Garmin GMR 404, Installation Instructions Manual

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GMR 404/406 Marine Radar Installation Instructions
9
Specifications
4 ft Open-Array Antenna
Type End fed slotted waveguide
Horizontal Beamwidth 1.8 degrees
Horizontal Sidelobes -23 dB within ±10 deg of main
-30 dB outside ±10 deg of main
Vertical Beamwidth 24 degrees
Antenna Gain 29 dB
Polarization Horizontal
Input Return Loss Better than -20 dB
Weight 12 lbs (5.4 kg)
6 ft Open-Array Antenna
Type End fed slotted waveguide
Horizontal Beamwidth 1.1 degrees
Horizontal Sidelobes -25 dB within ±10 deg of main
-30 dB outside ±10 deg of main
Vertical Beamwidth 24 degrees
Antenna Gain 30 dB
Polarization Horizontal
Input Return Loss Better than -20 dB
Weight 16 lbs (7.3 kg)
Open-Array Scanner
Transmit Power 4 kW
Transmitter Frequency 9410 ±30 MHz
Input Voltage 10.5 – 38 volts d.c.
Typical Input Power 45 W
Input Power (100 kts wind) 130 W maximum
Range/Pulse Width/PRF (nm/nsec/Hz) 0.125/65/2304
0.250/65/2304
0.500/80/2304
0.750/200/1152
1.0/250/1152
1.5/500/576
2.0/500/576
3.0/800/576
4.0/800/576
6.0 – 24/1000/576
36 – 72/1000/288
Antenna Rotation 24 rpm and 48 rpm
Maximum wind load 100 kts
Receiver Noise Figure Less than 4 dB
Environmental Temp: -10 to +60ºC
Humidity: 95% @ 35 ºC
Rel Wind: 100 kts
Waterproof to IEC 60529 IPX6