NorthStar 961 Install Manual page 37

961/962 INSTALLATION MANUAL Revision A
Other electrical equipment onboard can cause large amounts of electrical
noise, even at points that appear well-grounded. Try several ground
points, such as ground plate, vessel ground, engine block, and so on, to
determine which works best under different conditions.
Whenever any antenna is disconnected from on-board
equipment, be sure to ground the antenna shield in order to
discharge extremely large static voltages that can quickly build
up on an ungrounded antenna system. These voltages are
hazardous to personnel and equipment!
DGPS antenna cable connectors
Both ends of the differential receiver antenna cable end in UHF
connectors. For best results, coat these connectors with silicone dielectric
grease (DC 4 or equivalent) to protect the connector junction against the
intrusion of water and the surface corrosion of the contacts. In addition,
the connector area, including the shield-to-connector junction and the
jacket-to-crimp ferrule area, can be protected with liquid electrical tape
(Starbright Liquid Tape, available in color coordinating black or white), or
self-vulcanizing electrical tape (Tommy Tape).
To prepare the UHF connectors, follow the assembly instructions in
Figure 17 below.
SECTION TWO - Installation
WARNING!
Page 27