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GMR 20
Specifications

Weight: Dome: 26 lbs; cable: 8.4 lbs

Physical Size: 28” diameter, 8” high

Transmit Power: 2KW

Power input: 10-35 Vdc, 25W

Antenna Beamwidth: 3.6° horizontal / 25° vertical

Antenna RPMs: 24 rpm

Scanner Operating Temperature: Range: -15° C to 70° C, and a relative humidity up to 95% at 35° C

Wind Velocity (relative): Withstands up to 100 Kts without performance degradation

Scanner Waterproofing: Waterproof to IEC 60529 IPX7 standards

Bearing Accuracy: 1 degree

Maximum Range: 24 nm

Minimum Range: 20 meters

Range Discrimination: 20 meters

Range Ring Accuracy: 20 meter or +/- 1.5% of range scale, whichever is greater

Controls: Auto & Manual Gain Adjust; Manual or Auto (AFC) receiver tuning; Manual adjust for Rain Clutter and 3 presets for Sea Clutter.

VRM/EBL: 2 user adjustable, capable of floating

Presentation Modes: North up, Course up, Heading up

Interference Rejection: Yes - Anti-jamming algorithm

Radar/Chart Overlay: Overlay mode is supported. Users can view “radar only” split display for multiple views of radar and charting overlays.

Zoom Mode: 2x, 4x

Trails: Short, Medium, Long

Guard Zone Alarm: 2 guard zones - user adjustable

Off-center Function: Look ahead, Auto Shift, and Manual
FTC: Low, Medium, High

MARPA: Yes. Tracks up to 10 MARPA targets for radar plotting and collision avoidance. (Heading sensor is required.)


Specifications are subject to change without notice.

RADAR range performance is dependant upon both power output and height of the dome from the water.

* All radar graphics and cartography pictured here are derived from a Garmin Marine Network™ system utilizing the GPSMAP® 3006/3010 chartplotter/MFD (multifunction display). Some features shown may not be available on all Garmin MFDs.

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