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Changes to switchover frequencies in Meridian, London and Northern Ireland

Ofcom have, as part of the changes required to create the 4G mobile broadband service, changed switchover channel allocations on transmitters in parts of the UK

Ofcom have, as part of the changes required to create the 4G mo
Brian Butterworth published on UK Free TV

The latest versions of the Ofcom - Digital Switchover Transmitter Details documents provide for the following changes:



Transmitters with allocations to C61 remaining

The following transmitters have allocations to C61:

MENDIP PSB1, WINTER HILL COM5, WALTHAM PSB1, MIDHURST PSB2, ANGUS COM6, CARMEL COM6, Keighley PSB1, Rosneath VP PSB1, OLIVER'S MOUNT COM6, Gartley Moor PSB2, Plympton PSB2, BRECON PSB1, Shatton Edge PSB3, Camlough PSB2, GOSFORTH PSB1, Llandecwyn PSB1, Portpatrick PSB2, Ilfracombe PSB2, MYNYDD BACH PSB1, ST BEES PSB1, Aberystwyth PSB2, Hatch Bottom PSB3, Fishguard PSB1, PONTARDAWE PSB1, CROESERW HP PSB1, CROESERW VP PSB1, Fodderty PSB2, Mynydd Pencarreg PSB1, PRESTON PSB1, INNERLEITHEN PSB1, Ton Pentre PSB1, Craigellachie PSB2, RIPPONDEN PSB1, Weisdale PSB2, LLANENGAN PSB1, WORKINGTON PSB1, CORNHOLME PSB1, Broad Haven PSB1, Loch Feochan PSB2, Rosneath HP PSB1, CRAGG VALE PSB1, Pembroke Dock PSB1, Truro PSB2, WHEATLEY PSB1, Onich PSB1, DOWLAIS PSB1, BATLEY PSB1, HEADINGLEY PSB1, STOCKSBRIDGE PSB1, Newtownards PSB2, Abercynon PSB3, ARMITAGE BRIDGE PSB1, Avoch PSB3, Ballantrae PSB2, Burry Port PSB1, Dromore PSB2, ELLAND PSB1, Glyn Ceiriog PSB2, Grandtully PSB1, Halesowen PSB2, Helston PSB2, Llangollen PSB2, LOCHEARNHEAD PSB1, MILLHOUSE GREEN PSB1 and Pennsylvania PSB2.

Transmitters with allocations to C62 remaining

The following transmitters have allocations to C62:

TACOLNESTON PSB3, Winter Hill PSB1, OXFORD COM4, Huntshaw Cross PSB1, MIDHURST COM4, RUMSTER FOREST COM6, Selkirk PSB1, Salisbury COM4, Barskeoch Hill PSB3, Haltwhistle PSB2, Stanton Moor PSB2, Swinster PSB1, ST AUSTELL PSB1, Beecroft Hill PSB3, Newcastle PSB2, Scoval HP PSB1, Ebbw Vale PSB3, PETERHEAD PSB1, Whitby PSB3, Port Isaac PSB1, Monmouth PSB3, Countisbury PSB2, Hutton PSB2, Leamington Spa PSB2, ST HELIER PSB1, Llangeinor PSB3, Scoval VP PSB1, Steyning PSB3, Dawlish PSB1, Rheola PSB3, Balblair Wood PSB1, Ynys Owen PSB3, KILMELFORD PSB1, St Brelades Bay PSB3, Penrhyn Coch PSB1, Tullich PSB1, Washford PSB2, Taffs Well PSB3, Praa Sands PSB1, Woodcombe PSB2, Weaverthorpe PSB3, Longwood Edge PSB3, Oughtibridge PSB3, Portishead PSB2, MACHEN UPPER PSB1, Inverness PSB1, Bincombe Hill PSB1, Creetown PSB2, Belper PSB2, Scalloway PSB1, Holmfield PSB3, Penryn PSB1, Dolgellau PSB3, Grasmere PSB2, Tonyrefail PSB3, Tynewydd PSB2, BEAMINSTER PSB1, BEER PSB1, Kilve PSB2, Orpington PSB3, Tregaron PSB2, CULLINGWORTH PSB1, Bradford West PSB3, Liverton PSB1, North Hessary Tor PSB1, Gellifendigaid PSB3, BEDDGELERT PSB1, Clearwell PSB2, Cleckheaton PSB3, Copley PSB3, DRONFIELD PSB1, Fernhill PSB3, GLYNDYFRDWY PSB1, GOURDON PSB1, Kingskerswell PSB1, Kinlochleven PSB3, LLANDDERFEL PSB1, LLANGYNOG PSB1, Modbury PSB1, Newton Ferrers PSB1, South Maesteg PSB3, SOUTHWAY PSB1, Tonypandy PSB3 and Wincobank PSB3.


