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Manual configuration
Page 53
10 Manual configuration
The transceiver is configured using standardised NMEA0183 (IEC61162-1/2) sentences developed for
configuration of AIS Aids to Navigation transceivers.
configuration of AIS Aids to Navigation transceivers.
10.1 Basic Type 1 AIS AtoN configuration (FATDMA operation)
The following information is the minimum required configuration for a Type 1 AIS AtoN reporting message #21
only.
only.
● The AtoN station must be configured with the 'real' AtoN MMSI using the AID command.
● The AtoN station must be configured with an Name, Charted position, operating radio channels and
● The AtoN station must be configured with an Name, Charted position, operating radio channels and
dimensions using the ACF and ACE commands.
● The AtoN should be configured to broadcast message 21 using the AAR command. Note that the
slots selected for the AIS AtoN transmissions in FATDMA mode must be reserved by a base station
operating in the area in which the AIS AtoN will be deployed.
operating in the area in which the AIS AtoN will be deployed.
10.2 NMEA0183 / IEC61162 configuration sentences
The following section documents the standardised NMEA0183/IEC61162 sentences used for AIS AtoN
configuration and control.
Please refer to IEC61162-1 (Edition 4) for complete details of the configuration sentence structure.
The configuration sentence formats described in this section are used to both configure the device and as the
response format from the device when queried for current status. The query command format is as follows:
configuration and control.
Please refer to IEC61162-1 (Edition 4) for complete details of the configuration sentence structure.
The configuration sentence formats described in this section are used to both configure the device and as the
response format from the device when queried for current status. The query command format is as follows:
For example the query command $ECAIQ,AAR*21 requests the transceiver output an AAR sentence
containing the currently configured broadcast rates for the AtoN station.
Configuration sentences are communicated using the transceiver USB interface.
containing the currently configured broadcast rates for the AtoN station.
Configuration sentences are communicated using the transceiver USB interface.
10.2.1 AAR - Configure broadcast rates for AtoN station
This sentence assigns the schedule of slots that will be used to broadcast Message 21 and other allowed AIS
AtoN Station messages. It provides the start slot and interval between the slots used for consecutive
transmissions for the message. The AIS AtoN Station should apply the information provided by this sentence
to autonomously and continuously transmit the VDL messages until revised by a new AAR sentence. The AIS
AtoN Station, upon receipt of an AAR Query for this information, will generate sentences for configured
messages providing the current broadcast schedule. New AAR assignments will override existing AAR
assignments.
AtoN Station messages. It provides the start slot and interval between the slots used for consecutive
transmissions for the message. The AIS AtoN Station should apply the information provided by this sentence
to autonomously and continuously transmit the VDL messages until revised by a new AAR sentence. The AIS
AtoN Station, upon receipt of an AAR Query for this information, will generate sentences for configured
messages providing the current broadcast schedule. New AAR assignments will override existing AAR
assignments.
T1
T1+S
T3
T3+S
$--AIQ,ccc*hh<CR><LF>
Sentence formatter of data being requested
(e.g.,AAR)
(e.g.,AAR)
$--AAR,xxxxxxxxx,xx,xx,xx,xx,xxxx,x.x,x,xx,xx,xxxx,x.x,a*hh<CR><LF>
Sentence status flag (see note 7)
Slot interval channel 2 (see note 6)
Start slot channel 2 (see note 5)
UTC minute for channel 2
UTC hour for channel 2
FATMA or RATDMA setup (see note 4)
Slot interval channel 1 (see note 6)
Start slot channel 2 (see note 5)
UTC minute for channel 1
UTC hour for channel 1
Message ID index (see notes 3 & 8)
Message ID (see note 2 & 8)
MMSI (see notes 1 & 8)