Garmin GPSMAP 4008 Owner's Manual page 83

Adjusting Rain Clutter on the Radar Screen
You can adjust the appearance of clutter caused by rain. Reducing the radar range also can minimize rain
clutter (page 63).
Setting Description
FTC This setting affects the appearance of large, hazy masses of clutter caused by rain at any
distance.
Rain Clutter This setting affects the appearance of nearby rain clutter and targets more than it affects
the appearance of distant rain clutter and targets. A higher rain clutter setting reduces
the appearance of clutter caused by nearby rain, but it can also reduce or eliminate the
appearance of nearby targets.
Note: Depending upon the radar in use, the rain clutter and FTC settings configured for use in one radar
mode may or may not be applied to other radar modes or to the Radar Overlay
1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore, Dual Range, or Sentry mode.
3. Complete an action:
• Select Menu > Noise Rejection > FtC for Cruising, Harbor, Offshore, or Sentry mode.
• Configure the setting for both screens in Dual Range mode. Select
> FtC for the GPSMAP 4000 series. Select Left > Noise Rejection > FtC for the GPSMAP 5000
series.
4. Complete an action:
• Select High, Medium, or Low to decrease or increase the appearance of rain clutter, if using a GMR
non-xHD radar. Other targets should remain clearly visible on the Radar screen.
• Select Up or Down to decrease or increase the appearance of rain clutter, if using a GMR xHD radar.
Other targets should remain clearly visible on the Radar screen. If the FTC setting is greater than 50%,
consider reducing the radar range.
5. Complete an action:
• Select Menu > Noise Rejection > Rain Clutter for Cruising, Harbor, Offshore, or Sentry mode.
• Configure the setting for the short-range screen in Dual Range mode. Select
Rejection > Rain Clutter for the GPSMAP 4000 series. Select Left > Noise Rejection > Rain Clutter
for the GPSMAP 5000 series.
• Configure the setting for the long-range screen in Dual Range mode. Select
Rejection > Rain Clutter for the GPSMAP 4000 series. Select Right > Noise Rejection > Rain
Clutter for the GPSMAP 5000 series.
6. Select Up or Down to decrease or increase the appearance of nearby rain clutter until other targets are
clearly visible on the Radar screen.
Clutter caused by rain may still be visible.
GPSMAP 4000/5000 Series Owner's Manual
®
(page 75).
> Menu > Noise Rejection
> Menu > Noise
> Menu > Noise
Radar
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