Garmin GPS III A Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Garmin GPS III A Owner's Manual Manual pdf 87 page image

The GPS III’s antenna may be removed to allow attachment of an optionalremote-mounted antenna. In some applications, using a remote-mounted antennawill dramatically increase the number of satellites received. The GPS antenna shouldbe mounted in a location which provides an unobstructed view of much of the sky. A minimum of four satellites areneeded to determine a three dimensional position. Satellite coverage will vary throughout the day, but may be checkedat any time using the Satellite Status Page (see page 25). If satellite reception is limited in your particular installation,you may want to consider one of the following options:Remote Suction Cup Mount – allows you to mount the standard detachable antenna up to 6 feet away from theGPS III unit, using a suction cup mount. This mount should only be used inside a vehicle.GA 26 Remote Antenna – allows you to mount an amplified antenna outside the vehicle, up to 8 feet away, usingsupplied magnetic or suction cup mounts. Trunk lip and permanent flange mounts are also available.GA 28 Remote Marine Antenna - allows you to mount an amplified antenna outside the vehicle, up to 30 feetaway, using a standard 1-inch marine antenna mount (not supplied). An optional extension cable allows you tomount the antenna up to 60 feet away.To remove the attached antenna:1. Rotate the antenna toward the rear of the unit as shown.Note: The antenna can only be removed or installedin this position.2. Pull the antenna gently away from the unit.3. To install an optional external antenna, mate theBNC connector notches with the mounting postsand turn the knurled knob one-quarter turn clockwise.79APPENDIX DAntenna / Remote Mounting