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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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18th Jul 2007, 1:16 pm | #1 |
Triode
Join Date: Dec 2005
Location: London, UK.
Posts: 25
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The last days of 405
I was always under the impression that 405 line TV officially died out in 1985, but there's a claim on Digital Spy that some very remote areas did not lose 405 until as recently as 1993. Surely that's not true?
http://www.digitalspy.co.uk/forums/s...light=405+1993 |
18th Jul 2007, 1:34 pm | #2 | |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,957
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Re: The last days of 405
Quote:
Actually, there weren't that many small 405 relay transmitters. Most were built with the introduction of the UHF networlk, as the signals didn't travel so well. Possibly there is some confusion with 405 switchoff in the Irish Republic? Paul |
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18th Jul 2007, 1:43 pm | #3 |
Retired Dormant Member
Join Date: Dec 2003
Location: North London, UK.
Posts: 6,168
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Re: The last days of 405
I've never heard that one before. Paul Sherwin's reasoning is correct.
Eire turned off 405 before we did. http://en.wikipedia.org/wiki/405_line http://www.irish-tv.com/405.asp It appears they kept some of the 405 relays running after the main stations were switched off. Presumably by receiving 625 off air and converting to 405 at the relay. |
18th Jul 2007, 2:09 pm | #4 |
Triode
Join Date: Dec 2005
Location: London, UK.
Posts: 25
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Re: The last days of 405
It was the North Donegal relays at Fanad, Moville and Letterkenny. They were not converted to 625 VHF until 1982. Since then they were further switched over to all 625 UHF about 10 years ago with the introduction of TG4, the Irish language TV channel.
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18th Jul 2007, 2:10 pm | #5 |
Dekatron
Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,924
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Re: The last days of 405
Hi
I have a friend in OFCOM and he agrees with Paul - they were surpised to learn that over 16 000 405-only sets were in use at the time! Perhaps they are confusing 405 with VHF wired systems? Glyn |
18th Jul 2007, 10:57 pm | #6 |
Octode
Join Date: Jan 2006
Location: Borough of Gateshead, UK.
Posts: 1,420
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Re: The last days of 405
Agree with all the above. In the UK it was the mains stations which were the last to go in January 1985 where in Eire it was low powered relays. It seems 1983 was the date, rather than 1993!
The attachment shows a list of RTE TV Transmitting stations in January 1982. Note the "TRANSPOSERS (405) at the bottom. Some features on past television, although otherwise excellent in every way, do give inaccurate information at times especially in technical areas. One example is the mention that 405-line transmitters were slowly switched off from the '70s, the last to close being Sutton Coldfield in 1982! Cheers, Brian Last edited by Focus Diode; 18th Jul 2007 at 10:58 pm. Reason: Added attachment |