Final switchover for The Wrekin, Ridge Hill groups on 20th April in 2011 week 4
Viewers in Shewsbury, Telford, Bridgenorth, Wolverhampton, Ludlow, Hereford, Ross-on-Wye, Gloucester, Cheltenham and Bromsgrove will have no analogue television from Wednesday 20th April 2011. Unless you use cable or satellite to watch television, if you don't use a Freeview box or set, your screen will be blank.
Most people need only retune their Freeview box or TV, but it would be impossible with 634,600 homes covered by the transmitters, that there would be no problems.
From Wednesday 20th April 2011 you MUST have a digital television device to watch TV. If you do not have a digital receiver, from Wednesday will have a blank screen.
Do not expect a terrestrial television service from midnight until 6am - or a late as lunchtime on relay transmitters.
If you are over 75, get (or could get) Disability Living Allowance, Attendance Allowance, Constant Attendance Allowance or mobility supplement; or have lived in a care home for six months or more; or are registered blind or partially sighted and need assistance, please see The Switchover Help Scheme.
Cable and satellite
Cable (Virgin Media) and satellite (Sky, Freesat, fSfS) viewers are not affected by the changes. Remember, however, that you may be using analogue TV to watch on a second or third set and it might need a Freeview box.Existing Freeview users
If you already use Freeview, and can receive all the channels now, check your TV or box is not listed here - TVs and boxes that do not support the 8k-mode. If it is, you will need a new box.If you are not on the list, you should scan your box from around 6am.
When you now rescan, you MUST do a "first time installation" or "factory reset" scan, not an "add channels". Do the procedure you did on September 30th 2009. If you can't recall what this was, please see generic clear and rescan procedure.
If you scanned during the first phase of switchover on Wednesday 6th April 2011 - you will have to do it again on Wednesday 20th April 2011.
Restrictions on SDN, Arqiva A and Arqiva B multiplexes
Because the change to 64QAM mode on multiplex D/Arqiva B on Wednesday 20th April 2011, this will mean a small number of viewers will be unable to receive Arqiva B. This is to allow the provision of Sky Sports 1 and Sky Sports 2 to BT Vision customers.After Wednesday 20th April 2011 at The Wrekin, the Arqiva multiplexes will remain on their pre-switchover frequencies and powers, and SDN will use a temporary frequency, for a short period before all three multiplexes adopt their final frequencies and powers during September 2011. During this transition period the commercial multiplexes will use the following frequencies: SDN C49 and C31 (both 2kW), Arqiva A
After Wednesday 20th April 2011 at Bromsgrove, Arqiva A will remain on its pre-switchover channel (33) until September 2011. Arqiva A and Arqiva B will temporarily operate on C34 and C29 respectively from the first stage of switchover at Bromsgrove until September 2011.
From Wednesday 20th April 2011 at Lark Stoke, Arqiva A and Arqiva B will remain on their existing frequencies and powers, and the SDN multiplex will use a temporary frequency. All three multiplexes will adopt their final frequencies and powers during September 2011. During this transition period following frequencies will be used: SDN C31 (50W), Arqiva A C57 (25/50W), Arqiva B C60 (25W).
HTV West service from Ridge Hill transmitter
From Wednesday 20th April 2011 there will be a second D3+4 multiplex on C29 to supply the ITV1 (ex HTV) West service, in addition to the ITV1 Central West.Using Freeview with Windows Vista
Please see Switch over and PC-based systems because you need some updates for your system to work.Boosters
If you live close to the transmitter, you may have to disconnect any "boosters" from your aerial system. The new, more powerful digital signals may overload any amplifiers and result in no reception! When looking for them include a check for distribution amplifiers, loft boxes, set back amplifiers, bypass Amplifiers, hidden masthead amps in a loft space and any dodgy active splitters.Homes without Freeview
If you had no Freeview service before, you will have the BBC channels digitally from Wednesday 6th April 2011. This is a single multiplex of the BBC channels (radio, television and text) for most people.However, if you were on the fringes of reception from one of the main Freeview transmitters, you will now get all the Freeview channels.
If you didn't get this limited Freeview service in November then you may need a new aerial.
