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Selkirk DSO: It's 64QAM 8k !!



 
 
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  #1  
Old November 6th 08, 12:10 PM posted to uk.tech.digital-tv
Mark Carver
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Posts: 6,528
Default Selkirk DSO: It's 64QAM 8k !!

The answer we've all be waiting for seems to have been confirmed by a
Digital Spy poster.

PSB 1 at Selkirk is running at 8k

http://www.digitalspy.co.uk/forums/s...=926418&page=3

(Post 54)
  #2  
Old November 6th 08, 12:34 PM posted to uk.tech.digital-tv
JOHN PORCELLA
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Posts: 58
Default Selkirk DSO: It's 64QAM 8k !!

Does anybody know whether the power level of transmission has now been
raised as a consequence?

John
  #3  
Old November 6th 08, 12:39 PM posted to uk.tech.digital-tv
Mark Carver
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Posts: 6,528
Default Selkirk DSO: It's 64QAM 8k !!

JOHN PORCELLA wrote:
Does anybody know whether the power level of transmission has now been
raised as a consequence?


Yes !!! It's been stated in this group by myself and others ad-infinitum
over the last few years.

Read this link I posted in here 48 hours ago :-
http://www.ofcom.org.uk/tv/ifi/tech/dsodetails/

By the way, Post 56 in the Digital Spy thread I posted is rather ominous !
  #4  
Old November 6th 08, 03:28 PM posted to uk.tech.digital-tv
[email protected]
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Default Selkirk DSO: It's 64QAM 8k !!

On 6 Nov., 12:34, JOHN PORCELLA wrote:
Does anybody know whether the power level of transmission has now been
raised as a consequence?

John


Please note the 8k mode is always better than the
2k mode in relation to impulse robustness -
independently of power level.

Not so for the 64QAM vs 16QAM modulation where
about a 2.5 times stronger signal (+4dB) is needed
to get the reception quality.

The Selkirk signals pre/post DSO.

PSB1 3 - 10 kW 16-64QAM
PSB2 3 - 10 kW 64-64QAM
PSB1 3 - 10 kW 16-64QAM - DVB-T2 Dec 2009.

COM4 3 - 5 kW 16-64QAM
COM4 .5 - 5 kW 16-64QAM
COM4 3 - 5 kW 16-64QAM

Lars

PS! Search a little BEFORE you ask
  #5  
Old November 6th 08, 05:09 PM posted to uk.tech.digital-tv
J G Miller[_4_]
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Posts: 5,296
Default Selkirk DSO: It's 64QAM 8k !!

On Thursday, November 6th, 2008 at 11:10:58h +0000, Mark Carver declared:

PSB 1 at Selkirk is running at 8k


Finally some progress.

Can/has somebody posted a complete lineup of the stations on PSB-1?

Five yes? TeleG probably? BBC Alba maybe not?

And has Five gone from COM-1?
  #6  
Old November 6th 08, 07:45 PM posted to uk.tech.digital-tv
Mark Carver
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Default Selkirk DSO: It's 64QAM 8k !!

J G Miller wrote:
On Thursday, November 6th, 2008 at 11:10:58h +0000, Mark Carver declared:

PSB 1 at Selkirk is running at 8k


Finally some progress.

Can/has somebody posted a complete lineup of the stations on PSB-1?


Did you actually bother to follow the link I provided ?


--
Mark
Please replace invalid and invalid with gmx and net to reply.
  #7  
Old November 6th 08, 09:17 PM posted to uk.tech.digital-tv
Andy Burns[_5_]
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Default Selkirk DSO: It's 64QAM 8k !!

Mark Carver wrote:

J G Miller wrote:

Can/has somebody posted a complete lineup of the stations on PSB-1?


Did you actually bother to follow the link I provided ?


http://i280.photobucket.com/albums/k...ne-selkirk.jpg

Is that BBC1 bitrate just an instantaneous value?

  #8  
Old November 6th 08, 09:21 PM posted to uk.tech.digital-tv
J G Miller[_4_]
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Posts: 5,296
Default Selkirk DSO: It's 64QAM 8k !!

On Thu, 06 Nov 2008 18:45:06 +0000, Mark Carver wrote:

Did you actually bother to follow the link I provided ?


Yes I did.

And I did not see a complete listing of stations there, but
rather a disjointed discussion about somebody who had not
woken up, needed coffee, and was hopping from room to room,
and who posted a link to a DVB application which showed a
cut off list of stations on the multiplex.

  #9  
Old November 6th 08, 09:38 PM posted to uk.tech.digital-tv
Mark Carver
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Posts: 6,528
Default Selkirk DSO: It's 64QAM 8k !!

J G Miller wrote:
On Thu, 06 Nov 2008 18:45:06 +0000, Mark Carver wrote:

Did you actually bother to follow the link I provided ?


Yes I did.

And I did not see a complete listing of stations there, but
rather a disjointed discussion about somebody who had not
woken up, needed coffee, and was hopping from room to room,
and who posted a link to a DVB application which showed a
cut off list of stations on the multiplex.


So you ignored the advice in my post to read Post 54 ? The text body of that
contains what you wanted to know.

--
Mark
Please replace invalid and invalid with gmx and net to reply.
  #10  
Old November 6th 08, 09:56 PM posted to uk.tech.digital-tv
Mark Carver
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Posts: 6,528
Default Selkirk DSO: It's 64QAM 8k !!

Andy Burns wrote:
Mark Carver wrote:

J G Miller wrote:

Can/has somebody posted a complete lineup of the stations on PSB-1?


Did you actually bother to follow the link I provided ?


http://i280.photobucket.com/albums/k...ne-selkirk.jpg


Is that BBC1 bitrate just an instantaneous value?


You get that reading with Stat-Mux channels. It's just the maximum possible,
so in this context is meaningless. Remember that PSB1 mux is being centrally
coded in London, unlike Mux 1 that for Selkirk was coded at BBC Glasgow, so
BBC 1 is certainly not FBR.



--
Mark
Please replace invalid and invalid with gmx and net to reply.
 




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