5 metres (11.5 feet) (56% chose this)
-
2.67 metres (8.75 feet) (18% chose this)
-
7.13 metres (23.4 feet) (6% chose this)
Australia, Japan, and Southeast Asia are in which ITU Region?
-
Region 1 (11% chose this)
-
Region 2 (6% chose this)
-
Region 4 (22% chose this)
-
Region 3 (61% chose this)
What sound is heard from a public-address system if audio rectification of a nearby single-sideband phone transmission occurs?
-
A steady hum whenever the transmitter's carrier is on the air (19% chose this)
-
Distorted speech from the transmitter's signals (61% chose this)
-
Clearly audible speech from the transmitter's signals (5% chose this)
-
On-and-off humming or clicking (15% chose this)
If no load is attached to the secondary winding of a transformer, what is current in the primary winding called?
-
Direct current (14% chose this)
-
Latent current (26% chose this)
-
Stabilizing current (8% chose this)
-
Magnetizing current (52% chose this)
If the power output of a transmitter is increased by four times, how might a nearby receiver's S-meter reading change?
-
Increase by approximately four S units (29% chose this)
-
Decrease by approximately four S units (3% chose this)
-
Decrease by approximately one S unit (4% chose this)
-
Increase by approximately one S unit (65% chose this)
In a regulated power supply, the output of the filter connects to the ____________________.
-
transformer (11% chose this)
-
rectifier (16% chose this)
-
output (22% chose this)
-
regulator (51% chose this)
Adding a series inductance to an antenna would:
-
increase the resonant frequency (31% chose this)
-
have little effect (4% chose this)
-
have no change on the resonant frequency (7% chose this)
-
decrease the resonant frequency (58% chose this)
What is the maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?
-
300 km (190 miles) (5% chose this)
-
4000 km (2500 miles) (56% chose this)
-
None; the F2 region does not support radio-wave propagation (11% chose this)
-
2000 km (1250 miles) (28% chose this)
A low pass filter suitable for a high frequency transmitter would:
-
pass audio frequencies below 3 kHz (10% chose this)
-
attenuate frequencies above 30 MHz (60% chose this)
-
pass audio frequencies above 3 kHz (5% chose this)
-
attenuate frequencies below 30 MHz (25% chose this)
In a single sideband transmitter, the output of the variable frequency oscillator is connected to the __________.
-
linear amplifier (17% chose this)
-
mixer (59% chose this)
-
antenna (7% chose this)
-
balanced modulator (17% chose this)
Radio amateur operation must not cause interference to other radio services operating in which of the following bands?
-
7.0 to 7.1 MHz (10% chose this)
-
144.0 to 148.0 MHz (22% chose this)
-
14.0 to 14.2 MHz (11% chose this)
-
430.0 to 450.0 MHz (57% chose this)
Why is a loading coil often used with an HF mobile vertical antenna?
-
To filter out electrical noise (21% chose this)
-
To tune out capacitive reactance (55% chose this)
-
To lower the losses (13% chose this)
-
To lower the Q (12% chose this)
In Canada, the 15 metre amateur band corresponds in frequency to:
-
14.000 to 14.350 MHz (10% chose this)
-
28.000 to 29.700 MHz (8% chose this)
-
21.000 to 21.450 MHz (65% chose this)
-
18.068 to 18.168 MHz (17% chose this)
In Canada, the 160 metre amateur band corresponds in frequency to:
-
2.0 to 2.25 MHz (9% chose this)
-
2.25 to 2.5 MHz (5% chose this)
-
1.8 to 2.0 MHz (68% chose this)
-
1.5 to 2.0 MHz (19% chose this)
When a series LCR circuit is tuned to the frequency of the source, the:
-
line current leads the applied voltage (13% chose this)
-
impedance is maximum (29% chose this)
-
line current reaches maximum (54% chose this)
-
line current lags the applied voltage (4% chose this)
On the VHF and UHF bands, polarization of the receiving antenna is very important in relation to the transmitting antenna, yet on HF bands it is relatively unimportant. Why is that so?
-
Greater selectivity is possible with HF receivers making changes in polarization redundant (14% chose this)
-
The ionosphere can change the polarization of the signal from moment to moment (59% chose this)
-
The ground wave and the sky wave continually shift the polarization (11% chose this)
-
Anomalies in the Earth's magnetic field produce a profound effect on HF polarization but not on VHF & UHF frequencies (16% chose this)
What makes HF scatter signals often sound distorted?
-
The state of the E-region at the point of refraction (13% chose this)
-
Energy scattered into the skip zone through several radio-wave paths (60% chose this)
-
Auroral activity and changes in the Earth's magnetic field (16% chose this)
-
Propagation through ground waves that absorb much of the signal (12% chose this)
In a single sideband and CW receiver, the __________ is connected to the radio frequency amplifier and the local oscillator.
-
beat frequency oscillator (9% chose this)
-
product detector (13% chose this)
-
filter (18% chose this)
-
mixer (60% chose this)
At the end of suspended antenna wire, insulators are used. These act to:
-
limit the electrical length of the antenna (61% chose this)
-
increase the effective antenna length (2% chose this)
-
allow the antenna to be more easily held vertically (10% chose this)
-
prevent any loss of radio waves by the antenna (27% chose this)
What is the maximum transmitting output power an amateur station may use on 3750 kHz, if the operator has Basic and Morse code qualifications?
-
1500 watts PEP output for SSB operation (12% chose this)
-
2000 watts PEP output for SSB operation (4% chose this)
-
560 watts PEP output for SSB operation (64% chose this)
-
1000 watts PEP output for SSB operation (20% chose this)
The maximum DC input to the final stage of an amateur transmitter, when the operator is the holder of both the Basic and Advanced qualifications, is:
-
1000 watts (63% chose this)
-
250 watts (16% chose this)
-
1500 watts (15% chose this)
-
500 watts (7% chose this)
In a bipolar transistor, the _____________ compares closest to the control grid of a triode vacuum tube.
-
base (55% chose this)
-
emitter (16% chose this)
-
source (8% chose this)
-
collector (21% chose this)
What kind of antenna transmission line is made of two conductors held apart by insulated rods?
-
Twisted pair (4% chose this)
-
Open wire line (59% chose this)
-
Coaxial cable (13% chose this)
-
Twin lead in a plastic ribbon (24% chose this)
One of the following is not considered to be communications on behalf of a third party, even though the message may be originated by, or addressed to, a non-amateur:
-
all messages originated by Canadian amateur stations (12% chose this)
-
messages addressed to points within Canada from the United States (3% chose this)
-
messages that are handled within local networks during a simulated emergency exercise (21% chose this)
-
messages that originate from the United States Military Auxiliary Radio System (MARS) (64% chose this)
What two sub-regions of ionosphere exist only in the daytime?
-
F1 and F2 (61% chose this)
-
Troposphere and stratosphere (5% chose this)
-
Electrostatic and electromagnetic (3% chose this)
-
D and E (31% chose this)
In free space, what is the radiation characteristic of a half-wave dipole?
-
Omnidirectional (21% chose this)
-
Maximum radiation at 45 degrees to the plane of the antenna (6% chose this)
-
Minimum radiation from the ends, maximum broadside (61% chose this)
-
Maximum radiation from the ends, minimum broadside (12% chose this)
When is the ionosphere least ionized?
-
Shortly before dawn (62% chose this)
-
Just after noon (9% chose this)
-
Just after dusk (9% chose this)
-
Shortly before midnight (20% chose this)
Which of the following terms does not apply to packet radio?
-
Automatic Packet Reporting System (APRS) (6% chose this)
-
AX.25 (11% chose this)
-
Baudot (54% chose this)
-
ASCII (29% chose this)
The reactance of capacitors increases as:
-
frequency decreases (54% chose this)
-
applied voltage increases (15% chose this)
-
applied voltage decreases (8% chose this)
-
frequency increases (23% chose this)
The Default Public Consultation Process for antenna systems requires proponents to address:
-
comments reported in media reporting on the proposal (3% chose this)
-
opposition to the project (3% chose this)
-
reasonable and relevant concerns provided in writing within the 30 day public comment period (68% chose this)
-
all questions, comments and concerns raised (26% chose this)
Excluding enhanced propagation modes, what is the approximate range of normal VHF tropospheric propagation?
-
1600 km (1000 miles) (13% chose this)
-
800 km (500 miles) (62% chose this)
-
2400 km (1500 miles) (17% chose this)
-
3200 km (2000 miles) (8% chose this)
What is one way to determine if the maximum usable frequency (MUF) is high enough to support 28 MHz propagation between your station and western Europe?
-
Listen for WWVH time signals on 20 MHz (12% chose this)
-
Listen for signals from 10-metre beacon stations (69% chose this)
-
Listen for signals from 20-metre beacon stations (15% chose this)
-
Listen for signals from 39-metre broadcast stations (5% chose this)
How does a capacitor react to AC?
-
As the frequency of the applied AC increases, the reactance increases (27% chose this)
-
As the amplitude of the applied AC increases, the reactance increases (10% chose this)
-
As the amplitude of the applied AC increases, the reactance decreases (8% chose this)
-
As the frequency of the applied AC increases, the reactance decreases (55% chose this)
What electromagnetic wave polarization does a half-wavelength antenna have when it is perpendicular to the Earth's surface?
-
Horizontal (28% chose this)
-
Parabolical (5% chose this)
-
Vertical (61% chose this)
-
Circular (6% chose this)
How can the bandwidth of a parasitic beam antenna be increased?
-
Use larger diameter elements (58% chose this)
-
Use traps on the elements (22% chose this)
-
Use tapered-diameter elements (6% chose this)
-
Use closer element spacing (14% chose this)
How should the microphone gain control be adjusted on a single-sideband phone transmitter?
-
For a dip in plate current (3% chose this)
-
For slight movement of the ALC meter on modulation peaks (60% chose this)
-
For full deflection of the ALC meter on modulation peaks (16% chose this)
-
For 100% frequency deviation on modulation peaks (22% chose this)
In a CW transmitter, the _____________ controls when RF energy is applied to the antenna.
-
driver/buffer (13% chose this)
-
power amplifier (19% chose this)
-
telegraph key (60% chose this)
-
master oscillator (8% chose this)
What does "RST 579" mean in a Morse code contact?
-
Your signal is perfectly readable, weak strength, and with perfect tone (5% chose this)
-
Your signal is fairly readable, fair strength, and with perfect tone (20% chose this)
-
Your signal is barely readable, moderately strong, and with faint ripple (5% chose this)
-
Your signal is perfectly readable, moderately strong, and with perfect tone (70% chose this)
What is frequency coordination on VHF and UHF bands?
-
The selection of simplex frequencies by individual operators (5% chose this)
-
A part of the planning prior to a contest (0% chose this)
-
A process which seeks to carefully assign frequencies so as to minimize interference with neighbouring repeaters (66% chose this)
-
A band plan detailing modes and frequency segments within a band (30% chose this)
The usual effect of ionospheric storms is to:
-
produce extreme weather changes (1% chose this)
-
prevent communications by ground wave (7% chose this)
-
increase the maximum usable frequency (30% chose this)
-
cause a fade-out of sky-wave signals (61% chose this)
Where a land use authority or municipality has established a public consultation process for antenna systems, who determines how public consultation should take place?
-
The person planning to erect an antenna structure (1% chose this)
-
The provincial government (3% chose this)
-
The municipality or local land use authority (63% chose this)
-
Innovation, Science and Economic Development Canada (33% chose this)
Voltage drop means:
-
the voltage developed across the terminals of a component (50% chose this)
-
any point in a radio circuit which has zero voltage (2% chose this)
-
the difference in voltage at output terminals of a transformer (19% chose this)
-
the voltage which is dissipated before useful work is accomplished (30% chose this)
What type of filter should be connected to a TV receiver as the first step in trying to prevent RF overload from an amateur HF station transmission?
-
High-pass (64% chose this)
-
Low-pass (20% chose this)
-
Band-pass (14% chose this)
-
No filter (1% chose this)
Compared to a dipole antenna, what are the directional radiation characteristics of a cubical quad antenna?
-
The quad has less directivity in the horizontal plane but more directivity in the vertical plane (11% chose this)
-
The quad has less directivity in both horizontal and vertical planes (8% chose this)
-
The quad has more directivity in both horizontal and vertical planes (62% chose this)
-
The quad has more directivity in the horizontal plane but less directivity in the vertical plane (20% chose this)
How does a coil react to AC?
-
As the frequency of the applied AC increases, the reactance decreases (19% chose this)
-
As the frequency of the applied AC increases, the reactance increases (56% chose this)
-
As the amplitude of the applied AC increases, the reactance decreases (10% chose this)
-
As the amplitude of the applied AC increases, the reactance increases (16% chose this)
What is an advantage of using a trap antenna?
-
It has high directivity at the higher frequencies (8% chose this)
-
It has high gain (12% chose this)
-
It minimizes harmonic radiation (19% chose this)
-
It may be used for multi-band operation (61% chose this)
Two mobile stations are traveling along the same road in close proximity to each other and having trouble communicating through a local repeater. Why may it be necessary to use simplex operation to communicate between these cars?
-
The strong signal of one mobile transmitter may desensitize the receiver of the other mobile receiver (63% chose this)
-
Simplex operation does not require the use of CTCSS tones (7% chose this)
-
There is less time delay using simplex operation compared to using a repeater (13% chose this)
-
There are many more simplex frequencies than repeater frequencies available (18% chose this)
What is one meaning of the Q signal "QSY"?
