Switchover starts in 4 million homes in Yorkshire, West Midlands 7th September
If you live in or around Birmingham, Wolverhampton, Stoke-on-Trent, Derby, Lemington Spa and the West Midlands; or your live in Leeds, Bradford, Wakefield, Halifax, Huddersfield, Sheffield, Barnsley, York or Worksop - digital switchover starts just after midnight on Wednesday.
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Jill Robinson Monday 5 September 2011 5:57PM Lutterworth
Since the middle of July I have been experiencing problems with Freeview (signal strength too low), but also with the reception on TV's in other rooms that are not Freeview. Is this all related to the digital switchover - it is very frustrating as we are frequently left withh no watchable service.
Any advice you can offer will be very much appreciated.
Retuned this morning as instructed and got a duplicate set of some of the BBC channels in the 800s. Is this normal during the two switchover stages? Mux B is still broadcasting, but BBCA now carries all of its channels… why didn't they turn off that as well?
Wharfedale switched over sometime between 7.00am and 7.45am. No problems, BBC A now available. I have tuned 2 of my four(!) devices in this morning. The analogue channels had come back on before this, with ITV on the old BBC2 channel.
Alan Kydd Wednesday 7 September 2011 10:47AM Hope Valley
A re-tune of both analogue and digital 1t 10:30 this morning resolved the problem. The analogue channels (apart from BBC" as expected) were back and digital service was available - and NOT just BBC2 - we also have BBC1 digital!
Hi, I have a Philips DT1500 and have all the instructions forreturning to Factory settings. However It states: disconnect freeview from the mains. Press + button on the front whilst reconnecting to the power, then the red led should be on, keep pressing until the multicoloured led shows, pause, then press + again and the multicoloured led should turn to red at this point using remote press 9 9 0 0. Unfortunately I do not get to the point where multicoloured led shows only orange and then green. I have tried going through the installation in the menu but it does not work correctly. Can you help.
John Green Wednesday 7 September 2011 3:01PM Leigh
Jackie Jackson - re Philips DT1500 - I too have had problems in the past when resetting. It's a while ago now, but if I remember the instructions re LEDs were slightly inaccurate. Try again, and remember it takes much longer that you might expect for the LEDs to change.
A J Saddler Wednesday 7 September 2011 3:02PM Derby
I have not been able to get Sky Sports 1 and 2 since 31/8. I am a paid up member of Top Up TV and have had ESPN ok through this period. I have been in touch with Top Up TV and they tell me that the digital switchover is to blame. Can you please confirm this, and advise if there is anything to get my Sky service back? Thank you. I live at DE22 1FB
my da has a philips 37pfl5522d/05
i have retuned and have all the channels, however after approx 45mins bbc1 and bbc2 stop working and bbc2 disappears completely, any ideas, is it a problem with the tv. on rescanning they come back again.
Hi, I live in Holmfirth. No BBC 1 or BBC 2. have carried out numerous full re-tunes without aerial to clear memory, then full re-tunes with aerial. On some occasions BBC1 and BBC2 re-appeared, but only for a short time. Thank heavens the rugby world cup is on ITV!!!
Do commercial pressures from ITV advertisers rather than the taxed licence fee for BBC explain why BBC have the problem channels.
we can't seem to get anything right in this country
Andrew Lowe: Although lots of other complexities are involved in this, but put very simply, this is because that pre-switchovermultiplex transmitters were started up operating on relatively low power levels, the reason being so that they would not interfere with the more distant viewers reception of other transmitters operating on the same frequency covering an adjacent area, this usually on analogue although it could also be very low powered digital.
The switchover process involves all of these pre-switchover transmitters (usually six on a main station) significantly (as far as PSB is concerned) increasing their power levels, which if that was all that was done could then cause problems to the more distant viewers referred to, and so to avoid this happening their operating frequencies had also to be changed, this being why re-tuning is always necessary to enable viewers to keep track of the changed frequencies / channel numbers, the only reason for it having to be done on such a number of occasions (some areas) is because of the number of multiplex transmitters involved, and the automatic chain effect resulting by any change.
Analogue is/was basically a stable well established system, and this is why retuning was never really necessary.
