Airmar PB200 Owner's Manual & Installation Instructions - page 9
9
Choosing the Mounting Location
For accurate readings and a reliable GPS signal, selecting the best location for
the WeatherStation Instrument is very important. Easy access and appearance
should be secondary considerations. Since each installation is unique, the best
separation distances from other equipment on the boat will vary depending on the
particular equipment and how it is configured. Choose a location that balances the
requirements below (see Figure 2).
• The instrument must be mounted in “clear air”—away from obstructions in any
direction that will interfere with air flowing through the unit. If there is an
obstruction, be sure to mount the WeatherStation Instrument at least 2m (6')
away. On land, avoid roof tops, chimneys, trees, etc.
• If possible, mount the instrument higher than any other object. Mount it a
minimum of 500mm (20") above the surrounding surfaces.
NOTE: The higher the WeatherStation Instrument is mounted, the less accurate
the pitch and roll readings will be.
• To prevent interference to the magnetic compass, mount the instrument 1.2m
(4') away from anything that may create a magnetic field such as: magnetized
material, electric motors, electronic equipment, power/ignition cables, and
batteries.
• Because the instrument has a GPS, it must be lower than any on-board
INMARSAT communications antenna.
• Because the instrument has a GPS, be sure it is as far as possible from high-
powered transmitting antennas to avoid mutual interference.
• Because the instrument has a GPS, check for any electromagnetic shading.
That is, any obstructions from other vessels or shoreline buildings that will
interfere with the GPS signals that the WeatherStation Instrument must receive.
Figure 2. Minimum distance from WeatherStation Instrument
Courtesy of Northstar BNT, Acton, MA
Min. 1m
Min. 1m