Boatnerd Ais

Jun 28, 2011 · ais uses digital radio signals transmitted over vhf maritime channels 87b (161. 975 mhz) and 88b (162. 025 mhz) to broadcast information about a ship including its. Want to know where are the ships now? Just key in any ship's name to see its position on ais map. Discover information and vessel positions for vessels around the world. Search the marinetraffic ships database of more than 550000 active and decommissioned vessels.