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Troubleshooting |
NSPL-500 User Manual
Troubleshooting
Issue
Possible cause and remedy
Power indicator not
illuminated
Check power supply connections and
fuse or circuit breaker
Check polarity of power supply
connections
Check power supply voltage
‘VHF’ indicator does
not illuminate when
VHF Radiotelephone
is transmitting
Check the antenna output of the VHF
Radiotelephone is connected to the
antenna splitter input labelled ‘VHF’
‘AIS’ indicator does
not illuminate when
AIS transceiver is
transmitting
Check the antenna output of the AIS
transceiver is connected to the antenna
splitter input labelled ‘AIS’
Clicks or pops
are heard from
a connected FM
broadcast receiver
This is normal and may occur during VHF
or AIS transmission
VHF or AIS
transmission range is
reduced
A small reduction in transmission range
is normal and due to the insertion loss of
the antenna splitter
Both the ‘AIS’ and
‘VHF’ indicators
illuminate when
the VHF radio is
transmitting
This is normal operation with some
brands of VHF radio and not a fault.
Function of the antenna splitter is
unaffected
If the guidance given in the table above does not rectify the prob-
lem you are experiencing please contact your dealer for further
assistance.
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