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GPSMAP 3206/3210 Owner’s Manual
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Using the Radar Adjustment Menu
Use the Radar adjustment menu to access the settings and features most
commonly used on the Radar Page including: Gain, Sea Clutter, Rain Clutter,
FTC, Zoom, Target Expansion, Trails, Guard Zone, VRM/EBL, MARPA, and
Hide/Show Navigation Features.
To select an adjustment option from the Radar Page
1. Press
ADJ/MENU
to open the Radar adjustment menu.
2. Press up or down on the
ROCKER
to highlight the option you want to
change, and then press
ENTER
.
To change a Radar adjustment menu setting:
1. Select an adjustment menu option using the method described previously.
2. Press up or down on the
ROCKER
to change the setting, range, or
percentage.
3. Press
ENTER
to accept the change, or press
QUIT
to close the Radar
adjustment menu.
Gain
Gain controls the sensitivity of the Radar receiver.
Auto
(default) is the
recommended setting. It automatically adjusts the gain to provide optimal
performance. You can also set gain manually. To see more detail, increase the
receiver sensitivity by selecting a higher gain. If there is too much detail, or the
screen is cluttered, lower the sensitivity (lower the gain) to increase the clarity of
the screen.
Sea Clutter
Sea Clutter controls unwanted screen clutter caused by choppy sea conditions.
The slider has three preset positions:
Calm
,
Moderate
, and
Rough
.
Rain Clutter
Rain Clutter controls unwanted screen clutter caused by rain at close ranges (use
the slider to select 1-100%).
FTC (Fast Time Constant)
FTC controls unwanted screen clutter caused by rain at a distance. The Fast Time
Constant has four settings:
Off
,
low
,
Medium
, and
high
.