Andrew Lowe: Because analogue simply had one radio channel = one programme service, but the capacity of a digital multiplex can be sliced up many different ways to fit in many channels. The Service Information describing how each multiplex has been sliced up is continuously re-broadcast at very short intervals - your box *could* use that information to spot new channels and deleted channels, but unfortunately very few do.
An actual *retune*, a move of a multiplex from one frequency to another, is relatively rare, though as jb38 says, some sites (particularly Sandy Heath and Mendip) have had far more than others. Again, there is provision in the Service Information to describe a move of one frequency to another, but very few boxes implement it correctly.
Here, the pay-TV markets work much better than the open systems, because the provider (Sky, Virgin Media) is in full control of the hardware specification and have required that the boxes retune themselves automatically as required. Freesat equipment can require being put in standby before picking up a change, and some does require the user to select a retune.
The automatic retune features on a lot of Freeview equipment are a disaster if you're in an overlap area, as they will typically tune in the lowest frequency signals even if you specifically manually tuned to the best available. The newest equipment should handle this a lot better.
I hope you can shed some light on the following problem that has occurred following the first switch to the Sutton ColdfieldTransmitter. I would also have reason that all those viewers still using the old ON Digital and ITV Digital set top boxes are suffering the same fate as myself.
Back in December 2000 I purchased the Toshiba 28WT98B DTV which was the first Digital TV produced by Toshiba, then found inside was a Philips tube. No problem there..although it hasn't really worked properly since Toshiba never wrote the software to pick up the text channels before ITV Digital went bump having out stretched themselves bidding to show live football. I guess we all remember the reasons behind that.
Following the first switch last Wednesday (7th) I find that although on Analogue BBC 2 went off the air on channel 40 as planned they have put ITV 1 on Channel 40, clearing the way for the 7 BBC channels to occupy Channel 43 on the Digital system.
Since I was able to receive all 105 digital channels prior to last Tuesday night, I can only receive 98 channels now with all the BBC channels blank.
Can you explain what has occurred since Switchover and does this mean that from the 2nd switch date on 21st September myself and those who have the older Digital TV and set top boxes won't be able to pick up any channel in the conventional way and will have to buy again either a set top box or DTR to be able to view any channel.
Your old equipment only had the cabability of receiving Freeview pictures using 2kb packets of digital information.
ll transmissions will now use 8kb packets of information.
All muxes will now also use 64QAM except for the HD Multiplex which will use the 256QAM format
Terry Mahon: Actually, "2k" and "8k" do not refer to "packets of information", they refer to the number of subcarriers the signal, which occupies and 8MHz block, is split into.
In fact 2k refers to 1705 and 8k to 6817.
You can (sort of) think of the signal as being split into 4kHz or 1kHz signals. This can be done because as the signals are digital and have two possible levels (0 and 1) the effect of sidebands can be ignored, which certainly isn't true if they were analogue signals.
Whilst information in the multiplex is carried in packets, this is not part of the CODFM system, but a "higher level", the MPEG-2 transport stream.
I purchased a Sony Bravia TV last December which has Freeview and HD already installed. I have retuned my TV on the date requested but I am not receiving HD viewing yet? Am I supposed too or do I need to wait until 21st Sept?
The Sutton Coldfield coverage area already has a 'temporary' HD service but this is on low power and restricted coverage (and is actually from Lichfield). The high-power, permanent, service also starts on 21 September, this time from Sutton Coldfield.
The Freeview HD predictor shows a start date at your postcode of 2 November 2009 because the Digital UK predictor reckons you are covered by the Winter Hill transmitter, which switched over on that date. You might also get a reliable service from The Wrekin.
I live in Elmesthorpe (Leicestershire) and used to get East Midlands news. Last week this changed into West Midlands news which does not seem so relevant. I also the prefer the East Mids presenters. What happened? I have tried retuning the tv but can only get West Mids news.
B. Patel Thursday 15 September 2011 1:38PM Birmingham
I have a SONY Kd28DX505 tv and in the menu section I cannot get the AUTO TUNE button to come on which menas I cannot auto tune. I have lost BBC1, BBC2 and Channel 5 altogether. I live in Birmingham 5 area. I ned help to get the missing channels.