Garmin GPS 120 - Manual (Page 57)

Your GPS 120 system includes the following hard­
ware components:
• G P S 120 Unit
• Gimbal Mount Bracket &r two mounting knobscrews
• GPS Antenna with 30’ able
• Power/Data Cable
If you are missing any of these pieces, see your dealer. To complete the standard
installation, you will also need the following pieces:
• 1 amp in-line fuse (may be included with Power/Data able)
• Four 1/4” (6mm) diameter mounting screws
• 1” X 14 marine antenna mount and screws
Several optional accessories are also available to provide flexible installation on any
vessel. See your GARMIN dealer for more information on these items:
• Swivel Mount • AC Adapter
• Antenna Cable Extension • Cigarette Lighter Adapter
To begin installation, you’ll need to select a suitable mounting position for the
antenna and the unit. Once you’ve identified the best mounting loations for your
appliation, install the antenna and cable first, then the unit and wiring harness.
Mounting the GPS antenna
The antenna should be mounted in a kxation that
has a clear, unobstruaed view of the sky in all direc­
tions to ensure the best reception in all conditions.
Avoid mounting the antenna where it will be shaded
by the boat^ superstructure, a radome antenna, or
mast. Most marine VHF and loran antennas will not
seriously degrade the GPS antennal reception. Never
paint the antenna or clean it with harsh solvents.
To install the GPS antenna;
1. Screw the antenna directly onto the 1" -14 m ount
2. R oute the cable to the location of the display uniL using the appropriate lie-
w raps,escutcheon plates and sealant to secure the cable along the route and through any
bulkhead or deck.
3. O nce the G PS 120 unit has been installed, connect the cable to the antenna connector on
the back of the display unit Turn the antenna connector 1/4 turn clockw ise to lock the
cable into place. 4 g