USB Dongle Series Model:UD-731R
UniTraQ International Corp.
RoHS compliance
.
2010,08, Version 1.0
18
9. Trouble Shooting
Satellite signal problem
The following situations are normally if you find the GPS satellite signal is very low or
absolute missing:
There is something cover above.
While you are in a tunnel.
Inside of the building.
Near by buildings.
Put GPS receiver inside the car, some of the sun-control film with metal that
makes microwave can not be radiate.
GPS not fix problem
If you see “GPS not fix” message on the screen after you enable the UD-731R GPS
receiver, please consider the possible problems below:
Wait few minutes. GPS position may cost several minutes.
Make sure the UD-731R GPS receiver is put on a proper place. Some sun-control
film for car may cutoff the satellite signal. You may replace it and try again.
USB driver confliction problem
If you notice mouse cursor is jumping when you plug receiver into USB port, remove the
UD-731R from USB port and plug-in again.
10. APPROVED NMEA MESSAGE
The serial interface protocol is based on the National Marine Electronics Association’s NMEA
0183 ASCII interface specification. This standard is fully define in “NMEA 0183, Version 3.01”
The standard may be obtained from NMEA,
www.nmea.org
