Troubleshooting
GPS receiver cannot receive signals next to the repeater.
•
Check that +5VDC is present in the antenna end of the cable and in at the
antenna connector of the repeater. Broken or short-circuited cable?
•
Check that repeater power is on and LED is on.
No LED indication on GPS Repeater
•
Check that +12VDC is present in the wall power adapter connector
•
Check that power is available in the wall connector where power adapter
is connected
LED turns RED and GPS coverage is lost.
•
Check that outdoor receiving antenna is in a location where it cannot
receive signals from the repeater
•
Try turning down the gain setting
•
Check that there are no interference signals close to the receiving antenna.
The system is very sensitive to interference at the GPS L1 frequencies
(1575.42+/-20 MHz)
Small indoor coverage radius
•
Check that outside antenna is correctly positioned
•
Check that there are no interference sources close to the receiving antenna
•
Check gain setting
•
Check the repeater positioning
•
Are there obstacles that could limit signal coverage?
•
Shorter cable run or a line amplifier can improve signal level slightly
•
Signal splitter and additional repeater units may be required to cover
a larger or obstructed areas
Figure 2:
Wideband gain. NOTE: Attenuation outside the 1.575GHz passband is
typically better than –60dB. Graph indicates lower attenuation due to measurement
setup (spectrum analyzer noise floor).
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