Garmin GPSMAP 4008 Owner's Manual page 69

Harbor Mode
Harbor mode is the standard radar operation for use in inland waters with a GMR xHD radar. Harbor mode
works best with short-range radar signals (2 nm or less).
Note: If you switch from Sentry mode to Harbor mode, the radar switches to full-time transmission and
disables any guard zones.
Showing Harbor Mode
From the Home screen, select Radar > Harbor.
Offshore Mode
Offshore mode is the standard radar operation for use in open waters with a GMR xHD radar.
Note: If you switch from Sentry mode to Offshore mode, the radar switches to full-time transmission and
disables any guard zones.
Showing Offshore Mode
From the Home screen, select Radar > offshore.
GPSMAP 4000/5000 Series Owner's Manual
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Harbor Mode
Offshore Mode
Radar
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