Ha, my old mate Colin ... in the days when you could have a fg off SATCO
ISTR I was nearly posted there [or one of the other Arabian sand-holes] until RAF PMC realised I hadn't [yet] done the GCA course
Colin was/is indeed a consummate professional, with whom I had the pleasure to work with on several occasions [in more civilised circumstances!]
IIRC, the ACR7 was actually, originally, a ship's navigation radar which 'inverted' for ATC use.