Operation Manual

11
4. Trouble Shooting
Problem Reason Solution
Weak or no GPS signal can be received at the
place of GR-271 CF GPS
Connect an external antenna which locate as a
open space to your GR-271 CF GPS and then
press Reset Button
No position
output but timer
is counting
At outdoor space but GPS signal is blocked by
buildings or car roof.
Go outdoor and press Reset Button to try again, or
connect an external antenna to improve the poor
GPS signal.
Execute Fail Wrong CPU Type
Pocket PC support multiple types of CPU. Make
sure you download the correct software. (You can
use ‘setting’ function of start menu on your PDA
to check the correct CPU type)
Can’t Open
COM port
GR-271 CF GPS is not inserted or some other
application is using the COM port.
Insert GR-271 CF GPS or Close all other
applications that using the COM port.
Can’t Find GPS
Module
Poor connection Check the GR-271 CF GPs is inserted correctly.
No action for few minutes may cause Pocket PC
entry power save mode. It will close the COM
port at the same time.
Close the application and execute it again to
reopen the COM port.
No signal
Weak or no GPS signal when using GR-271 CF
GPS indoor.
Connect an external antenna to your GR-271 CF
GPS and place it at a open space, then press Reset
button.