Furuno CH-37 - Manual (Page 12)

1-2
Sub panel
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
Sub-panel 1
Sub-panel 2
Function Description
TVG LEVEL controls the receiver sensitivity
to eliminate surface noise, which may
mask shallow targets. TIME determines
the TVG effective range.
NL Rejects noise which appears on the
screen in light blue or blue. A setting
between 2 and 4 will suffice in most
cases.
AUDIO Adjusts the volume of the external loud-
speaker, which monitors target echoes.
DIMMER Adjusts panel backlighting.
BRILL Adjusts screen brilliance.
Function Description
HUE Changes the background color of the
display in the sequence of deep blue,
blue, black.
E/S Turns the E/S combination display
on/off. (Optional devices required.)
DEGAUSS The screen is automatically degaussed
at the interval selected on the system
setting menu. To manually degauss the
screen press this key.
FAST SCAN Changes the sector steps (45
°
/6
°
in
sonar mode and 6
°
/3
°
in vertical fan
mode).
TRACK Turns the course line plotting on/off.
(Navigation equipment required.)
V:H RANGE Changes the horizontal range scale in
the vertical fan mode.
AUTO TRAIN Changes the auto and manual train in
the vertical fan mode.
MENU Displays the menu screen of the mode
in use.
Figure 1-2 Sub panel 1 and sub panel 2