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Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental information concerning the use and operation of this and other Garmin products.
In Europe, contact Garmin (Europe) Ltd. at +44 (0) 870.8501241 (outside the UK) or 0808 2380000 (within the UK). Note: The Garmin GMR 404/406 has no user-serviceable parts. If you encounter a problem with your unit, please take it to an authorized Garmin NMEA dealer or contact Garmin Product Support for repairs.
Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or sanding. When drilling or cutting, always check first to see what is on the other side of the surface. If you experience difficulty with the installation, contact Garmin Product Support or seek the assistance of a professional installer.
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Mounting Template. If the end with the hatch is pointed toward the bow, the Bearing Offset in the chartplotter must be set to 180° (Figure 4). To mount the scanner: 1. Determine a suitable mounting location and tape the Mounting Template in place. The Mounting Template has two hole patterns Option A and Option B. Determine which pattern fits your mount or better suits your mounting location. Using a Center Punch, indent the center of each mounting hole. Using a 13 mm (1/2") bit, drill the four mounting holes. (This step is not necessary if you are using a pre-drilled Garmin compatible Furuno or Raymarine ® 2. Hoist the scanner into position using the supplied strap. Position the strap over the ends of the antenna mount as shown in Figure 5. Make sure that the strap is positioned as close to the scanner as possible.
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Route the cable as needed, depending on the type of mount you are using. DO NOT cut the cable! It may be necessary to drill a 31.7 mm (1.25") hole for routing the power/network cable. Garmin provides a rubber cable grommet that can be used to cover the cable installation hole.
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Connect the scanner to the vessel’s water ground using an 8 gauge copper cable. The scanner connection should be made on one of the four mounting studs using a M10 nut and flat washer to secure the cable. Wiring Diagram GMR 404/406 Marine Radar Installation Instructions...
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Note: Each component of the expanded network must be installed according to its installation instructions. These diagrams only show how a GMR 404/406 radar interacts with a network and do not show proper wiring for other network components. GMR 404/406 Marine Radar Installation Instructions Stand Alone Network...
Radar Setup To take advantage of the GMR 404/406 features, the Garmin Marine Network may require a software update. A software update card is provided in the Marine Data Management Kit. The newly installed GMR 404 or 406 will not transmit until the radar is properly configured. Follow the instructions below to properly configure the radar.
2 guard zones – user adjustable Look ahead, Auto Shift and Manual Selectable to 24 or 48 rpm Tracks up to 10 MARPA targets for radar plotting and collision avoidance (Heading sensor is required) GMR 404/406 Marine Radar Installation Instructions...
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Model GMR 404 51.6" [1310 mm] GMR 406 75.7" [1923 mm] GMR 404/406 Marine Radar Installation Instructions 7.87″ 200.0 mm 5.91″ 150.0 mm 12.87″ 326.8 mm 17.35″ 440.8 mm 7.87″ 5.51″ 200.0 mm 140.0 mm 12.34″ 313.5 mm...
Consult the dealer or an experienced radio/TV technician for help. This product does not contain any user-serviceable parts. Repairs should only be made by an authorized Garmin service center. Unauthorized repairs or modifications could result in permanent damage to the equipment, and void your warranty and your authority to operate this device under Part 15 regulations.
All Garmin marine radomes and open array scanners are warranted to be free from defects in materials or workmanship for two years from the date of purchase. Within this period, Garmin will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost.
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