Station Assembly, Practice and Safety
station accessories for telegraphy, radiotelephony, digital modes
What do many amateurs use to help form good Morse code characters?
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Correct AnswerAn electronic keyer
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A key-operated on/off switch
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A notch filter
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A DTMF keypad
Tags: none
Where would you connect a microphone for voice operation?
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Correct AnswerTo a transceiver
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To a power supply
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To an antenna switch
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To an antenna
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What would you connect to a transceiver for voice operation?
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A receiver audio filter
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A terminal-voice controller
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Correct AnswerA microphone
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A splatter filter
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Why might a dummy antenna get warm when in use?
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Because it absorbs static electricity
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Because it stores radio waves
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Correct AnswerBecause it changes RF energy into heat
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Because it stores electric current
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What is the circuit called which causes a transmitter to automatically transmit when an operator speaks into its microphone?
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VXO
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VCO
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VFO
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Correct AnswerVOX
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What is the reason for using a properly adjusted speech processor with a singlesideband phone transmitter?
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Correct AnswerIt improves signal intelligibility at the receiver
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It reduces average transmitter power requirements
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It reduces unwanted noise pickup from the microphone
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It improves voice frequency fidelity
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If a single-sideband phone transmitter is 100% modulated, what will a speech processor do to the transmitter's power?
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Correct AnswerIt will add nothing to the output PEP
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It will increase the output PEP
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It will decrease the peak power output
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It will decrease the average power output
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When switching from receive to transmit:
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Correct Answerthe receiver should be muted
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the transmit oscillator should be turned off
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the receiving antenna should be connected
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the power supply should be off
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A switching system to enable the use of one antenna for a transmitter and receiver should also:
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ground the antenna on receive
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Correct Answerdisable the unit not being used
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switch between meters
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disconnect the antenna tuner
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An antenna changeover switch in a transmitter-receiver combination is necessary:
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Correct Answerso that one antenna can be used for transmitter and receiver
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to change antennas for operation on other frequencies
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to prevent RF currents entering the receiver circuits
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to allow more than one transmitter to be used
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Which of the following components could be used as a dynamic microphone?
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crystal earpiece
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resistor
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Correct Answerloudspeaker
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capacitor
Tags: none
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