NorthStar 957 Installation Instruction

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SECTION TWO: Installing and wiring the 957
Page 6
957 Installation Manual, Revision C1
Bench-testing the 
957 
Northstar recommends bench-testing the 957 before installing 
it onto the vessel. Bench testing ensures that the equipment is 
fully operational, and lets the 2201 antenna or 2701 beacon 
receiver collect the current almanac and ephemeris data for the 
installed location, which results in less on-board installation 
time. 
Mounting the 957
Choosing the best location
Choose the mounting location carefully—before you drill or cut. 
The display screen is high-contrast and anti-reflective, and is 
viewable in direct sunlight, but for best results, install the 957 
out of direct sunlight. See the figure below for additional 
mounting recommendations. 
CAUTION!
Make sure that the 957 doesn’t interfere with any
other on-board systems. Check all other systems to
ensure that their performance doesn’t degrade
when the 957 is turned on.
CAUTION!
Proper installation of the Northstar 957 is critical to
accurately receive and effectively use GPS/WAAS
signals under a wide variety of weather conditions.