8-C-25: Sea Clutter - STC
8-25C1:
The STC circuit is used to:
Decrease sea return on a RADAR receiver.
Increase receiver stability.
Increase receiver sensitivity.
Increase receiver selectivity.
8-25C2:
The STC circuit:
Decreases sea return on the PPI scope.
Increases the sensitivity of the receiver for close targets.
Helps to increase the bearing resolution of targets.
Increases sea return on the PPI scope.
8-25C3:
Sea return is:
The reflection of RADAR signals from nearby waves.
Sea water that gets into the antenna system.
The return echo from a target at sea.
None of the above.
8-25C4:
Sea clutter on the RADAR scope cannot be effectively reduced using front panel controls. What circuit would you suspect is faulty?
Sensitivity Time Control (STC) circuit.
False Target Eliminator (FTE) circuit.
Fast Time Constant (FTC) circuit.
Intermediate Frequency (IF) circuit.
8-25C5:
What circuit controls the suppression of sea clutter?
STC circuit.
EBL circuit.
Local oscillator.
Audio amplifier.
8-25C6:
The sensitivity time control (STC) circuit:
Decreases the sensitivity of the receiver for close objects.
Increases the sensitivity of the receiver for close objects.
Increases the sensitivity of the receiver for distant objects.
Decreases the sensitivity of the transmitter for close objects.
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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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