Love radar scanners. Great things. Plessey ACR 430 at EGNM from about 1970 until 1996 or so, concurrent with a Watchman from 1989 until the present day. From one orange PPI indicator at the back of the VCR in the old days to big bright colour displays now, downstairs from the VCR. Plus a remote SSR feed.
It seems a lot of airfields have had more than one radar scanner going at once. EGCC had a Marconi 264 at the 24 end with a Cossor ACR6 at the 06 end, if I remember correctly. Now just the stripey Watchman on it's enormous tower.
Did Church Fenton have the ACR 430 as well ? Seem to remember it did.