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| author | Eric S. Raymond <esr@thyrsus.com> | 2011-02-08 16:38:02 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2011-02-08 16:38:02 -0500 |
| commit | a16f594787e67d331f3f1257ae75b69f2f43c64f (patch) | |
| tree | 01c2fd1f85e9c3eb219c4de9921ac3d800d00850 /www | |
| parent | eed1a6acb8df4257a07de097198a709d3d679eeb (diff) | |
| download | gpsd-a16f594787e67d331f3f1257ae75b69f2f43c64f.tar.gz | |
Field length correction.
Diffstat (limited to 'www')
| -rw-r--r-- | www/AIVDM.txt | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/www/AIVDM.txt b/www/AIVDM.txt index a5450de2..c5503857 100644 --- a/www/AIVDM.txt +++ b/www/AIVDM.txt @@ -984,7 +984,7 @@ It would be good defensive implementation for a decoder to accept either. See the <<IMO236>> variant for the meaning of this message. -A message 6 subtype. DAC = 001 FID = 23 in <<IMO289>>. Fixed length, 146 bits. +A message 6 subtype. DAC = 001 FID = 23 in <<IMO289>>. Fixed length, 136 bits. [frame="topbot",options="header"] |============================================================================== @@ -998,16 +998,12 @@ A message 6 subtype. DAC = 001 FID = 23 in <<IMO289>>. Fixed length, 146 bits. | | | | |1 = retransmitted |71-71 | 1 |Spare | |Not used |72-87 | 16 |DAC/FID | |DAC = 001 FID = 16 -|88-110 | 13 |# persons on board |persons |Unsigned integer +|88-100 | 13 |# persons on board |persons |Unsigned integer | | | | |0 = N/A (default) | | | | |8191 = >= 8191 persons. -|111-146 | 35 |Spare | |Not used +|101-135 | 35 |Spare | |Not used |============================================================================== -<<IMO289>> claims this message is 136 bits long, but the field lengths -sum to 146. It would be good practice to accept either length and -ignore trailing padding. - ==== IMO289 Dangerous Cargo Indication ==== See the IMO236 variant for the meaning of this message. |