Troubleshooting - Navman iCN 630 User Manual

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TROUBLESHOOTING

For detailed troubleshooting information, please refer to the website http://www.navman.com.
I cannot get a GPS fix – what could be wrong?
Check the satellite icon in the bottom left hand corner of the Map View screens – the satellite
will be coloured red if you have no GPS fix. If the satellite is coloured green, then the unit has a
satisfactory GPS fix to operate.
You can also view the GPS Status Screens to get more information on the GPS fix that your
unit currently has – for more information, refer to Section 11 Using the GPS Status Information.
If you do not appear to have a GPS fix, check the following points:
• Make sure that the aerial on the unit has been flipped outwards and upwards, so
that it has a clear view of the sky.
• Ensure that the vehicle does not have an athermic (heat reflecting) or a heated
windshield – these cut out all electromagnetic signals including GPS signals.
Owners of vehicles fitted with athermic or heated windshields should purchase a
third party GPS re-radiating antenna to ensure adequate GPS signal reception.
Please refer to the website www.navman.com for an updated list of vehicle models
using these windshields.
• The very first time you use the unit, the unit may take several minutes to get a
“first fix”. This is the time when it calibrates itself and locates the satellites. The
information it discovers in this time is remembered, and from that point on it should
take less than 2 minutes to get a fix. If you travel overseas, the unit will take up to 10
minutes to recalibrate itself and acquire a first fix.
Is the system NMEA (National Marine Electronics Association) compliant?
• Yes - all NAVMAN GPS receivers support NMEA 0183 Ver 2.20 and communicate
at 57,600 Baud to increase the performance of the receiver.
The GPS seems to lose its fix randomly – why is this?
• Many things can affect the GPS reception. It is always best to be outdoors with a
clear view of the sky.
• The GPS receiver will continue to search for a signal, and automatically re-calculate
the route once reception is restored.
NAVMAN iCN 630 user manual-ver 0.12