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Expecting 4G interference? Tests now show that you have a one in 300 chance

Remember the scare stories in the papers? Millions of homes will have problems when 4G starts... Even the Ofcom figures suggested 760,000 homes would have problems. The 4G tests suggest the just 90,000 homes will need to fit a filter.

Remember the scare stories in the papers?  Millions of homes wi
published on UK Free TV

Looking back the the original posting, Ofcom moves to protect Freeview interference from 4G mobile, we can see the Ofcom suggested that:

Of the 16.3 million UK homes with a standard (unamplified, unshared) Freeview reception, 110,000 (0.67%) would be effected.

Of the 5.2 million homes using communal aerials systems, 550,000 (10.6%) will have problems.

Of the 5.6 million homes using amplified Freeview reception, 100,000 (1.8%) will experience problems.

Today, at800 have published the results of the tests in London, Brighton and Hove and York - at800 updates estimate of likely impact of 4G at 800 MHz on Freeview:

"Following tests conducted across the country, at800, the organisation responsible for protecting Freeview when 4G at 800 MHz is rolled out across the UK, has provided a new estimate of the likely scale of the impact. If national rollout reflects the results seen during its tests, at800 expects no more than 90,000 households, with Freeview as their primary TV service, to experience disruption caused by 4G at 800 MHz. Whatever the level of disruption, at800 is ready to restore Freeview to viewers.



at800 has now sent postcards to households in London and the surrounding areas in preparation for the activation of 4G at 800 MHz masts over the coming weeks and months. at800 is also sending postcards to other areas of the UK ahead of masts switching on. at800’s mailing does not mean that 4G services will be available to consumers. For information about the availability of 4G services, people should contact their mobile operators.

In London, in particular, Freeview received from the Crystal Palace transmitter is unlikely to be affected by mast activation because of the strong terrestrial television signal and its relatively large frequency separation from 4G at 800 MHz. However, at800 is sending postcards and running a publicity campaign to ensure anyone who does experience new disruption to their Freeview service knows how to get in touch."

So with 26.50 million TV households in the UK (see Monthly universe summary - BARB) 90,000 represents 0.340% of them - that's a ONE IN THREE HUNDRED chance.



It seems that you are most likely to need a filter if:

a) you are a long way from a high power Freeview transmitter; and

b) you are very close to a 4G mobile phone mast; and

c) you are using a booster.

That's good news for Freeview viewers.



If you have had a postcode from at800 - see Received a postcard from at800?



Help with TV/radio stations?
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In this section
Ofcom announces 700 MHz clearance schedule 2017-201
When will I get a new Freeview aerial because of even more mobile broadband? 2
Do not forget that 4G starting soon in 20 cities and towns really soon3
Using UHF channels C61 to C69? Time to retune4
Two final Freeview retunes in Scotland on 24 and 31 July 20135
800MHz band cleared by Digital UK - ready for nationwide 4G use6

Comments
Saturday, 2 November 2013
L
LouiseB
3:54 PM
Gillingham

I find it quite ironic that the muxes I have been receiving poorer and poorer reception from for the last few weeks (months in come cases - and completely disappearing at times since 28th October!) are the ones with reported interference from 4G when tuned to Crystal Palace; BBCA, BBCB and ArqA!
But yet according to at800 website I live well outside of the interference area but yet I am surrounded by phone masts, from multiple operators on all sides.

link to this comment
LouiseB's 8 posts GB
M
Michelle gass
8:47 PM
Ayr

Hi, our reception has been breaking up since the storm down south. We live in Ayr, South Ayrshire, any ideas?

link to this comment
Michelle gass's 1 post GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:33 PM

Michelle gass: Two things - check that your aerial and cables are working properly.

Check your signal levels - if your using your local transmitter, its only a km away - it could be the signal is way too strong.

link to this comment
MikeB's 2,575 posts GB
Tuesday, 5 November 2013
K
Ken Campbell
2:32 PM
Swansea

Hi there, we have experienced picture break up, freezing and 'poor or no signal' messages from time to time. I am not sure if this is because of 4g at88 or problems with the transmitter, we have not been notified of the presence of a 4G mast.. We receive our signal from the Kilvey Hill transmitter - at SA18NH (Swansea). Our aerial is fairly new (4 years) and is high gain type with a booster. Any ideas please?


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Ken Campbell's 7 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

3:08 PM

Ken Campbell: your 1km from your transmitter! Although the checker reckons your reception should be dodgy, I suspect you could get a signal with a bit of wet string.
If you can, check your signal strength , and ditch yyour booster(why did anyone think you'd need that?) if poss. If you search this site, type in 'too much of a good thing' and it will tell you all about it.

link to this comment
MikeB's 2,575 posts GB
M
Michael
sentiment_satisfiedGold

3:41 PM

Ken Campbell: Did you actually pay someone to install a high gain aerial and booster? Have you had these problems before you even heard of 4G?

link to this comment
Michael's 358 posts GB
K
Ken Campbell
10:41 PM
Swansea

Michael: Hi Michael, Yes to both. We are located in a small hollow and therefore signal not very strong.

link to this comment
Ken Campbell's 7 posts GB
K
Ken Campbell
10:50 PM
Swansea

MikeB: We tried putting the Aerial in the attic at first - terrible signal. The installer did some tests and concluded that Hi gain with booster is necessary for our location. Will search site as you suggest.

link to this comment
Ken Campbell's 7 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:57 PM

Ken Campbell: Have you actually checked the strength of your signal? Even though you are in a hollow, you are sooo close to the transmitter that an over strong signal might look like too weak a signal, at least at first sight.

If you want to test this, just take out the aerial lead from the wall, and leave it trailing from the back of the TV - it will act as a sort of mini aerial. Be interested to see the results.

link to this comment
MikeB's 2,575 posts GB
K
Ken Campbell
11:07 PM
Swansea

MikeB: Did as you suggested - trailing aerial lead results in No Signal.

link to this comment
Ken Campbell's 7 posts GB
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