If you are served by a public service (relay) transmitter If you use Andoversford, Bucknell, Churchdown Hill, Clun, Coalbrookdale, Eardiston, Ewyas Harold, Garth Hill VP, Haden Hill, Halesowen, Hazler Hill, Hereford, Hope under Dinmore, Kington, Knucklas, Ludlow, New Radnor, Oakeley Mynd, Peterchurch, Presteigne, Ross on Wye, St Briavels or Upper Soudley you now need, from lunchtime on December 2nd to rescan, and you will get a second Multiplex with ITV 1, ITV 2, ITV 1 +1, Channel 4, Channel 5, Channel 4+1, E4 and More4. And that's your lot, see Freeview retune - poor public service transmitters.
Everyone who has digital TV now has Freeview HD.
Digital regional overlap
The old analogue TV signals provided lots of nations and regions for the public service channels, and these have large areas of overlap.The old low power digital TV signals were at very low levels and reception of signals from more than one transmitter was a rare event.
All Freeview boxes automatically scan the available broadcast frequencies looking for channels, and they do this from C21 to C69. Whilst scanning, if a duplicate version of a channel is found, such as another BBC One region, they are placed in the 800-899 channel range.
The 800-899 is easy to access by pressing CH- from 1, and in most programme guides is just a single scroll up.
Freeview HD
Freeview HD will start on Wednesday 20th April 2011 from the The Wrekin, Ridge Hill, Lark Stoke, Bromsgrove and all the relay transmitters. You will need a Freeview HD - DVB-T2 receiver to watch the channels. A HD TV set with Freeview is not enough.Fred Ashford: You get both. Check channel number 803 (probably).
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wutty: Please see the notes at the top of the page about "Restrictions on ... Arqiva B multiplex"
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12:05 PM
Briantist, errr, thanks - but what does it mean? I've read the paragraph but don't understand it.... Are the sky sports (BT vision) channels there or not? It says 'on their old frequencies' but after a full rescan I can not see them at all now.... Can you provide a translation into english!??! Thanks!
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12:33 PM
Nottingham
Brian - as I just noted elsewhere, you seem to have the channels - or the station lists - for ARQa/B reversed. Or the transmitters do!
I am geting on 53 what you say is 57 and v-v.
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steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
1:30 PM
steve: Yep, Arqiva have pulled a sneaky swap of their multiplexes to give ArqB the slightly better frequency. This is shown on DUK's postcode checker, but isn't in any Ofcom documentation.
BT must be paying Arqiva a lot to make sure Sky Sports works as well as it can do! (Sky don't *want* their sports channels on terrestrial, they were made to do it by Ofcom at BT's request.)
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1:41 PM
wutty: The Sky Sports channels' permanent home is on Mux D/COM6/ArqB. Same thing, different names, we usually use Mux D to refer to the pre-switchover mode and ArqB for the post-switchover mode. There wasn't enough capacity for Sky Sports on Mux D before switchover, so the BBC carried it on their Mux B instead. Mux B has to be cleared for the HD channels at switchover, so the BBC cleared out all the services they couldn't provide in all regions in the big retune in 2009, making space that they could then sell.
Unfortunately, ArqB is currently on a worse frequency than Mux B was, is transmitted at half the power, and - because of the mode change - requires more than twice the power to work reliably. It will stay this way until September - the final locations for this multiplex (and ArqA) are being used by Sutton Coldfield and The Wrekin can't use them until Sutton Coldfield switches over.
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1:51 PM
wutty: To convert from frequency to channel, subtract 306 and divide by 8.
514 MHz = C26 = BBC A
490 MHz = C23 = D3&4
698 MHz = C49 = SDN (West, temporary)
SDN transmits at double the power of ArqA and ArqB, and using a mode that requires the same signal level to work. You probably have a box where the 'quality' indicator only shows uncorrectable errors, so it will only show less than 100% if the picture is already breaking up - making it pretty useless for troubleshooting.
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1:52 PM
Telford
Hi Mike, So if I understand you, then I can't get these channels again until September??? What about the HD channels and Dave etc that I thought were supposed to be coming on stream after today's retune?
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wutty's: mapW's Freeview map terrainW's terrain plot wavesW's frequency data W's Freeview Detailed Coverage
1:54 PM
Wrexham
For me 57 is BETTER than 53!
57 just usable with internl ae; 53 not. Dunno why!
Both fine with rooftop I think.
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steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
3:33 PM
Telford
Hi anyone! re previoous very annoying stuff about missing channels after a full retune. Will a manual scan help me get Sky Sports back - and if so where should it be found now? Also, still not sure why no HD channels are showing at all after the retune today. Thanks for help...
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wutty's: mapW's Freeview map terrainW's terrain plot wavesW's frequency data W's Freeview Detailed Coverage