Garmin GPSMAP 4008 Installation Instructions Manual

Also see for GPSMAP 4008 - Marine GPS Receiver: Technical reference Important safety information Owner's manual Supplement Owner's manual

Contents

Garmin GPSMAP 4008 Installation Instructions Manual Manual pdf 5 page image

5GPSMAP 4000/5000 Series Installation InstructionsMounting the GPS AntennaYou have one of two types of GPS antennas in your product box. Use the illustrations to identify the included antenna and follow the correctinstallation procedures.GPS 17Can 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 17xCan be surface mounted, pole mounted, or mounted under afiberglass 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 antennaYou 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 alldirections.Avoid mounting the GPS antenna where it is shaded by the superstructure of the boat, aradome antenna, or mast.On a sailboat, avoid mounting the GPS antenna high on the mast, to prevent inaccuratespeed readings caused by excessive heeling.The GPS antenna provides more-stable readings when located nearer to water level.Mount the GPS antenna at least 3 ft. (1 m) away from (preferably above) the path ofany radar beam or a VHF radio antenna.Temporarily secure the antenna in the preferred mounting location and test it for correctoperation. If you experience interference with other electronics, try a different location.When you verify correct operation, permanently mount the antenna.•••••SS BARNETTRadar VHF Radio Antenna ft.(1 m)Above - bestBelow - OKEMI (Electromagnetic Interference)from engine componentsBestBetterGoodEMIGPS 17x Placement ConsiderationsSS BARNETTRadar VHF Radio Antenna ft.(1 m)Above - bestBelow - OKEMI (Electromagnetic Interference)from engine componentsBestBetterGoodEMIGPS 17x Placement Considerations