What is AIS?
AIS is initially intended to help ships avoid collisions, as well as assisting port authorities
to better control sea traffic. AIS transponders on board vessels include a GPS (Global Positioning System) receiver,
which collects position and movement details. It includes also a VHF transmitter, which transmits periodically
this information on two VHF channels (frequencies 161.975 MHz and 162.025 MHz – old VHF channels 87 & 88) and
make this data available to the public domain.
The Point Souttar/Yorketown Radio Base & Port Victoria HQ both have AIS monitors that contributes to
www.marinetraffic.com and shows on the map below
(You can hold your cursor over a ship to get it's name or click on it for further info)