TM 11-5840-281-12-1
2-6. SEARCH OPERATION. (CONT)
VIDEO CLUTTER (CONT)
1.
View A exhibits a typical display of heavy video clutter that may exist on the crt display when FTC switch is in
OFF position and TRANSMITTER switch is in WIDE PLS position. The clutter could obscure return signal from
target being tracked.
2.
View B exhibits clutter being reduced after placing FTC switch to LIN position and TRANSMITTER switch to NAR
PLS position. When FTC switch is in LIN position, receiver if signal is amplified linearly
3.
View C exhibits clutter being further reduced after placing FTC switch to LOG position and TRANSMITTER
switch remaining in NAR PLS position. When FTC switch is in LOG position, receiver if signal Is amplified
logarithmically. LOG FTC is used to reduce return clutter (noise) from precipitation.
REDUCING VIDEO CLUTTER FROM GROUND RETURNS AND PRECIPITATION
2-24
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