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3. VERTICAL MODE
3.12.2
OTHERS menu description
COLOR: Select color arrangement to use. The setting range 1-4.
COLOR SETTING: Customizes colors on the vertical display. Operation is same
as that for the horizontal display. For further details see "COLOR SETTING..."
on page 2-48.
COLOR RESPONSE: Color response defines reflected echo strength versus
color level conversion. You can select one of four color response tables, and the
setting range is 1-4.
COLOR RESPONSE...: Adjusts reflected echo strength versus echo color level
for currently selected color response number. Operation is the same as that for
the horizontal display. For further details see "COLOR RESPONSE..." on page
2-48.
GAIN OFFSET: Adjusts gain level. If the front panel [GAIN] control does not
provide satisfactory gain adjustment, enter an offset here. The setting range is
0-12.
SIGNAL LEVEL: Dirty water or reflections from plankton may be painted on the
screen in green or light-blue. These echoes may be erased in order of strength.
Select the signal level to erase with the trackball and press the [MENU] key. The
setting range is 0-15.
FAR TVG CURVE: Selects the TVG curve to use. The smaller the number the
gentler the gain change over distance.
ABSORPTION COEFF: Attenuation of the acoustic pulse underwater varies with
sea area and water temperature. This menu item is provided to offset absorption,
however the default setting is suitable in most cases. If sensitivity decreases with
distance, increase the absorption coefficient setting. And if it increases with
distance decrease this setting.
3-18
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Troubleshooting