-
Send faster (6% chose this)
-
Send more slowly (21% chose this)
-
Change frequency (68% chose this)
-
Use more power (6% chose this)
What does "RST 459" mean in a Morse code contact?
-
Your signal is very readable, very strong, and with perfect tone (22% chose this)
-
Your signal is barely readable, very weak, and with perfect tone (7% chose this)
-
Your signal is moderately readable, very weak, and with hum on the tone (4% chose this)
-
Your signal is quite readable, fair strength, and with perfect tone (67% chose this)
Radiocommunications transmitted by stations other than a broadcasting station may be divulged or used:
-
during peacetime civil emergencies (30% chose this)
-
if it is transmitted by an amateur station (61% chose this)
-
if transmitted by any station using the international Morse code (1% chose this)
-
if transmitted in English or French (7% chose this)
If a non-amateur friend is using your station to talk to someone in Canada, and a foreign station breaks in to talk to your friend, what should you do?
-
Since you can talk to foreign amateurs, your friend may keep talking as long as you are the control operator (27% chose this)
-
Report the incident to the foreign amateur's government (1% chose this)
-
Stop all discussions and quickly sign off (2% chose this)
-
Have your friend wait until you determine from the foreign station if their administration permits third-party traffic (70% chose this)
In Canada, the 40 metre amateur band corresponds in frequency to:
-
6.0 to 6.3 MHz (7% chose this)
-
7.7 to 8.0 MHz (20% chose this)
-
7.0 to 7.3 MHz (66% chose this)
-
6.5 to 6.8 MHz (7% chose this)
In a frequency modulation receiver, the __________ is in between the antenna and the mixer.
-
audio frequency amplifier (10% chose this)
-
local oscillator (13% chose this)
-
intermediate frequency amplifier (8% chose this)
-
radio frequency amplifier (69% chose this)
If you install a 6 metre Yagi on a tower 60 metres (200 ft) from your transmitter, which of the following transmission lines provides the least loss?
-
RG-59 (11% chose this)
-
RG-58 (19% chose this)
-
RG-213 (63% chose this)
-
RG-174 (7% chose this)
A high pass filter would normally be fitted:
-
between transmitter output and transmission line (26% chose this)
-
at the antenna terminals of the TV receiver (65% chose this)
-
between microphone and speech amplifier (8% chose this)
-
at the Morse key or keying relay in a transmitter (2% chose this)
What is a parasitic beam antenna?
-
An antenna where the driven element obtains its radio energy by induction or radiation from director elements (23% chose this)
-
An antenna where all elements are driven by direct connection to the transmission line (8% chose this)
-
An antenna where wave traps are used to magnetically couple the elements (6% chose this)
-
An antenna where some elements obtain their radio energy by induction or radiation from a driven element (62% chose this)
Which of the following transmission lines will give the best match to the base of a quarter-wave ground-plane antenna?
-
300 ohms coaxial cable (6% chose this)
-
50 ohms coaxial cable (63% chose this)
-
300 ohms balanced transmission line (12% chose this)
-
75 ohms balanced transmission line (20% chose this)
How many microfarads is 1 000 000 picofarads?
-
1000 microfarads (34% chose this)
-
0.001 microfarad (6% chose this)
-
1 microfarad (55% chose this)
-
1 000 000 000 microfarads (6% chose this)
The delta loop antenna consists of two or more triangular structures mounted on a boom. The overall length of the driven element is approximately:
-
one wavelength (62% chose this)
-
one-quarter of a wavelength (14% chose this)
-
two wavelengths (4% chose this)
-
one-half of a wavelength (20% chose this)
As the frequency of a signal is changed, what happens to signal loss in a transmission line?
-
Signal loss is the least when the signal's wavelength is the same as the transmission line's length (17% chose this)
-
Signal loss is the same for any frequency (13% chose this)
-
Signal loss increases with increasing frequency (59% chose this)
-
Signal loss increases with decreasing frequency (11% chose this)
The characteristic impedance of a parallel wire transmission line does not depend on the:
-
centre to centre distance between conductors (15% chose this)
-
dielectric (15% chose this)
-
velocity of energy on the line (58% chose this)
-
radius of the conductors (13% chose this)
The distance from the transmitter to the nearest point where the sky wave returns to the Earth is called the:
-
angle of radiation (8% chose this)
-
maximum usable frequency (4% chose this)
-
skip distance (64% chose this)
-
skip zone (24% chose this)
What causes tropospheric ducting of radio waves?
-
A temperature inversion (65% chose this)
-
Lightning between the transmitting and receiving stations (11% chose this)
-
An aurora to the north (13% chose this)
-
A very low pressure area (11% chose this)
The three main parameters against which the quality of a receiver is measured are:
-
selectivity, stability and frequency range (23% chose this)
-
sensitivity, stability and cross-modulation (6% chose this)
-
sensitivity, selectivity and image rejection (10% chose this)
-
sensitivity, selectivity and stability (61% chose this)
In a semiconductor diode, electrons flow from:
-
grid to anode (3% chose this)
-
cathode to anode (63% chose this)
-
anode to cathode (33% chose this)
-
cathode to grid (1% chose this)
A band reject filter will:
-
allow only two frequencies through (1% chose this)
-
pass frequencies below 100 MHz (2% chose this)
-
stop frequencies each side of a band (35% chose this)
-
pass frequencies each side of a band (63% chose this)
The range of frequencies to be amplified by a speech amplifier is typically:
-
300 to 1000 Hz (11% chose this)
-
40 to 40 000 Hz (16% chose this)
-
300 to 3000 Hz (62% chose this)
-
3 to 300 Hz (11% chose this)
The holder of an Amateur Radio Operator Certificate with Basic Qualification is limited to a maximum of _______ watts when expressed as direct current input power to the anode or collector circuit of the transmitter stage supplying radio frequency energy to the antenna:
-
250 (70% chose this)
-
1000 (13% chose this)
-
750 (5% chose this)
-
100 (12% chose this)
The optimum working frequency provides the best long range HF communication. Compared with the maximum usable frequency (MUF), it is usually:
-
double the MUF (4% chose this)
-
half the MUF (19% chose this)
-
slightly higher (8% chose this)
-
slightly lower (69% chose this)
In a field effect transistor, the ___________ is the terminal where the charge carriers enter the channel.
-
source (65% chose this)
-
gate (22% chose this)
-
drain (4% chose this)
-
emitter (9% chose this)
Inductive reactance may be increased by:
-
an increase in the applied voltage (17% chose this)
-
an increase in the applied frequency (59% chose this)
-
a decrease in the applied frequency (19% chose this)
-
a decrease in the supplied current (5% chose this)
TV twin-lead transmission line can be used for a transmission line in an amateur station. The impedance of this line is approximately:
-
70 ohms (10% chose this)
-
300 ohms (59% chose this)
-
600 ohms (14% chose this)
-
50 ohms (17% chose this)
In an HF Station, the antenna tuner is commonly used:
-
to tune low pass filters (6% chose this)
-
with most antennas when operating below 14 MHz (65% chose this)
-
with most antennas when operating above 14 MHz (19% chose this)
-
to tune into dummy loads (9% chose this)
What does "monitoring" mean on a packet-radio frequency?
-
A member of the Amateur Auxiliary is copying all messages (3% chose this)
-
A receiving station is displaying all messages sent to it, and replying that the messages are being received correctly (34% chose this)
-
Innovation, Science and Economic Development Canada is monitoring all messages (3% chose this)
-
A receiving station is displaying messages that may not be sent to it, and is not replying to any message (60% chose this)
Harmonics may be produced in the RF power amplifier of a transmitter if:
-
modulation is applied to a high-level stage (9% chose this)
-
excessive drive signal is applied to it (67% chose this)
-
the output tank circuit is tuned to the fundamental frequency (7% chose this)
-
the oscillator frequency is unstable (17% chose this)
How can intermodulation be reduced?
-
By adjusting the passband tuning (15% chose this)
-
By installing a suitable filter at the receiver (65% chose this)
-
By using a better antenna (3% chose this)
-
By increasing the receiver RF gain while decreasing the AF gain (17% chose this)
Which statement about two-element delta loops and quad antennas is true?
-
They are effective only when constructed using insulated wire (6% chose this)
-
They perform poorly above HF (11% chose this)
-
They compare favourably with a three-element Yagi (64% chose this)
-
They perform very well only at HF (19% chose this)
The ITU Radio Regulations limit those radio amateurs, who have not demonstrated proficiency in Morse code, to frequencies above:
-
1.8 MHz (4% chose this)
-
3.5MHz (4% chose this)
-
28 MHz (21% chose this)
-
none of the other answers (70% chose this)
What sound is heard from a public-address system if audio rectification of a nearby CW transmission occurs?
-
A steady whistling (6% chose this)
-
On-and-off humming or clicking (68% chose this)
-
Audible, possibly distorted speech (16% chose this)
-
Muffled, severely distorted speech (10% chose this)
Which of these amateur bands may be heavily occupied by licence exempt devices?
-
3.5 to 4.0 MHz (6% chose this)
-
430 to 450 MHz (25% chose this)
-
135.7 to 137.8 kHz (7% chose this)
-
902 to 928 MHz (63% chose this)
An isotropic antenna is:
-
a dummy load (5% chose this)
-
a half-wave reference dipole (21% chose this)
-
a hypothetical point source (66% chose this)
-
an infinitely long piece of wire (8% chose this)
What usually happens to radio waves with frequencies below the maximum usable frequency (MUF) when they are sent into the ionosphere?
-
They pass through the ionosphere (14% chose this)
-
They are bent back to the Earth (65% chose this)
-
They are changed to a frequency above the MUF (1% chose this)
-
They are completely absorbed by the ionosphere (20% chose this)
How many directly driven elements do most Yagi antennas have?
-
Two (8% chose this)
-
Three (27% chose this)
-
None (2% chose this)
-
One (63% chose this)
A distant station asks for a signal report on a local repeater you monitor. Which fact affects your assessment?
-
Signal reports are only useful on simplex communications (11% chose this)
-
The other operator needs to know how well he is received at the repeater, not how well you receive the repeater (70% chose this)
-
The repeater gain affects your S-meter reading (3% chose this)
-
You need to listen to the repeater input frequency for an accurate signal report (16% chose this)
The cubical "quad" or "quad" antenna consists of two or more square loops of wire. The driven element has an approximate overall length of:
-
one wavelength (66% chose this)
-
three-quarters of a wavelength (4% chose this)
-
two wavelengths (9% chose this)
-
one-half wavelength (21% chose this)
When switching from receive to transmit:
-
the receiving antenna should be connected (14% chose this)
-
the power supply should be off (5% chose this)
-
the receiver should be muted (67% chose this)
-
the transmit oscillator should be turned off (14% chose this)
If a parasitic element slightly longer than a horizontal dipole antenna is placed parallel to the dipole 0.1 wavelength from it and at the same height, what effect will this have on the antenna's radiation pattern?
-
A major lobe will develop in the horizontal plane, parallel to the two elements (20% chose this)
-
A major lobe will develop in the vertical plane, away from the ground (7% chose this)
-
The radiation pattern will not be affected (6% chose this)
-
A major lobe will develop in the horizontal plane, from the parasitic element toward the dipole (67% chose this)
What determines the inductance of a coil?
-
The coil diameter, the number of turns of wire used to wind the coil and the type of metal used for the wire (17% chose this)
-
The core material, the coil diameter, the length of the coil and whether the coil is mounted horizontally or vertically (3% chose this)
-
The core material, the coil diameter, the length of the coil and the number of turns of wire used to wind the coil (59% chose this)
-
The core material, the number of turns used to wind the coil and the frequency of the current through the coil (20% chose this)
Why is FM voice best for local VHF/UHF radio communications?
-
Its RF carrier stays on frequency better than the AM modes (11% chose this)
-
It provides good signal plus noise to noise ratio at low RF signal levels (59% chose this)
-
The carrier is not detectable (1% chose this)
-
It is more resistant to distortion caused by reflected signals (29% chose this)
The characteristic impedance of a transmission line is determined by the:
-
length of the line (19% chose this)
-
frequency at which the line is operated (14% chose this)
-
load placed on the line (6% chose this)
-
physical dimensions and relative positions of the conductors (61% chose this)
If alternating current is applied to the anode of a diode, what would you expect to see at the cathode?
-
No signal (11% chose this)
-
Steady direct current (9% chose this)
-
Pulsating alternating current (17% chose this)
-
Pulsating direct current (63% chose this)
If your transmitter sends signals outside the band where it is transmitting, what is this called?
-
Side tones (4% chose this)
-
Transmitter chirping (0% chose this)
-
Off-frequency emissions (29% chose this)
-
Spurious emissions (67% chose this)
An RF oscillator should be electrically and mechanically stable. This is to ensure that the oscillator does not:
-
drift in frequency (65% chose this)
-
become over modulated (14% chose this)
-
generate key-clicks (7% chose this)
-
cause undue distortion (14% chose this)
What effect does the D region of the ionosphere have on lower frequency HF signals in the daytime?
-
It has little or no effect on 80-metre radio waves (7% chose this)
-
It absorbs the signals (66% chose this)
-
It bends the radio waves out into space (4% chose this)
-
It refracts the radio waves back to Earth (23% chose this)
If two 10 ohm resistors are connected in series with a 10 volt battery, the power consumption would be:
-
100 watts (9% chose this)
-
5 watts (60% chose this)
-
10 watts (14% chose this)
-
20 watts (18% chose this)
What is the proper way to interrupt a repeater conversation to signal a distress call?
