So first report in a long time. Have been driving past this place almost daily for about a month, finally got round to checking it out.
Opened in 1926 as a beam transmitter (originally to Canada!) station then transferred to HF broadcast sometime in the 60's. Out of use since 2002 it narrowly missed demolition when the new a390 was built. Security would have been tight in its time, that fence means business and you can see the remnants of a high end security system.
It's been gutted inside, but has suffered very little vandalism and is a good mooch if you're close. The amount of emergency ambulance call buttons is insane, they really are everywhere. All shot freehand at ISO800 as my tripod broke the moment I opened it!