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Magellan MX Weather Station
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Columbia Weather Systems, Inc.
Installing the sensor transmitter and North
Orientation
North Alignment
The Magellan MX sensor has a built-in electronic compass for North
alignment.
The Magnetic Declination has been entered in the sensor for your area.
To change the magnetic declination, please see the Operation section.
Wind direction can refer to either
Magnetic North
, which is read with a
magnetic compass, or
True North
, which uses the earth’s geographic
meridians. The magnetic declination is the difference in degrees between
the true north and magnetic north.