sinister forest 

Looking across the Ashdown forest towards RGHQ 6.1

This site was originally home to a high-power (600 kW) medium wave broadcasting transmitter, built for the Political Warfare Executive in WWII. This transmitter was purchased in the USA in 1941 and consisted of three 170-kW units connected in parallel. The underground site had been prepared with the assistance of Canadian forces personnel.

After the transmitter closed, the Home Office built RGHQ 6.1 here in 1984-6.

The above information is from www.subbrit.org.uk/rsg/sites/c/crowborough