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Post by John Green on Sept 22, 2020 23:03:31 GMT
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Post by richardwoods on Sept 24, 2020 17:26:17 GMT
I actually played a very small part in this. I work as an Openreach Engineer in Mid Wales, & along with a colleague, I highlighted the interference problem that got escalated to the specialist team that tracked the source of the problem down to the TV.
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Post by Peter Stirling on Sept 27, 2020 8:47:14 GMT
Good old VHF TV with AM sound...quite possible to get a melody on your TV, bike and car ignitions crackling -boiler lighting up Ena Sharples spouting a taxi or police request LOL |
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Post by richardwoods on Sept 27, 2020 10:30:51 GMT
And not forgetting the warbling noise caused by 405 line sets on 1500m long wave. Not as bad interference wise as it is on AM as today with LED bulbs, switch mode power supply’s & some digital circuits though.
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Post by Richard Marple on Sept 27, 2020 12:37:42 GMT
Some of the off Dr Who recordings had some noises associated with 405 line sets, probably the line whistle.
One of the home tapers lived in Exeter & the sound from French TV would occasionally be faintly heard.
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RWels
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Post by RWels on Sept 27, 2020 15:33:50 GMT
I wonder if that TV isn't for sale?  |
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Post by Alan Hayes on Sept 27, 2020 15:58:39 GMT
Some of the off Dr Who recordings had some noises associated with 405 line sets, probably the line whistle. One of the home tapers lived in Exeter & the sound from French TV would occasionally be faintly heard. It's The Massacre particularly that (ironically!) suffers from cross-channel interference from French television, IIRC. As for this poor pensioner's old TV, surely the least that the broadband supplier could do was buy him / her a modern set. Would be a nice bit of (almost) free publicity for them. |
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Post by richardwoods on Sept 27, 2020 17:26:24 GMT
I wonder if that TV isn't for sale? It came off a certain auction site apparently...... |
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Post by richardwoods on Sept 27, 2020 17:27:58 GMT
Some of the off Dr Who recordings had some noises associated with 405 line sets, probably the line whistle. One of the home tapers lived in Exeter & the sound from French TV would occasionally be faintly heard. It's The Massacre particularly that (ironically!) suffers from cross-channel interference from French television, IIRC. As for this poor pensioner's old TV, surely the least that the broadband supplier could do was buy him / her a modern set. Would be a nice bit of (almost) free publicity for them. To quote Francis Urquart, “you might think that, I couldn’t possibly comment”. |
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RWels
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Post by RWels on Sept 28, 2020 13:12:57 GMT
I wonder if that TV isn't for sale? It came off a certain auction site apparently...... But seriously, the technical side of the story is vague. I had heard of EMP, but not of SHINE which seems to have, short distance at least, nearly the same effect. Google SHINE and the first thing you find is the article you came from. It can't be the only TV of that ype still in operation? |
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Post by richardwoods on Sept 28, 2020 17:35:31 GMT
It came off a certain auction site apparently...... But seriously, the technical side of the story is vague. I had heard of EMP, but not of SHINE which seems to have, short distance at least, nearly the same effect. Google SHINE and the first thing you find is the article you came from. It can't be the only TV of that ype still in operation? This was down to a faulty power supply (component failure) in the TV rather than the type or model, emitting severe interference on AM, both back down the overhead mains supply & by direct radiation. This manifested in severe erroring, overloading the error correction on the broadband services and making the dynamic line management wind down the broadband speeds to, in effect, nothing. |
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Post by richardwoods on Sept 28, 2020 17:44:38 GMT
Don’t get too hung up on SHINE & REIN. They are just industry anacronyms describing interference that typically causes problems for RF telecom services.
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RWels
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Post by RWels on Sept 28, 2020 19:15:40 GMT
But seriously, the technical side of the story is vague. I had heard of EMP, but not of SHINE which seems to have, short distance at least, nearly the same effect. Google SHINE and the first thing you find is the article you came from. It can't be the only TV of that ype still in operation? This was down to a faulty power supply (component failure) in the TV rather than the type or model, emitting severe interference on AM, both back down the overhead mains supply & by direct radiation. This manifested in severe erroring, overloading the error correction on the broadband services and making the dynamic line management wind down the broadband speeds to, in effect, nothing. Reminds me of the power station in Serbia or thereabouts which made clocks in the whole or Europe run too slow. www.theverge.com/2018/3/8/17095440/europe-clocks-running-slow-electricity-frequency-kosovo-serbia |
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Post by Al Hine on Sept 30, 2020 17:04:38 GMT
I read about this on the BBC News website, the article was so vague! Do they think every reader has no technical understanding? I wanted to know the exact make & model of the TV and the possible causes - at first I thought it might have been a certain Mitsubishi TV from "1968"..... ( wink icon)
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Post by John Green on Sept 30, 2020 19:42:03 GMT
Don’t get too hung up on SHINE & REIN. They are just industry anacronyms describing interference that typically causes problems for RF telecom services. Shine and Rein. The perfect name for a cop show. |
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