Photo was taken at Byron Heights when it was still 7SU, The Kit being deployed from 303SU on Mt Kent (long before it went to PPQ), via a Stint on Mt Alice by Wokka (Last Sortie was as it was getting quite dark, hence I was able to get the Dusk shot of the Chinook on the main Helipad in the sodium lights (2 second exposure if memory serves)). Radar was a Marconni S259, better known in RAF service as the Radar Type 95, though to the guys on Kent, it was the Flying Pig. It was a scopie nightmare in that it lacked most of the nice to have computer driven display stuff that the Type 94s and 97 had, plus massive side lobes (1/3 of its transmitted power didn't go forward was a figure I heard once), along with huge Sausage shape returns on long range targets.
The T95 was the first RAF radar on the Falklands, one being set up in Ajax Bay in late May/Early Jun 1982.
Make it a sticky then M8.