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GMR404 406
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Garmin GMR404 / 406

The Garmin GMR404 open array radar antenna

The GMR404 is a 4-foot scanner with 1.8° beamwidth and a 72 nautical mile range. With this bandwidth and 4 kilowatts of power, this radar offers outstanding clarity, precision and target definition.

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

Features

 

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, you can overlay the GMR 404 radar image on the Garmin network's moving map cartography display. You can also split the on-screen display so that you can view the map and the standard radar page simultaneously.

Easily Connect to Garmin Marine Network

The GMR 404 communicates with the Garmin 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 404) directly to a multifunction display. Or, with the addition of the GMS™ 10 Network Port Expander, you can connect multiple displays and network sensors to the same network. 

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: 12 lbs (404), 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)

    • THIS PRODUCT DOES NOT INCLUDE THE PEDESTAL 

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