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Old 15th Jan 2020, 2:52 pm   #11
Welsh Anorak
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Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,916
Default Re: British relay television film

We took over a relay system from a firm called Storeys in the Eighties. We supplied a village of around fifty properties who couldn't receive terrestrial television. We gradually upgraded and renovated the system that had been installed in the Sixties, replacing an old scaffold pole with a custom made mast and equipment cabinet some hundreds of feet up a mountainside with appropriate weather!
The cabinet contained channelised amplifiers and down-converters feeding half a mile of phantom powered cable to the main cabinet, fed with aornd 50v via a massive constant voltage transformer. The signal was then amplified and split four ways for each part of the village, with repeater amplifiers along the way as the furthest property was about a mile away. The signals were then fed to the TVs via an up-converter (Labgear Televerta) at each subscriber's property.
This worked well for many years, and we even were able to install appropriate equipment for S4C (Welsh Channel 4). We didn't think teletext and NICAM stood a chance, but the system took both in its stride.
The nail in the coffin was satellite television and the relaxing of planning rules for dishes. Once half the village had Sky TV it was deemed Council subsidy to us was inappropriate. Much of the sytem is still there - and if anyone wants four rack mounted channelised amplifiers and down converters you've only to ask!
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www.gdelectronics.wales
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