Raven RPR 110, Installation And Service Manual

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10
TROUBLESHOOTING
*Make certain the antenna is mounted so that it has a clear view of the sky and is
as far away from electrical noise sources as possible.
Attempt to isolate all problems as either:
· Receiver
· Antenna (including cables)
· Power
· Transmitting Site
· Serial Communications
a. Receiver
b. Peripheral device
CHECKING YOUR INSTALLATION
Monitor the effects on the beacon and GPS receiver performance as each device on
your vehicle is powered on. If the receiver stops operating properly when a device
is powered on, that device is causing interference and your antenna location may
need to change. For example, if running your engine causes interference, then
ignition noise or alternator noise is interfering with signal reception. Move the
antenna further away from the engine.
Receiver - Normally only 5 GPS satellites are required for good accuracy. View
the LED status indicator on the front panel and check the number of
satellites being tracked. Also look for the yellow RTCM light indicating
good differential reception.
Antenna - Check connections between the antenna and receiver. Verify the connectors
and cable are in good condition. An ohmmeter can be used to determine
if the antenna cable is open or shorted.
Power - Red power LED remains lit while power is applied.
Transmitting -If the receiver is operating in WAAS Mode, you may be out of range of
a satellite or the satellite may be off air. WAAS status information
is available on the Internet at www.FAA…
Serial Coms -Using GPS Mon software, check for proper communication settings baud
rate, and COM port number. Make sure the cable you use, if not
provided by Raven, is wired correctly. See section titled “Rear Panel
Serial Interface”.