Operation Manual

6 RAYSTAR 112 Installation and Operation Handbook
to the point of connection. It is important to keep the cable separated
from other shipboard cables as much as possible to prevent
interference pickup.
2.1.2 Items Supplied
1 each Raystar 112 GPS Sensor Unit, with 33ft (10 m) cable
1 each Instruction Manual
2.1.3 Mounting the Sensor
The aluminum base of the sensor is threaded for use with a standard
1inch x 14 NPT marine antenna mount or extension mast. The base of
the sensor has a slot cut into it so that the prewired cable can be fed
externally of the mount or extension mast if so desired. If the connector
is removed, the cable can be fed down through the extension mast or
mount, exiting through the mount assembly.
The aluminium base of your Raystar 112 Sensor has received a
chromation treatment which adds toughness, resistance to wear and
tear, and resistance to corrosion of the assembly. Prior to attaching the
GPS sensor to the mount, we do recommend that a light coating of the
silicon grease be applied th the surface of the threads of the sensor and
mount.
Screw the antenna onto the mount fully by hand while paying attention
to avoid curling, tight loops, and kinking of the cable. When the unit is
fully threaded on the mount use a proper sized spanner wrench and
protective cloth to grip the base and snug the sensor to the mount.
If the cable is fed internally through an extension mast, it is
recommended that the cable slot in the sensor base assembly be
sealed with RTV silicon sealant as protection from the environment. If