Checkpoint: T7B — HAM Trainer

T7B01 What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

A Talk louder into the microphone B Let the transceiver cool off C Change to a higher power level D Talk farther away from the microphone

T7B02 What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

A The receiver is unable to reject strong signals outside the AM or FM band B The microphone gain of the transmitter is turned up too high C The audio amplifier of the transmitter is overloaded D The deviation of an FM transmitter is set too low

T7B03 Which of the following can cause radio frequency interference?

A Fundamental overload B Harmonics C Spurious emissions D All these choices are correct

T7B04 Which of the following might be the cause of low RF power output from a solid-state transceiver?

A Poor amplifier noise figure B Poor amplifier linearity C Low SWR D High SWR

T7B05 Which of the following might reduce interference by an amateur station to a non-amateur over-the-air radio receiver?

A Block the amateur signal with a filter at the antenna input of the affected receiver B Block the interfering signal with a filter on the amateur transmitter C Switch the transmitter from FM to SSB D Switch the transmitter to a narrow-band mode

T7B06 Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

A Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel B Immediately turn off your transmitter and contact the nearest FCC office for assistance C Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated D All these choices are correct

T7B07 Which of the following can reduce interference to a 2-meter band transceiver from a nearby commercial FM station?

A Installing an RF preamplifier B Using double-shielded coaxial cable C Installing bypass capacitors on the microphone cable D Installing a band-reject filter

T7B08 What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

A Work with your neighbor to identify the offending device B Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference C Make sure your station meets the standards of good amateur practice D All these choices are correct

T7B09 What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

A Add a low-pass filter to the TV antenna input B Add a high-pass filter to the TV antenna input C Add a preamplifier to the TV antenna input D Be sure all TV feed line coaxial connectors are installed properly

T7B10 What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

A Your transmitter is slightly off frequency B You are speaking too loudly or too close to the microphone C You are in a bad location D All these choices are correct

T7B11 Which of the following can eliminate distorted voice transmissions?

A Adding extra feedline to the antenna to lower SWR B Turning the radio on and off to reset the computer-controlled circuitry C Adding a clip-on ferrite "choke" to the microphone cable to prevent the transmitted signal from feeding back into the transmitter D Turning the squelch control fully clockwise to prevent the transmitted signal from triggering the squelch circuit