PIRATE radio DJs who set up an illegal station put a 10-foot aerial on top of a block of flats (in Crawley, West Sussex) without anyone noticing.
It was only discovered when Ofcom received complaints after interference with air traffic control systems at Gatwick Airport.
The pirates managed to get through security gates at Robinson House on the High Street and into roof space with access to the roof.
They even fixed a lock onto the back of the door so they could not be disturbed while at work completing the process.
(Click HERE for the full story in the Crawley Observer)