"Thanks Graham. Think the green "posts" are covered lights that hang over the sides at night to catch calamari or fish. You can see the glow of their lights about twenty miles away they're that bright."
"Hi, regarding your question about empty fields on AIS.
Some info always the same after being entered on initial set up such as Name, Callsign,MMSI, ship type.
Others are fed automatically from other sources such as course, speed and position. Others…"