Garmin GPSMAP 3005C - Manual (Page 95)

GPSMAP 3005C 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.
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