Informative comment Brian. I was curious if this was
a global trend, maritime comm's seeking "private links"
outside of the official maritime channels.
Today they are working on resolving some type of winch
problem on one of their vessels. Trying to avoid returning
to " Dutch " for repairs. Clearly they are referring to
Dutch Harbor, Alaska on the Aleutian Chain.

Strong Signals to all ....
de Rf Probe