Many thanks to SWLing Post contributor, Paul Evans, who writes:
Interesting article on the new monument to radar between Daventry and Towcester in Northamptonshire, UK.
Legend has it that this was conducted around 25-28 MHz, which was the very top end of higher power RF at the time.
The location sits closer to Towcester, although the event is always quoted as having taken place at Daventry (the source, not the receiver).
It’s fascinating that Plessey Research Caswell was set up almost immediately, not very far away and was heavily involved in radar and other solid-state research through to the 1990s.
[Disclosure: the author (Paul) worked at Plessey Caswell and was Two Terminal device Manager at Plessey Microwave, Towcester in the 1980s]
Many thanks, Paul, for sharing this fascinating bit of history.