I'd find it hard to believe it was used for anything much; even as a satellite. It would be very difficult to transport fuel and spares there, and recovering a bent aircraft would be a nightmare. Anyway, 161 Squadron didn't seem to be too secretive about its main location; 50 miles North of London and almost in sight of the A1.
Then again -
A WWII 'When I were a lad' story here. Last posts.
Norfolk Broads - The Forum - Martham Ferry Boatyard