Radio Invicta was based in Mitcham, a suburb to the South of London. Both Roger Tate and Tony Johns lived in this area.

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Radio Invicta was noted for two hallmarks. Firstly, its original music concept. Whilst other pirates merely emulated existing stations such as the BBC Radio One, Invicta played only soulful black American music.

The second difference was the technical quality. The audio was clean and free from distortion. So much so, that many engineers who worked in broadcasting contacted the station out of interest - some asking to help.


Roy King was more than just a DJ. A wireman with a telecoms company, he helped construct the Invicta studio mixer

The studio underwent many changes. Barry Stone in the 'open plan' version of 1972
Thus xxxxxx xxxx helped the station. He ran a successful broadcast engineering company, renowned for systems peripherals. He designed a stereo encoder for In-victa (and other pirates) followed by a UHF link transmitter, variable emphasis limiter and a whole heap of other techno-goodies.

Invicta was also aided by xxxxx xxxxx who went on to become a station engineer for one of London's original ILR commercial stations.

Radio Invicta entered the 80's with technology that was akin to professional BBC local radio. Programmes were recorded on open reel tape, jingles were sourced from cartridge and during live broadcasts there were even live bulletins stolen 'off air' from IRN (Independent Radio News).

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