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Take a "big sweep" of your surroundings

The GMR 406 "big sweep" open array radar antenna allows you to scan more of what's out there with you while you're on the water. Whether ships, shores, birds or weather, you'll see it sooner with the GMR 406 and it's counterpart, the GMR 404.

See Everything in Sharper Detail

The GMR 406 is a 6-foot scanner with 1.1 ? beamwidth. With this bandwidth and 4 kilowatts of power, this radar offers outstanding clarity, precision and even more detailed target definition.

Integrate with any network-compatible Garmin chartplotter

Any network-compatible Garmin chartplotter can double as your radar screen. And as an aid to locational awareness, the GMR 406 radar image can be overlaid on the Garmin network's moving map cartography display. The on-screen display can also be split, allowing for a simultaneous view of mapping alongside the standard radar picture.

Easily Connect to Garmin Marine Network

The GMR 406 communicates with the Garmin Marine Network through a waterproof 100-megabit plug-and-play proprietary network ? which gives you the ability to expand your boat?s system as needed. You can connect a GPS antenna and one remote network sensor (like the GMR 406) directly to a multifunctional display. Or, with the addition of the GMS? 10 Network Port Expander, you can connect multiple displays and network sensors to the same network.

Moving map features Antenna Type: End fed slotted waveguide

Input Return Loss: Better than -20 dB

Polarization: Horizontal

Antenna Gain: 29 dB (404), 30 dB (406)

Horizontal Sidelobes:

-23 dB within +/-10 deg of main
-30 dB outside +/-10 deg of main (404)
-25 dB within +/-10 deg of main
-30 dB outside +/-10 deg of main (406)

Antenna Weight: 16 lbs (406)

Pedestal Physical Size: 24? x 11? x 16?

Transmit Power: 4KW

Power input: 10.5-38 Vdc, 45W typical

Input Power (100 kts wind): 130 W maximum

Antenna Beamwidth: 1.8 (404) and 1.1 (406) degrees horizontal / 25 degrees vertical (both 404 & 406)

Antenna RPMs: 24 rpm and 48 rpm

Scanner Operating:
Temperature: Range: -10 degrees C to 60 degrees C, and a relative humidity up to 95% at 35 degrees C

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

Scanner:
Waterproofing: Waterproof to IEC 60529 IPX6 standards

Bearing Accuracy: 1 degree

Maximum Range: 72 nm

Minimum Range: 20 meters

Range Discrimination: 20 meters

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

Receiver Noise Figure: Less than 4 dB

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

Clutter Suppression:
Sea Clutter
Rain Clutter
FTC
Pedestal Weight: 42 lbs (19 kg)
Cable: 15 meters long; 8.4 lbs (3.8 kg)

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

FTC presets: *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. Also has split overlay with standard radar presentation.

*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)

NOTE: You must purchase the GMR pedestal assembly, Part # 010-00484-02, to use this open array.