4' and 6' scanners with 1.8° and 1.1° beamwidths respectively, a 72 nautical mile range and 4 kilowatts of power offer outstanding clarity, precision and target definition. The long open array produces a narrower beam angle for increased bearing resolution, allowing you to discriminate easily between two objects that are close together. You can also overlay the radar image on the Garmin network's moving map cartography display, and split the screen to view mapping and the standard radar page simultaneously. The GMR 406 "big sweep" open array, with its narrower 1.1° beamwidth, enhances target separation so you can see even more detail and definition of what's out there with you while you're on the water.
- Pedestal sold separately
- GMR 404: 4'L, 1.8 horizontal beamwidth, 72nm maximum rnage, 4kW transmit power, 12lb. antenna weight
- GMR 406: 6'L, 1.1 horizontal beamwidth, 72nm maximum rnage, 4kW transmit power, 16lb. antenna weight
- Two Year Warranty
The West Advisor
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.