Bluetooth GPS Receiver User Manual
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It is possible unable to receive GPS signal or signal low in these places:
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Inside the tunnel, GPS signal is blocked.
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Covers above, GPS signal is blocked.
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Inside buildings, GPS signal is blocked.
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Beside some buildings, GPS signal is disturbed.
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Inside forests, or too many covers, GPS signal is disturbed.
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If you use the
Bluetooth GPS Receiver inside the car, some anti-sunlight windscreen film
will makes the GPS signal degraded or signal lost .
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GPS satellite is owned by America military, sometimes they will tune-down the accuracy by
some reason. In such cases, the GPS position may not fixed exactly.
