Canadian Basic pool, section 3-15

Basic

This is an old (expired) question pool. Click here to go to the current version

Subelement 3

Station Assembly, Practice and Safety

Section 3-15

digital mode fundamentals (RTTY, ASCII, AMTOR, packet)

3-15-01

What does "connected" mean in a packet-radio link?

A.
A telephone link is working between two stations
B.
A message has reached an amateur station for local delivery
C.
A transmitting and receiving station are using a digipeater, so no other contacts can take place until they are finished
Correct Answer
D.
A transmitting station is sending data to only one receiving station; it replies that the data is being received correctly

3-15-01

This question does not yet have an explanation! Register to add one

Tags: none

3-15-02

What does "monitoring" mean on a packet-radio frequency?

A.
A member of the Amateur Auxiliary is copying all messages
Correct Answer
B.
A receiving station is displaying messages that may not be sent to it, and is not replying to any message
C.
A receiving station is displaying all messages sent to it, and replying that the messages are being received correctly
D.
Industry Canada is monitoring all messages

3-15-02

This question does not yet have an explanation! Register to add one

Tags: none

3-15-03

What is a digipeater?

A.
A repeater built using only digital electronics parts
B.
A repeater that changes audio signals to digital data
Correct Answer
C.
A packet-radio station that retransmits only data that is marked to be retransmitted
D.
A packet-radio station that retransmits any data that it receives

3-15-03

This question does not yet have an explanation! Register to add one

Tags: none

3-15-04

What does "network" mean in packet radio?

Correct Answer
A.
A way of connecting packet-radio stations so data can be sent over long distances
B.
A way of connecting terminal-node controllers by telephone so data can be sent over long distances
C.
The connections on terminal-node controllers
D.
The programming in a terminal-node controller that rejects other callers if a station is already connected

3-15-04

This question does not yet have an explanation! Register to add one

Tags: none

3-15-05

In packet-radio operation, what equipment connects to a terminal-node controller?

A.
A transceiver and a modem
B.
A DTMF keypad, a monitor and a transceiver
C.
A DTMF microphone, a monitor and a transceiver
Correct Answer
D.
A transceiver and a terminal or computer system

3-15-05

This question does not yet have an explanation! Register to add one

Tags: none

3-15-06

How would you modulate a 2 meter FM transceiver to produce packet-radio emissions?

Correct Answer
A.
Connect a terminal-node controller to the transceiver's microphone input
B.
Connect a terminal-node controller to interrupt the transceiver's carrier wave
C.
Connect a keyboard to the transceiver's microphone input
D.
Connect a DTMF key pad to the transceiver's microphone input

3-15-06

This question does not yet have an explanation! Register to add one

Tags: none

3-15-07

When selecting a RTTY transmitting frequency, what minimum frequency separation from a contact in progress should you allow (center to center) to minimize interference?

A.
Approximately 6 kHz
B.
Approximately 3 kHz
Correct Answer
C.
250 to 500 Hz
D.
60 Hz

3-15-07

This question does not yet have an explanation! Register to add one

Tags: none

3-15-08

Digital transmissions use signals called _______ to transmit the states 1 and 0.

A.
packet and AMTOR
B.
baudot and ASCII
Correct Answer
C.
mark and space
D.
dot and dash

3-15-08

This question does not yet have an explanation! Register to add one

Tags: none

3-15-09

Which of the following terms does not apply to packet?

A.
ASCII
Correct Answer
B.
Baudot
C.
Terminal-Node Controller (TNC)
D.
AX.25

3-15-09

This question does not yet have an explanation! Register to add one

Tags: none

3-15-10

When using AMTOR transmissions, there are two modes that may be utilized. Mode A uses Automatic Repeat Request (ARQ) protocol and is normally used:

A.
at all times. Mode B is for test purposes only
B.
only when communications have been completed
Correct Answer
C.
for communications after contact has been established
D.
when making a general call

3-15-10

This question does not yet have an explanation! Register to add one

Tags: none

3-15-11

What is the most common data rate used for VHF packet communications?

A.
300 baud
B.
9600 baud
C.
2400 baud
Correct Answer
D.
1200 baud

3-15-11

This question does not yet have an explanation! Register to add one

Tags: none

Log in

- or -

- or -