A note on security calls on the radio. As a commercial operator for 9 years, many of the calls coming from pleasure boats were very frustrating to listen to. The people making these calls did not understand that airtime is limited and that they cannot make calls almost constantly on the radio. Some of the calls went on for close to a minute and were filled with useless information then repeated every 10 minutes.
The purpose of making the call on the radio is to alert others that you are transiting a high traffic area and to establish contact with targets with a close CPA if necessary. Unless someone is plotting you on a GPS interfaced radar, reading out coordinates is pretty much pointless, .... No one ever takes the time to plot each vessel position as it is called out on the radio and if no geographic position is given, they don't even know if the vessel calling is anywhere nearby or not. ....
I apologize for the rant of radio etiquette but it can be extremely frustrating to be unable to establish radio contact with a target because someone in a 25' center console is making a 45 second security call(trust me, this has happened a lot). I have worked on the boats that are not maneuverable and keep working even when it is foggy and we do our best not to run pleasure boaters down but everyone needs to think of the big picture rather than their 300' bubble of visibility. I sail for pleasure as well and sound fog signals and listen to the radio but I don't give a call unless crossing a major channel or something like that.
The vessels that really matter are things like tugs and tows or freighters. Things that move quickly and are not maneuverable should be given the airtime by the pleasure boaters. ...
This seems a very fine advise to me.
I share Klemīs opinion.
Perhaps I can ad something, regarding ships and pleasure boats:
You can always easily see on the radar a freighter or a ferry, but the opposite is not always true. Sometimes, sailing with waves of 3 or 4 meters, a sailing boat is nothing more than an intermittent weak signal.
If I have a collision course with something big that maintains a steady course, I will change course at 2 or 3 miles of distance. If you think that you have plenty of time remember that some ferries go at 30K (and most of them will not go slower in the fog) and that means you have around 5 minute till collision point .
Only if after doing this I am still in a collision course (because the ship had also changed course) I will try a call on channel 16 to know about his intentions. And I will not wait for an answer to change again my course and this time in a radical way, something like 45š, till I am sure I am not in a collision course anymore.
Playing with the big boys is a bad idea.