It was about 20 years ago that I met Freddie, at his home in Barking, to interview him about his time with Radio Caroline. I think I was probably introduced to Freddie by the late Dick Morecraft, who'd also worked at Caroline. 
Have put the interview online, as a tribute, at www.offshoreechos.com

RIP Freddie

@Chris - Thank you so much for sharing the interview, it was so insightful, there were missing parts I had to Dads career that you have helped answer for me which I really appreciate. The tributes from the Caroline family have been great. thanks again.