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GPSMAP
®
4000/5000 Series Owner’s Manual 65
Radar
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).
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  > .
Harbor Mode
Offshore Mode
Offshore mode is the standard radar operation for use in open waters with a GMR xHD radar.
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  > .
Offshore Mode