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C22 (482.0MHz) after switchover

The map below shows all the transmitters in the UK using C22 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,  COM5/ArqivaA 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,  PSB3/BBCB/Freeview HD multiplex,  Saorview multiplex 1,  Saorview multiplex 1,  Saorview multiplex 2.

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 * * * * * *

Tuesday, 25 October 2011

2:30 PM

Sophie: Yes, that is correct.

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Briantist's 38,844 posts GB
Monday, 5 December 2011
Gordon Duncan
1:38 PM

Until recently I received all 6 muxes from the Darvel transmitter. (My post code is KA7 4RP) Lost the 3 lower power ones with very poor reception on the other 3. Had the aerial replaced with a high gain group A. Can now receive all bar 1 - ArqB (MuxD). Any suggestions. Thanks in advance

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Gordon Duncan's 2 posts GB
Thursday, 8 December 2011
Friday, 9 December 2011
Gordon Duncan
7:07 PM

Thanks for the response. During the storm on Thursday the tv picked up the missing channels. However Friday no picture (bad signal). The signal strength for all channels except 29 (ARQB) is 8 or more (10 the highest) and the quality is 8 For ARQB strength is only 4 or 5 and quality 1.

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Gordon Duncan's 2 posts GB
Wednesday, 14 December 2011
Friday, 16 December 2011
4:07 PM

good day
receiving signal from caradon hill(cornwall)
freeview picture fine but freeview hd picture
is cut in half, tv is 6 years old 720p lg.
also masthead ariel booster fitted (we live in valley)any suggestions.
regards tonto.

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phil's 2 posts GB
Thursday, 22 December 2011
John Carr
3:33 AM

Until this afternoon I was able to receive Digtal BBC1,2 & News. Then I was let loose with the controller and managed inadvertently to refresh the digitalk cahnnels - believing I was tuning a new DVD/Digital box. I now cannot get any of the above - neither, earlier today, could my Kitchen TV receive them. My postcode is CT18 8HU and whilst we have a Lyminge transmitter I think I am getting the signals from DOVER B. My main TV (SONY KDL-40V4000) will not let me select individual Muxes just allows the selection of a channel number.
Hope this is clear.
Thanks John

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John Carr's 1 post GB
Friday, 30 December 2011
3:30 PM

Lost Mux2 quality; on 'main' set.
Location: TW18, Xtal Palace.
RF amp in-line, near set.
Second/third sets on digiboxes, waaay down the line from the amp/splitter -- about 30 metres and on 'hookey' cable with nasty junctions.

Symptoms: Philips integrated 42" flatscreen - Mux2 (ITV, etc.) severe signal degredation, unwatchable! Rest Other channels OK. Usually all are fine apart from pizza delivery mopeds buzzing by. RF amp in-line, near set.

Worse, the digiboxed TVs at the far end of the line are fine!

Has the Mux2 signal from Xtal palace dropped, or has my ant. wandered I wonder; such that the edge conditions for Mux2 dropped of the, um, er, edge?

Please tell me that the Mux2 signal is degraded -- temporarily.


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Stu's 1 post GB
Dave Lindsay

4:17 PM

Stu: If it is a variable amplifier, then I would adjust it and see what you get. It could be that the amplifier is amplifying the signal plus noise picked up in the cable from the aerial. As the Philips set is but a short cable's length from it, it will be getting pretty much all of what the amp is putting out. Yet the other receivers will be getting less due to the losses in the 30 metre cables.

If it's not a variable amplifier, then try (as a test) connecting the Philips directly to the aerial (without amplifier and without splitting it for feeds to the other two devices). Is it better? Does the signal strength/quality meters show improvement?

Note that signal strength is of much less importance than quality. A strength could be 50% (for example) with 100% quality and so long it is solid, then there is no degradation in picture quality (because it's the quality that does matter). What I'm saying is that the objective is not to get the strength to go as high as you can get it. Indeed, too much signal can be bad, as explained here:
Freeview signals: too much of a good thing is bad for you | - independent free digital TV advice

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Dave Lindsay's 5,724 posts GB
Sunday, 8 January 2012
7:02 PM

Had trouble with freeview pixelating on all channels after playing blueray disc. The problem seems to have been that the TV stayed on HDMI input so poor signal resulted. Checking connections is relevant but also check input on hand controller.

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Brian's 1 post GB
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