The coast guard have carefully tuned high gain antennas with very good grounding, also the low loss cabling and low noise kit
Line of sight for RF is often further than we think, but it is still a straight line with a bit of bouncing around.
Nearly 40 years ago then probably, vhf is line of site so direction finding antennas would have to be relatively close
The top of my antenna must be 6m above the waterline? Line of sight. Well at about 10 miles range I cant raise Stokesea any more. It only takes me about 20 minutes to leave him 10 miles behind. That 20 minutes though. It's a watched kettle thing!
You are reaching Stokesea. He is filtering His Incoming!
How am I supposed to stop him getting lost then?
What's a good channel to use for ship to ship comms with a mate. In Spain if that makes any difference.