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SBAS (satellite-based augmentation system) provides additional accuracy and
reliability for the GPS devices. Ground stations are necessary to achieve the
purpose. The SBAS feature works where such stations exist. You can enable
the SBAS feature. (See “Settings” later.)
Electronic Compass
The Electronic Compass page shows directions of movement including
orientation, pitch angle, roll angle, and azimuth angle.
NOTE: Follow these guidelines when using the compass.
Keep the device away from objects that generate magnetic fields, such
as cars, large belt buckles, computers, cell phones, etc.
If you must use the compass inside a car, the device should be at least
20 cm (7.87 inches) away from metal objects such as car doors,
dashboard, air vents, etc.
Avoid playing the MP3 music with the internal speaker or connecting
the AC adapter. This will cause the magnetic interference to the
compass.
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