-
Break-in immediately following the transmission of the active party and state your situation and call sign (68% chose this)
-
Say "EMERGENCY" three times (15% chose this)
-
Say "SOS," then your call sign (16% chose this)
-
Say "HELP" as many times as it takes to get someone to answer (2% chose this)
Why are HF scatter signals usually weak?
-
The F region of the ionosphere absorbs most of the signal energy (21% chose this)
-
Auroral activity absorbs most of the signal energy (5% chose this)
-
Only a small part of the signal energy is scattered into the skip zone (63% chose this)
-
Propagation through ground waves absorbs most of the signal energy (11% chose this)
The total capacitance of two or more capacitors in series is:
-
always greater than the largest capacitor (7% chose this)
-
always less than the smallest capacitor (58% chose this)
-
found by adding each of the capacitors together and dividing by the total number of capacitors (20% chose this)
-
found by adding each of the capacitors together (16% chose this)
What type of interference may come from a multi-band antenna connected to a poorly tuned transmitter?
-
Harmonic radiation (69% chose this)
-
Parasitic excitation (12% chose this)
-
Intermodulation (19% chose this)
-
Auroral distortion (1% chose this)
If you receive a weak, distorted signal from a distance, and close to the maximum usable frequency, what type of propagation is probably occurring?
-
Line-of-sight (6% chose this)
-
Ducting (15% chose this)
-
Scatter (69% chose this)
-
Ground-wave (10% chose this)
In an HF station, the antenna tuner is usually used for matching the transceiver with:
-
mono-band Yagi type antennas (5% chose this)
-
tri-band Yagi antennas (3% chose this)
-
most antennas when operating below 14 MHz (63% chose this)
-
most antennas when operating above 14 MHz (29% chose this)
What does horizontal wave polarization mean?
-
The electric lines of force of a radio wave are perpendicular to the Earth's surface (7% chose this)
-
The magnetic lines of force of a radio wave are parallel to the Earth's surface (24% chose this)
-
The electric lines of force of a radio wave are parallel to the Earth's surface (64% chose this)
-
The electric and magnetic lines of force of a radio wave are perpendicular to the Earth's surface (5% chose this)
In a transmitter, excessive harmonics are produced by:
-
overdriven stages (68% chose this)
-
low SWR (4% chose this)
-
resonant circuits (24% chose this)
-
a linear amplifier (4% chose this)
The distance to Europe from your location is approximately 5000 km. What sort of propagation is the most likely to be involved?
-
Sporadic "E" (14% chose this)
-
Back scatter (2% chose this)
-
Tropospheric scatter (18% chose this)
-
Multihop (66% chose this)
Why is the F2 region mainly responsible for the longest distance radio-wave propagation?
-
Because it exists only at night (3% chose this)
-
Because it is the lowest ionospheric region (5% chose this)
-
Because it does not absorb radio waves as much as other ionospheric regions (24% chose this)
-
Because it is the highest ionospheric region (68% chose this)
To reduce energy from an HF transmitter getting into a television set, you would place a ____________ as close to the TV as possible.
-
band reject filter (11% chose this)
-
high pass filter (66% chose this)
-
low pass filter (20% chose this)
-
wave trap (3% chose this)
FM receivers perform in an unusual manner when two or more stations are present. The strongest signal, even though it is only two or three times stronger than the other signals, will be the only transmission demodulated. This is called:
-
surrender effect (13% chose this)
-
capture effect (67% chose this)
-
attach effect (3% chose this)
-
interference effect (18% chose this)
In a single sideband transmitter, the output of the linear amplifier is connected to the ______________.
-
speech amplifier (6% chose this)
-
antenna (67% chose this)
-
filter (15% chose this)
-
variable frequency oscillator (12% chose this)
On the HF bands, when is scatter propagation most likely involved?
-
When the sunspot cycle is at a minimum and D-region absorption is high (12% chose this)
-
At night (8% chose this)
-
When the F1 and F2 regions are combined (9% chose this)
-
When weak and distorted signals near or above the maximum usable frequency for normal propagation can be heard over unusual paths (71% chose this)
What is the meaning of the Q signal "QSB"?
-
Your signal is fading (67% chose this)
-
I am busy (21% chose this)
-
I have no message (2% chose this)
-
A contact is confirmed (10% chose this)
Who is calling me is denoted by the "Q signal":
-
QRP? (10% chose this)
-
QRM? (12% chose this)
-
QRZ? (73% chose this)
-
QRK? (6% chose this)
Which ionospheric region is closest to the Earth?
-
The F region (7% chose this)
-
The A region (15% chose this)
-
The D region (67% chose this)
-
The E region (11% chose this)
What factors determine the characteristic impedance of a parallel-conductor antenna transmission line?
-
The radius of the conductors and the frequency of the signal (5% chose this)
-
The frequency of the signal and the length of the line (10% chose this)
-
The distance between the centres of the conductors and the radius of the conductors (67% chose this)
-
The distance between the centres of the conductors and the length of the line (18% chose this)
What does vertical wave polarization mean?
-
The electric lines of force of a radio wave are parallel to the Earth's surface (7% chose this)
-
The electric lines of force of a radio wave are perpendicular to the Earth's surface (64% chose this)
-
The magnetic lines of force of a radio wave are perpendicular to the Earth's surface (20% chose this)
-
The electric and magnetic lines of force of a radio wave are parallel to the Earth's surface (9% chose this)
A switching system to enable the use of one antenna for a transmitter and receiver should also:
-
ground the antenna on receive (20% chose this)
-
switch between meters (9% chose this)
-
disconnect the antenna tuner (4% chose this)
-
disable the unit not being used (67% chose this)
Messages from recognized public service agencies may be handled by amateur radio stations:
-
during peace time and civil emergencies and exercises (65% chose this)
-
using Morse code only (1% chose this)
-
when Innovation, Science and Economic Development Canada has issued a special authorization (33% chose this)
-
only on the 7 and 14 MHz bands (2% chose this)
Reception of high frequency (HF) radio waves beyond 4000 km is generally made possible by:
-
surface wave (2% chose this)
-
ionospheric wave (63% chose this)
-
ground wave (3% chose this)
-
skip wave (32% chose this)
In a Yagi 3 element directional antenna, the ________ is the longest radiating element.
-
reflector (63% chose this)
-
director (10% chose this)
-
driven element (21% chose this)
-
boom (7% chose this)
In order to reduce the harmonic output of a high frequency (HF) transmitter, which of the following filters should be installed at the transmitter?
-
Rejection (5% chose this)
-
Low pass (68% chose this)
-
Key click (3% chose this)
-
High pass (24% chose this)
Which statement about recording all contacts and unanswered "CQ calls" in a station logbook or computer log is not correct?
-
A well-kept log preserves your fondest amateur radio memories for years (10% chose this)
-
A log is important for handling neighbour interference complaints (11% chose this)
-
A logbook is required by Innovation, Science and Economic Development Canada (71% chose this)
-
A log is important for recording contacts for operating awards (8% chose this)
An inductance of 10 000 microhenrys may be stated correctly as:
-
10 millihenrys (61% chose this)
-
100 millihenrys (9% chose this)
-
10 henrys (27% chose this)
-
1 000 henrys (3% chose this)
What is the accepted way to ask someone their location when using a repeater?
-
What is your 20? (18% chose this)
-
Locations are not normally told by radio (11% chose this)
-
What is your 12? (4% chose this)
-
Where are you? (67% chose this)
A semiconductor having its leads labelled gate, drain, and source is best described as a:
-
field-effect transistor (68% chose this)
-
gated transistor (13% chose this)
-
bipolar transistor (16% chose this)
-
silicon diode (4% chose this)
Communication on the 80 metre band is generally most difficult during:
-
daytime in winter (9% chose this)
-
daytime in summer (71% chose this)
-
evening in winter (15% chose this)
-
evening in summer (6% chose this)
Why does coaxial cable make a good antenna transmission line?
-
It is weatherproof, and its impedance matches most amateur antennas (65% chose this)
-
It is weatherproof, and its impedance is higher than that of most amateur antennas (6% chose this)
-
It can be used near metal objects, and its impedance is higher than that of most amateur antennas (24% chose this)
-
You can make it at home, and its impedance matches most amateur antennas (5% chose this)
The three leads from a PNP transistor are named:
-
drain, base and source (4% chose this)
-
collector, source and drain (11% chose this)
-
gate, source and drain (20% chose this)
-
collector, emitter and base (65% chose this)
What is a skip zone?
-
An area which is too far away for ground-wave propagation, but too close for sky-wave propagation (67% chose this)
-
An area which is too far away for ground-wave or sky-wave propagation (8% chose this)
-
An area covered by sky-wave propagation (21% chose this)
-
An area covered by ground-wave propagation (4% chose this)
In an amateur digital radio system, the audio connections of the modem/sound card are connected to the ___________.
-
antenna (4% chose this)
-
transceiver (67% chose this)
-
input/output (28% chose this)
-
scanner (2% chose this)
If the frequency is increased, how would this affect the loss on a transmission line?
-
It is independent of frequency (14% chose this)
-
It depends on the line length (13% chose this)
-
It would decrease (11% chose this)
-
It would increase (63% chose this)
What should be the impedance of a low pass filter as compared to the impedance of the transmission line into which it is inserted?
-
Substantially higher (10% chose this)
-
About the same (70% chose this)
-
Substantially lower (12% chose this)
-
Twice the transmission line impedance (9% chose this)
What property allows a coil wound on a ferrite core to mitigate the effects of an offending radio signal?
-
Low reactance at audio frequencies (8% chose this)
-
High reactance at audio frequencies (5% chose this)
-
High reactance at radio frequencies (61% chose this)
-
Low reactance at radio frequencies (26% chose this)
Which of the following statements is false?
-
A candidate who fails a written examination for lack of reading skills may be given an oral examination (10% chose this)
-
A candidate who fails a written examination due to not usually speaking English or French may be given an oral examination (13% chose this)
-
An examiner may request medical evidence from a practicing medical physician before accommodating testing (31% chose this)
-
A candidate with insufficient knowledge of English or French may be accompanied by an interpreter (46% chose this)
Which body organ is the most likely to be damaged from the heating effects of RF radiation?
-
Eyes (67% chose this)
-
Heart (16% chose this)
-
Liver (5% chose this)
-
Hands (12% chose this)
The diode is an important part of a simple power supply. It converts AC to DC, since it:
-
allows electrons to flow in only one direction from anode to cathode (35% chose this)
-
allows electrons to flow in only one direction from cathode to anode (60% chose this)
-
has a high resistance to AC but not to DC (3% chose this)
-
has a high resistance to DC but not to AC (3% chose this)
What causes selective fading?
-
Time differences between the receiving and transmitting stations (3% chose this)
-
Large changes in the height of the ionosphere at the receiving station ordinarily occurring shortly before sunrise and sunset (28% chose this)
-
Phase differences between radio wave components of the same transmission, as experienced at the receiving station (63% chose this)
-
Small changes in beam heading at the receiving station (5% chose this)
In general, the reactance of inductors increases with:
-
decreasing applied voltage (5% chose this)
-
increasing applied voltage (19% chose this)
-
increasing AC frequency (62% chose this)
-
decreasing AC frequency (14% chose this)
In a frequency modulation transmitter, the ____________is in between the speech amplifier and the oscillator.
-
power amplifier (7% chose this)
-
microphone (11% chose this)
-
frequency multiplier (16% chose this)
-
modulator (66% chose this)
If two equal-value capacitors are connected in series, what is their total capacitance?
-
Twice the value of one capacitor (26% chose this)
-
The same as the value of either capacitor (7% chose this)
-
The value of one capacitor times the value of the other (5% chose this)
-
Half the value of either capacitor (62% chose this)
Which of the following is not a property of an amplifier?
-
Distortion (17% chose this)
-
Loss (63% chose this)
-
Gain (2% chose this)
-
Linearity (18% chose this)
Why should we be careful in choosing a simplex frequency when operating VHF or UHF FM?
-
Some frequencies are designated for narrow band FM and others for wideband FM (10% chose this)
-
You may inadvertently choose a channel that is the input to a local repeater (75% chose this)
-
Interference may be caused to unlicensed devices operating in the same band (11% chose this)
-
Implanted medical devices share the same spectrum (4% chose this)
Which of the following is not a scatter mode?
-
Meteor scatter (18% chose this)
-
Tropospheric scatter (6% chose this)
-
Ionospheric scatter (7% chose this)
-
Absorption scatter (69% chose this)
Moving the feed point of a multi-element quad antenna from a side parallel to the ground to a side perpendicular to the ground will have what effect?
-
It will change the antenna polarization from horizontal to vertical (69% chose this)
-
It will change the antenna polarization from vertical to horizontal (23% chose this)
-
It will significantly decrease the antenna feed point impedance (4% chose this)
-
It will significantly increase the antenna feed point impedance (3% chose this)
The fact that energy transfer from primary to secondary windings in a power transformer is not perfect is indicated by:
-
large secondary currents (14% chose this)
-
high primary voltages (10% chose this)
-
warm iron laminations (65% chose this)
-
electrostatic shielding (11% chose this)
The resonant frequency of an antenna may be increased by:
-
lengthening the radiating element (21% chose this)
-
shortening the radiating element (72% chose this)
-
lowering the radiating element (3% chose this)
-
increasing the height of the radiating element (4% chose this)
Radio amateur operations are not ARE NOT protected from interference caused by another service operating in which of the following frequency bands?
