diff options
Diffstat (limited to 'www/AIVDM.txt')
| -rw-r--r-- | www/AIVDM.txt | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/www/AIVDM.txt b/www/AIVDM.txt index 7e2ee803..d70f0c25 100644 --- a/www/AIVDM.txt +++ b/www/AIVDM.txt @@ -1,6 +1,6 @@ = AIVDM/AIVDO protocol decoding = Eric S. Raymond <esr@thyrsus.com> -v1.30, Apr 2011 +v1.31, Apr 2011 This document is mastered in asciidoc format. If you are reading it in HTML, you can find the original at http://gpsd.berlios.de/AIVDM.txt[] @@ -1480,6 +1480,7 @@ broadcast of this message of 12 minutes. |190-191 | 2 |Pressure Tendency |pressuretend|0 = steady | | | | |1 = decreasing | | | | |2 = increasing +| | | | |3 - N/A (default) |192-199 | 8 |Horiz. Visibility |visibility |0-25.0, units of 0.1nm | | | | |>= 250 = N/A (default) |200-208 | 9 |Water Level |waterlevel |-10.0 to +30.0 in 0.1m @@ -1488,18 +1489,19 @@ broadcast of this message of 12 minutes. |209-210 | 2 |Water Level Trend |leveltrend |0 = steady | | | | |1 = decreasing | | | | |2 = increasing -|211-218 | 8 |Surface Current Speed |curspeed |0.0-25.0 knots, units 0.1 knot -|219-227 | 9 |Surface Current Direction |curdir |0-359, degrees fom true north +| | | | |3 - N/A (default) +|211-218 | 8 |Surface Current Speed |cspeed |0.0-25.0 knots, units 0.1 knot +|219-227 | 9 |Surface Current Direction |cdir |0-359, degrees fom true north | | | | |>=360 = N/A (default) -|228-235 | 8 |Current Speed #2 |curspeed2 |0.0-25.0 knots, units 0.1 knot +|228-235 | 8 |Current Speed #2 |cspeed2 |0.0-25.0 knots, units 0.1 knot | | | | |>=251 = N/A (default) -|236-244 | 9 |Current Direction #2 |curdir2 |0-359, degrees fom true north +|236-244 | 9 |Current Direction #2 |cdir2 |0-359, degrees fom true north | | | | |>=360 = N/A (default) -|245-249 | 5 |Measurement Depth #2 |curdepth2 |0-30m down, units 0.1m +|245-249 | 5 |Measurement Depth #2 |cdepth2 |0-30m down, units 0.1m | | | | |31 = N/A (default) -|250-257 | 8 |Current Speed #3 |curspeed3 |0.0-25.0 knots, units 0.1 knot +|250-257 | 8 |Current Speed #3 |cspeed3 |0.0-25.0 knots, units 0.1 knot | | | | |>=251 = N/A (default) -|258-266 | 9 |Current Direction #3 |curdir3 |0-359, degrees fom true north +|258-266 | 9 |Current Direction #3 |cdir3 |0-359, degrees fom true north | | | | |>=360 = N/A (default) |267-271 | 5 |Measurement Depth #3 |curdepth3 |0-30m down, units 0.1m | | | | |31 = N/A (default) @@ -2244,6 +2246,7 @@ decimeters), and (c) end padding changes from 6 to 10 bits. |191-192 | 2 |Pressure Tendency |pressuretend|0 = steady | | | | |1 = decreasing | | | | |2 = increasing +| | | | |3 - N/A (default) |193-200 | 8 |Horiz. Visibility |visibility |0.1 nautical miles |201-212 | 12 |Water Level |waterlevel |-10.0 to +30.0 in 0.01m | | | | |Subtract 10.0m after scaling @@ -2251,23 +2254,26 @@ decimeters), and (c) end padding changes from 6 to 10 bits. |213-214 | 2 |Water Level Trend |leveltrend |0 = steady | | | | |1 = decreasing | | | | |2 = increasing -|215-222 | 8 |Surface Current Speed |curspeed |0.0-25.0, units 0.1 knot +| | | | |3 - N/A (default) +|215-222 | 8 |Surface Current Speed |cspeed |0.0-25.0, units 0.1 knot | | | | |251 = speed >= 25.1 knots | | | | |255 N/A (default) -|223-231 | 9 |Surface Current Direction |curdir |0-359, deg. fom true north +|223-231 | 9 |Surface Current Direction |cdir |0-359, deg. fom true north | | | | |360 = N/A (default) -|232-239 | 8 |Current Speed #2 |curspeed2 |0.0-25.0 knots, units 0.1 knot +|232-239 | 8 |Current Speed #2 |cspeed2 |0.0-25.0 knots, units 0.1 knot | | | | |251 = speed >= 25.1 knots | | | | |255 N/A (default) -|240-248 | 9 |Current Direction #2 |curdir2 |0-359, degrees fom true north +|240-248 | 9 |Current Direction #2 |cdir2 |0-359, degrees fom true north | | | | |360 = N/A (default) -|249-253 | 5 |Measurement Depth #2 |curdepth2 |0-30m down, units 0.1m -|254-261 | 8 |Current Speed #3 |curspeed3 |0.0-25.0 knots, units 0.1 knot +|249-253 | 5 |Measurement Depth #2 |cdepth2 |0-30m down, units 0.1m +| | | | |31 = N/A (default) +|254-261 | 8 |Current Speed #3 |cspeed3 |0.0-25.0 knots, units 0.1 knot | | | | |251 = speed >= 25.1 knots | | | | |255 N/A (default) -|262-270 | 9 |Current Direction #3 |curdir3 |0-359, degrees fom true north +|262-270 | 9 |Current Direction #3 |cdir3 |0-359, degrees fom true north | | | | |360 = N/A (default) -|271-275 | 5 |Measurement Depth #3 |curdepth3 |0-30m down, units 0.1m +|271-275 | 5 |Measurement Depth #3 |cdepth3 |0-30m down, units 0.1m +| | | | |31 = N/A (default) |276-283 | 8 |Wave height |waveheight|0-25m, units 0.1m | | | | |251 = height >= 25.1m | | | | |255 N/A (default) @@ -3507,3 +3513,7 @@ types 6 and 8. Version 1.30 was revised because M.1371-4 is now a free download. Also, we describe "pilot plugs" and AIS message type 27. We get much more explicit about defaults in IMO236 and IMO289 messages. + +Version 1.31 shortened some C names in the Meterological/Hydrological +messages and fixed typos. + |