Reply to thread

Message

<blockquote data-quote="Fisty McB" data-source="post: 1117419" data-attributes="member: 389824">In the analogue days, at least, there were backup transmission systems in place at Croydon were Crystal Palace was to suddenly go off-air. AFAIK this system was renewed after DSO so that in the event of a transmission failure at CP, Croydon can kick in with the six main multiplexes.For most of the terrestrial TX sites that serve large urban jungles in the UK, there is usually one nearby site with similar tower/mast heights that's been leftover from the 405 line days (a few of which broadcasted Channel 5 in analogue). Presumably were these to suffer major faults/damage like what has happened at Bilsdale, then these nearby sites could be pressed into emergency use with some rigging. For Sutton Coldfield there's Litchfield, Black Hill -&gt; Kirk O'Shotts, Wenvoe -&gt; St. Hilary, Divis -&gt; Black Mountain etc. however Winter Hill does stand out as not having any transmission station nearby with a similar structure. I'd guess that Saddleworth could be pressed in for Manchester in such a scenario, otherwise a lot of NW England could be knocked into a cocked hat except for the area overspilled by Moel-y-Parc. I'm not sure how well such a service from Holme Moss would work out - a fine location for VHF Bands I &amp; II broadcasts, but IIRC had notable shortcomings for Band III let alone UHF.</blockquote>

[QUOTE="Fisty McB, post: 1117419, member: 389824"] In the analogue days, at least, there were backup transmission systems in place at Croydon were Crystal Palace was to suddenly go off-air. AFAIK this system was renewed after DSO so that in the event of a transmission failure at CP, Croydon can kick in with the six main multiplexes. For most of the terrestrial TX sites that serve large urban jungles in the UK, there is usually one nearby site with similar tower/mast heights that's been leftover from the 405 line days (a few of which broadcasted Channel 5 in analogue). Presumably were these to suffer major faults/damage like what has happened at Bilsdale, then these nearby sites could be pressed into emergency use with some rigging. For Sutton Coldfield there's Litchfield, Black Hill -> Kirk O'Shotts, Wenvoe -> St. Hilary, Divis -> Black Mountain etc. however Winter Hill does stand out as not having any transmission station nearby with a similar structure. I'd guess that Saddleworth could be pressed in for Manchester in such a scenario, otherwise a lot of NW England could be knocked into a cocked hat except for the area overspilled by Moel-y-Parc. I'm not sure how well such a service from Holme Moss would work out - a fine location for VHF Bands I & II broadcasts, but IIRC had notable shortcomings for Band III let alone UHF. [/QUOTE]

Verification