Raymarine Ray 90, Installation And Operation Instruction Manual

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11.6 GNSS (GPS) troubleshooting
Problems with the GNSS (GPS) and their possible causes and solutions are described below.
Before troubleshooting GNSS (GPS) problems, ensure your product has the latest software, by
checking the Software Updates page on the Raymarine website
www.raymarine.com .
No fix
Possible causes Possible solutions
GNSS (GPS) switched off. Ensure your internal GNSS (GPS) receiver is switched on.
Geographic location or prevailing
conditions preventing satellite fix. Check periodically to see if a fix is obtained in better
conditions or another geographic location.
GNSS (GPS) Antenna location. For optimum performance the antenna should be mounted
above decks and have a clear, unobstructed view of the sky,
and not be in close proximity to any structural bulkheads
or other electrical equipment or cables which may cause
interference.
No position data
Possible causes Possible solutions
Internal receiver is switched off. Ensure your external or internal receiver is switched on.
Wrong Network output selected. Ensure the correct network type and speed is selected in the
Network output menu: Menu > Set-up > Network output .
Poor / damaged / insecure cable
/ connection. 1. Check that the connectors are fully inserted into the unit
and locked in position.
2. Check the cables and connectors for signs of damage or
corrosion, replace if necessary.
3. Check the vessel’s battery voltage, the condition of the
battery terminals and power supply cables, ensuring
connections are secure, clean and free from corrosion,
replace if necessary.
4. With the product under load, using a multi-meter, check
for high voltage drop across all connectors/fuses etc,
replace if necessary.
GNSS (GPS) data output
The Ray90 and Ray91 include an internal GNSS (GPS) receiver. However, these products do NOT
output position data to external devices.
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