Radar Display Modes
The Radar screen has four standard operating modes. Each mode is available for use only with a compatible
radar.
• Cruising mode—shows a full-screen image of the gathered radar information.
• Harbor mode—intended for use in inland waters, this mode works best with short-range radar signals (2
nm or less).
• offshore mode—intended for use in open waters, this mode works best with long-range radar signals.
• Sentry mode—allows you to put the radar into timed-transmit mode, in which you can configure a radar
transmit and standby cycle to conserve power. You can also enable a guard zone in Sentry mode, which
identifies a safe zone around your boat.
Radar Mode
Compatible Radar
GMR 20, 21, 40, 41 GMR 18, 18 HD,
Cruising
X
Harbor
Offshore
Sentry
X
Cruising Mode
Cruising mode is the standard radar operation for the GMR 20, 21, 40, 41, 18, 18 HD, 24, 24 HD, 404, and
406 radar.
NoTe: If you switch from Sentry mode to Cruising mode, the radar switches to full-time transmission and
disables all guard zones.
Showing Cruising Mode
From the Home screen, select Radar > Cruising.
A full-screen image of the gathered radar information appears. Your position is in the center of the screen,
and the range rings
➊
are shown on the bottom of the screen.
➊
➋
GPSMAP 700 Series Owner's Manual
24, 24 HD
X
X
provide distance measurements. The distance between rings
Cruising Mode
GMR 404, 406
GMR 604 xHD, 606 xHD,
1204 xHD, 1206 xHD
X
X
X
X
X
Radar
and the radar range
➋
➌
➌
55
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