Comment by KWxIUElW8Xt0tD9
5 years ago
I was able to observe in a tugboat in a major harbor once -- amazing technology. Not just the propulsion -- they have displays that show where the ships are and where they are headed.
5 years ago
I was able to observe in a tugboat in a major harbor once -- amazing technology. Not just the propulsion -- they have displays that show where the ships are and where they are headed.
That’s AIS which is standard on all commercial ships and optional, AIS-B, on pleasure craft. It’s transmitted on channel 70 VHF. You can get the same information from a site lie MarineTraffic.com or build your own receiver from rtlsdr library and a cheap tv receiver.