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| uk.tech.digital-tv (Digital TV - General) (uk.tech.digital-tv) Discussion of all matters technical in origin related to the reception of digital television transmissions, be they via satellite, terrestrial or cable. Advertising is forbidden, with no exceptions. |
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#1
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With the upcoming DSO at Hannington next week, what time does the actual
changeover happen? Obviously re-tuning too early will be pointless and leaving it too late runs the risk of people with PVRs missing planned recordings. |
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#2
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On Sat, 04 Feb 2012 10:06:03 +0000
Graham Murray wrote: With the upcoming DSO at Hannington next week, what time does the actual changeover happen? Obviously re-tuning too early will be pointless and leaving it too late runs the risk of people with PVRs missing planned recordings. Tacolneston DSO retune started just after midnight, at which point we gave up watching. Retuned in the morning, about 8-ish, and it was ready. No idea what happened when between those times, but correspondence here suggested that it may have taken several hours. -- Davey. |
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#3
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On Sat, 4 Feb 2012 10:34:03 +0000, Davey wrote:
On Sat, 04 Feb 2012 10:06:03 +0000 Graham Murray wrote: With the upcoming DSO at Hannington next week, what time does the actual changeover happen? Obviously re-tuning too early will be pointless and leaving it too late runs the risk of people with PVRs missing planned recordings. Tacolneston DSO retune started just after midnight, at which point we gave up watching. Retuned in the morning, about 8-ish, and it was ready. No idea what happened when between those times, but correspondence here suggested that it may have taken several hours. IIRC from Oxford, main transmitters are about 7 - 8 am and relays are late lunchtime. When does Hannington go through COM power-up? It was suggested here that there might be enough power for me to see it: I'm on Oxford in almost a straight line to Hannington, although the latter is another 50km away making it about 90-ish km. -- Peter. The gods will stay away whilst religions hold sway |
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#4
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Graham Murray wrote:
With the upcoming DSO at Hannington next week, what time does the actual changeover happen? Obviously re-tuning too early will be pointless and leaving it too late runs the risk of people with PVRs missing planned recordings. If it follows the pattern of other DSOs, BBC 2 analogue will vanish forever at the first gap in programmes after midnight, so in this case 00:05hrs on Wed 8th (late Tue!). The existing low power BBC mux will vanish shortly afterwards (for ever). In Hannington's case the lower power muxes use a different transmitting aerial, to the one that will be used for the high power services after DSO, so I wouldn't expect the other five muxes to be interrupted on the DSO 1 stage this week. The other main analogues probably will also disappear for a while, because they are using the same Tx aerial that will be employed for the post DSO services. C5 analogue uses a separate aerial, so I wouldn't expect any interruptions to that. Before 6am on Weds 8th the new high power BBC mux should be running (though typically it's on by about 2am). Unless you're a saddo like me, just go to bed, and run a rescan next morning any time after 6am. http://www.digitaluk.co.uk/transmitternetwork/tools__and__resources/almanac/installer_newsletters_transmitter_groups2009_pdfs/Meridian_A_Hannington_1MO_130112_Final.pdf -- Mark Please replace invalid and invalid with gmx and net to reply. www.paras.org.uk |
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#5
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PeterC wrote:
When does Hannington go through COM power-up? It was suggested here that there might be enough power for me to see it: I'm on Oxford in almost a straight line to Hannington, although the latter is another 50km away making it about 90-ish km. PSB 1 will be at full power (50kW) from Feb 8th PSB 2/3 will be at full power (50kW) from Feb 22nd The COMs go to full power (25kW) also on Feb 22nd, but remain on the existing directional aerial until London's DSO in April. From April 4th COM 5 switches to the new omni-directional aerial (which will improve reception to the east) and on April 18th COM 4 and 6 follow. The actual power increases are not huge, 4dB for PSB1-3, and COM 5/6, 1dB for COM 4. It's the lifting of the eastward power restriction, that will be the most significant thing about Hannington's DSO -- Mark Please replace invalid and invalid with gmx and net to reply. www.paras.org.uk |
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#6
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On Sat, 04 Feb 2012 11:40:17 +0000, Mark Carver wrote:
