T4B - Amateur radio practices and station set up
Technician Class
Operating controls: frequency tuning, use of filters, squelch function, AGC, memory channels, noise blanker, microphone gain, receiver incremental tuning (RIT), bandwidth selection, digital transceiver configuration
11 questions | Updated: Feb 19, 2026
What is the effect of excessive microphone gain on SSB transmissions?
Which of the following can be used to enter a transceiver’s operating frequency?
How is squelch adjusted so that a weak FM signal can be heard?
What does an FM signal sound like when received slightly off frequency?
What does the scanning function of an FM transceiver do?
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?
What is a DMR “code plug”?
What is the advantage of having a choice of receiver filter bandwidths in a multimode transceiver?
How is a specific group of stations selected on a DMR digital voice transceiver?
Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?
Which of the following must be programmed into a D-STAR digital transceiver before transmitting?