7R-A-43: VHF: Controls, Volume, Squelch, DW and Scan
7R-43G1:
Adjusting the volume control has the following results:
Adjusting the volume control has no effect on the sensitivity.
The higher the volume control is set the greater the sensitivity.
The volume control sets the threshold for receiving signals.
None of the above
7R-43G2:
The Dual Watch (DW) function is used to:
Listening on any selected channel while periodically monitoring Ch-16.
Listen to Ch-70 at the same time while monitoring Ch-16.
Sequentially monitor 4 different channels.
None of the above
7R-43G3:
Setting the squelch control to just beyond the point where the background noise disappears results in:
Maximum sensitivity without background noise.
Reduced sensitivity without background noise.
Minimum background noise with reduced sensitivity.
Greater bandwidth without background noise.
7R-43G4:
The “Scan” function is used to:
Sequentially scan all or selected channels.
Monitor Ch-16 continuously and switching to either Ch-70 or Ch-13 every 5 seconds.
Scan Ch-70 for Distress Alerts.
None of the above
7R-43G5:
Setting the squelch control to the end of its range without any noise being heard results in:
Minimum sensitivity
Less background noise
Maximum sensitivity
Does not have any effect on the sensitivity.
7R-43G6:
Proper and legal VHF operations require:
Both answers a) and c) are correct
The channel must be designated as valid for the nature or type of communications desired.
The correct bandwidth must be selected by the operator.
The power level must be appropriately chosen.
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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