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GMR 20/40 Radar Installation Manual
Specifications
Unit Dimensions: 28” (710 mm) D x 8” (205 mm) H.
Radar Scanner Weight: Unit 26 lbs; cable 8.35 lbs
Range Scales (Range Rings): GMR 40 — 1/8nm (1/32nm) to 36nm (9nm)
GMR 20 — 1/8nm (1/32nm) to 24nm (6nm)
Power Output: GMR 20: 2 kW / GMR 40: 4kW
Power Input Source: 10-35 v D.C. 28W
Operating Temperature Range: -25°C to 70°C, and a relative humidity up to 95% at 35°C
Beamwidth: Horizontal beamwidth of 3.6° nominal / Vertical beamwidth of 25° nominal
Range: GMR 20: 24 nm / GMR 40: 36 nm
Wind Velocity: Wind speed up to 100 Kts
Antenna RPMs: 24 rpm
Range Ring Accuracy: +/- 1 meter
Bearing Accuracy: 1°
Minimum Range: 35 meters
Range Discrimination: 30 meters
Sensitivity and Tune Controls: Gain, Sea Clutter, Rain Clutter, Frequency Tune
Radar/Chart Synchronization: Overlay mode. Split overlay with standard radar presentation.
Off Center Function: Look ahead, Auto Shift, and Manual
RF Transmit Frequency: 9410 ± 30 MHz