Garmin GPSMAP 5212 Installation Instructions - Page 5

Mounting the GPS Antenna You have one of two types of GPS antennas in your product box. Use the illustrations to identify the included antenna and follow the correct installation procedures. GPS 17 • Can be surface mounted or pole mounted. See page 6. • Uses a separate template for surface mounting. See page 23. • Connects to the chartplotter using NMEA 0183. See page 9. GPS 17x • Can be surface mounted, pole mounted, or mounted under a fiberglass surface. See page 7. • Does not use a separate template for surface mounting. See page 7. • Connects to the chartplotter using NMEA 2000. See page 10. Caution: Be sure to follow the correct mounting directions and the correct wiring directions for the antenna included with your chartplotter. Choosing a Location for the GPS Antenna You can surface mount the GPS 17 and GPS 17x antennas, attach them to a standard 1 in. OD pipe-threaded-pole marine mount (14 threads- per-inch-not included), or even install a GPS 17x antenna under fiberglass. Select a suitable location for the GPS antenna on your boat. To ensure the best reception, mount the GPS antenna in a location that has a clear, unobstructed view of the sky in all directions. • Avoid mounting the GPS antenna where it is shaded by the superstructure of the boat, a radome antenna, or mast. • On a sailboat, avoid mounting the GPS antenna high on the mast, to prevent inaccurate speed readings caused by excessive heeling. • The GPS antenna provides more-stable readings when located nearer to water level. EMI Better Best Good SS BARNETT EMI (Electromagnetic Interference) from engine components Above - best • Mount the GPS antenna at least 3 ft. (1 m) away from (preferably above) the path of any radar beam or a VHF radio antenna. • Temporarily secure the antenna in the preferred mounting location and test it for correct operation. If you experience interference with other electronics, try a different location. When you verify correct operation, permanently mount the antenna. Below - OK Radar 3 ft. (1 m) VHF Radio Antenna GPS 17x Placement Considerations GPSMAP 4000/5000 Series Installation Instructions