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Following this, the BBC is now going to make another change to the configuration, moving from QPSK to 8PSK modulation (from 4 to 8 Phase-shift keying), and a corresponding switch of the FEC (forward error correction) from 8/9 to 2/3.
This change will give a significant increase in the bitrate on the transponder - the change allows three bits to be carried per "symbol" (which remain at the 23.0MSymb/s rate) , rather than two as before).
The change from DVB-S to DVB-S2 last year increased the "usable" bitrate from 33.8Mbits/s to 46Mbit/s, the change to the 8PSK 2/3 will provide 58.8Mbit/s. (for more see DVB-S2 ready for lift off).
This will be used to allow for five high definition BBC television streams to be carried on satellite. The current two, used for BBC One HD and the BBC HD channel will be changed to:
The changes will happen later in the year, after the configuration changes have been made to the transponder on 20th September 2012.
Freeview and cable users will not see any changes on 20th September. You won't see any changes if you do not have any HD channels.
If you use Sky or Freesat-from-Sky your box should not require any action. If you are unable to watch BBC One HD or BBC HD on that date, turn the Sky box off at the mains, wait 30 seconds and turn the power back on. After a few minutes the box should be able to show the channels again.
If you use Freesat, you may have to "soft reset" the box on 20th September. To do this, put the Freesat HD box or Freesat HD TV into standby for 30 seconds and then switch it back on again. In some rare cases, this will not work and you will need to do a "first time install" on the receiver.
The diagram above shows the United Kingdom, split into the populations in each BBC television region. It is interesting to note that the BBC will be providing special versions of BBC One in HD for Scotland (9.1% of the population), Wales (3.5%) and Northern Ireland (2.5%) whilst neglecting the large London (18.4%) North West (11.7%) and West Midlands (10.9%) regions.
However, the BBC has commitments to the "nations" and does provide additional programming and opt-outs above the "regional news" slots provided for the English Regions.
I hope they don't turn the BBC HD channel in to BBC TwoHD as this will reduce the choice of programs, but...
If they switch the BBC HD channel to BBC two HD, then they will also need more streams for the Scotland, Northern Ireland and Wales regions.
Mark A: The reason for converting BBC HD to BBC TwoHD is to *save money*. They don't need to employ a separate set of channel controllers, nor need to employ separate playout and continuity announcers. It saves a fairly piffling amount of money, compared to the overall BBC budget, but it's enough for it to be worth doing.
BBC Two HD will initially be a single national service as BBC One HD currently is. Nations services, matching SD, will come later.
Expect to see more BBC Three programmes getting late-night repeats on BBC One, and more BBC Four programmes getting late-night or daytime repeats on BBC Two. Partly this makes up for the loss of the spots on BBC HD, but mostly it'll be due to reduced content spending (in real terms).
If you're looking for someone to blame, blame this Government for freezing the licence fee rather than allowing it to increase in line with inflation, and for loading a bunch of required spending on the BBC licence fee that was previously paid for from other government budgets.
Ronald: The transmitter at Sutton Coldfield has carried HD since 21 September 2011, and The Wrekin since 20 April 2011, covering the first postcode you gave. The second postcode falls into the Wenvoe service area, which launched at the end of March 2010.
As Dave Lindsay says, the most likely explanation is that your TV is not compatible. It must support the DVB-T2 transmission standard, not just DVB-T, and it must support the MPEG-4 AVC video encoding, not just MPEG-2. The easiest thing to look for is the Freeview HD logo.
The only downside to this is a less robust signal so some people in fringe areas of satellite coverage may have problems. Having 5 channels will also mean a very limited bitrate for BBC HD channels. What make this even worst is that most of the BBC 1 HD channels will be transmiting the same programe most of the time. This will make statistical multiplexing ineffective.
It's not about 'most of the time' but the other times. Should all of the UK just receive the current output which is overwhelmingly dominated by England based outpit? One example was just on Wednesday when England women's football international was shown in full HD while Scotland's women's international was shown on BBC Alba at 544 by 576. It's the British Broadcasting Corporation - or is it?
George I did not mean to sujest that I was against regional HD it is just the way the BBC is implementing it.
The BBC still does not have a viable stratergy for regional HD. As far as I know there are no plans to provide regional HD. The BBC is simply not wanting to spend the money on more transponders or on converting regional studios to HD.
Quality is an issue for sure. As far as I know, BBC Scotland is prepared for HD so that can't be the reason. I suspect the BBC do want to provide the best quality in utilising more transponders but are constrained by government cuts. I just hope that complaints will be many and vocal and will focus on that as the solution and not on abandoning separate geographical services. You would think there would be some technical way they could transmit the few (and they are few) variations when necessary instead of the wasteful duplication of most of the output most of the time.
At the root is the government desire to reduce the quality of the BBC overall to drive viewers to Sky and ITV. I believe most in this government would like to see it privatised - end of.
