Installation Considerations - NorthStar 961 Install Manual

Installation considerations

Ensuring a proper
installation
Avoiding
shortcuts
Using the GPS
antenna (AN150)
961/962 INSTALLATION MANUAL Revision A
The following basic installation considerations aren't a
substitute for all the details in SECTION TWO. To ensure that
you meet all critical installation parameters, be sure to read
and follow everything in this section.
To ensure a proper installation, it is highly recommended that you
perform all of the following activities before starting the installation:
•
review/survey the vessel's layout and existing equipment
•
review all the installation materials
•
review all the installation requirements, including:
- the physical requirements (spacing, location with regard to other
equipment, etc.)
- the electrical and electronic requirements (interference between
other pieces of equipment, power requirements, etc.)
Although the system itself is very straightforward and easy to
understand, there are several basic requirements you must meet before
safe and proper operation can be assured. This section addresses several
topics regarding the minimum installation requirements for the system to:
•
be mounted correctly
•
accurately receive GPS and DGPS signals
•
navigate safely
The majority of installation problems are caused by shortcuts taken with
system cables. When installing your 961/962, be sure to:
•
assemble the connectors carefully
•
use the right crimping tool for the connector
•
don't make sharp bends in the cables
• leave service and drip loops
•
tie-wrap all cables to keep them secure
• if cables are lengthened, seal all wiring splices
The "active" AN150 GPS antenna is best mounted in the clear, and low on
the vessel to avoid extra motion from pitching and rolling. The AN150
should be mounted lower than directional high-power transmitting
antennas, such as radar or satcom.
The length of the coaxial cable (supplied) to the antenna must be a
minimum of 20 feet, but not more than 100 feet. Coil up any unused
SECTION TWO - Installation
CAUTION!
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