What is the effect of excessive microphone gain on SSB transmissions?

1. A Frequency instability
2. B Distorted transmitted audio
3. C Increased SWR
4. D Sideband inversion

Which of the following can be used to enter a transceiver's operating frequency?

1. A The keypad or VFO knob
2. B The CTCSS or DTMF encoder
3. C The Automatic Frequency Control
4. D All these choices are correct

How is squelch adjusted so that a weak FM signal can be heard?

1. A Set the squelch threshold so that receiver output audio is on all the time
2. B Turn up the audio level until it overcomes the squelch threshold
3. C Turn on the anti-squelch function
4. D Enable squelch enhancement

What does an FM signal sound like when received slightly off frequency?

1. A The audio increases in pitch
2. B The audio decrease in pitch
3. C There is no effect except for reduction in amplitude
4. D The audio becomes distorted

What does the scanning function of an FM transceiver do?

1. A Checks incoming signal deviation
2. B Prevents interference to nearby repeaters
3. C Tunes through a range of frequencies to check for activity
4. D Tunes through a range of frequencies to determine the antenna's resonant frequency

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

1. A The AGC or limiter
2. B The bandwidth selection
3. C The tone squelch
4. D The RIT or Clarifier

What is a DMR "code plug"?

1. A An adapter cable used to connect a DMR radio to a computer for internet access
2. B Configuration data loaded onto your radio to access repeaters and talkgroups
3. C An upgrade to DMR programming software provided by the radio manufacturer to accommodate new radio models
4. D A Coder-Decoder (CODEC) that converts analog voice data to DMR digital data and vice versa

What is the advantage of having a choice of receiver filter bandwidths in a multimode transceiver?

1. A Permits monitoring several modes simultaneously by selecting a separate filter for each mode
2. B Permits noise or interference reduction by selecting a bandwidth matching the mode
3. C Increases the number of frequencies that can be stored in memory
4. D Increases the amount of offset between receive and transmit frequencies

How is a specific group of stations selected on a DMR digital voice transceiver?

1. A By retrieving the frequencies from transceiver memory
2. B By enabling the group's CTCSS tone
3. C By entering the group's identification code
4. D By inserting a five-pin, pre-programmed code plug

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

1. A 500 Hz
2. B 1000 Hz
3. C 2400 Hz
4. D 5000 Hz

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

1. A Your call sign
2. B Your output power
3. C The codec type being used
4. D All these choices are correct