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Official aerial installers guide to the TV spectrum future

If you want to know what the - official - future holds for the UHF spectrum and how this will change the old advice on which aerial to use, you can download this book for free.

Picture failure caused by LTE interference  Photograph: DTG
Picture failure caused by LTE interference Photograph: DTG
published on UK Free TV

This is an excellent resource if you are involved in an amateur or professional way. It includes the upcoming 700MHz clearance, Radio Equipment Directive (starts June 2016), TV White Space, Local TV as well as Interference mitigation help and details about the future of DTT.

R-Book 6


To download go to this DTG page and click "Download" next to "An installers' guide to the future of UHF spectrum (8 October 2015)"

Help with Freeview, aerials?
My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound o1
My ITV/C4 Freeview channels have disappeared - what can I do? Is it my SCART ca2
I have now lost all signal can you tell me what the problem might be?3
Our digital signal for ITV has disappeared in the last week - can you tell me w4
Do all freeview set top boxes have the same problems - they freeze up get stuck 5
In this section
Which free digital TV system will give me the most reliable reception?1
High pressure causing channel loss through "Inversion"2
Digital Region Overlap3
Freeview reception has changed?4
Two frequency interference 5
Single frequency interference6

Monday, 9 November 2015
Richard Baltruschat
12:41 AM

Can someone please tell me the truth,as I have or used to have a good loft aerial,but in the lst 2 years or more Sany transmitter have reduced the signal,now i cant get about 8 channels such as Itv 3,challenge,yesterday on freeview,there are others i cant get,How on earth can i have the same power of signal now,as when digital changed over for 2 years or more i could get these channels.Without having to pay more of which im sure the signal outputters are in close contact with the industry to drive up sales by making people like me pay more.If this is not the reason please inform what i can do Tel 07799787248 Richard

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Richard Baltruschat's 3 posts US
12:03 PM Trowbridge

Richard Baltruschat:

For us contributors to this site to have any chance of offering meaningful advice we do need to know where you live and hence which transmitter you should use. This is best give with a full post code, or that of a very nearby public building, so we can then see your location in relation to transmitters and hills, etc.

Further advice depending on feedback.

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MikeP's 215 posts Silver Silver GB
MikeP's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Thursday, 31 December 2015
Tuesday, 19 July 2016
meirion jenkins
7:40 AM Wrexham

Meirion jenkins .141cae gwilym lane cefn mawr wrexham LL14 3pg.
good aerial . real bad problems, breaking picture on freeview , wonder if its a 4g mast ,not all the muxes 19.7.16

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meirion jenkins's 1 post GB
meirion's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Richard Cooper
8:51 AM Norwich

Meirion jenkins:Hi, Meirion. Yes, Digital UK does indeed say that you should be using the Cefn Mawr relay transmitter. The main group of high -definition (HD) channels is transmitted on UHF channel 60 which is a channel that could suffer from 4G interference. If it is this group of channels that is causing you problems you need to contact the 4G interference people who are called 'at800'. This organisation will send you a FREE filter to put in-between your aerial lead and your television. Their website address is here for you:

at800 | 4G & Freeview | 4G interference | 4G Filters | 800 MHz

Good Luck and let us know how you get on. Richard, Norwich. I am sorry but I am unable to communicate in the Welsh language.

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Richard Cooper's 447 posts Gold Gold GB
Richard's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
10:48 AM

Meirion Jenkins: if you are experiencing interference to the COM muxes it is likely that the current weather conditions are enabling signals from Redruth in Cornwall and/or Wenvoe in South Wales to travel further than normal which then block reception of the COM muxes from The Wrekin in your area. In this case reception should be restored when conditions return to normal.

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KMJ,Derby's 1,811 posts Gold Gold GB
Saturday, 4 February 2017
Susan Aldersley
5:27 PM Sale

I used to get a good tv signal until last summer when I started having a lot of interference on the picture and sound. I got an aerial installer who took down my old digital aerial and put up a new one and guess what it's just the same. So I paid him for nothing, he didn't know why I was having problems and put it down to my TV! My post code is M33 3EA.

I'm going to get him back because I am not satisfied. Any suggestions as to why I am having problems?

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Susan Aldersley's 1 post GB
Susan's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
6:46 PM

Susan Aldersley: What do you actually mean by 'a lot of interference on the picture and sound'? To be fair to the installer, your old aerial might well have had a problem, but it might not be the same as your current problem.

If you mean the picture kept breaking up, then thats generally because the signal is either too poor, or its too good. So you need to check on BBC1, on C4, etc for signal strength and quality.

Assuming that he put in decent cabling, etc, and that everything works OK, its probably not a poor signal. But since your just 24km from Winter Hill, it might well be too high a signal. I'm twice that distance from my transmitter, and I have to smother the signal strength a bit so that I dont have a problem.

Check the signal strength, and if its 80% plus, then search for 'too much of a good thing' on this website, which will tell you how to cope with it.

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MikeB's 2,083 posts Platinum Platinum GB

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