-
144 to 148 MHz (13% chose this)
-
222 to 225 MHz (8% chose this)
-
50 to 54 MHz (8% chose this)
-
902 to 928 MHz (72% chose this)
The distance travelled by ground waves:
-
is less at higher frequencies (66% chose this)
-
depends on the maximum usable frequency (11% chose this)
-
is more at higher frequencies (13% chose this)
-
is the same for all frequencies (11% chose this)
If you are planning to install or modify an antenna system under what conditions may you not be required to contact land use authorities to determine public consultation requirements?
-
When transmitting will only be done at low power (4% chose this)
-
When an exclusion criterion defined by Innovation, Science and Economic Development Canada applies (77% chose this)
-
In a rural area (9% chose this)
-
When the structure is part of an amateur radio antenna (10% chose this)
Meteor scatter is most effective on what band?
-
15 metres (8% chose this)
-
160 metres (15% chose this)
-
6 metres (64% chose this)
-
40 metres (13% chose this)
In a Yagi 3 element directional antenna, the ______________ is the shortest radiating element.
-
reflector (10% chose this)
-
driven element (16% chose this)
-
director (71% chose this)
-
boom (3% chose this)
If two equal-value inductors are connected in parallel, what is their total inductance?
-
The value of one inductor times the value of the other (3% chose this)
-
Half the value of one inductor (60% chose this)
-
Twice the value of one inductor (28% chose this)
-
The same as the value of either inductor (9% chose this)
A gold tolerance band on a resistor indicates the tolerance is:
-
10% (13% chose this)
-
1% (26% chose this)
-
5% (51% chose this)
-
20% (11% chose this)
When is the ionosphere most ionized?
-
Dawn (9% chose this)
-
Midnight (6% chose this)
-
Dusk (15% chose this)
-
Midday (70% chose this)
Which region of the ionosphere is the least useful for long distance radio-wave propagation?
-
The F2 region (12% chose this)
-
The F1 region (6% chose this)
-
The E region (16% chose this)
-
The D region (67% chose this)
You add a 9 dB gain amplifier to your 2 watt handheld. What is the power output of the combination?
-
20 watts (9% chose this)
-
18 watts (22% chose this)
-
16 watts (59% chose this)
-
11 watts (10% chose this)
Your amateur radio transmitter appears to be creating interference to the television on channel 3 (60-66 MHz) when you are transmitting on the 15 metre band. Other channels are not affected. The most likely cause is:
-
a bad ground at the transmitter (2% chose this)
-
front-end overload of the TV (11% chose this)
-
harmonic radiation from the transmitter (71% chose this)
-
no high-pass filter on the TV (15% chose this)
What should you do if you learn your transmitter is producing key clicks?
-
Check the keying filter and the functioning of later stages (70% chose this)
-
Turn the receiver down (4% chose this)
-
Regulate the oscillator supply voltage (13% chose this)
-
Use a choke in the RF power output (13% chose this)
Radio amateurs may use their stations to transmit international communications on behalf of a third party only if:
-
such communications have been authorized by the other country concerned (83% chose this)
-
the amateur station has received written authorization from Innovation, Science and Economic Development Canada to pass third party traffic (15% chose this)
-
the communication is transmitted by secret code (0% chose this)
-
prior remuneration has been received (1% chose this)
What is the term for the average power supplied to an antenna transmission line during one RF cycle, at the crest of the modulation envelope?
-
Average radio-frequency power (14% chose this)
-
Peak transmitter power (8% chose this)
-
Peak envelope power (67% chose this)
-
Peak output power (11% chose this)
Which statement is correct?
-
Safety Code 6 regulates the operation of receivers only (3% chose this)
-
The operation of portable transmitting equipment is of no concern in Safety Code 6 (8% chose this)
-
Portable transmitters, operating below 1 GHz, with an output power equal to, or less than 7 watts, are exempt from the requirements of Safety Code 6 (13% chose this)
-
Safety Code 6 sets limits for RF exposure from all radio transmitters regardless of power output (76% chose this)
In a field effect transistor, the ___________ is the terminal where the charge carriers leave the channel.
-
source (13% chose this)
-
gate (14% chose this)
-
drain (69% chose this)
-
collector (4% chose this)
FM repeater operation on the 2 metre band uses one frequency for transmission and one for reception. The difference in frequency between the transmit and receive frequency is normally:
-
1 000 kHz (6% chose this)
-
400 kHz (16% chose this)
-
600 kHz (73% chose this)
-
800 kHz (5% chose this)
Which of the following is not an exception from the penalties under the Act, for divulging, intercepting or using information obtained through radiocommunication, other than broadcasting?
-
Where it is for the purpose of preserving or protecting property, or for the prevention of harm to a person (16% chose this)
-
Where it is for the purpose of giving evidence in a criminal or civil proceeding in which persons are required to give evidence (7% chose this)
-
Where it is on behalf of Canada, for the purpose of international or national defence or security (10% chose this)
-
Where it is to provide information for a journalist (67% chose this)
What happens to signals higher in frequency than the critical frequency?
-
They are absorbed by the ionosphere (22% chose this)
-
Their frequency is changed by the ionosphere to be below the maximum usable frequency (5% chose this)
-
They are reflected back to their source (5% chose this)
-
They pass through the ionosphere (68% chose this)
What is a delta loop antenna?
-
An antenna system made of three vertical antennas, arranged in a triangular shape (11% chose this)
-
An antenna made from several triangular coils of wire on an insulating form (6% chose this)
-
An antenna whose elements are each a three sided loop whose total length is approximately one electrical wavelength (75% chose this)
-
A large copper ring or wire loop, used in direction finding (9% chose this)
In a Yagi 3 element directional antenna, the ______________is not the longest nor the shortest radiating element.
-
director (13% chose this)
-
reflector (12% chose this)
-
driven element (70% chose this)
-
boom (6% chose this)
If two equal-value capacitors are connected in parallel, what is their capacitance?
-
The value of one capacitor times the value of the other (3% chose this)
-
Half the value of either capacitor (26% chose this)
-
Twice the value of either capacitor (63% chose this)
-
The same value of either capacitor (8% chose this)
The DC power input to the anode or collector circuit of the final RF stage of a transmitter, used by a holder of an Amateur Radio Operator Certificate with Advanced Qualification, shall not exceed:
-
1000 watts (69% chose this)
-
250 watts (17% chose this)
-
500 watts (7% chose this)
-
750 watts (6% chose this)
If you transmit from another amateur's station, who is responsible for its proper operation?
-
You (8% chose this)
-
The station owner, unless the station records show that you were the control operator at the time (12% chose this)
-
The station owner (10% chose this)
-
Both of you (69% chose this)
Who is responsible for the proper operation of an amateur station?
-
The person who owns the station equipment (3% chose this)
-
Only the control operator (7% chose this)
-
Both the control operator and the station owner (67% chose this)
-
Only the station owner who is the holder of an Amateur Radio Operator Certificate (22% chose this)
What is one meaning of the Q signal "QTH"?
-
Time here is (12% chose this)
-
My location is (77% chose this)
-
Stop sending (5% chose this)
-
My name is (6% chose this)
In a parallel circuit with a voltage source and several branch resistors, how is the total current related to the current in the branch resistors?
-
It equals the average of the branch current through each resistor (6% chose this)
-
It decreases as more parallel resistors are added to the circuit (15% chose this)
-
It is the sum of each resistor's voltage drop multiplied by the total number of resistors (12% chose this)
-
It equals the sum of the branch current through each resistor (67% chose this)
In a CW transmitter, the _________ is between the master oscillator and the power amplifier.
-
driver/buffer (67% chose this)
-
audio amplifier (8% chose this)
-
power supply (3% chose this)
-
telegraph key (21% chose this)
Which list of emission types is in order from the narrowest bandwidth to the widest bandwidth?
-
CW, FM voice, RTTY, SSB voice (6% chose this)
-
RTTY, CW, SSB voice, FM voice (8% chose this)
-
CW, RTTY, SSB voice, FM voice (71% chose this)
-
CW, SSB voice, RTTY, FM voice (15% chose this)
What is the proper distress call to use when operating phone?
-
Say "EMERGENCY" several times (10% chose this)
-
Say "HELP" several times (2% chose this)
-
Say "MAYDAY" several times (77% chose this)
-
Say "SOS" several times (11% chose this)
Why do modern HF transmitters have a built-in low pass filter in their RF output circuits?
-
To reduce RF energy below a cut-off point (9% chose this)
-
To reduce harmonic radiation (73% chose this)
-
To reduce fundamental radiation (1% chose this)
-
To reduce low frequency interference to other amateurs (17% chose this)
Which of the following statements is not correct? A person may operate radio apparatus, authorized in the amateur service:
-
except for the amplification of the output power of licence-exempt radio apparatus operating outside authorized amateur radio service allocations (17% chose this)
-
on aeronautical, marine or land mobile frequencies (65% chose this)
-
only where the person complies with the Standards for the Operation of Radio Stations in the Amateur Radio Service (12% chose this)
-
only where the apparatus is maintained within the performance standards set by Innovation, Science and Economic Development Canada regulations and policies (7% chose this)
What is one way to tell if radio frequency interference to a receiver is caused by front-end overload?
-
If connecting a low pass filter to the transmitter greatly cuts down the interference (9% chose this)
-
If the interference is about the same no matter what frequency is used for the transmitter (70% chose this)
-
If grounding the receiver makes the problem worse (4% chose this)
-
If connecting a low pass filter to the receiver greatly cuts down the interference (17% chose this)
Which of the following is not a scatter mode?
-
Forward scatter (5% chose this)
-
Inverted scatter (74% chose this)
-
Side scatter (11% chose this)
-
Back scatter (10% chose this)
What is a disadvantage of using an antenna equipped with traps?
-
It is too sharply directional at lower frequencies (10% chose this)
-
It must be neutralized (0% chose this)
-
It can only be used for one band (19% chose this)
-
It may radiate harmonics more readily (70% chose this)
What is an unbalanced line?
-
Transmission line with both conductors connected to each other (4% chose this)
-
Transmission line with one conductor connected to ground (68% chose this)
-
Transmission line with neither conductor connected to ground (24% chose this)
-
Transmission line with both conductors connected to ground (4% chose this)
Amateur radio operators may install or operate radio apparatus:
-
at the address which is on record at Innovation, Science and Economic Development Canada and at one other location (2% chose this)
-
at the address which is on record at Innovation, Science and Economic Development Canada and in two mobiles (8% chose this)
-
at any location in Canada (75% chose this)
-
only at the address which is on record at Innovation, Science and Economic Development Canada (16% chose this)
In a frequency modulation transmitter, the microphone is connected to the:
-
modulator (21% chose this)
-
power amplifier (3% chose this)
-
oscillator (3% chose this)
-
speech amplifier (73% chose this)
In a frequency modulation transmitter, the __________is located between the modulator and the frequency multiplier.
-
microphone (5% chose this)
-
oscillator (67% chose this)
-
speech amplifier (11% chose this)
-
power amplifier (16% chose this)
Why should local amateur communications use VHF and UHF frequencies instead of HF frequencies?
-
Because HF transmissions are not propagated locally (15% chose this)
-
Because signals are stronger on VHF and UHF frequencies (6% chose this)
-
To minimize interference on HF bands capable of long-distance communication (77% chose this)
-
Because greater output power is permitted on VHF and UHF (1% chose this)
What is the meaning of the procedural signal "DE"?
-
From (73% chose this)
-
Received all correctly (7% chose this)
-
Calling any station (5% chose this)
-
Directional Emissions (15% chose this)
In a frequency modulation receiver, the __________ connects to the audio frequency amplifier output.
-
limiter (9% chose this)
-
speaker or headphones (74% chose this)
-
intermediate frequency amplifier (6% chose this)
-
frequency discriminator (12% chose this)
If a parasitic element slightly shorter than a horizontal dipole antenna is placed parallel to the dipole 0.1 wavelength from it and at the same height, what effect will this have on the antenna's radiation pattern?
-
A major lobe will develop in the horizontal plane, from the dipole toward the parasitic element (70% chose this)
-
A major lobe will develop in the horizontal plane, parallel to the two elements (19% chose this)
-
A major lobe will develop in the vertical plane, away from the ground (7% chose this)
-
The radiation pattern will not be affected (4% chose this)
What is the purpose of a repeater time-out timer?
-
It tells how long someone has been using a repeater (5% chose this)
-
It interrupts lengthy transmissions without pauses (75% chose this)
-
It lets a repeater have a rest period after heavy use (16% chose this)
-
It logs repeater transmit time to predict when a repeater will fail (4% chose this)
What is the correct way to call "CQ" when using voice?
-
Say "CQ" at least ten times, followed by "this is," followed by your call sign spoken once (3% chose this)
-
Say "CQ" three times, followed by "this is," followed by your call sign spoken three times (80% chose this)
-
Say "CQ" once, followed by "this is," followed by your call sign spoken three times (13% chose this)
-
Say "CQ" at least five times, followed by "this is," followed by your call sign spoken once (4% chose this)
To reduce harmonic output from a high frequency transmitter, you would put a ____________ in the transmission line as close to the transmitter as possible.
-
wave trap (4% chose this)
-
low pass filter (70% chose this)
-
high pass filter (19% chose this)
-
band reject filter (6% chose this)
What is a cubical quad antenna?
-
A center-fed wire 1/2-electrical wavelength long (1% chose this)
-
A vertical conductor 1/4-electrical wavelength high, fed at the bottom (3% chose this)
-
Four straight, parallel elements in line with each other, each approximately 1/2-electrical wavelength long (25% chose this)
-
Two or more parallel four-sided wire loops, each approximately one-electrical wavelength long (71% chose this)
In an HF station, which component is temporarily connected in the tuning process or for adjustments to the transmitter?
