6.3
、
GPS Not Fix Problems
If you see [GPS not Fix] message on the screen after you enable
the G-Mouse GPS receiver, please consider the possibility below:
Please wait few minutes more. GPS position fix may cost several
minutes.
Please make sure that you put the G-Mouse GPS receiver at a
proper place. Some sun-control film for car may cutoff the satellite signal.
You may replace it and try again. Please make sure that you are not inside
of somewhere the GPS signal shaded. Please reference the chapter
[Satellite Signal Problem] about this.
7
、
Appendix A Software Protocol
The protocol of G-Mouse is designed base on NMEA(National
Marine Electronics Association) 0183 ASCII format. The full protocol is
defined in
“
NMEA 0183, Version 3.01
”
and
“
RTCM (Radio Technical
Commission for Maritime Services), Recommended Standards For
differential Navistar GPS Service, Version 2.1, RTCM Special
Committee No.104.
”
A.1
、
NMEA Transmitted Message
G-Mouse GPS receiver use FirstGPSTM as the core, and output
NMEA-0183 standard format message. The default communication
parameters for NMEA output are 4800 baud, 8 data bits, stop bit,
and no parity.
