This is quite interesting, I wonder if these were loft heros, sounds ok modulation if recorded off air.

https://www.piratearchive.co.uk/bristol ... -Aug81.mp3

https://www.thepiratearchive.net/Castle/

I've never heard of this station but then again I have never lived in Salisbury!
Chris Miles (Pyers Easton) and Roger Vosene (Mark Dezzani) can be found on here https://www.facebook.com/groups/373844343228644