TeleType Company WORLDNAV 7400 - Manual (Page 4)

© 2011 TeleType GPS
29 Troubleshooting
Cannot
communicate
with computer
The USB cable is
not connected
well
Connect USB cable; check
ActiveSync settings
No GPS signal
Poor reception
area such as inside
a building, an
urban area or a
mountainous
region;
interference from
another device in
the vehicle
Mount the GPS on the
windshield with a clear
view of the sky; try
obtaining a signal outside
your vehicle; note that
some electronics and
windshield treatments
interfere with GPS signal
strength
Unable to use
navigation
function
Contact TeleType GPS Support Staff