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Comments
Thursday, 26 January 2012
Briantist
sentiment_very_satisfiedOwner

7:46 AM

Dave Lindsay: BT Vision boxes will be OK, however, as they have MPEG4 built-in for their streaming services.

link to this comment
Briantist's 38,915 posts GB flag
Briantist
sentiment_very_satisfiedOwner

7:47 AM

Mike Dimmick: Yes, thanks again.

I will check that document for the missing updates. I really wish it was a format I could import!

link to this comment
Briantist's 38,915 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:18 AM

Briantist: So RT1, RT2 and TG4 will be (or are) available on BT Vision's on-demand service?

Or will BT Vision boxes be able to receive these channels off-air, when they become available?

link to this comment
Dave Lindsay's 5,724 posts GB flag
M
mrdtv
sentiment_satisfiedGold

12:03 PM
London

RTE is going to be transmitted as a DVB-T2 signal, so current BT Vision boxes won't work in NI for the minimux service: you must have Freeview HD.

link to this comment
mrdtv's 321 posts GB flag
mrdtv's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

12:23 PM

Dave Lindsay, Briantist, Pat Hughes: The tender documents at RT: NI Project specifically say "integrated into Freeview *HD*". To me that implies DVB-T2, although it isn't specifically stated.

I know Brian's belief is that DVB-T2 muxes will carry HD only, but I think that's a promotional issue to drive voluntary take-up of T2 equipment - the value proposition of a greater number of new SD services is considered lower than the value of fewer additional HD services. I'd argue caution on that point, several surveys have indicated viewers are more interested in more choice than in better quality for the choices they already have. (You only have to look at the behaviour of the commercial muxes, continually squashing in more channels!)

The documentation doesn't state anywhere what mode is proposed. Without that information we can't tell what the coverage will be. It does appear from Saorview's map that Claremont Carn will be permitted to broadcast a lot of power to the north, providing a lot of the coverage - the mini-mux is there to fill in where overspill from the Republic doesn't reach. It *is* expected that the mode is substantially more robust than any of the options used by the main six muxes, and therefore much more coverage will be obtained from the low power levels available.

BT Vision boxes may well be able to decode the overspill Saorview transmissions, which are MPEG-4 AVC (H.264) carried on DVB-T. But I don't think we should assume that the mini-mux will use the same mode - it's not carrying as many channels, for a start.

The tender process should now have reached the dialogue phase with any applicants that have been shortlisted, but I can't find any public notification of who they are, or any more documents. We may not find out any more details until the end of March, when the contract is due to be issued.

link to this comment
Mike Dimmick's 2,486 posts GB flag
M
mrdtv
sentiment_satisfiedGold

6:08 PM

- http://www.dtg.org.uk/dtg….pdf
From the DTG web site: full specification of RTE minimux mode confirming DVB-T2. (NW24PN)

link to this comment
mrdtv's 321 posts GB flag
M
mrdtv
sentiment_satisfiedGold

6:23 PM

And here specifically stating DVB-T2 SD from DUK for the RTE NI minimux:

http://www.digitaluk.co.u….pdf

link to this comment
mrdtv's 321 posts GB flag
Briantist
sentiment_very_satisfiedOwner

10:43 PM

Dave Lindsay: BT Vision boxes can decode the existing transmissions in the RoI, but they can't deal with DVB-T2 as the three transmitters in NI will use. Sorry for any confusion there.

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Briantist's 38,915 posts GB flag
Friday, 27 January 2012
Briantist
sentiment_very_satisfiedOwner

2:35 PM

Mike Dimmick: The "Blue Book" had had a new DVB-T2 transmission mode added to it in version 8, this is called "Northern Ireland mode", mode 11.

General: MPEG4 does not imply HD, but in the UK Ofcom prevented Sky from using on for the "Project Picnic" saying that MPEG4 would only be used on DVB-T2, not with DVB-T.

link to this comment
Briantist's 38,915 posts GB flag
Briantist
sentiment_very_satisfiedOwner

2:38 PM

Mike Dimmick: There are now lots of updates, see Updates from "licences version 7", mixed polarity transmitters, corrections etc | ukfree.tv - independent free digital TV advice .

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Briantist's 38,915 posts GB flag
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