Furuno CH-500, Operator'S Manual

Page: 56 / 109

2. HORIZONTAL MODE
2-18
5. Press
X
or
W
to adjust the TVG level. Ideally, a setting between 2.0 and 5.0
should be sufficient. A larger setting reduces the gain over distance.
As the setting is adjusted, the current setting is shown in a dashed line and the
level indication changes to show the new setting.
6. Press
T
to select [TVG Distance] ([TVG Distance-LF]/[TVG Distance-HF] on CH-
600), then press
X
to show the [TVG Distance] settings.
7. Press
X
or
W
to adjust the TVG level.
Ideally a setting between 3.0 and 5.0 (130 m to 320 m) is sufficient.
As the setting is adjusted, the current setting is shown in a dashed line and the
level indication changes to show the new setting.
Current setting
New setting
TVG Level
indication
changes to
show the
new setting.
200m
TVG Level
Gain
Hi
Lo
4. 0
200m
TVG Distance
Gain
Hi
Lo
4. 0
Current setting
New setting
Indications for
distance setting
and actual distance
change to show the
new setting.
320m
Gain
Hi
Lo
6. 0 TVG Distance