Furuno CH-37BB, Operator'S Manual

Page: 16 / 71

1. OPERATIONAL OVERVIEW
1-6
1.7 Adjusting Gain
Most equipment malfunctioning claims result from improper setting of switches and
controls. For example, fish, fish habitat or outcrop can not be readily detected by
merely increasing the gain. Initially set the gain between 3 and 5 with the GAIN control.
Then, fine tune depending on the fishing ground, frequency used, etc.
1.8 Menu Operation
1. Press the [MENU] key on the sub panel 2. The MENU window appears.
2. Move the cursor to the top column with [

] key.
3. Select the menu required with [

] or [

] key. The menu items change according
to the menu selected.
4. Select item with [

] or [

] keys. The selected item is highlighted and the current
setting is circumscribed.
5. Select value with [

] or [

] keys.
6. Press the [MENU] key again to turn off the menu.
Note: The TX rate is available in 10 levels, 1 to 10. Select “10“ for normal use.
Feeble
echoes
Random
noise
Surface noise
Interference
0
2
4 6
8
10
Turn GAIN control
clockwise
Turn on “IR” in SONAR
menu
Adjust NL control
0
2
4 6
8
10
Adjust TVG
control
0
2
4 6
8
10
Few fish found
or
difficalt to find
fish habitat
Clear Picture!
MENU :
TX RATE :
TX PULSE LENGTH :
TX OUTPUT POWER :
TX EXT SYNC :
IR :
STABILIZER :
COLOR :
RES. COLOR :
EXIT: PRESS MENU KEY
SONAR
10
LONG
A
OFF
OFF
OFF
16
LOG
㪙㪦㪫㪫㪦㪤㪆㪊㪛
㪪㪟㪦㪩㪫
㪙
㪦㪥
㪦㪥
㪦㪥
㪏
㪣㪠㪥㪜㪘㪩
㪛㪬㪘㪣 㪜㪆㪪
Cursor
Menu item
㪚㩷㩿㪤㪘㪯㪀
㪪㪨㪬㪘㪩㪜