-
Dummy load (75% chose this)
-
SWR bridge (5% chose this)
-
Low pass filter (3% chose this)
-
Antenna tuner (17% chose this)
What is the proper way to join into a conversation on a repeater?
-
Turn on an amplifier and override whoever is talking (0% chose this)
-
Say your call sign during a break between transmissions (76% chose this)
-
Wait for the end of a transmission and start calling the desired party (22% chose this)
-
Shout, "break, break!" to show that you're eager to join the conversation (2% chose this)
Which of the following components could be used as a dynamic microphone?
-
Loudspeaker (71% chose this)
-
Crystal earpiece (20% chose this)
-
Resistor (1% chose this)
-
Capacitor (8% chose this)
What is the meaning of the Q signal "QRS"?
-
Radio station location is: (9% chose this)
-
Send more slowly (75% chose this)
-
Interference from static (12% chose this)
-
Send "RST" report (4% chose this)
A Canadian radio amateur, operating his station 7 kilometres (4 miles) offshore from the coast of Florida, is subject to which frequency band limits?
-
Those applicable to Canadian radio amateurs (6% chose this)
-
ITU Region 1 (4% chose this)
-
ITU Region 2 (13% chose this)
-
Those applicable to US radio amateurs (77% chose this)
Skip zone is:
-
a zone between the antenna and the return of the first refracted wave (13% chose this)
-
a zone between the end of the ground wave and the point where the first refracted wave returns to Earth (71% chose this)
-
a zone of silence caused by lost sky waves (5% chose this)
-
a zone between any two refracted waves (10% chose this)
What is a CTCSS tone?
-
A special signal used for radio control of model craft (3% chose this)
-
A sub-audible tone that activates a receiver audio output when present (73% chose this)
-
A tone used by repeaters to mark the end of a transmission (17% chose this)
-
A special signal used for telemetry between amateur space stations and Earth stations (7% chose this)
Which two types of radiation from the sun influence propagation?
-
Electromagnetic and particle emissions (74% chose this)
-
Subaudible and audio-frequency emissions (3% chose this)
-
Polar region and equatorial emissions (4% chose this)
-
Infrared and gamma-ray emissions (19% chose this)
In a frequency modulation receiver, the output of the local oscillator is fed to the:
-
limiter (6% chose this)
-
antenna (4% chose this)
-
mixer (72% chose this)
-
radio frequency amplifier (18% chose this)
What is an azimuthal map?
-
A map projection centered on the North Pole (4% chose this)
-
A map that shows the angle at which an amateur satellite crosses the equator (7% chose this)
-
A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator (3% chose this)
-
A map projection centered on a particular location, used to determine the shortest path between points on the Earth's surface (86% chose this)
The characteristic impedance of a 20 metre piece of transmission line is 52 ohms. If 10 metres were cut off, the impedance would be:
-
13 ohms (2% chose this)
-
52 ohms (67% chose this)
-
26 ohms (28% chose this)
-
39 ohms (3% chose this)
Bipolar transistors usually have:
-
2 leads (26% chose this)
-
4 leads (5% chose this)
-
3 leads (67% chose this)
-
1 lead (2% chose this)
To convert AC to pulsating DC, you could use a:
-
resistor (2% chose this)
-
diode (70% chose this)
-
transformer (20% chose this)
-
capacitor (8% chose this)
If you made a half-wavelength dipole antenna for 28.150 MHz, how long would it be?
-
10.5 metres (34.37 ft) (12% chose this)
-
28.55 metres (93.45 ft) (3% chose this)
-
10.16 metres (33.26 ft) (15% chose this)
-
5.08 metres (16.62 ft) (70% chose this)
When using AMTOR transmissions, there are two modes that may be utilized. Mode A uses Automatic Repeat Request (ARQ) protocol and is normally used:
-
for communications after contact has been established (62% chose this)
-
at all times. Mode B is for test purposes only (16% chose this)
-
only when communications have been completed (7% chose this)
-
when making a general call (15% chose this)
If a neighbour reports television interference on one or two channels only when you transmit on 15 metres, what is probably the cause of the interference?
-
Too much low pass filtering on the transmitter (6% chose this)
-
Harmonic radiation from your transmitter (77% chose this)
-
De ionization of the ionosphere near your neighbour's TV antenna (2% chose this)
-
TV receiver front-end overload (15% chose this)
A horizontal dipole transmitting antenna, installed at an ideal height so that the ends are pointing North/South, radiates:
-
mostly to the East and West (74% chose this)
-
mostly to the South and North (14% chose this)
-
mostly to the South (1% chose this)
-
equally in all directions (11% chose this)
What type of filter might be connected to an amateur HF transmitter to cut down on harmonic radiation?
-
A high pass filter (24% chose this)
-
A CW filter (3% chose this)
-
A low pass filter (70% chose this)
-
A key-click filter (4% chose this)
Capacitive reactance:
-
applies only to series RLC circuits (3% chose this)
-
increases as frequency increases (28% chose this)
-
increases with the time constant (3% chose this)
-
decreases as frequency increases (66% chose this)
In order to install any radio apparatus, to be used specifically for an amateur radio club station, the radio amateur must hold an Amateur Radio Operator Certificate, with a minimum of the following qualifications:
-
Basic with Honours (5% chose this)
-
Basic and Advanced (69% chose this)
-
Basic, Advanced and Morse code (5% chose this)
-
Basic (22% chose this)
What does "connected" mean in an AX.25 packet-radio link?
-
A telephone link is working between two stations (15% chose this)
-
A message has reached an amateur station for local delivery (7% chose this)
-
A transmitting and receiving station are using a digipeater, so no other contacts can take place until they are finished (10% chose this)
-
A transmitting station is sending data to only one receiving station; it replies that the data is being received correctly (67% chose this)
What should be done if a properly operating amateur station is the cause of interference to a nearby telephone?
-
Make internal adjustments to the telephone equipment (3% chose this)
-
Install a modular plug-in telephone RFI filter close to the telephone device (79% chose this)
-
Ground and shield the local telephone distribution amplifier (12% chose this)
-
Stop transmitting whenever the telephone is in use (6% chose this)
What common connector usually joins a hand-held transceiver to its antenna?
-
A binding post connector (2% chose this)
-
An SMA connector (70% chose this)
-
A PL-259 connector (19% chose this)
-
An F-type cable connector (9% chose this)
Approximately how long is each side of a cubical quad antenna driven element for 14.3 MHz?
-
5.36 metres (17.6 feet) (76% chose this)
-
21.43 metres (70.3 feet) (7% chose this)
-
53.34 metres (175 feet) (2% chose this)
-
7.13 metres (23.4 feet) (15% chose this)
Which component can amplify a small signal but must use high voltages?
-
An electrolytic capacitor (4% chose this)
-
A multiple-cell battery (3% chose this)
-
A vacuum tube (74% chose this)
-
A transistor (19% chose this)
A band pass filter will:
-
attenuate high frequencies but not low (2% chose this)
-
pass frequencies each side of a band (20% chose this)
-
stop frequencies in a certain band (8% chose this)
-
allow only certain frequencies through (70% chose this)
How can you minimize the possibility of audio rectification of your transmitter's signals?
-
Use CW only (2% chose this)
-
Use a solid-state transmitter (5% chose this)
-
Ensure that all station equipment is properly grounded (74% chose this)
-
Install bypass capacitors on all power supply rectifiers (20% chose this)
When a transmitted radio signal reaches a station by a one-hop and two-hop skip path, small changes in the ionosphere can cause:
-
consistent fading of received signal (27% chose this)
-
consistently stronger signals (1% chose this)
-
a change in the ground-wave signal (2% chose this)
-
variations in signal strength (70% chose this)
How could you best keep unauthorized persons from using a mobile amateur station in your car?
-
Tune the radio to an unused frequency when you are done using it (2% chose this)
-
Turn the radio off when you are not using it (23% chose this)
-
Put a "Do not touch" sign on the radio (1% chose this)
-
Disconnect the microphone when you are not using it (74% chose this)
Amateur third party communications is:
-
a simultaneous communication between three operators (2% chose this)
-
none of these answers (18% chose this)
-
the transmission of non-commercial or personal messages to or on behalf of a third party (79% chose this)
-
the transmission of commercial or secret messages (1% chose this)
What problem may occur if your transmitter is operated without the cover and other shielding in place?
-
It may interfere with other stations operating near its frequency (21% chose this)
-
It may transmit a chirpy signal (3% chose this)
-
It may radiate spurious emissions (76% chose this)
-
It may transmit a weak signal (1% chose this)
Canada is located in ITU Region:
-
Region 1 (11% chose this)
-
Region 3 (3% chose this)
-
Region 4 (2% chose this)
-
Region 2 (83% chose this)
A parasitic oscillation:
-
does not cause any radio interference (1% chose this)
-
is produced in a transmitter oscillator stage (9% chose this)
-
is an unwanted signal developed in a transmitter (78% chose this)
-
is generated by parasitic elements of a Yagi beam (12% chose this)
If the length of coaxial transmission line is increased from 20 metres (66 ft) to 40 metres (132 ft), how would this affect the line loss?
-
It would be increased by 10% (15% chose this)
-
It would be reduced to 50% (10% chose this)
-
It would be increased by 100% (70% chose this)
-
It would be reduced by 10% (5% chose this)
If a signal-strength report is "10 dB over S9", what should the report be if the transmitter power is reduced from 1500 watts to 150 watts?
-
S9 plus 3 dB (8% chose this)
-
S9 minus 10 dB (21% chose this)
-
S9 plus 5 dB (6% chose this)
-
S9 (65% chose this)
In Canada, the 10 metre amateur band corresponds in frequency to:
-
24.890 to 24.990 MHz (7% chose this)
-
21.000 to 21.450 MHz (12% chose this)
-
50.000 to 54.000 MHz (3% chose this)
-
28.000 to 29.700 MHz (77% chose this)
What is the meaning of: "Your signal report is 5 7"?
-
Your signal is readable with considerable difficulty (5% chose this)
-
Your signal is perfectly readable with near pure tone (13% chose this)
-
Your signal is perfectly readable, but weak (5% chose this)
-
Your signal is perfectly readable and moderately strong (77% chose this)
In an single sideband transmitter, the ____________ is in between the mixer and the antenna.
-
balanced modulator (10% chose this)
-
radio frequency oscillator (12% chose this)
-
linear amplifier (70% chose this)
-
variable frequency oscillator (8% chose this)
Of the components in an HF station, which component would be used to match impedances between the transceiver and antenna?
-
Dummy load (8% chose this)
-
SWR bridge (17% chose this)
-
Antenna tuner (73% chose this)
-
Antenna switch (3% chose this)
What effect does tropospheric bending have on 2-metre radio waves?
-
It lets you contact stations farther away (79% chose this)
-
It causes them to travel shorter distances (13% chose this)
-
It garbles the signal (6% chose this)
-
It reverses the sideband of the signal (2% chose this)
What is the most useful type of map to use when orienting a directional HF antenna toward a distant station?
-
Topographical (8% chose this)
-
Azimuthal (82% chose this)
-
Mercator (1% chose this)
-
Polar projection (9% chose this)
If two equal-value capacitors are connected in parallel, what is their total capacitance?
-
The value of one capacitor times the value of the other (3% chose this)
-
Half the value of one capacitor (23% chose this)
-
Twice the value of one capacitor (68% chose this)
-
The same as the value of either capacitor (6% chose this)
Resistor wattage ratings are:
-
variable in steps of one hundred (2% chose this)
-
determined by heat dissipation qualities (68% chose this)
-
calculated according to physical size and tolerance rating (26% chose this)
-
expressed in joules (3% chose this)
What does maximum usable frequency mean?
-
The highest frequency signal that will reach its intended destination (78% chose this)
-
The lowest frequency signal that will reach its intended destination (8% chose this)
-
The highest frequency signal that is most absorbed by the ionosphere (10% chose this)
-
The lowest frequency signal that is most absorbed by the ionosphere (3% chose this)
A directional antenna pointed in the long-path direction to another station is generally oriented how many degrees from its short-path heading?
-
90 degrees (11% chose this)
-
270 degrees (2% chose this)
-
180 degrees (79% chose this)
-
45 degrees (9% chose this)
A coil and an air-spaced capacitor are arranged to form a resonant circuit. The resonant frequency will remain the same if we:
-
wind more turns on the coil (7% chose this)
-
add a resistor to the circuit (68% chose this)
-
increase the area of plates in the capacitor (9% chose this)
-
insert Mylar sheets between the plates of the capacitor (16% chose this)
Two or more strong out-of-band signals mix in your receiver to produce interference on a desired frequency. What is this called?
-
Front-end desensitization (9% chose this)
-
Intermodulation interference (81% chose this)
-
Receiver quieting (0% chose this)
-
Capture effect (10% chose this)
In what values are RF transmission line losses expressed?
-
Ohms per metre (16% chose this)
-
dB per unit length (69% chose this)
-
Ohms per MHz (4% chose this)
-
dB per MHz (11% chose this)
A person operating a Canadian amateur station is forbidden to communicate with amateur stations of another country:
-
until he has properly identified his station (13% chose this)
-
unless he is passing third-party traffic (0% chose this)
-
when that country has notified the International Telecommunication Union that it objects to such communications (83% chose this)
-
without written permission from Innovation, Science and Economic Development Canada (3% chose this)
In the amateur radio service, business communications:
-
are only permitted if they are for the safety of life or immediate protection of property (24% chose this)
-
are not prohibited by regulation (7% chose this)
-
are not permitted under any circumstance (68% chose this)
-
are permitted on some bands (1% chose this)
If an antenna is correctly matched to a transmitter, the length of transmission line:
-
must be a full wavelength long (10% chose this)
-
must be an odd number of quarter-wave (5% chose this)
-
must be an even number of half-waves (8% chose this)
-
will have no effect on the matching (77% chose this)
Two resistors are connected in parallel and are connected across a 40 volt battery. If each resistor is 1000 ohms, the total current is:
-
40 milliamperes (19% chose this)
-
80 amperes (11% chose this)
-
40 amperes (7% chose this)
-
80 milliamperes (64% chose this)
In an amateur digital radio system, the modem is connected to the ________.
