Thread: AM Radio fading into history
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Old 07-02-2023, 22:35   #22
nodrogd
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Re: AM Radio fading into history
Quote:
Originally Posted by Rillington View Post
In the USA there were stereo broadcasts on AM (MW and not LW as radio in America didn't use long wave). I wonder if it would have worked in the UK and if so, if it might have extended the lifespan of AM, and maybe stereo broadcasts might have been very helpful to the gold AM stations, Virgin 1215 and Atlantic 252.
It was tested by the IBA in the early 1990s (an ex school friend/work colleague who worked for the IBA was involved in the Foxhall Heath C-QUAM tests) & was successful. However, as with most new technology it was expensive kit & with better quality available on FM, plus the release of more frequencies in the upper sub-band up to 108Mhz it never took off.

An explanation of how the system worked went out in the IBA weekly “digest” for the TV & Radio trade at the time, a copy of which is on YouTube:
https://www.youtube.com/watch?v=Tg3X6dVAYBs
Last edited by nodrogd; 07-02-2023 at 22:44.
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