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3.3 Sea Trial
Cruising noise check
Check and record the cruising noise level displayed on the screen with the transmitter turned
off and also the ship's speed at which the sonar is to be used.
Ship anchored
Ship at cruising speed
Recording optimum control settings
Record optimum control and switch settings and take a photograph of the sonar picture as
reference for later service.
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PHOTOGRAPH
NL
RANGE
800 m
GAIN
5.0
N ∞
F ∞
TVG
TILT
0°
DEPTH
NL
RANGE
800 m
GAIN
5.0
N ∞
F ∞
TVG
TILT
0°
DEPTH
RANGE
TILT
TVG
GAIN
OUTPUT
TX PULSELENGTH
NOISE LIMITER
AGC
VP
INTERFERENCE REJ
3-4
ENG RPM
SPEED
0
KTS
SEA CONDITION
ENG RPM
SPEED
SEA CONDITION
N
F
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