When you say "transmitter shut down" - you need to remember that BBC 1, BBC 2, ITV and Channel 4 in 1985 all shared one transmitter for every region - all four channels would be transmitted from one transmitter shared. E.g. BBC 1 would close down most week nights at 12.15am and if they "shut down" the transmitter, then Thames Television in London would be knocked off air. Wording is important here.
They don’t share transmitters. They share transmitter sites and masts, but there were separate transmitters for each channel in the buildings at the base of the mast all attached to their own antennas at the top. Now each transmitter in those buildings transmits a different digital multiplex. And they didn’t share one transmitter for every region. That only applies to London (after Bluebell Hill was switched to TVS), Channel TV, HTV West and Granada. The rest all had more than one main transmitter. Your lack of knowledge of transmitter technology is showing!
@@stickytapenrust6869 An example - I was born in Londonderry, and their transmitter at Sheriff's Mountain broadcast BBC One NI, BBC Two NI, UTV and Channel 4 when I was growing up. From one transmitter. Originally Sheriff's Mountain was only used to transmit BBC One NI VHF 405 line from December 18th 1957 - UHF was added in 1971 when BBC 2 launched from the transmitter, however in 1975 UTV and colour UHF launched from the transmitter. I was told that this was the case, one transmitter used - in fact the old ITA and later IBA would have preferred to share transmitters with the BBC, but this was not possible back then.
@@johnking5174 One transmitter *site* was used. Like so many others do, you’re confusing “transmitter” with “transmitter mast”. It’s not even *possible* in any shape or form to have one transmitter transmitting on different frequencies at the same time.
@@johnking5174 This site only has external shots of the Londonderry/Derry transmitter, but as it’s a high-power relay, it would have used similar kit to what was used at Reigate. Note how each bit of kit photographed only serves one channel? (The IBA equipment was in a separate building to facilitate demarcation between the two). tx.mb21.co.uk/gallery/gallerypage.php?txid=4&pageid=1453
@@stickytapenrust6869 On a side note, off topic here, but what region are you in, and which region did you grew up in? Love looking at the clips you have, as it is a great treasure of memories from the classic era of TV
![[720p/50p] ITV Thames | closedown and transmitter shutdown | 25th March 1981](http://i.ytimg.com/vi/Mc-A2nrWLew/mqdefault.jpg)
Thanks. Enjoy the Night Thoughts that you share.
2:04 Shaun Scott, aka DI Chris Deakin in The Bill is in the Cafe Hag advert.
Was Elaine Paige ALWAYS on TV-am?
When you say "transmitter shut down" - you need to remember that BBC 1, BBC 2, ITV and Channel 4 in 1985 all shared one transmitter for every region - all four channels would be transmitted from one transmitter shared. E.g. BBC 1 would close down most week nights at 12.15am and if they "shut down" the transmitter, then Thames Television in London would be knocked off air. Wording is important here.
They don’t share transmitters. They share transmitter sites and masts, but there were separate transmitters for each channel in the buildings at the base of the mast all attached to their own antennas at the top.
Now each transmitter in those buildings transmits a different digital multiplex.
And they didn’t share one transmitter for every region. That only applies to London (after Bluebell Hill was switched to TVS), Channel TV, HTV West and Granada. The rest all had more than one main transmitter.
Your lack of knowledge of transmitter technology is showing!
@@stickytapenrust6869 An example - I was born in Londonderry, and their transmitter at Sheriff's Mountain broadcast BBC One NI, BBC Two NI, UTV and Channel 4 when I was growing up. From one transmitter. Originally Sheriff's Mountain was only used to transmit BBC One NI VHF 405 line from December 18th 1957 - UHF was added in 1971 when BBC 2 launched from the transmitter, however in 1975 UTV and colour UHF launched from the transmitter. I was told that this was the case, one transmitter used - in fact the old ITA and later IBA would have preferred to share transmitters with the BBC, but this was not possible back then.
@@johnking5174 One transmitter *site* was used. Like so many others do, you’re confusing “transmitter” with “transmitter mast”. It’s not even *possible* in any shape or form to have one transmitter transmitting on different frequencies at the same time.
@@johnking5174 This site only has external shots of the Londonderry/Derry transmitter, but as it’s a high-power relay, it would have used similar kit to what was used at Reigate.
Note how each bit of kit photographed only serves one channel? (The IBA equipment was in a separate building to facilitate demarcation between the two).
tx.mb21.co.uk/gallery/gallerypage.php?txid=4&pageid=1453
@@stickytapenrust6869 On a side note, off topic here, but what region are you in, and which region did you grew up in? Love looking at the clips you have, as it is a great treasure of memories from the classic era of TV