Do you recall BEFORE the pirates? Only 'pop' music was 'Radio Luxembourg' (The Great 208) (Your Station of the Stars.)
And even then you had to wait until 8-00pm (or was it 8-30?) for the English Language broadcasting to begin.
"Horace Batchelor........ That's Keynshan, spelled 'K'. 'E', 'Y', ......................Bristol!"
I think Caroline was broadcasting off the South East Coast before it moved to Liverpool Bay.
And the Dutch Broadcaster which sunk after being fire-bombed from a passing high-speed launch, (I think circa 1972). I wonder which nation's spooks pulled that one off?