Technical information
Page 99
Table 13 Troubleshooting
If the guidance given in the table above does not rectify the problem you are
experiencing, please contact your dealer for further assistance.
My MMSI is being
received by other
vessels but my vessel
name is not shown on
their chart plotter or PC.
● Some older AIS devices and chart
plotters do not process the specific
class B message which provides the
vessel name (message 24). This is
not a fault of your AIS transceiver.
Software upgrades are available for
many older chart plotters which will
correct this issue. The other vessel
should update its AIS unit and / or
chart plotting software to receive AIS
message 24.
External Sensors not
being recognised.
● Check Compatibility Mode option in
the Interface Settings Menu.
● Check the Baud Rate set.
● Check the wiring is correct.
VSWR Alarm Activated
or High VSWR.
● Ensure VHF Antenna is as far away
as possible from metallic structures
and any other antennae.
● Ensure VHF Antenna is as high as
possible.
● Ensure VHF Antenna is suitable for
AIS i.e. 3dBi Gain, 156-162MHz, and
uses high quality RG213 or RG214
cable.
● The VHF Antenna cable should be as
short as possible and no more than 30
metres (100ft) in length.
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