-
input/output (18% chose this)
-
computer (71% chose this)
-
amplifier (8% chose this)
-
antenna (4% chose this)
In which International Telecommunication Union Region is Canada?
-
Region 3 (5% chose this)
-
Region 1 (7% chose this)
-
Region 2 (86% chose this)
-
Region 4 (3% chose this)
In a frequency modulation transmitter, the input to the speech amplifier is connected to the:
-
frequency multiplier (5% chose this)
-
microphone (74% chose this)
-
modulator (19% chose this)
-
power amplifier (2% chose this)
What are some reasons not to use parallel-conductor transmission line?
-
It does not work well when tied down to metal objects, and you should use a balun and may have to use an impedance-matching device with your transceiver (69% chose this)
-
You must use an impedance-matching device with your transceiver, and it does not work very well with a high SWR (15% chose this)
-
It does not work well when tied down to metal objects, and it cannot operate under high power (13% chose this)
-
It is difficult to make at home, and it does not work very well with a high SWR (4% chose this)
To set your station clock accurately to UTC, you could receive the most accurate time off the air from _______?
-
A non-directional beacon station (13% chose this)
-
Your local television station (2% chose this)
-
Your local radio station (7% chose this)
-
CHU, WWV or WWVH (79% chose this)
Which of these statements about the installation or modification of an antenna structure is not correct?
-
Innovation, Science and Economic Development Canada expects radio amateurs to address community concerns in a responsible manner (7% chose this)
-
Prior to an installation, for which community concerns could be raised, radio amateurs may be required to consult with their land-use authority (9% chose this)
-
A radio amateur may erect any size antenna structure without consulting neighbours or the local land-use authority (75% chose this)
-
A radio amateur must follow Innovation, Science and Economic Development Canada's antenna siting procedures. (9% chose this)
What is one disadvantage of a random wire antenna?
-
You must use an inverted T matching network for multi-band operation (8% chose this)
-
You may experience RF feedback in your station (74% chose this)
-
It usually produces vertically polarized radiation (7% chose this)
-
It must be longer than 1 wavelength (11% chose this)
What should you do for safety when operating at UHF and microwave frequencies?
-
Keep antenna away from your eyes when RF is applied (71% chose this)
-
Make sure that an RF leakage filter is installed at the antenna feed point (13% chose this)
-
Make sure the standing wave ratio is low before you conduct a test (12% chose this)
-
Never use a horizontally polarized antenna (3% chose this)
A balanced transmission line:
-
carries RF current on one wire only (13% chose this)
-
is made of one conductor only (6% chose this)
-
is made of two parallel wires (71% chose this)
-
has one conductor inside the other (10% chose this)
Which type of antenna would be a good choice as part of a portable HF amateur station that could be set up in case of an emergency?
-
A three-element Yagi (13% chose this)
-
A three-element quad (2% chose this)
-
A dipole (80% chose this)
-
A parabolic dish (4% chose this)
What common connector type usually joins RG-213 coaxial cable to an HF transceiver?
-
A banana plug connector (4% chose this)
-
A binding post connector (4% chose this)
-
A PL-259 connector (72% chose this)
-
An F-type cable connector (21% chose this)
Which of the following is defined in EMCAB-2 as "any device, machinery or equipment, other than radio apparatus, the use or functioning of which is, or can be, adversely affected by radiocommunication emissions"?
-
Broadcast receivers (13% chose this)
-
Radio-sensitive equipment (81% chose this)
-
Cable television converters (3% chose this)
-
Audio and video recorders (3% chose this)
If you are talking to a station using a repeater, how would you find out if you could communicate using simplex instead?
-
See if you can clearly receive the station on the repeater's input frequency (78% chose this)
-
See if a third station can clearly receive both of you (6% chose this)
-
See if you can clearly receive a more distant repeater (4% chose this)
-
See if you can clearly receive the station on a lower frequency band (12% chose this)
In a frequency modulation transmitter, the _________ is located between the frequency multiplier and the antenna.
-
oscillator (9% chose this)
-
power amplifier (74% chose this)
-
modulator (13% chose this)
-
speech amplifier (4% chose this)
Which component in an HF station is the most useful for determining the effectiveness of the antenna system?
-
SWR bridge (74% chose this)
-
Antenna switch (4% chose this)
-
Linear amplifier (3% chose this)
-
Dummy load (19% chose this)
Which of the following is not correct? The operator of an amateur station:
-
shall not cause harmful interference to a station in another service which has primary use of that band (17% chose this)
-
may conduct technical experiments using the station apparatus (4% chose this)
-
may make trials or tests, except if there is a possibility of interference to other stations (8% chose this)
-
may make trials or tests, even though there is a possibility of interfering with other stations (71% chose this)
When two 500 ohm 1 watt resistors are connected in series, the maximum total power that can be dissipated by the resistors is:
-
1 watt (26% chose this)
-
1/2 watt (6% chose this)
-
4 watts (3% chose this)
-
2 watts (66% chose this)
What kind of emission would your FM transmitter produce if its microphone failed to work?
-
A phase-modulated carrier (4% chose this)
-
An unmodulated carrier (74% chose this)
-
A frequency-modulated carrier (20% chose this)
-
An amplitude-modulated carrier (1% chose this)
What semiconductor device glows different colours, depending upon its chemical composition?
-
A vacuum diode (5% chose this)
-
A light-emitting diode (82% chose this)
-
A fluorescent bulb (3% chose this)
-
A neon bulb (10% chose this)
The voltage induced in a conductor moving in a magnetic field is at a maximum when the movement is:
-
made in a clockwise direction (3% chose this)
-
perpendicular to the lines of force (69% chose this)
-
made in a counter clockwise direction (3% chose this)
-
parallel to the lines of force (24% chose this)
In a vacuum tube, the electrode that emits electrons is the __________.
-
grid (5% chose this)
-
collector (4% chose this)
-
plate (19% chose this)
-
cathode (71% chose this)
What causes distant AM broadcast and 160 metre ham band stations not to be heard during daytime hours?
-
The presence of ionized clouds in the E region (9% chose this)
-
The splitting of the F region (14% chose this)
-
The weather below the ionosphere (6% chose this)
-
The ionization of the D region (71% chose this)
Three 15 microfarad capacitors are wired in series. The total capacitance of this arrangement is:
-
12 microfarads (2% chose this)
-
18 microfarads (3% chose this)
-
5 microfarads (67% chose this)
-
45 microfarads (28% chose this)
In a CW transmitter, the output of the _____________ is transferred to the antenna.
-
power supply (3% chose this)
-
master oscillator (11% chose this)
-
power amplifier (76% chose this)
-
driver/buffer (11% chose this)
In a CW transmitter, the ______________ is in between the driver/buffer stage and the antenna.
-
power amplifier (73% chose this)
-
power supply (5% chose this)
-
telegraph key (10% chose this)
-
master oscillator (13% chose this)
The result of the presence of standing waves on a transmission line is:
-
lack of radiation from the transmission line (6% chose this)
-
reduced transfer of RF energy to the antenna (72% chose this)
-
perfect impedance match between transmitter and transmission line (12% chose this)
-
maximum transfer of energy to the antenna from the transmitter (9% chose this)
In a single sideband and CW receiver, the __________ is connected to the output of the audio frequency amplifier.
-
radio frequency amplifier (6% chose this)
-
beat frequency oscillator (6% chose this)
-
speaker or headphones (74% chose this)
-
mixer (13% chose this)
In order to install any radio apparatus, to be used specifically for receiving and automatically retransmitting radiotelephone communications within the same frequency band, a radio amateur must hold an Amateur Radio Operator Certificate, with a minimum of:
-
Basic and Morse code qualifications (2% chose this)
-
Basic qualification (17% chose this)
-
Basic with Honours qualification (6% chose this)
-
Basic and Advanced qualifications (75% chose this)
The "Q signal" indicating that you want the other station to send slower is:
-
QRN (3% chose this)
-
QRS (81% chose this)
-
QRM (5% chose this)
-
QRL (11% chose this)
Why is a 5/8-wavelength vertical antenna better than a 1/4-wavelength vertical antenna for VHF or UHF mobile operations?
-
A 5/8-wavelength antenna is easier to install on a car (9% chose this)
-
A 5/8-wavelength antenna can handle more power (6% chose this)
-
A 5/8-wavelength antenna has more gain (78% chose this)
-
A 5/8-wavelength antenna has less corona loss (6% chose this)
In addition to complying with the Radiocommunication Act and Regulations, Canadian radio amateurs must also comply with the regulations of the:
-
International Telecommunication Union (86% chose this)
-
American Radio Relay League (1% chose this)
-
Radio Amateurs of Canada Inc. (7% chose this)
-
International Amateur Radio Union (7% chose this)
During a disaster, when may an amateur station make transmissions necessary to meet essential communication needs and assist relief operations?
-
Never: only official emergency stations may transmit in a disaster (14% chose this)
-
When normal communication systems are working but are not convenient (3% chose this)
-
Only when the local emergency net is activated (10% chose this)
-
When normal communication systems are overloaded, damaged or disrupted (73% chose this)
That portion of the radiation which is directly affected by the surface of the Earth is called:
-
inverted wave (0% chose this)
-
ground wave (78% chose this)
-
tropospheric wave (11% chose this)
-
ionospheric wave (10% chose this)
How do you call another station on a repeater if you know the station's call sign?
-
Say the station's call sign, then identify your own station (79% chose this)
-
Say "break, break 79," then say the station's call sign (0% chose this)
-
Say "CQ" three times, then say the station's call sign (20% chose this)
-
Wait for the station to call "CQ", then answer it (1% chose this)
If you made a half-wavelength vertical antenna for 223 MHz, how long would it be?
-
64 cm (25.2 in) (76% chose this)
-
128 cm (50.4 in) (8% chose this)
-
105 cm (41.3 in) (8% chose this)
-
134.6 cm (53 in) (8% chose this)
The total resistance of four 68 ohm resistors wired in parallel is:
-
17 ohms (67% chose this)
-
12 ohms (9% chose this)
-
34 ohms (7% chose this)
-
272 ohms (16% chose this)
When a signal is returned to Earth by the ionosphere, what is this called?
-
Ground-wave propagation (4% chose this)
-
Earth-Moon-Earth propagation (2% chose this)
-
Sky-wave propagation (79% chose this)
-
Tropospheric propagation (15% chose this)
In an amateur digital radio system, the modem function is often performed by the computer ____________.
-
serial port (19% chose this)
-
sound card (73% chose this)
-
keyboard (4% chose this)
-
scanner (4% chose this)
What does an antenna tuner do?
-
It matches a transceiver to a mismatched antenna system (81% chose this)
-
It helps a receiver automatically tune in stations that are far away (5% chose this)
-
It switches an antenna system to a transmitter when sending, and to a receiver when listening (7% chose this)
-
It switches a transceiver between different kinds of antennas connected to one transmission line (7% chose this)
The two basic types of bipolar transistors are:
-
diode and triode types (7% chose this)
-
varicap and Zener types (2% chose this)
-
P and N channel types (17% chose this)
-
NPN and PNP types (74% chose this)
The difference between DC input power and RF output power of a transmitter RF amplifier:
-
is due to oscillating (5% chose this)
-
radiates from the antenna (10% chose this)
-
appears as heat dissipation (72% chose this)
-
is lost in the transmission line (13% chose this)
In a regulated power supply, the _______________ is between the transformer and the filter.
-
output (2% chose this)
-
regulator (25% chose this)
-
rectifier (70% chose this)
-
input (3% chose this)
To replace a faulty 10 millihenry choke, you could use two:
-
5 millihenry chokes in series (66% chose this)
-
20 millihenry chokes in series (18% chose this)
-
30 millihenry chokes in parallel (1% chose this)
-
5 millihenry chokes in parallel (14% chose this)
What identification, if any, is required when two amateur stations begin communications?
-
Each station must transmit its own call sign (77% chose this)
-
No identification is required (1% chose this)
-
Both stations must transmit both call signs (19% chose this)
-
One of the stations must give both stations' call signs (3% chose this)
During summer daytime, which bands are the most difficult for communications beyond ground wave?
-
160 and 80 metres (79% chose this)
-
40 metres (3% chose this)
-
30 metres (2% chose this)
-
20 metres (15% chose this)
If the height of the reflecting layer of the ionosphere increases, the skip distance of a high frequency (HF) transmission:
-
stays the same (0% chose this)
-
varies regularly (2% chose this)
-
decreases (15% chose this)
-
becomes greater (83% chose this)
What is the antenna radiation pattern for an isotropic radiator?
-
A parabola (10% chose this)
-
A cardioid (4% chose this)
-
A unidirectional cardioid (7% chose this)
-
A sphere (79% chose this)
What factors determine the characteristic impedance of a coaxial antenna transmission line?
