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What time do we have to re-tune?



 
 
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  #1  
Old February 4th 12, 09:06 AM posted to uk.tech.digital-tv
Graham Murray
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Posts: 145
Default What time do we have to re-tune?

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.
  #2  
Old February 4th 12, 09:34 AM posted to uk.tech.digital-tv
Davey
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Posts: 422
Default What time do we have to re-tune?

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.
  #3  
Old February 4th 12, 10:26 AM posted to uk.tech.digital-tv
PeterC
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Posts: 363
Default What time do we have to re-tune?

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
  #4  
Old February 4th 12, 10:32 AM posted to uk.tech.digital-tv
Mark Carver
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Posts: 5,606
Default What time do we have to re-tune?

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
  #5  
Old February 4th 12, 10:40 AM posted to uk.tech.digital-tv
Mark Carver
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Posts: 5,606
Default What time do we have to re-tune?

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
  #6  
Old February 4th 12, 02:51 PM posted to uk.tech.digital-tv
PeterC
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Posts: 363
Default What time do we have to re-tune?

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
  #7  
Old February 5th 12, 05:16 AM posted to uk.tech.digital-tv
Brian Gaff
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Posts: 3,598
Default What time do we have to re-tune?

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.



  #8  
Old February 5th 12, 12:39 PM posted to uk.tech.digital-tv
Mark Carver
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Posts: 5,606
Default What time do we have to re-tune?

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
  #9  
Old February 5th 12, 02:52 PM posted to uk.tech.digital-tv
Andy Champ[_2_]
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Posts: 603
Default What time do we have to re-tune?

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
  #10  
Old February 5th 12, 02:55 PM posted to uk.tech.digital-tv
Doctor D
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Posts: 982
Default What time do we have to re-tune?



"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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