Ahh,
That would explain the Helensburgh and A82 mentioned in another thread.
I occasionally get to visit that large base near Garelochhead.
Sadly, my MN days are long since numbered - Radio Officers lost out to SatCom and lots of other automated & semi automated comms gear. Spent 15 or so years with various shipping companies, both UK and abroad. Miss the money. Miss the travel, but I believe things are a lot harder now since the likes of 9/11...
Cheers,