T4B01:

What may happen if a transmitter is operated with the microphone gain set too high?

1. The output power might be too high
2. The output signal might become distorted
3. The frequency might vary
4. The SWR might increase

T4B02:

Which of the following can be used to enter the operating frequency on a modern transceiver?

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

T4B03:

What is the purpose of the squelch control on a transceiver?

1. To set the highest level of volume desired
2. To set the transmitter power level
3. To adjust the automatic gain control
4. To mute receiver output noise when no signal is being received

T4B04:

What is a way to enable quick access to a favorite frequency on your transceiver?

1. Enable the CTCSS tones
2. Store the frequency in a memory channel
3. Disable the CTCSS tones
4. Use the scan mode to select the desired frequency

T4B05:

Which of the following would reduce ignition interference to a receiver?

1. Change frequency slightly
2. Decrease the squelch setting
3. Turn on the noise blanker
4. Use the RIT control

T4B06:

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

1. The AGC or limiter
2. The bandwidth selection
3. The tone squelch
4. The receiver RIT or clarifier

T4B07:

What does the term "RIT" mean?

1. Receiver Input Tone
2. Receiver Incremental Tuning
3. Rectifier Inverter Test
4. Remote Input Transmitter

T4B08:

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

1. Permits monitoring several modes at once
2. Permits noise or interference reduction by selecting a bandwidth matching the mode
3. Increases the number of frequencies that can be stored in memory
4. Increases the amount of offset between receive and transmit frequencies

T4B09:

Which of the following is an appropriate receive filter bandwidth for minimizing noise and interference for SSB reception?

1. 500 Hz
2. 1000 Hz
3. 2400 Hz
4. 5000 Hz

T4B10:

Which of the following is an appropriate receive filter bandwidth for minimizing noise and interference for CW reception?

1. 500 Hz
2. 1000 Hz
3. 2400 Hz
4. 5000 Hz

T4B11:

What is the function of automatic gain control, or AGC?

1. To keep received audio relatively constant
2. To protect an antenna from lightning
3. To eliminate RF on the station cabling
4. An asymmetric goniometer control used for antenna matching

T4B12:

Which of the following could be used to remove power line noise or ignition noise?

1. Squelch
2. Noise blanker
3. Notch filter
4. All of these choices are correct

T4B13:

Which of the following is a use for the scanning function of an FM transceiver?

1. To check incoming signal deviation
2. To prevent interference to nearby repeaters
3. To scan through a range of frequencies to check for activity
4. To check for messages left on a digital bulletin board