Garmin GPSMAP 180 Manuel d'utilisateur télécharger pdf (Page 79)

Installing the GPSMAP 180

The GPSMAP 180 must be properly installed according to the following instruc-

tions to get the best possible performance. The GPS antenna should be installed

first, followed by the display unit. To complete the installation, youll need the

appropriate fasteners for your installation, and a 1 x 14-thread marine antenna

mount available at most marine dealers.

Mounting the GPS antenna

The antenna should be mounted in a location that has a clear, unobstructed

view of the sky in all directions to ensure the best reception. Avoid mounting the

antenna where it will be shaded by the boats superstructure, a radome antenna, or

mast. Sailboat users should avoid mounting the antenna high on the mast to pre-

vent inaccurate speed readings caused by excessive heeling. Most marine VHF and

loran antennas will not seriously degrade the GPS antennas reception. Never paint

the antenna or clean it with harsh solvents.

The GARMIN antenna screws directly onto any standard 1 x 14-thread anten-

na mount. If you need to raise the antenna to avoid shading, try using a 1 x 14-

thread extension mast available at most marine dealers.

To install the GPS antenna:

1. Screw the antenna directly onto the 1 x 14-thread mount.

2. Route the cable to the mounting location of the display unit. Use the appropriate tie-

wraps, escutcheon plates, and sealant to secure the cable along the route and through

any bulkhead or deck.

3. Once the GPSMAP unit has been installed, connect the cable to the antenna connector

on the back of the display unit. Make sure that you turn the antenna-connector locking

ring 1/4 turn clockwise to lock the cable into place.

SECTION

APPENDIX

Installation

It is possible to route the coaxial cable either through, or

outside the antenna mount. The BNC connector on the

coaxial cable can be removed, and the coaxial cable short-

ned to ease installation. If the BNC connector is removed,

it must be replaced with a new BNC connector.

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Garmin GPSMAP 180 Manuel d'utilisateur Page 79