-
The diameter of the shield and the length of the line (11% chose this)
-
The diameter of the shield and the frequency of the signal (5% chose this)
-
The frequency of the signal and the length of the line (11% chose this)
-
The ratio of the diameter of the inner conductor to the diameter of the outer shield (72% chose this)
One important application for diodes is recovering information from transmitted signals. This is referred to as:
-
biasing (9% chose this)
-
demodulation (75% chose this)
-
regeneration (13% chose this)
-
ionization (2% chose this)
What circuit blocks RF energy above and below a certain limit?
-
A low pass filter (6% chose this)
-
A band pass filter (84% chose this)
-
A high pass filter (6% chose this)
-
An input filter (4% chose this)
How would you modulate a 2 meter FM transceiver to produce packet-radio emissions?
-
Connect a keyboard to the transceiver's microphone input (2% chose this)
-
Connect a DTMF key pad to the transceiver's microphone input (14% chose this)
-
Connect a terminal-node controller to the transceiver's microphone input (66% chose this)
-
Connect a terminal-node controller to interrupt the transceiver's carrier wave (18% chose this)
A dipole antenna will emit a vertically polarized wave if it is:
-
fed with the correct type of RF (1% chose this)
-
too near to the ground (4% chose this)
-
parallel with the ground (16% chose this)
-
mounted vertically (78% chose this)
The maximum percentage of modulation permitted in the use of radiotelephony by an amateur station is:
-
50 percent (10% chose this)
-
90 percent (7% chose this)
-
100 percent (77% chose this)
-
75 percent (6% chose this)
What is simplex operation?
-
Transmitting and receiving on the same frequency (82% chose this)
-
Transmitting and receiving over a wide area (1% chose this)
-
Transmitting on one frequency and receiving on another (6% chose this)
-
Transmitting one-way communications (11% chose this)
Compared with a horizontal antenna, a vertical antenna will receive a vertically polarized radio wave:
-
at weaker strength (12% chose this)
-
without any comparative difference (12% chose this)
-
if the antenna changes the polarization (3% chose this)
-
at greater strength (73% chose this)
What do many amateurs use to help form good Morse code characters?
-
An electronic keyer (78% chose this)
-
A key-operated on/off switch (8% chose this)
-
A notch filter (8% chose this)
-
A DTMF keypad (7% chose this)
When measuring the current drawn by a receiver from a power supply, the current meter should be placed:
-
in parallel with one of the receiver power leads (9% chose this)
-
in series with one of the receiver power leads (61% chose this)
-
in series with both receiver power leads (19% chose this)
-
in parallel with both receiver power supply leads (11% chose this)
A transformer has a 240 volt primary that draws a current of 250 milliamperes from the mains supply. Assuming no losses and only one secondary, what current would be available from the 12 volt secondary?
-
5 amperes (74% chose this)
-
215 amperes (4% chose this)
-
25 amperes (12% chose this)
-
50 amperes (10% chose this)
Why isn't frequency modulated (FM) phone used below 28.0 MHz?
-
The bandwidth would exceed limits in the Regulations (77% chose this)
-
The transmitter efficiency for this mode is low (10% chose this)
-
Harmonics could not be attenuated to practical levels (5% chose this)
-
The frequency stability would not be adequate (7% chose this)
One of the following is not considered to be communications on behalf of a third party, even though the message is originated by, or addressed to, a non-amateur:
-
messages addressed to points within Canada (4% chose this)
-
all messages received from Canadian stations (5% chose this)
-
messages originated from Canadian Forces Affiliate Radio Service (CFARS) (83% chose this)
-
messages that are handled within a local network (8% chose this)
The basic semiconductor amplifying device is the:
-
transistor (79% chose this)
-
tube (6% chose this)
-
P-N junction (5% chose this)
-
diode (11% chose this)
How many watts of electrical power are used by a 12 volt DC light bulb that draws 0.2 ampere?
-
60 watts (9% chose this)
-
24 watts (7% chose this)
-
6 watts (15% chose this)
-
2.4 watts (69% chose this)
How long is an average sunspot cycle?
-
5 years (5% chose this)
-
7 years (10% chose this)
-
11 years (82% chose this)
-
17 years (3% chose this)
Stereo speaker leads often act as antennas to pick up RF signals. What is one method you can use to minimize this effect?
-
Connect the speaker through an audio attenuator (12% chose this)
-
Connect a diode across the speaker (9% chose this)
-
Shorten the leads (77% chose this)
-
Lengthen the leads (2% chose this)
If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?
-
Increase the output power of your transmitter to overcome the interference (3% chose this)
-
Move your contact to another frequency (87% chose this)
-
Tell the interfering stations to change frequency, since you were there first (7% chose this)
-
Report the interference to your local Amateur Auxiliary Coordinator (3% chose this)
If ten resistors of equal value were wired in parallel, the total resistance would be:
-
10 + R (3% chose this)
-
R / 10 (67% chose this)
-
10 / R (16% chose this)
-
10 x R (14% chose this)
In a frequency modulation receiver, the _________ is located between the speaker or headphones and the frequency discriminator.
-
intermediate frequency amplifier (2% chose this)
-
radio frequency amplifier (6% chose this)
-
audio frequency amplifier (86% chose this)
-
limiter (6% chose this)
What is the meaning of: "Your signal report is 3 3 "?
-
Your signal is unreadable, very weak in strength (13% chose this)
-
The station is located at latitude 33 degrees (1% chose this)
-
The contact is serial number 33 (0% chose this)
-
Your signal is readable with considerable difficulty and weak in strength (85% chose this)
What organization has published safety guidelines for the maximum limits of RF energy near the human body?
-
Canadian Standards Association (9% chose this)
-
Environment Canada (6% chose this)
-
Transport Canada (2% chose this)
-
Health Canada (84% chose this)
What causes the maximum usable frequency to vary?
-
The type of weather just below the ionosphere (8% chose this)
-
The amount of radiation received from the sun, mainly ultraviolet (82% chose this)
-
The temperature of the ionosphere (10% chose this)
-
The speed of the winds in the upper atmosphere (1% chose this)
How can on-the-air interference be minimized during a lengthy transmitter testing or tuning procedure?
-
Choose an unoccupied frequency (9% chose this)
-
Use a non-resonant antenna (2% chose this)
-
Use a resonant antenna that requires no loading-up procedure (4% chose this)
-
Use a dummy load (84% chose this)
An amateur radio station in distress may:
-
only use radiocommunication bands for which the operator is qualified to use (12% chose this)
-
use any means of radiocommunication, but only on internationally recognized emergency channels (11% chose this)
-
only Morse code communications on internationally recognized emergency channels (1% chose this)
-
any means of radiocommunication (77% chose this)
In inductances, AC may be opposed by both resistance of winding wire and reactance due to inductive effect. The term which includes resistance and reactance is:
-
inductance (12% chose this)
-
capacitance (4% chose this)
-
impedance (73% chose this)
-
resonance (11% chose this)
What device can be used to minimize the effect of RF pickup by audio wires connected to stereo speakers, intercom amplifiers, telephones, etc.?
-
Attenuator (10% chose this)
-
Diode (5% chose this)
-
Ferrite core (82% chose this)
-
Magnet (3% chose this)
Losses occurring on a transmission line between transmitter and antenna results in:
-
an SWR reading of 1:1 (2% chose this)
-
reflections occurring in the line (14% chose this)
-
the wire radiating RF energy (14% chose this)
-
less RF power being radiated (70% chose this)
What is the minimum voltage which is usually dangerous to humans?
-
1000 volts (4% chose this)
-
2000 volts (2% chose this)
-
30 volts (76% chose this)
-
100 volts (18% chose this)
Two or more parts of the radio wave follow different paths during propagation and this may result in phase differences at the receiver. This "change" at the receiver is called:
-
absorption (4% chose this)
-
skip (10% chose this)
-
fading (79% chose this)
-
baffling (7% chose this)
The resistor that could dissipate the most heat would be marked:
-
2 ohms (3% chose this)
-
0.5 watt (2% chose this)
-
20 watts (68% chose this)
-
100 ohms (27% chose this)
How can you increase your transmitter's power by 6 dB?
-
Multiply the original power by 3 (17% chose this)
-
Multiply the original power by 2 (14% chose this)
-
Multiply the original power by 1.5 (3% chose this)
-
Multiply the original power by 4 (66% chose this)
What are "RST" signal reports?
-
A short way to describe signal reception (89% chose this)
-
A short way to describe transmitter power (6% chose this)
-
A short way to describe sunspot activity (2% chose this)
-
A short way to describe ionospheric conditions (3% chose this)
International third party amateur radio communication in case of emergencies or disaster relief is expressly permitted unless:
-
internet service is working well in the foreign country involved (2% chose this)
-
specifically prohibited by the foreign administration concerned (84% chose this)
-
satellite communication can be originated in the disaster area (2% chose this)
-
the foreign administration is in a declared state of war (12% chose this)
If you contact another station and your signal is extremely strong and perfectly readable, what adjustment should you make to your transmitter?
-
Continue with your contact, making no changes (18% chose this)
-
Turn down your power output to the minimum necessary (81% chose this)
-
Turn on your speech processor (0% chose this)
-
Reduce your SWR (1% chose this)
What is a good way to make contact on a repeater?
-
Say the other operator's name, then your call sign three times (4% chose this)
-
Say, "Breaker, breaker," (2% chose this)
-
Say the call sign of the station you want to contact three times (7% chose this)
-
Say the call sign of the station you want to contact, then your call sign (87% chose this)
An amateur radio station with a maximum input power to the final stage of 2 watts:
-
is exempt from regulatory control by Innovation, Science and Economic Development Canada (13% chose this)
-
must be operated by a person with an Amateur Certificate and call sign (73% chose this)
-
must be licensed by Innovation, Science and Economic Development Canada (12% chose this)
-
need not be licensed in isolated areas only (2% chose this)
In a frequency modulation transmitter, the power amplifier output is connected to the:
-
modulator (8% chose this)
-
antenna (82% chose this)
-
frequency multiplier (6% chose this)
-
microphone (3% chose this)
How are VHF signals propagated within the range of the visible horizon?
-
By plane wave (5% chose this)
-
By geometric wave (2% chose this)
-
By direct wave (79% chose this)
-
By sky wave (14% chose this)
What effect is responsible for propagating a VHF signal over 800 km (500 miles)?
-
Faraday rotation (4% chose this)
-
D-region absorption (9% chose this)
-
Moon bounce (EME) Earth - Moon - Earth (10% chose this)
-
Tropospheric ducting (77% chose this)
HF radio propagation cycles have a period of approximately 11:
-
centuries (2% chose this)
-
years (82% chose this)
-
months (3% chose this)
-
days (13% chose this)
What is the longest period of time an amateur station can transmit, without identifying by call sign?
-
10 minutes (16% chose this)
-
30 minutes (74% chose this)
-
20 minutes (2% chose this)
-
15 minutes (8% chose this)
How often must an amateur station be identified?
-
At the beginning and end of each transmission (6% chose this)
-
At least every thirty minutes, and at the beginning and at the end of a contact (77% chose this)
-
At the beginning of a contact and at least every thirty minutes after that (16% chose this)
-
At least once during each transmission (1% chose this)
Resonance is the condition that exists when:
-
resistance is equal to the reactance (23% chose this)
-
inductive reactance and capacitive reactance are equal and opposite in sign (73% chose this)
-
inductive reactance is the only opposition in the circuit (3% chose this)
-
the circuit contains no resistance (1% chose this)
At what speed should a Morse code "CQ" call be transmitted?
-
At any speed which you can reliably receive (80% chose this)
-
At any speed below 5 w.p.m. (12% chose this)
-
At the highest speed your keyer will operate (1% chose this)
-
At the highest speed at which you can control the keyer (7% chose this)
What may happen if an FM transmitter is operated with the microphone gain or deviation control set too high?
-
It may cause interference to other stations operating near its frequency (83% chose this)
-
It may cause digital interference to computer equipment (2% chose this)
-
It may cause atmospheric interference in the air around the antenna (3% chose this)
-
It may cause interference to other stations operating on a higher frequency band (12% chose this)
What precaution should you take when installing a ground-mounted antenna?
-
It should not be installed in a wet area (9% chose this)
-
It should not be installed higher than you can reach (2% chose this)
-
It should be installed so no one can come in contact with it (85% chose this)
-
It should be painted so people or animals do not accidentally run into it (4% chose this)
The ability of the ionosphere to reflect high frequency radio signals depends on:
-
upper atmosphere weather conditions (16% chose this)
-
the amount of solar radiation (79% chose this)
-
the power of the transmitted signal (4% chose this)
-
the receiver sensitivity (1% chose this)
If two receivers of different sensitivity are compared, the less sensitive receiver will produce:
-
a steady oscillator drift (3% chose this)
-
more than one signal (0% chose this)
-
more signal or less noise (14% chose this)
-
less signal or more noise (82% chose this)
When must an amateur station have a control operator?
-
A control operator is not needed (4% chose this)
-
Whenever the station receiver is operated (13% chose this)
-
Only when training another amateur (4% chose this)
-
Whenever the station is transmitting (79% chose this)
Approximately how long is each side of a cubical quad antenna driven element for 21.4 MHz?
-
3.54 metres (11.7 feet) (79% chose this)
-
0.36 metres (1.17 feet) (5% chose this)
-
14.33 metres (47 feet) (15% chose this)
-
143 metres (469 feet) (1% chose this)
The maximum percentage of modulation permitted in the use of radiotelephony by an amateur station is:
-
100 percent (78% chose this)
-
90 percent (6% chose this)
-
75 percent (6% chose this)
-
50 percent (10% chose this)
The control element in the field effect transistor is the:
-
source (8% chose this)
-
drain (3% chose this)
-
base (9% chose this)
-
gate (81% chose this)
Power-line voltages have been made standard over the years and the voltages generally supplied to homes are approximately:
-
130 and 260 volts (0% chose this)
-
120 and 240 volts (73% chose this)
-
110 and 220 volts (26% chose this)
-
100 and 200 volts (2% chose this)
What type of modulation system changes the amplitude of an RF wave for the purpose of conveying information?
