Transystem TripMate 850 - Manual (Page 26)

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2.7 Helpful Tips
− It’s better to turn off the TripMate850 when you don’t use it, or the serial Flash's life can’t
last long.
− Some vehicles having heavy metallic sun protecting coating on windshields may affect
GPS signal receptions
− Driving in and around high buildings may affect GPS signal receptions.
− Driving in tunnels or indoor parking may affect signal reception.
− In general, any GPS receiver performs best in open space where it can see clean sky. Also
weather will affect GPS reception – rain & snow contribute to worse sensitivity.
− Low battery of PDA or TripMate850 may affect signal reception.
− Please check the correct “COM” and “Baud rate” of your PDA.
− TripMate850 output data every second, therefore the actual position and the position
shown in your map may have slight time delay. This may happen when you drive at high
speed or make a turn around a corner.
− TripMate850 may not work indoors where it can not see the sky.
− For the 1
st time you use TripMate850, it will take 1 to 3 minutes to obtain the satellite
constellation information and fix your position, this is called “Cold Start”. If you replace
the battery, TripMate850 will do Cold Start again.
− If your TripMate850 can’t fix your position for more than 20 minutes, we suggest you
change to another spot with open space and then try again.