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C60 (786.0MHz) after switchover

The map below shows all the transmitters in the UK using C60 once digtial switchover is complete. Please click the icon to see the coverage area, and double click for more information.

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What do the map symbols mean?

 COM5/ArqivaA multiplex,  COM6/ArqivaB multiplex,  COM6/ArqivaB multiplex,  PSB1/BBCA multiplex,  PSB1/BBCA multiplex,  PSB2/Digital 3+4 multiplex,  PSB2/Digital 3+4 multiplex,  PSB3/BBCB/Freeview HD multiplex.

Before switchover

Click on a selection to see the use of the frequency use before switchover:

C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68

Switchover complete

Click on a selection to see the use of the frequency use when switchover is complete:

C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 * * * * * *

Thursday, 6 January 2011

8:09 AM

Jason: More or less what you would expect from a loft aerial. Please move the aerial to the roof where you can get a line-of-sight to the transmitter.

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Briantist's 38,844 posts GB
Wednesday, 17 August 2011
John Websell
8:35 PM

Wednesday, 17 August 2011

Before I retuned my Humax 9200 today, I was able to receive "Yesterday" on Ch 12, "Film 4" on Ch 15 but unable to receive "ITV3" at all.

Following today's retune, I am now able to receive C10 but not channels 12 & 15.

Any idea why this may be so?

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John Websell's 1 post GB
Thursday, 18 August 2011
Friday, 30 September 2011
Brian G
12:51 PM

Is Channel 60 (785.8 MHz) now broadcasting on the Malvern transmitter? I cannot get it and a local installer claims that it is not available yet.

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Brian G's 7 posts GB
Alan T of Rushwick
1:52 PM

Brian G, I could receive the 4 HD channels last week from the Malvern transmitter, but they did not seem to be available yesterday or today! have they gone off air?

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Alan T of Rushwick's 2 posts GB
Alan T of Rushwick
2:03 PM

Odd that....just re-scanned channel 60 manually and they have re-appeared! Thats after scanning several times earlier!

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Alan T of Rushwick's 2 posts GB
Saturday, 1 October 2011

9:54 AM

Alan T of Rushwick/Brian G: It would appear that there was a "undocumented" problem.

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Briantist's 38,844 posts GB
Friday, 24 February 2012
10:43 AM

Further to Sally Cooke/Mike Dimmick 25Aug2010 re Horsham Coverage, please clarify how Midhurst coverage will improve - additional transmitters/antennas to East or what?

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CrisOC's 1 post SE
Mike Dimmick

3:27 PM

CrisOC: The Midhurst mast has one set of antenna panels at the very top, then another cluster on one side just below the top. It's not entirely clear, but I believe the digital services come from that lower cluster rather than the main antenna at the top.

mb21 - The Transmission Gallery

At switchover, digital services move from whatever arrangements they've been using to the main antenna(s). (At some sites separate antennas are provided for the PSB and commercial services, although they're usually just stacked one on top of the other.)

Also, digital power levels are usually increased. The new level is based on the current *analogue* power level and is usually one-fifth for the PSBs and one-fifth or one-tenth for the COMs, which gives roughly equivalent coverage, usually a little more. If levels aren't increased it was because the digital signals were already at this level.

Finally, services usually move to different channels, which have less interference than they did before switchover. The PSBs usually take over old analogue frequencies at main transmitters; at relays it may be necessary to change them to avoid clashing with a main transmitter, or to change from a non-standard grouping to a standard one.

Because of clashes with other transmitters that are yet to switch over, ArqB will remain at 1 kW until 25 April, after London switches over. Because the mode also changes at switchover, the coverage will probably decrease compared to Mux D, although this is a channel change as well.

Ofcom's documentation also says there could be restrictions on BBC A, D3&4 and ArqA 'if required', to half the published power, until 27 June. However, this doesn't appear on the postcode checker, so they may have decided that it isn't required, unlike the restriction on ArqB.

For you, Digital UK's trade view shows no prediction (< 50% of your grid square expected to get reliable results even half the time) for Mux C and D at present. The prediction goes up to 99% or 100% of locations at switchover, which is probably due to decreased interference more than changes at Midhurst.

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Mike Dimmick's 2,486 posts GB
Monday, 16 April 2012
J Fergusson
1:06 PM

On what basis are channels Film 4 and Dave not available to viewers living in the KA23 post-code areas? We pay our taxes like everyone else..
(Home address KA23 9EH).

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J Fergusson's 2 posts GB
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