-
Phase modulation (5% chose this)
-
Amplitude-rectification modulation (7% chose this)
-
Frequency modulation (13% chose this)
-
Amplitude modulation (76% chose this)
What does the term "antenna front-to-back ratio" mean in reference to a delta loop antenna?
-
The power radiated in the major radiation lobe compared to the power radiated 90 degrees away from that direction (7% chose this)
-
The number of directors versus the number of reflectors (3% chose this)
-
The power radiated in the major radiation lobe compared to the power radiated in exactly the opposite direction (83% chose this)
-
The relative position of the driven element with respect to the reflectors and directors (7% chose this)
Before transmitting, the first thing you should do is:
-
make an announcement on the frequency indicating that you intend to make a call (2% chose this)
-
decrease your receiver's volume (0% chose this)
-
listen carefully so as not to interrupt communications already in progress (91% chose this)
-
ask if the frequency is occupied (7% chose this)
In a regulated power supply, the _______________ is between the input and the rectifier.
-
regulator (15% chose this)
-
filter (14% chose this)
-
transformer (69% chose this)
-
output (2% chose this)
If you are communicating with another amateur station and hear a station in distress break in, what should you do?
-
Acknowledge the station in distress and determine its location and what assistance may be needed (84% chose this)
-
Continue your communication because you were on frequency first (0% chose this)
-
Change to a different frequency so the station in distress may have a clear channel to call for assistance (2% chose this)
-
Immediately cease all transmissions because stations in distress have emergency rights to the frequency (14% chose this)
What electromagnetic wave polarization does a Yagi antenna have when its elements are parallel to the Earth's surface?
-
Circular (3% chose this)
-
Horizontal (83% chose this)
-
Helical (2% chose this)
-
Vertical (12% chose this)
If the characteristic impedance of the transmission line does not match the antenna input impedance then:
-
the antenna will not radiate any signal (6% chose this)
-
standing waves are produced in the transmission line (76% chose this)
-
heat is produced at the junction (14% chose this)
-
the SWR reading falls to 1:1 (4% chose this)
In a field effect transistor, the ___________ is the terminal that controls the conductance of the channel.
-
collector (9% chose this)
-
gate (78% chose this)
-
drain (7% chose this)
-
source (6% chose this)
What is meant by receiver overload?
-
Interference caused by strong signals from a nearby transmitter (81% chose this)
-
Interference caused by turning the volume up too high (5% chose this)
-
Too much current from the power supply (8% chose this)
-
Too much voltage from the power supply (6% chose this)
If a signal-strength report is "20 dB over S9", what should the report be if the transmitter power is reduced from 1500 watts to 150 watts?
-
S9 (27% chose this)
-
S9 plus 10 dB (63% chose this)
-
S9 plus 5 dB (7% chose this)
-
S9 plus 3 dB (4% chose this)
If an antenna is made shorter, what happens to its resonant frequency?
-
It increases (76% chose this)
-
It stays the same (3% chose this)
-
It disappears (0% chose this)
-
It decreases (21% chose this)
Why is it a good idea to have a way to operate your amateur station without using commercial AC power lines?
-
So you may use your station while mobile (7% chose this)
-
So you may provide communications in an emergency (88% chose this)
-
So you will comply with rules (3% chose this)
-
So you may operate in contests where AC power is not allowed (2% chose this)
Where would you install a balun to feed a dipole antenna with 50-ohm coaxial cable?
-
Between the antenna and the ground (4% chose this)
-
Between the coaxial cable and the ground (2% chose this)
-
Between the coaxial cable and the antenna (78% chose this)
-
Between the transmitter and the coaxial cable (15% chose this)
What is the meaning of the term "73"?
-
Love and kisses (2% chose this)
-
Go ahead (9% chose this)
-
Best regards (85% chose this)
-
Long distance (5% chose this)
A semiconductor is described as a "general purpose audio NPN device". This would be:
-
a triode (7% chose this)
-
an audio detector (4% chose this)
-
a bipolar transistor (80% chose this)
-
a silicon diode (9% chose this)
What is the proper distress call to use when operating CW?
-
SOS (80% chose this)
-
CQD (2% chose this)
-
QRRR (1% chose this)
-
MAYDAY (17% chose this)
The fee for taking amateur radio certificate examinations at an Innovation, Science and Economic Development Canada office is:
-
$20 per visit, regardless of the number of qualification examinations (18% chose this)
-
no charge for qualification examinations (21% chose this)
-
$5 per qualification examination (8% chose this)
-
$20 per qualification (53% chose this)
The figure in a receiver's specifications which indicates its sensitivity is the:
-
audio output in watts (5% chose this)
-
bandwidth of the IF in kilohertz (11% chose this)
-
number of RF amplifiers (1% chose this)
-
RF input signal needed to achieve a given signal plus noise to noise ratio (83% chose this)
If you are the control operator at the station of another amateur who has additional qualifications to yours, what operating privileges are you allowed?
-
All the emission privileges of the additional qualifications, but only the frequency privileges of your qualifications (4% chose this)
-
All the frequency privileges of the additional qualifications, but only the emission privileges of your qualifications (2% chose this)
-
Only the privileges allowed by your qualifications (87% chose this)
-
Any privileges allowed by the additional qualifications (8% chose this)
What can you do if you are told your FM hand-held or mobile transceiver is overdeviating?
-
Talk farther away from the microphone (76% chose this)
-
Talk louder into the microphone (1% chose this)
-
Let the transceiver cool off (14% chose this)
-
Change to a higher power level (10% chose this)
When two 500 ohm 1 watt resistors are connected in parallel, they can dissipate a maximum total power of:
-
1 watt (11% chose this)
-
4 watts (3% chose this)
-
2 watts (73% chose this)
-
1/2 watt (14% chose this)
What causes splatter interference?
-
Keying a transmitter too fast (4% chose this)
-
Signals from a transmitter's output circuit are being sent back to its input circuit (15% chose this)
-
The transmitting antenna is the wrong length (3% chose this)
-
Overmodulating a transmitter (78% chose this)
Resonant circuits in a receiver are used to:
-
select signal frequencies (73% chose this)
-
filter direct current (8% chose this)
-
increase power (14% chose this)
-
adjust voltage levels (5% chose this)
What influences all radiocommunication beyond ground-wave or line-of-sight ranges?
-
The F2 region of the ionosphere (5% chose this)
-
The F1 region of the ionosphere (8% chose this)
-
Lunar tidal effects (2% chose this)
-
Solar radiation (85% chose this)
What is the purpose of the Safety Code 6?
-
It sets transmitter power limits for interference protection (3% chose this)
-
It sets antenna height limits for aircraft protection (2% chose this)
-
It gives RF exposure limits for the human body (88% chose this)
-
It lists all RF frequency allocations for interference protection (6% chose this)
In what emission type does the instantaneous amplitude (envelope) of the RF signal vary in accordance with the modulating audio?
-
Amplitude modulation (79% chose this)
-
Frequency modulation (10% chose this)
-
Pulse modulation (7% chose this)
-
Frequency shift keying (3% chose this)
The action of changing alternating current to direct current is called:
-
amplification (2% chose this)
-
transformation (16% chose this)
-
modulation (6% chose this)
-
rectification (76% chose this)
What name is given to a form of interference that seriously degrades, obstructs or repeatedly interrupts a radiocommunication service?
-
Intentional interference (3% chose this)
-
Adjacent interference (1% chose this)
-
Disruptive interference (21% chose this)
-
Harmful interference (74% chose this)
If two equal-value inductors are connected in series, what is their total inductance?
-
Half the value of one inductor (20% chose this)
-
The same as the value of either inductor (5% chose this)
-
The value of one inductor times the value of the other (6% chose this)
-
Twice the value of one inductor (69% chose this)
When a parallel coil-capacitor combination is supplied with AC of different frequencies, there will be one frequency where the impedance will be highest. This is the:
-
reactive frequency (8% chose this)
-
resonant frequency (76% chose this)
-
impedance frequency (11% chose this)
-
inductive frequency (5% chose this)
What is your responsibility as a station owner?
-
You are responsible for the proper operation of the station in accordance with the regulations (82% chose this)
-
You must allow another amateur to operate your station upon request (1% chose this)
-
You must be present whenever the station is operated (14% chose this)
-
You must notify Innovation, Science and Economic Development Canada if another amateur acts as the control operator (3% chose this)
What does the term "balun" mean?
-
Balanced antenna network (4% chose this)
-
Balanced to unbalanced (79% chose this)
-
Balanced unloader (8% chose this)
-
Balanced unmodulator (10% chose this)
In a single sideband and CW receiver, the antenna is connected to the ____________ .
-
radio frequency amplifier (80% chose this)
-
product detector (6% chose this)
-
local oscillator (8% chose this)
-
intermediate frequency amplifier (6% chose this)
How little electrical current flowing through the human body can be fatal?
-
Approximately 10 amperes (12% chose this)
-
More than 20 amperes (5% chose this)
-
Current flow through the human body is never fatal (1% chose this)
-
As little as 20 milliamperes (82% chose this)
You are transmitting FM on the 2 metre band. Several stations advise you that your transmission is loud and distorted. A quick check with a frequency counter tells you that the transmitter is on the proper frequency. Which of the following is the most probable cause of the distortion?
-
The power supply output voltage is low (11% chose this)
-
The repeater is reversing your sidebands (4% chose this)
-
The frequency counter is giving an incorrect reading and you are indeed off frequency (8% chose this)
-
The frequency deviation of your transmitter is set too high (77% chose this)
What does an SWR reading of less than 1.5:1 mean?
-
An antenna gain of 1.5 (5% chose this)
-
A fairly good impedance match (80% chose this)
-
An impedance match which is too low (4% chose this)
-
A serious impedance mismatch; something may be wrong with the antenna system (11% chose this)
A Canadian radio amateur, operating his station in the state of Florida, is subject to which frequency band limits?
-
ITU Region 1 (4% chose this)
-
Those applicable to US radio amateurs (85% chose this)
-
ITU Region 2 (11% chose this)
-
ITU Region 3 (1% chose this)
Which series combination of resistors would replace a single 120 ohm resistor?
-
Six 22 ohm (4% chose this)
-
Two 62 ohm (14% chose this)
-
Five 100 ohm (4% chose this)
-
Five 24 ohm (78% chose this)
How should you answer a voice CQ call?
-
Say the other station's call sign at least ten times, followed by "this is," then your call sign at least twice (1% chose this)
-
Say the other station's call sign once, followed by "this is," then your call sign given phonetically (86% chose this)
-
Say the other station's call sign at least five times phonetically, followed by "this is," then your call sign twice (2% chose this)
-
Say the other station's call sign at least three times, followed by "this is," and your call sign at least five times phonetically (11% chose this)
Three resistors, respectively rated at 10, 15 and 20 ohms are connected in parallel across a 6-volt battery. Which statement is true?
-
The voltage drop across each resistance added together equals 6 volts (15% chose this)
-
The voltage drop across the 20 ohm resistance is greater than the voltage across the 10 ohm resistance (9% chose this)
-
The current through the 10 ohms, 15 ohms and 20 ohms separate resistances, when added together, equals the total current drawn from the battery (70% chose this)
-
The current flowing through the 10 ohm resistance is less than that flowing through the 20 ohm resistance (7% chose this)
An SWR meter measures the degree of match between transmission line and antenna by:
-
comparing forward and reflected voltage (83% chose this)
-
measuring radiated RF energy (15% chose this)
-
measuring the conductor temperature (1% chose this)
-
inserting a diode in the transmission line (1% chose this)
If an antenna is made longer, what happens to its resonant frequency?
-
It stays the same (4% chose this)
-
It disappears (1% chose this)
-
It decreases (79% chose this)
-
It increases (17% chose this)
What language may you use when identifying your station?
-
Any language being used for a contact (8% chose this)
-
Any language being used for a contact, providing Canada has a third-party communications agreement with that country (10% chose this)
-
Any language of a country which is a member of the International Telecommunication Union (6% chose this)
-
English or French (76% chose this)
What is meant by harmonic radiation?
-
Signals which cause skip propagation to occur (1% chose this)
-
Unwanted signals at frequencies which are multiples of the fundamental (chosen) frequency (88% chose this)
-
Unwanted signals that are combined with a 60-Hz hum (2% chose this)
-
Unwanted signals caused by sympathetic vibrations from a nearby transmitter (9% chose this)
How can you prevent key-clicks?
-
By using a better power supply (13% chose this)
-
By sending CW more slowly (6% chose this)
-
By using a key-click filter (80% chose this)
-
By increasing power (2% chose this)
What is one way to shorten transmitter tune-up time on the air to cut down on interference?
-
Use twin lead instead of coaxial cable transmission lines (4% chose this)
-
Tune the transmitter into a dummy load (88% chose this)
-
Use a long wire antenna (1% chose this)
-
Tune up on 40 metres first, then switch to the desired band (7% chose this)
A resistor in a circuit becomes very hot and starts to burn. This is because the resistor is dissipating too much:
-
voltage (3% chose this)
-
resistance (5% chose this)
-
current (22% chose this)
-
power (70% chose this)