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GPS
frequently asked questions
Q: GPS module is present but no coordinate information is available?
A: 1. Check if the GPS module is present; if not, please check if the HDD is installed or properly contacted.
2.
Check if GPS antenna is properly contacted and if the antenna is broken. The antenna is recommended to
be
placed in an area having strong signal. Note that some car glass shielding film may form a GPS signal.
3.
If the test is conducted indoors and the GPS antenna set indoors is shielded, it is recommended to place
the
GPS antenna outdoors.
Q: GPS geographic position is not accurately displayed on the map?
A: if the GPS module is positioned, it indicates that the signal is valid. Government limitation, error tolerance or
GPS signal interrupt may cause deviation; The satellite map may have some deviation by for the sake of safety.
In general, this problem can be solved by using GPS correction.
3G/4G wireless related problems
Q: What shall be noted if 3G wireless module is used for dial up?
A: If built-in wireless module WCDMA or EVDO is selected, the module settings are different and also
depend on the model used; thus, please check the consistency between the module used and SIM card. Do
not use