Difference between revisions of "AIS"

Revision as of 07:21, 26 September 2025

AIS sources

webSDR

Many stations allow AIS tuning, see Map of SDR Receivers. On Windows, virtual audio cable and AISmon works well.

• Bremerhaven, DE http://dl1bir.spdns.de:8073/#freq=161975000,mod=wfm,sql=-150
• Vlissingen, NL http://sdrpa3bbl.duckdns.org:1500/#freq=161975000,mod=wfm,sql=-150
• London, GB http://maritime.nkpa.co.uk:8073/#freq=161975000,mod=wfm,sql=-150
• Edinburgh, GB https://websdr2.scotlandchat.co.uk/#freq=161975000,mod=wfm,sql=-150
• ...

NMEA

• https://www.aishub.net stopped NMEA stream mid 2024

Norway

Stream is filtered. Missing message types: 4/...

• https://www.kystverket.no/en/sea-transport-and-ports/ais/access-to-ais-data/
  • tcp://153.44.253.27:5631

Florida

Reception area is limited.

• http://ssia-ais.erau.edu/
  • tcp://ssia-ais.erau.edu:4000

API

• https://www.aishub.net
• https://aisstream.io
  • wscat -c wss://stream.aisstream.io/v0/stream -w 300 -x '{"APIKey": "***", "BoundingBoxes": [[[-180, -90],[180, 90]]], "FilterMessageTypes":["SafetyBroadcastMessage","LongRangeAisBroadcastMessage","BinaryBroadcastMessage","GroupAssignmentCommand"]}'
• https://kx1t.com/ais
  • curl -s https://kx1t.com/ais/api/sse |grep 'data:' | awk '{print $2}'
• https://mgoorman.nl
• http://anz-ais.ddns.net:8100
• https://www.aiscatcher.org/wageningen/
• https://big-g.co.uk/ais/
• ...

Historic

• ...

AIS decoders

Ais Decoder

• https://arundaleais.github.io/docs/ais/ais_decoder.html (WIN)

gpsdecode

• https://gpsd.gitlab.io/gpsd/gpsdecode.html
• nc 153.44.253.27 5631 | gpsdecode | grep '"type":8'

{"class":"AIS","device":"stdin","type":8,"repeat":0,"mmsi":257057800,"scaled":true,
"dac":200,"fid":10,"vin":"00000000","length":215,"beam":60,"shiptype":8440,"shiptype_text":"Illegal ship type value.",
"hazard":5,"hazard_text":"Unknown","draught":0,"loaded":0,"loaded_text":"N/A (default)",
"speed_q":false,"course_q":false,"heading_q":false}

{"class":"AIS","device":"stdin","type":8,"repeat":0,"mmsi":215349000,"scaled":true,"dac":1,"fid":27,"linkage":90,"sender":0,"rtype":5,"rtype_text":"Ship route plan","start":"00-00T24:60Z","duration":262143,"waypoints":[{"lon":7.107972,"lat":62.844255},{"lon":7.112132,"lat":62.848032}]}

{"class":"AIS","device":"stdin","type":8,"repeat":0,"mmsi":215349000,"scaled":true,"dac":1,"fid":29,"linkage":90,"text":"LESSREMMAN - ELNES (VIA RORVIK; OUTSIDE) CAPT YURI"}

• nc ssia-ais.erau.edu 4000 | gpsdecode | -e grep '"type":8' -e grep '"type":27'

{"class":"AIS","device":"stdin","type":27,"repeat":0,"mmsi":368429323,"scaled":true,"status":"Not defined","accuracy":true,"lon":-81.0,"lat":29.2,"speed":0,"course":511,"raim":true,"gnss":false}

{"class":"AIS","device":"stdin","type":8,"repeat":0,"mmsi":369493715,"scaled":true,"dac":366,"fid":56,"data":"256:a83746ce99bb9edbd3eebb88bb7dcecba01df41d94f9397136c0c97eb4af8d69"}

pyais

• https://github.com/M0r13n/pyais
• pipx install pyais
• pipx ensurepath
• nc 153.44.253.27 5631 | ais-decode --json | grep '"msg_type": 8'

{"msg_type": 8, "repeat": 0, "mmsi": 257057800, 
"dac": 200, "fid": 10, "vin": "00000000", "length": 21.5, "beam": 6.0, "shiptype": 8440, 
"hazard": 5, "draught": 0.0, "loaded": 0, 
"speed_q": false, "course_q": false, "heading_q": false}

{"msg_type": 8, "repeat": 0, "mmsi": 215349000, "dac": 1, "fid": 27, 
"data": "FwFAGPP//3ggjnij9kTwQREIR+t9QIGPWI/RpYEAV0kfnN4B/oNCP0lbA/56ZH7oMAfMqQkAPXgPnOUSBujgIEAnJCF1QEOc0Uhdt0CLKQCQxYXBGjYZIXqkAkLbgkK4VwS3FHSHEE4JngLpEMz8"}

{"msg_type": 8, "repeat": 0, "mmsi": 215349000, "dac": 1, "fid": 29, "data": "FwUw4VOC2BYVIQEyChYkGAdIlCnI"}

aisdecode

• https://github.com/madpsy/aisdecode/
• ./aisdecode-linux-amd64 -log-all-decodes decoded

AIS-catcher

• input: https://docs.aiscatcher.org/configuration/input/tcp/
• output: https://docs.aiscatcher.org/configuration/output/console/
• web view: https://docs.aiscatcher.org/configuration/output/web-viewer/
• AIS-catcher -t txt://153.44.253.27:5631 -o 5 -N 8101 GEOJSON false MESSAGE true REALTIME false