Furuno CSH-5LMARK-2, Installation Manual

Page: 53 / 86

3. ADJUSTMENTS
3-7
5. Adjust R142 so that noises disappear on the echo sounder display.
6. On the SOUNDER MENU, set the GAIN to 10, and then set the CLUTTER to 10.
7. Adjust R142 so that noises disappear on the echo sounder display.
3.7 Sea Trial
3.7.1 Cruising noise check
Check and record the cruising noise displayed on the screen. Do this with the trans-
mitter turned off and the ship anchored, and also with the ship running at the speed
normally used while the sonar is in use.
3.7.2 Recording proper setting at sea trial
Record the suitable settings of controls and switches and take a photograph of the so-
nar picture as reference for later service.
0 kn
800 m
5.0
N 5 F 5
0
°
800 m
5.0
N 5 F 5
0
°
Ship anchored
Ship at cruising speed
NL
RANGE
GAIN
TVG
TILT
DEPTH
NL
RANGE
GAIN
TVG
TILT
DEPTH
ENG RPM
SPEED
SEA CONDITION
ENG RPM
SPEED
SEA CONDITION
N F
PHOTOGRAPH
RANGE
TILT
TVG
GAIN
OUTPUT
TX PULSELENGTH
NOISE LIMITER
AGC
VP
INTERFERENCE REJ