Operation
Page 27
The meaning of typical indicator configurations is shown in the table below and Figure 14 shows the orientation of the AIS transceiver.
Green indicator only
The AIS transceiver is powered up, has a position fix and has transmitted at least one vessel information
report.
Red indicator only
The AIS transceiver has detected a system error. The likely causes of this are detailed in the
troubleshooting guide in section 6. Diagnostic messages displayed in proAIS
2
may also help
troubleshoot the cause of the error.
Amber and blue indicators
When silent mode is activated using the optional silent mode switch this combination of indicators is
illuminated to show that the transmitter is disabled.
Amber indicator only
The AIS transceiver is in 'transmit timeout' mode. This can be for a number of reasons:
•
The unit has only recently been powered on and is obtaining a position fix prior to transmitting its first
vessel information report. (This process can take several minutes).
•
Position fix has been lost. The AIS transceiver will attempt to regain position fix for 30 minutes before
entering an error state.
•
The AIS radio channels are exceptionally busy so there is currently no available timeslot for
transmission.
•
The unit has been in silent mode and after deactivating silent mode this amber indicator will illuminate
until the first AIS message has been sent
•
The AIS transceiver has been commanded by the local authority (via an AIS base station) to cease
transmissions.
