Furuno CH-37 - Manual (Page 17)

2-1
SONAR MODE
2.1 Typical Operating Procedure
PWR
O TRANSDUCER
FULL
HALF
EVENT
ENTER
1 2 3
CUSTOM MODE
CH-37
R/B
MODE
TRAIN
SECTOR TILT
GAIN
RANGE
- +
0 10
LEVEL
0 10
TIME
0 10
DIMMER
0 10
BRILL
0 10
NL
0 10
AUDIO
TVG
HUE E/S
FAST
SCAN
TRACK V:H
RANGE
AUTO
TRAIN
DEGAUSS
BOTTOM MODE
MENU
MENU
0
2
4 6
8
10
Turn on the display unit.
Lower the transducer.
Adjust the brilliance of the CRT.
1
1
2
3
Select the range desired with the RANGE control.
4
5
6
Adjust the tilt angle with the TILT control. See page 2-3 through 2-5
for details. 7
Adjust the GAIN and TVG controls.
[Gain: 3-5, TVG (level & time): 3-5] 8
8
3
Adjust the NL control if a large number of small blue dots appear on
the screen. Normally set it between 2 and 4. 9
8
Set the MODE knob to or position.
Select the automatic training area and center position with the SEC-
TOR and TRAIN controls. The FULL/HALF key provides a quick
change of the area (225
°
360
°
).
With the trackball marker, measure the distance to a fish school or
the bottom. 10
10
Reduce the output power if necessary. Normally, set it for maximum
position (C).
Turn off "FAST SCAN" mode if longer detection is required. 12
11
12
4
2
Figure 2-1 Main panel and sub panel controls