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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: B130RJ, BL81WE, BA129DD, TS249LG, ML85BE, CH662PH, CT154EU, BB111LA, BT515PF, PE126TP.

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
Friday, 28 June 2013
W
William Carter
6:26 PM
Peacehaven

Hello,

Have used 37" Samsung Smart TV since March 2012 with perfect reception. (Location Peacehaven, using Whitehawk transmitter)
Have recently started to experience sudden Bit error surges from 0 to 2000 resulting in temporary blocking/freezing/loss of signal, this is especially on the HD channels.
Signal strength is consistently between 85 to 90 on HD and better on normal channels. Aerial and cabling all new (double shielded cable).
I haven't installed any new electrical equipment recently, so can't thin what might be going on?
Thanks for any help..

link to this comment
William Carter's 8 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

8:13 PM

William Carter:

Since the breaking up is worse on HD, and you say the strength is even higher on SD, it sounds like your signal strength is too high. Since your only 9km from the transmitter, thats another indication that the strength is too high for the tuner.

Signal strength should be lower than than you've suggested - 75-80% is fine (my PVR is on 93% and is ok, but its near the limit). Ironically, your lovely shielded cable is not helping, since a better signal is something you might be better off without!

Bypass any booster, and have a look at this:

Freeview signals: too much of a good thing is bad for you | Digital switchover | ukfree.tv - 10 years of independent, free digital TV advice

There seems to be loads of people having similar problems - perhaps the retune has pushed a lot of systems over the edge, but I'm surprised it didn't happen at switchover.
(PE12QN)

link to this comment
MikeB's 2,579 posts GB
S
Sadie Passmore
8:21 PM
Glasgow

I enjoy watching old shows ,eg.lovejoy,ballykissangel etc. but find most annoying as I get extra 2/3minutes of previous show "& lose the end of recorded show !! I cact change timer as its preset PLease help ####!!

link to this comment
Sadie Passmore's 2 posts GB
W
William Carter
8:41 PM
Peacehaven

Dave Lindsay and MikeB:

My set-up has been working flawlessly since switchover well over a year ago, until a couple of weeks ago. So doesn't this (together with similar complaints from nearby) suggest a transmitter problem?
Any idea which firm or authority is responsible for the local transmitters, so as to contact them?



link to this comment
William Carter's 8 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

8:59 PM

William Carter: It's not necessarily a transmitter problem.

It may be, as I suggested in interference from another transmitter such as Dover. Due to atmospherics the signals of another transmitter may be travelling further and interfering with the local ones.

The Digital UK predictor suggests Whitehawk may be "variable", so, whilst such systems must always be taken with a pinch of salt, it could be an indicator that at times the signals from another transmitter may be too great.

That said, you appear as if you might have line-of-sight, or not be far off. This makes me wonder why the Digital UK system "thinks" your chances are way below excellent.

There is a test of 800MHz 4G mobile base stations in the Brighton area. I'm not sure whether it stretches as far east as Peacehaven. You might want to give at800 a ring, which is carrying out the test:

at800 Brighton 4G test

link to this comment
Dave Lindsay's 5,724 posts GB
Saturday, 29 June 2013
W
William Carter
8:11 AM
Peacehaven

Thanks for your advice, Dave.

Have been in touch with at800 and they say they haven't been running the test for a few weeks now, and anyway Peacehaven is not a problem area - they say.

Perhaps I should try an attentuator? But as the problem is a sudden Bit error surge, with scrambled or loss of image/signal lasting for a few seconds, followed by normal resumption of signal and picture - perhaps an attenuator is not the answer?

link to this comment
William Carter's 8 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:22 AM

William Carter: Refer to the page for the Newhaven transmitter as there has been yet another report of the same problem.

I'm not an RF engineer, but I am thinking that this must interference from a distant transmitter caused by the inversion effect which is where signals that would otherwise go up into space are reflected back down to earth. There's nothing you can do about that.

In the days of analogue, the image of the interfering transmitter may be visible over that of the local one, or at least there would be bad horizontal lines. With digital it may be able to tollerate it to a degree but eventually - due to digital being an all or nothing system - it will be too much and the picture is lost.

You might be able to tune to Rowridge, temporarily, if you can receive its signals with your aerial pointing a little clockwise; they might not be being interfered with.

link to this comment
Dave Lindsay's 5,724 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:23 AM

William Carter: Look in your 800s for Rowridge's channels. BBC One from Rowridge is on C24 and all others are in the 20s.

link to this comment
Dave Lindsay's 5,724 posts GB
W
William Carter
11:39 AM
Peacehaven

Very much obliged Dave, for your help. Will follow up on that advice..

link to this comment
William Carter's 8 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.

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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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