User's Manual

GlobalTrak ™ Field Setup and Diagnostic Guide
Problems with GSM Communication
Symptom Possible Cause Solution
No GSM communication
attempted
SIM card not installed or
installed improperly
Check SIM card installation
Configuration disables GSM
communication
Check the Configuration file for
errors and reload a correct file
GSM communication failed
after GSM timeout
No GSM signal available Test network strength with quad-
band phone. If no network
available, move installation where
a stronger signal is available
The GSM antenna is
disconnected
Reconnect the GSM antenna
The GSM antenna is damaged
or otherwise faulty
Replace the GSM antenna
Problems with Satellite Communication
Symptom Possible Cause Solution
GPS fix not attempted GPS antenna not connected Connect GPS antenna
Configuration disables GPS Check the Configuration file for
errors and reload a correct file
Damaged or otherwise faulty
GPS antenna
Replace the GPS antenna
GPS fix failure after GPS
timeout
The installation is shielded
from a direct view to the sky
Move the installation to a location
with a better view to the sky
Cold start fix was unavailable Retry a GPS fix at least 3 times
by creating CMU events
(eliminates cold start)
Symptom Possible Cause Solution
No Satellite communication
attempted
Configuration disables satellite
communication
Check the Configuration file for
errors and reload a correct file
The installation is shielded
from a direct view to the sky
Move the installation to a location
with a better view to the sky
High volume of VHF
interference present at the
installation’s location
Test interference levels with the
ORBCOMM spectrum analyzer. If
unacceptable interference levels
are present, move installation to a
location with less interference
The satellite antenna is
damaged or otherwise faulty
Test the antenna with the
antenna analyzer. If the antenna
is faulty, replace it
Satellite communication
failed after ORBCOMM
timeout
There was no satellite available
when transmission was
attempted
Using ORBCOMM View, ensure
there is a satellite overhead and
retest
Prepared: R. Straz Date: May 31, 2006 Page 17 of 17