menuMENU    UK Free TV logo Freesat

 

 

Click to see updates

BBC HD to switch to DVB-S2 on 6th June 2011

The BBC will switch to the higher-capacity modern modulation scheme for the BBC HD and BBC One HD channels on satellite.

The BBC will switch to the higher-capacity modern modulation sc
published on UK Free TV

The high definition (HD) television channels on satellite require a lot more bandwidth (number of bits per second) than the standard definition (SD) ones, as you might expect.

However the additional capacity required is reduced in two ways. First the MPEG-4 compression system is used (rather than MPEG-2) and generally the DVB-S2 modulation system increases the bandwidth of each satellite transponder.

Generally speaking, around nine SD television channels can be carried on a transponder in DVB-S mode, and four HD channels on one in DVB-S2 mode.

For historical reasons, the BBC's Astra 2D transponder 50 has been providing BBC One HD and BBC HD (and also ITV1 HD Merdian South) in the DVB-S mode, and this has used all the capacity on the transponder, because of the lower bitrate.

The changes

One 6th June 2011, the BBC will switch the transponder to DVB-S2. If you watch using Sky+HD, Virgin Media or Freeview HD you will not have to do anything.

If you use a branded Freesat box (or TV set), you may need to put it into stand-by mode for 30 seconds on 6th June. If that doesn't work, perform a 'first time installation'.

Update: Some Panasonic Freesat boxes are unable to deal with the change - see comments below

If you are using a unbranded Freesat box, you may find that you also have to do a 'first time installation' to get the channels back.

Some older satellite equipment will not support DVB-S2. If you can't watch Channel 4 HD, then you will no longer be able to watch the BBC HD channels.

Sky HD, Freesat HD EPG issues

Currently BBC One HD cannot automatically replace BBC One in the Sky EPG at position 101, because there are 15 regional versions of BBC One, and only a single BBC One HD 'stream' on the satellite.

BBC Two carries four regions for England, Scotland, Wales and Northern Ireland. For a BBC TWO HD to appear in the Sky EPG at position 102, the BBC would need to provide four versions of BBC TWO HD.

All the other BBC channels are national, and have no regional components. BBC Three timeshares with CBBC, BBC FOUR timeshares with CBeebies, plus there is BBC News, BBC Parliament and BBC Alba.

The extra capacity found by moving to DVB-S2 could allow the BBC to provide BBC Three, BBC Four, CBeebies and CBBC channel in HD, and these could be provided in the "usual" EPG slots for Sky HD and Freesat HD users, which would put them on the lower numbered channels nearer the top of the guide.

Help with Free satellite?
What can I do when my Sky Digibox says 'No Signal' or 'Technical fau1
Can I receive UK TV in Ghana?2
What is a CA module?3
My box says "No Satellite signal being received"4
Is there any way I can get free channels via satellite and have the kind of hard5
In this section
Show me the 55 TV channels have moved to the new Astra 2G satellite 1
Good news for Freesat? Astra 2E satellite launched2
No satellite signal? Check your dish for snow!3
New satellite footprints page4
BBC satellite changes: radio, BBC ONE HD, Red button reduction 12-15 October 2015
Changes to BBC HD transmissions on Astra satellites on 20 September 20126

Comments
Monday, 6 June 2011
Briantist
sentiment_very_satisfiedOwner

4:29 PM

David: In theory Panasonic can provide a very simple update to accept the 23.0 parameter. I would imagine that such a simple fix can be sorted out very quickly.

link to this comment
Briantist's 38,910 posts GB flag
N
NottsUK
sentiment_satisfiedGold

4:50 PM

Mike Dimmick: The Panasonic has four symbol rate options when it scans in other channels mode. They are Auto, 22000, 27500 and 29500. If I scan the transponder using the Auto option it picks up the names of the channels, BBC HD, BBC One HD, ITV HD and 6945 and puts them in the channel list. When I go to watch BBC HD or BBC One HD all I see on the screen is "No Signal", while ITV HD shows encrypted at the bottom of the screen and "No Signal" in the centre.
With the receiver in Freesat mode I still get the "No Signal" on the screen with BBC HD and BBC One HD, but when I press the "Guide" button on the remote all the EPG is there. The Panasonic is receiving some information from the satellite, but unfortunately not the bit I want to watch.

link to this comment
NottsUK's 345 posts GB flag
J
jb38
sentiment_very_satisfiedPlatinum

5:01 PM

NottsUK etc: With reference to Panasonic HD television receivers. On arrival home a short while ago I found that my G20B range Panasonic TV had stopped receiving the BBC HD channels on satellite, indicating neither strength or quality on a signal condition check.

I am unaware if this applies to all Panasonics but mine doesn't offer 23000 as a symbol rate choice on the manual scan menu, however thankfully, if a new auto scan is carried out it will be found that all corrects itself and BBC HD returns as normal, with 23000 seen entered in the info box when a further signal check was carried out.

I also tested BBC HD out on my Foxsat HDR, it performing perfectly OK without any alterations being necessary.

link to this comment
jb38's 7,179 posts GB flag
Briantist
sentiment_very_satisfiedOwner

5:16 PM

jb38: Thanks for that.

link to this comment
Briantist's 38,910 posts GB flag
N
NottsUK
sentiment_satisfiedGold

5:33 PM

Briantist: I have been onto Panasonic about the problem I have been having and it is now resolved. Freesat channels 108 and 109 are now back to normal.

link to this comment
NottsUK's 345 posts GB flag
S
satandpcguy
sentiment_satisfiedBronze

6:21 PM

According to reports, there are issues with older Thomson Sky HD boxes, and Irish Sky card users, who are getting "No satellite siganl" messages when trying to watch BBC HD channels.

link to this comment
satandpcguy's 89 posts ES flag
M
Matt
sentiment_satisfiedBronze

7:18 PM

anyone with freesat equipment that no longer works try a factory reset or shipping condition.

hope this helps.

link to this comment
Matt's 22 posts GB flag
B
Bob
8:16 PM

My Panasonic BS850 is still not receiving channels 108 or 109....how and when did Panasonic tell you it was resolved?

link to this comment
Bob's 2 posts GB flag
B
Bob
8:34 PM

I have just returned my Panasonic BS850 DVD recorder to the "Shipping Conditions" state and the built in Freesat receiver is now working for both BBC HD channels.with BB

link to this comment
Bob's 2 posts GB flag
Briantist
sentiment_very_satisfiedOwner

9:06 PM

satandpcguy: Is that because they are unable to do it via "add channels"?

link to this comment
Briantist's 38,910 posts GB flag
Select more comments

Your comment please
Please post a question, answer or commentUK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.







Privacy policy: UK Free Privacy policy.