diff --git a/www/AIVDM.txt b/www/AIVDM.txt index c2ea6f4..8c15d24 100644 --- a/www/AIVDM.txt +++ b/www/AIVDM.txt @@ -74,7 +74,7 @@ Together, the the IALA Technical Clarifications at <> and the Coast Guard's AIS pages at <> describe AIS message payloads type 1-24 almost completely. Certain specialized binary messages of types 6 and 8 defined by the International Maritime Organization are -described in < and <>. The detail information on +described in <> and <>. The detail information on payload formats in this document is mostly derived from these public sources. @@ -433,7 +433,7 @@ Classes 12 and 14 are used for safety-related text messaging. In practice, message types other than 1, 3, 4, 5, 18, and 24 are unusual or rare; many AIS transmitters never emit them. As of -November 2009, an overnight capture of a full feed from <<>> +November 2009, an overnight capture of a full feed from <> shows no type 25 or type 26 messages at all. An MMSI is a Mobile Marine Service Identifier, a unique 9-digit ID for @@ -919,7 +919,7 @@ different widths for the latitude, longitude, and current-speed fields |70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) | | | | |1 = retransmitted |71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 32 +|72-87 | 16 |DAC/FID | |DAC = 001 FID = 14 |88-91 | 4 |Month |month |1-12; 0 = N/A (default) |92-96 | 5 |Day |day |1-31; 0 = N/A (default) |97-123 | 27 |Latitude |lat |Signed: unit minutes * 0.001 @@ -1061,9 +1061,9 @@ bit is on. |127-131 | 5 |Hour |hour |0-23; 24 = N/A (default) |132-137 | 6 |Minute |minute |0-59; 60 = N/A (default) |138-138 | 1 |Services Availability|availability|0 = services types unknown -| | | | |1 = services types are known +| | | | |1 = services types are known |139-140 | 2 |Agent |agent |Service status value -|141-142 | 2 |Bunker/fuel| |fuel |Service status value +|141-142 | 2 |Bunker/fuel |fuel |Service status value |143-144 | 2 |Chandler |chandler |Service status value |145-146 | 2 |Stevedore |stevedore |Service status value |147-148 | 2 |Electrical |electrical |Service status value @@ -1233,10 +1233,10 @@ A message 6 subtype. DAC = 001 FID = 28. Variable length: 204-1029 bits. | | | | |262,143 = not available = default |144-148 | 5 | |waycount |Waypoint count (1-16) | | | | |Values 17-31 are not used -|149-176 | 28 |Longitude |lon |Signed: unit minutes * 0.001 +|149-176 | 28 |Longitude |lon |Signed: unit minutes * 0.0001 | | | | |181000 = N/A (default) | | | | |E positive, W negative -|177-203 | 27 |Latitude |lat |Signed: unit minutes * 0.001 +|177-203 | 27 |Latitude |lat |Signed: unit minutes * 0.0001 | | | | |91000 = N/A (default) | | | | |N positive, S negative |==============================================================================