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By providing a full postcode (such as W1A 1AA), national grid reference (for example SE123456) or latitude, longitude pair (like 54, -0.5) this page will provide a map, terrain plot and detailed information of the location showing the UK and RoI television transmitters that it is possible you receive Freeview, Freeview HD, Youview, BT TV and Saorview from.
 

(Don't know your postcode? Find it at Post Office Postcode finder).

UK Free TV uniquely shows you transmitter coverage maps, aerial to transmitter terrain plots, the closest 10 mobile phone masts (for possible 4G-at-800 interference) as well as tabulated information (sorted by direction, by received signal strength, by frequency, by service names or by transmitter name).

Sample prediction images

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See sample prediction pages


Click on these links to see how this page looks with these sample postcodes: BS138SD, KW14RT, NE108QQ, TD57JY, SO508HE, BA80DF, MK62PT, FY77NH, L181HA, LL143EP.

Please note

These predictions are based upon a rooftop aerial and depend on the suitability of the aerial, the distance to the transmitters, the power of their signals, the postcode area, and local terrain.

Comments
Monday, 22 May 2017
G
Graham Jones
3:59 PM
Alloa

The aerial is in the loft and we had good reception on all channels until quite recently. We now have several channels with either no signal or break up intermittantly. I have retuned from scratch without any difference being made there are no new electronic items in the home. All the channels are on Black Hill COM4 they are channels 10, 20, 66 etc.

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Graham Jones's 1 post GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:10 PM

Graham Jones: Your just 31km from the transmitter (Black Hill) - so its unlikely to be a problem with you getting a signal.

Check the signal strength - is it too high or too low. A month ago you had a retune event, and it could be that signal levels have risen at that point, and now its a bit high on some muxes, hence the 'no signal', etc.

But if you signal levels are low, then its certainly your system - so check for frayed cables, loose connections, etc.

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MikeB's 2,579 posts GB
Friday, 26 May 2017
P
paul denning
4:59 PM
Bristol

getting break up on channels on Multiplex COM4 - SDN - SDN Ltd - ilchester crescent transmitter

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paul denning's 4 posts GB
Saturday, 27 May 2017
MikeP
sentiment_very_satisfiedPlatinum

10:28 AM

Paul Denning:

There is no fault reported at the Bristol Ilchester Crescent transmitter. Check your aerial cables and connections. Also check you signal strength, if it is above 85% then search this website for 'too much of a good thing' as too high signal will cause your problem.



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MikeP's 3,056 posts GB
P
paul denning
6:27 PM

paul denning: the breakup cleared after a few hours

link to this comment
paul denning's 4 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

8:31 PM

paul denning: You very close to the transmitter, and MikeP rightly suggested too high a signal. Just because the signal has stopped breaking up does not mean its cured - it could just be that high pressure etc has pushed signal strength above the point where the tuner is happy. But its probably going to happen again.

link to this comment
MikeB's 2,579 posts GB
Sunday, 28 May 2017
P
paul denning
7:44 PM

MikeB: yes I understand what high pressure does to tv signals - but would expect it would happen to more than one mux at a time

link to this comment
paul denning's 4 posts GB
Monday, 29 May 2017
MikeP
sentiment_very_satisfiedPlatinum

10:47 AM

Paul Denning:

It is not just high pressure that causes problems such as you report. Being so close to the transmitter means that you may well be receiving too much signal which overloads the tuner in your equipment, so causing break up. It will vary by small amounts with different weather patterns, but the weather is unlikely to be the main cause of your reported problems.

Please chack the signal strengths for all the available multiplexes. If they, or any one of them, is above 85% then you have too much signal and it needs to be reduced by fitting an in-line attenuator. They come in various strengths so try a 6dB one first. They are quite cheap to buy on line and be prepared to fit a stronger one of 12dB if necessary to give good performance. Your signal strengths must be between 55% and 85% for SD multiplexes and between 65% and 85% for HD multiplexes.



link to this comment
MikeP's 3,056 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

11:15 AM

paul denning: All I meant was that a very slight change would mean that your signal would change in a way that would be noticed - it could be any variable.

As MikeP says, get a load of attentuators - you can put them in series, to get the right level. 6km is very close to the transmitter, you've been lucky it hasn't happened before.

link to this comment
MikeB's 2,579 posts GB
P
paul denning
5:18 PM

MikeP: thanks for your advice -I will see what happens

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paul denning's 4 posts GB
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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