All posts by Briantist
Below are all of Briantist's postings, with the most recent are at the bottom of the page.
Mark Agius: I have been told that if you never subscribed to Sky HD, the channel numbers are reversed.
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Mike Dimmick: Very interesting. Using a remote control aeroplane as a repeater is unusual.
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Barry: Please see Upgrading from Sky+HD to Freesat+HD | ukfree.tv - 10 years of independent, free digital TV advice to answer all your questions.
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Dave: see Watching the London 2012 Olympics - a guide (part 1) | ukfree.tv - 10 years of independent, free digital TV advice please
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Mark: The official postcode system says you have a good chance of getting all the services from the Wenvoe transmitter with a standard aerial.
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Ian: Thanks for the information. Very interesting, and I agree that they have not made the change in status very clear...
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David: I think the purpose of the new transmitters around the coast of East Anglia is to allow the power level of the main transmitters to be reduced, to prevent the signals leaking to other countries.
As I don't have the radiation pattern for this mast, it quite possible that the signal is being targetted at specific areas, causing the effect you have found.
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Wednesday 25 July 2012 7:27PM
I just note from BBC - About the BBC: Different ways to listen and watch the BBC's Olympics 2012 coverage :
"For 3D to work on BBC HD, we have to broadcast it at "1920 horizontal resolution", ie, with 1920 pixels across the width of the screen. Usually we broadcast conventional HD at 1440 resolution on digital terrestrial and digital satellite television, so we make a special change to our settings to broadcast BBC HD at 1920 when we need to do 3D broadcasts.
Making this change involves a fair amount of effort, plus there's always the risk that something goes awry. To minimise the effort and risk, I decided that we should broadcast BBC HD at 1920 for an extended period - from May to September. Then, to be fair to the other HD channels we broadcast in BBC controlled capacity on Freeview HD (BBC One HD, ITV1HD, Channel 4 HD*) we investigated whether we could broadcast all of them at 1920 resolution. I'm delighted to say that thanks to a huge amount of work from some very clever people in BBC Research & Development and our suppliers we can do that this summer. We implemented the changes in May to allow us to offer 3D coverage across the great summer of programming and we have moved BBC One HD on Sky and Freesat to 1920 too.
As regular readers of the BBC's blogs will know, 1920 resolution is something we've been aspiring to for some time so I thought I'd explain a bit about the considerations involved. We have to consider the trade-off between the benefits to our audiences of our being able to fit a whole extra channel into the multiplex (whether on digital terrestrial or digital satellite) versus any perceived picture quality benefits of increasing to 1920 resolution. At present the benefits are most apparent on 3D programming. Thanks to some upgrades of our coder systems along with many other tweaks to the way we multiplex services together, this summer we've been able to achieve 1920 on all the channels, whilst the gains would not have been sufficient to broadcast an additional channel. At the moment there is still a question about whether we'll be able to sustain 1920 resolution for the long term; I'll let you know more news on this when we have it."