Ham Radio T4 - Amateur Radio Practice (15 ques)

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

• The AGC or limiter
• The bandwidth selection
• The tone squelch
• The receiver RIT or clarifier

Tags

NGSS.HS-PS4-5

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

• Enable the CTCSS tones
• Store the frequency in a memory channel
• Disable the CTCSS tones
• Use the scan mode to select the desired frequency

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

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

Where should the negative return connection of a mobile transceiver's power cable be connected?

• At the battery or engine block ground strap
• At the antenna mount
• To any metal part of the vehicle
• Through the transceiver’s mounting bracket

What is the proper location for an external SWR meter?

• In series with the feed line, between the transmitter and antenna
• In series with the station's ground
• In parallel with the push-to-talk line and the antenna
• In series with the power supply cable, as close as possible to the radio

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

• The keypad or VFO knob
• The CTCSS or DTMF encoder
• The Automatic Frequency Control
• All of these choices are correct

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

• Change frequency slightly
• Decrease the squelch setting
• Turn on the noise blanker
• Use the RIT control

Tags

NGSS.HS-PS4-5

Which of the following conductors provides the lowest impedance to RF signals?

• Round stranded wire
• Round copper-clad steel wire
• Twisted-pair cable
• Flat strap

Tags

NGSS.HS-PS4-5

How might a computer be used as part of an amateur radio station?

• For logging contacts and contact information
• For sending and/or receiving CW
• For generating and decoding digital signals
• All of these choices are correct

Tags

NGSS.HS-PS4-5

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

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