Originally Posted by mdbee
Just curious about "...is posted to the Internet by volunteers who have receivers located in fixed positions (often far from water)." I noticed AIS data showing in the Antarctic, are there volunteers there? It seems they would have better things to do than to be feeding data into the Internet. Curious how that works?
Any AIS receiver can output the digital information to another system, so some ships with BGAN or other internet connectivity can re-broadcast signals to marinetraffic or other internet systems.