Apart from the changes to the HD services (which are due on Sept. 27th BTW) there are also the changes to BBC SD television services on October 12th and major changes to BBC radio services due on October 15th ...
I have a SKY HD box (PVR4) and since the 27th Sept I have been unable to get BBC one HD (143) and BBC HD (169). This must be down to the transponder change as I was able to get these channels before the change. I have a second SKY HD box (newer PVR5) and this still works for BBC HD post 27/9/12.
Richard: If you haven't already done so, you should try disconnecting the box from the mains supply and after about 30 secs or so reconnecting it again and allowed it to go through the usual searching for listings procedure, as that might correct the problem.
If it doesn't then please indicate the model number printed on the label on the underside.
Thanks. I have tried the power down reset without success. All the info I have seen suggests that it should work. It seems that the older box with the latest s/w will not handle the BBC's transponder changes. The failing box is as follows: Thompson (DSI8215) written on underside. From the service menu Model # 902020 Version 4E3006. I have contacted SKY but they where not even aware of the transponder config change and the front line support have not received any info about this problem.
Richard: That was an issue from last year (June 2011) concerning the change to DVB-S2 operation and not applicable to the problem you are presently experiencing "if" the box was previously working OK.
Although you should not really require to do anything other than that suggested, and although I cant guarantee that this will work by the fact of not having a SkyHD box kicking around at this present time to try it out myself, but you should try entering these latest parameters into your Sky HD boxes "other channels" facility and check to see if that then enables the box to pick up BBC HD. (These figures will possibly provide more info than the Sky menu allows for)
On my box I have nothing in "Other Channels". When I go to "Add Channels" I get asked for Freq, Pol, Rate and FEC. The rate comes from a menu that only allows 27.5 or 22.0 Mb. I tried Freq 10.847 and both rates and the search found nothing.
Do I need some hidden menu to try what you suggest ?
Richard: If your version of Skybox does not offer either a symbol rate setting of 23M/b or failing this an auto-select facility as applies in many Freesat TV's, then I am afraid that it doesn't look very promising as far as it being suitable for purposes other than SD use.
However, although as previously mentioned I do not have one of these boxes around at present for purposes of testing, I have however gleaned some information from elsewhere on a box with the operating system software being: 1.32B12 / EPG software 8.3.2, info as below.
Should any added channels be stored then they must be deleted and carry out a "new install" with the card inserted.
Press Services - 4, then " 0 - 1 - Select" which takes you into the installer menu, once in press "new installation"
By the way, dependant of the menu version you have rather than "services - 4 - 0 - 1 - select" it might be "services - 0 - 0 - 1- select, the main point being that you want to access "new installation".
I have a Panasonic Plasma 42" TX-P42G15B TV and it is now giving a pixilated picture and bad sound on 108 and 109 BBC HD channels.
I have tried switching to standby for 30 secs and also put it on Transit mode switched off then on and retuned all to no avail.
The set is only about 2 years old
to all who read this there is a e petition joinfreesat site for to force all uktv channels on to both freesat and freeview also get lots off people to sign because BBC owns 50% of uktv would be very grate full for the word to spread around the internet and beyond and thank you for letting me write this
The name "BBC 1 SCOT HD" looks a bit tight-fisted. What is the cost of four more characters?
On the FreesatNetwork, for service types 1, 2 and 25, we have service name lengths as follows:
3 of length 2
11 of length 3
11 of length 4
12 of length 5
9 of length 6
8 of length 7
21 of length 8
14 of length 9
22 of length 10
28 of length 11
24 of length 12
15 of length 13
30 of length 14
It would appear that Freesat have restricted service name lengths to a maximum of fourteen characters.
On the ASTRA Network, for service types 1, 2 and 25, we have:
1 of length 0
7 of length 2
25 of length 3
56 of length 4
30 of length 5
37 of length 6
50 of length 7
51 of length 8
58 of length 9
69 of length 10
70 of length 11
79 of length 12
55 of length 13
57 of length 14
17 of length 15
2 of length 16
It would appear that BSkyB have restricted these service name lengths to a maximum of sixteen characters.
However, if all service types are allowed, much longer names occur, the longest being "Sky News Active iText Quad" at 26 characters.
Note: The usual SERVICE TYPES are -
1 digital television service
2 digital radio sound service
12 data broadcast service
25 advanced codec HD digital television
Bought a brand new Humax Freesat+ box with freetime last week but its not recording everything I set it to record. Seems to be having a problem with the new BBC 1 Scot HD channel. I live in South Queensferry and this channel has only just become available. No one else I have discussed this with seems to have heard of any problems with this box. Can you help.
My dad (a pensioners) has astra 2 freesat and up to yesterday got all the relevant channels but on putting the Tele on today it says no signal, ... is there a simple explanation, he has tried plugs out etc, resetting the tv from scratch but to no avail, ... any suggestions please.