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Chapter 3: Installing the GPS Antenna

The RS 12 package contains the following items:

1. Low profile GPS Receiver, with 10 m (33 ft) cable

2. Flush mount gasket

3. Mounting studs (x2) and thumb nuts (x2)

4. Pole mount kit *

Note:

* If you intend to mount the receiver on a pole, you will need to obtain a suitable

pole with 1 inch 14 TPI thread.

3.1 Selecting the Mounting Location

The RS12 can be mounted on a pole or flush mounted on a suitable horizontal

surface.

Receiver Location

The RS12 receiver is designed to receive the signals emitted from satellites in a

direct path. It should be mounted:

• On a horizontal surface.

• In a location that is open and clear of any obstructions (such as masts, search

lights, or other structures) that could block line-of-sight reception of signals.

• As low as possible: the height of the receiver is not as important as it having a

clear view horizon to horizon for optimum signal reception. In fact, the lower

the unit can be mounted and have a clear view to satellites, the better. The

more stable the unit, the more effectively it will track satellites low to the hori-

zon.

Note:

Do NOT mount the receiver up a mast, as the receiver will swing with the boat,

leading to significant COG/SOG errors.

• As far as possible from any sources of interference: the receiver should be sep-

arated by at least 1 m (3 ft) from other antennas and electronic equipment. It

should not be mounted in the direct path of a radar’s beam.

When mounting the receiver flush to a surface:

• select an area that allows access to the underside of the mounting surface

• avoid areas where the receiver might be stepped on or tripped over

Raymarine RS12 User Manual

Questions and Answers: