Common Transmitter and Receiver Problems

Question 1

Which of the following can cause radio frequency interference?

Answer 1

All of these choices are correct
(Fundamental overload
Harmonics
Spurious emissions)

Question 2

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?

Answer 2

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

Question 3

What should be the first step to resolve cable TV interference from your ham radio transmission?

Answer 3

Be sure all TV coaxial connectors are installed properly

Question 4

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

Answer 4

The receiver is unable to reject strong signals outside the AM or FM band

Question 5

How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Answer 5

Block the amateur signal with a filter at the antenna input of the affected receiver

Question 6

Which of the following can reduce overload to a VHF transceiver from a nearby FM broadcast station?

Answer 6

Band-reject filter

Question 7

Which of the following a way to reduce or eliminate interference from an amateur transmitter to a nearby telephone?

Answer 7

Put a RF filter on the telephone

Question 8

What is a Part 15 device?

Answer 8

An unlicensed device that may emit low-powered radio signals on frequencies used by a licensed service

Question 9

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

Answer 9

All of these choices are correct
(Work with your neighbor to identify the offending device
Politely inform your neighbor about the rules that prohibit the use of devices that cause interference
Check your station and make sure it meets the standards of good amateur practice)

Question 10

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

Answer 10

All of these choices are correct
(Your transmitter is slightly off frequency
Your batteries are running low
You are in a bad location)

Question 11

What is a symptom of RF feedback in a transmitter or transeiver?

Answer 11

Reports of garbled, distorted, or unintelligible voice transmissions

Question 12

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

Answer 12

Talk farther way from the microphone