Diweitrack TK116 - Long-Term Positioning Failure; Serious Position Drift

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5）If the terminal becomes offline on the last day of
one month, please check if GPRS is close.
6）Inquiry the parameters of terminal via commands
and check the accuracy of the parameters.
10.3 Cannot position for a long
time
If the GPS is active, but the terminal cannot
be positioned for long time, please check the
terminal:
1）If the vehicle is in the place where there is no
GPS signal.
2）The upside of the terminal should be installed
with face toward the sky.
3）The GSM and GPS signal may be weakened if
the terminal is installed in the place with
electromagnetic wave absorption material(such as
metal blocks), special attention should be paid if
there is metal thermal insulation layer or heating
layer on the front windshield, so that the position
accuracy will decline, and the severe ones will not
be positioned.
10.4 Position drift is serious
Serious position drift will be found in places
where GPS signal is poor. Please drive the vehicle
to the open places.