FCC EXAM 2 | QUESTIONS AND ANSWERS |
2025/2026 UPDATE | WITH COMPLETE SOLUTION!!
Define Operator Answer - Person in control of the transmitter Daily
Why should a transmitter be off air when messages are not being sent? Answer
- reduce interference
What are the locations that an operator may be on duty? Answer - Remote
control site, transmitter site, automatic transmission system
If an unattended station which employs an ATS experiences an out of tolerance
condition, it must automatically exercise one of two options. What are those
options? Answer - Notify Chief engineer, take off air within 3 hours
What must some AM stations do to reduce skywave interference? Answer -
sign off to reduce power
Who is responsible for instructing the operators in performance of duties?
Answer - the licensee
What are the manual controls on the audio signal? Answer - channel gains
(pots)
, what does the VU meter measure Answer - average audio levels
What can the VU meter not be used to measure Answer - modulation
what measure modulation? Answer - modulation monitor
Whats are the two purposes of automatic gain controls? Answer - raise
average audio levels and limit audio peaks
what determines the average level of modulation? Answer - Average audio
level
What causes a modulation peak? Answer - audio peak
The average level of modulation could reasonably be expected to range
between what percentages of modulation? Answer - at least 85%
What is over modulation? How can it be corrected Answer - Limits exceeded,
turn audio down
What can over modulation do to other stations? Answer - interference
What determine's bot a station's area of coverage and the distance at which
one station causes interference to another? Answer - power
what are the authorized limits of operating power? Answer - 90%-105%
2025/2026 UPDATE | WITH COMPLETE SOLUTION!!
Define Operator Answer - Person in control of the transmitter Daily
Why should a transmitter be off air when messages are not being sent? Answer
- reduce interference
What are the locations that an operator may be on duty? Answer - Remote
control site, transmitter site, automatic transmission system
If an unattended station which employs an ATS experiences an out of tolerance
condition, it must automatically exercise one of two options. What are those
options? Answer - Notify Chief engineer, take off air within 3 hours
What must some AM stations do to reduce skywave interference? Answer -
sign off to reduce power
Who is responsible for instructing the operators in performance of duties?
Answer - the licensee
What are the manual controls on the audio signal? Answer - channel gains
(pots)
, what does the VU meter measure Answer - average audio levels
What can the VU meter not be used to measure Answer - modulation
what measure modulation? Answer - modulation monitor
Whats are the two purposes of automatic gain controls? Answer - raise
average audio levels and limit audio peaks
what determines the average level of modulation? Answer - Average audio
level
What causes a modulation peak? Answer - audio peak
The average level of modulation could reasonably be expected to range
between what percentages of modulation? Answer - at least 85%
What is over modulation? How can it be corrected Answer - Limits exceeded,
turn audio down
What can over modulation do to other stations? Answer - interference
What determine's bot a station's area of coverage and the distance at which
one station causes interference to another? Answer - power
what are the authorized limits of operating power? Answer - 90%-105%
