User's Manual

HUDGPS
User Manual
Rev.A00
23
GlobalTop Technology Inc.
16 Nan-ke 9
th
Rd Science-based Industrial Park, Tainan 741, Taiwan, R.O.C.
Tel:[phone] Fax:[phone] http://www.gtop-tech.com
email:[e-mail]
© Copyright 2006 GlobalTop Inc.
Appendix B. Trouble Shooting
Problem of Setup
Error/Problem Cause Trouble shooting
Can not find the GPS
device through
Bluetooth interface
Install not correct or battery
low
Check if HG-100 is installed
properly, and confirm the battery
level is suitable (green LED
blinks or none LED)
Unable the connect
through Bluetooth
Configuration incorrect
Please re-install or refer to your
PDA’s user manual for
configuration.
Fail to open COM
Port
Bluetooth manager is not
configured properly, or the
COM port is adopted by
another software.
Please check your Bluetooth
manager settings, close the
software may use COM ports
and try again. Or check if there
is any password protection.
No NMEA code (GPS
data flow)
(1) Some PC/PDA will enter
the power saving mode if
you stop input for a few
minutes. Bluetooth
interface will be reset in
such case.
(2) Wrong baud rate or com
port setting
(1) Disable the power saving
mode, try to connect GPS
receiver again.
(2) Correct with right baud rate &
com port
Unstable GPS signal
(1) Degrade by anti-sunlight
film with receiver placed
inside car
(2) Some cases described in
sec7.2
Plug External antenna and place
on car roof
Poor GPS signal
(1) Storm effect
(2) Atmosphere turbulences
(3) SA ON by USA military.
NA
Concerning of Poor GPS Signal
It is possible unable to receive GPS signal or signal low in these places: