APPENDIX
Troubleshooting Tips.
1. No updated display in your PC while moving.
Check cable connections and COM port setting AT Control Panel/System
Properties/Device Manager/Com-Port.
Check raw data by using Window Terminal 4800bps
2. No ASCII NMEA data when running terminal program in COM-n,4800 8N1
Check Control Panel/System Properties/Device Manager/Com-Port
.
3.Navigational software does not auto detect the GPS receiver
Check Installation or you can assign the software to receive the GPS signals from
the comport. It is normally Com1.
4
.
If your PC recognizes GM-48S as a mouse
Please remove the GM-48S from the Port of your PC or device and plug it back. If
it still happens, please unplug it and restart the computer or device. Then plug in
after the O/S finishes executing.
5.No GPS data after program initialize.
Check DB-9 connection.
Check for GPS obstruction toward the sky.
6
.
GPS data are visible but no activity on the MAP SOFTWARE.
Check to see if the Map software desire NMEA sentences (GPRMC, GPGGA,
GPGSV, GPGSA) are present in viewing using Terminal Windows set at 4800bps.