PeterC wrote: When does Hannington go through COM power-up? It was suggested here that there might be enough power for me to see it: I'm on Oxford in almost a straight line to Hannington, although the latter is another 50km away making it about 90-ish km. PSB 1 will be at full power (50kW) from Feb 8th PSB 2/3 will be at full power (50kW) from Feb 22nd The COMs go to full power (25kW) also on Feb 22nd, but remain on the existing directional aerial until London's DSO in April. From April 4th COM 5 switches to the new omni-directional aerial (which will improve reception to the east) and on April 18th COM 4 and 6 follow. The actual power increases are not huge, 4dB for PSB1-3, and COM 5/6, 1dB for COM 4. It's the lifting of the eastward power restriction, that will be the most significant thing about Hannington's DSO Thanks for the figures. Oxford is half the distance and twice the power so should be seen preferentially. It'll be interesting to see if Hannington is picked up - Sandy is, even though 115 deg. off and across a railway bank that's as high as the aerial. The Sammy is well-behaved - asks which transmitter I want and puts those channels first. -- Peter. The gods will stay away whilst religions hold sway |
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#7
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I doubt that can be determined with any degree of accuracy if they do it as
well as certain other regions.. ahem... Brian -- Brian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: __________________________________________________ __________________________________________________ __________ "Graham Murray" wrote in message ... With the upcoming DSO at Hannington next week, what time does the actual changeover happen? Obviously re-tuning too early will be pointless and leaving it too late runs the risk of people with PVRs missing planned recordings. |
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#8
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Brian Gaff wrote:
I doubt that can be determined with any degree of accuracy if they do it as well as certain other regions.. ahem... Have there been problems ? As far as I'm aware, every main Tx so far has had its switchover completed by 6am next morning. Yes, relays take longer, there's a lot to get round to in some areas, but I think without exception they have all been back up and running by 18:00hrs the next day (most before Noon) -- Mark Please replace invalid and invalid with gmx and net to reply. www.paras.org.uk |
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#9
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On 04/02/2012 11:32, Mark Carver wrote:
If it follows the pattern of other DSOs, BBC 2 analogue will vanish forever at the first gap in programmes after midnight, so in this case 00:05hrs on Wed 8th (late Tue!). The existing low power BBC mux will vanish shortly afterwards (for ever). In Hannington's case the lower power muxes use a different transmitting aerial, to the one that will be used for the high power services after DSO, so I wouldn't expect the other five muxes to be interrupted on the DSO 1 stage this week. The other main analogues probably will also disappear for a while, because they are using the same Tx aerial that will be employed for the post DSO services. C5 analogue uses a separate aerial, so I wouldn't expect any interruptions to that. Before 6am on Weds 8th the new high power BBC mux should be running (though typically it's on by about 2am). Unless you're a saddo like me, just go to bed, and run a rescan next morning any time after 6am. http://www.digitaluk.co.uk/transmitternetwork/tools__and__resources/almanac/installer_newsletters_transmitter_groups2009_pdfs/Meridian_A_Hannington_1MO_130112_Final.pdf Thanks Mark, the newsletter has the interesting one: "All masts in the Hannington transmitter group will launch the HD mux, BBC B, at DSO stage two on 22 February 2012." Though I'll have to check signal levels, I'm in the eastern dip. I may have a six-month-old masthead for sale... been in the loft, not out in the snow. Andy |
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#10
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"Mark Carver" wrote in message ... PeterC wrote: When does Hannington go through COM power-up? It was suggested here that there might be enough power for me to see it: I'm on Oxford in almost a straight line to Hannington, although the latter is another 50km away making it about 90-ish km. PSB 1 will be at full power (50kW) from Feb 8th PSB 2/3 will be at full power (50kW) from Feb 22nd The COMs go to full power (25kW) also on Feb 22nd, but remain on the existing directional aerial until London's DSO in April. From April 4th COM 5 switches to the new omni-directional aerial (which will improve reception to the east) and on April 18th COM 4 and 6 follow. How well has this been publicised in the region? I predict much disappointment after 22/2/12 to the east of Hannington when the COMs are still missing. |
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