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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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21st Feb 2020, 12:53 pm | #21 | |
Nonode
Join Date: Feb 2005
Location: Worcestershire, UK.
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Re: British Heritage Television
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Steve |
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21st Feb 2020, 5:21 pm | #22 | ||
Octode
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Location: Reading/Fakenham, UK.
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Re: British Heritage Television
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21st Feb 2020, 7:16 pm | #23 | |
Nonode
Join Date: Feb 2005
Location: Worcestershire, UK.
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Re: British Heritage Television
Quote:
We read HERE that despite interference results (and propensity for 'ghosting' too?) to the contrary, vertical polarisation was chosen to avoid 'inconvenience'. Certainly, the horizontal 10 ft-odd long aerials needed for Channel B1 would have very droopy. Steve |
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21st Feb 2020, 7:47 pm | #24 |
Pentode
Join Date: Sep 2009
Location: Dundee, UK.
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Re: British Heritage Television
I know this from personal experience as they were used by our local fill-in transmitter around 1965. Quite a bit bigger than channel 3 which was our normal.
Happy days sitting on a roof with the snow swirling through the wind fixing the lashings. Three or four element band 1 were great fun. |
21st Feb 2020, 10:27 pm | #25 |
Dekatron
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Location: Gateshead, Tyne and Wear, UK.
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Re: British Heritage Television
In the North-East of England the BBC1 Weardale 405 line relay transmitter operated on channel 1 with horizontal polarising. In use from 1966 to 1985.
Never seen any Ch1 aerials later and it's likely never will now. DFWB. |
21st Feb 2020, 10:56 pm | #26 |
Pentode
Join Date: Sep 2009
Location: Dundee, UK.
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Re: British Heritage Television
Perth still has loads of channel 3 aerials, why I don’t know since as you say they have been redundant since 1985. Some of these have been up since Kirk of Shotts started and must be a bit dangerous now.
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22nd Feb 2020, 1:43 am | #27 |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
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Re: British Heritage Television
We ended up with a fairly even mix of V & H BI Tx's
https://www.bvws.org.uk/405alive/info/tx_list.html
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22nd Feb 2020, 9:04 am | #28 |
Dekatron
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Re: British Heritage Television
Assuming you mean Band III aerials, I wonder whether some may be getting used (albeit less than optimally) for reception of Band II FM radio reception.
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Mending is better than Ending (cf Brave New World by Aldous Huxley) |
22nd Feb 2020, 10:29 am | #29 | |
Pentode
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Location: Dundee, UK.
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Re: British Heritage Television
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22nd Feb 2020, 10:34 am | #30 | |
Heptode
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Location: London, UK.
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Re: British Heritage Television
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23rd Feb 2020, 12:33 am | #31 | ||
Dekatron
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Location: Greater Manchester, UK.
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Re: British Heritage Television
Quote:
******************************CZ972EaUxhXcjj2t7 Would most of these BI arrays be on Kirk o'Shotts on Ch3? looks like there was a local low power relay on Ch4 vertical from 1964.
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23rd Feb 2020, 11:34 am | #32 |
Pentode
Join Date: Sep 2009
Location: Dundee, UK.
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Re: British Heritage Television
Yes I would say almost all band1 channel 3. The local band1 low power would likely have been horizontal if it was channel4 band 1 surely. There is a block of tenement type housing in Jeanfield Road in Perth which still has over half a dozen big channel3 aerials.
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23rd Feb 2020, 12:43 pm | #33 |
Nonode
Join Date: Feb 2005
Location: Worcestershire, UK.
Posts: 2,534
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Re: British Heritage Television
Anyway, as stated, British Heritage Television is going to be vertical.
Another couple of snippets. Our signal will not be double-sideband but have a vestigial upper sideband (vsb) and the vision modulation of the carrier will be clamped, meaning the sync bottoms will be zero carrier, irrespective of picture content. Steve |
23rd Feb 2020, 2:44 pm | #34 |
Dekatron
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Location: W.Butterwick, near Doncaster UK.
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Re: British Heritage Television
I am sat here on a low power Band 3 405 lines transmitter and monitor receiver. Repaired it a few years ago, might fire it up some time, though not convinced it is much more than a pantry transmitter.
Piece of history anyway.
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23rd Feb 2020, 3:09 pm | #35 |
Nonode
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Location: Worcestershire, UK.
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Re: British Heritage Television
And a third thing, while it occurs to me. There'll be no equalising pulses.
Steve |
24th Feb 2020, 12:50 am | #36 |
Dekatron
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Re: British Heritage Television
Mr Blumlein would have approved.
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26th Feb 2020, 12:34 pm | #37 | ||
Nonode
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Re: British Heritage Television
Quote:
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Simon BVWS member Last edited by Hybrid tellies; 26th Feb 2020 at 12:42 pm. |
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23rd Dec 2023, 7:34 pm | #38 |
Triode
Join Date: Dec 2005
Location: London, UK.
Posts: 25
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British Heritage Television update
The British Heritage Television group have updated the latest news page on their website, they are saying they are looking for a new transmission site as they are not allowed to erect masts on the site they were planning to use. Some tests were radiated, but these were not publicised.
https://405-line.tv/latest-news/ Last edited by Station X; 23rd Dec 2023 at 8:25 pm. Reason: Link added. |