hoi,
en hier dan de komende veranderingen in oktober bij de BBC op astra 28 oost:
transponder 11954 h 2/3 27500 (DSAT 7) wordt eind oktober uitgezet
de BBC gaat een nieuwe transponder (astra 1N Transponder 61) in gebruik nemen
BBC 2 HD is uitgesteld tot volgend jaar
15 oktober:
radiozenders van 10803 h 5/6 22000 en 11954 h 2/3 27500 worden gelijkmatig verdeeld over 10803 h 5/6 22000 en 10788 v 5/6 22000
12 oktober:
BBC streams van 11954 h 2/3 27500 naar 10773 h 5/6 22000
BBC 3/CBBC (110773 h 5/6 22000) en BBC news (10803 h 5/6 22000) naar 10818 v 5/6 22000
BBC ALBA en BBC north east/cumbria (10818 v 5/6 22000) naar 10803 h 5/6 22000
BBC FOUR/CBeebies (10803 h 5/6 22000) en BBC stream (11954 h 2/3 27500) naar 10773 h 5/6 22000
de extra BBC 1 HD zenders zullen starten via de nieuwe astra 1N transponder 61 in dvbs-2
•In the middle of October we will be reducing the number of BBC Red Button video streams on satellite (and cable) to one. This will mean we close our ‘DSat7’ transponder (Astra 2A tp 13).
•Over the next few months we will be launching BBC One HD for the nations of Northern Ireland, Wales and Scotland. They will each be available on terrestrial, satellite and cable platforms. In order to carry these services on satellite we’ll be opening a new transponder (Astra 1N tp 61) which we will be referring to as DSat8.
These changes will affect different people in different ways, and I know from reading your responses to my previous blogs that some of you take issue with the changes, so I wanted to explain the thinking behind the decisions as well as what will be happening from a technical standpoint.
1. BBC Red Button video streams
In November 2010, the BBC Trust published its review of the BBC Red Button and challenged the BBC Executive “to reduce its distribution costs by providing a more consistent level of service across different digital TV platforms”. Accordingly, the BBC’s Delivering Quality First proposals in October 2011 set out a plan to reduce the number of BBC Red Button video streams on satellite and cable from five to one and save the costs of one transponder.
I know that the BBC Red Button service as a whole is very appreciated and used by a wide section of the population, who value the ease of access to text and video at the press of a button. And the BBC is committed to maintaining a vibrant and popular red button service. We have exciting future plans for the BBC Red Button, as my colleague Tom Williams explains on the BBC Internet blog.
What’s happening when?
Turning to the technical changes involved, as I’m sure you can imagine, closing a transponder is not as simple as flicking a switch. There are a number of stages we’ll be working through in the next few weeks. Most of them should be invisible to you but there are a couple of dates in particular to note.
Step 1: Move the TV services
The one remaining BBC Red Button service will move from DSat7 to DSat1 (Astra 1N tp 45) but in order to make this fit and optimise how our more and less capacity-hungry channels are arranged, we need to shuffle some of our TV services around. So in the early hours of 12 October 2012:
• BBC Three / CBBC (DSat1) and BBC News (DSat 2) will move to DSat6 (Astra 1N tp 48)
• BBC ALBA and BBC One North East & Cumbria will both move from DSat6 to DSat2 (Astra 1N tp 47)
• BBC Four / CBeebies (DSat2) and BBC Red Button stream 1 (DSat7) will move to DSat1
Step 2: Move the radio services
On 15 October 2012 we will move our radio services on the Sky platform from DSat2 and DSat7 to be more evenly spread across DSat2 and DSat5 (Astra 1N tp 46). On the 16 October 2012 these changes will take effect on Freesat and Virgin Media. As each of the radio services moves there will be a small outage of a couple of minutes.
This will also mean that our radio services move from a European beam to a UK spot beam as DSat7 is the last of our European beam transponders. We use a UK beam for our TV services, so the radio services will be as available in the UK as our TV services. But it does mean that the radio services will no longer be receivable across much of mainland Europe. I’ve no doubt that some readers of this blog will be disappointed by this news. But I’m afraid European-beam transponders are not cost effective for us. We broadcast our services for UK audiences “in the clear” or unencrypted (which is what makes Freesat possible) and so for rights reasons we are limited in terms of the services that we are able to broadcast on a European beam. The BBC’s radio station for listeners outside the UK is the BBC World Service, and it is widely available throughout the world. In Europe you can receive the World Service in many different ways including on satellite from Eutelsat Hot Bird 8 at 13° East. It’s also available online 24 hours a day via the listen live link from the BBC World Service homepage.
On 15 October 2012 we will also stop using the four other BBC Red Button streams.
Step 3: Close the transponder
DSat7 will then close at the end of October.
We will be launching BBC One HD for Northern Ireland, Wales and Scotland over the next few months
curious to know how we planned to fit BBC HD and four versions of BBC One HD into a single transponder without messing up picture quality? The answer is that we’re not. We have bought a new DVB-S2 transponder (DSat8) alongside the existing DSat4. Each of these transponders will carry two versions of BBC One HD and DSat4 will also carry BBC HD, as it does now. (We are evaluating options for the spare capacity on DSat8.) My esteemed colleagues in BBC Research & Development have put a great deal of painstaking work into the configurations of these two transponders to try to match the picture quality of each version of BBC One HD to the one we have at the moment, and maintain BBC HD’s picture quality, for which I am very grateful.
alle info:
http://www.bbc.co.uk/blogs/abouttheb...ing-BBC-One-HD
alle info over de BBC streams:
http://www.bbc.co.uk/blogs/bbcintern...n_changes.html
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deskundigheid door ervaring
