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Freeview intermittent interference

When you get occasional sound loss or picture freezes

When you get occasional sound loss or picture freezes
published on UK Free TV

There are several different types of interference that cause problems. This page deals with the situation where:

  • Freeview reception is perfect or near-perfect most of the time
  • The audio on TV and radio channels mutes momentarily a few times each minute
  • The picture on a Freeview channel freezes a few times each minute

There are two main causes of this type of intermittent interference:
  • 'Induction' interference
  • Mobile phone interference

Induction interference

Induction interference is caused by mains-powered household devices that contain a large motor, such as:
  • Washing machine;
  • Tumble dryer;
  • Central heating pump or combination boiler;
  • Fridge;
  • Freezer;
  • Power tools (drills, jigsaws etc)
  • Vacuum cleaners;
  • Water pumps;
  • Automatic doors

You can identify if one or more of these devices is causing the Freeview reception problem by powering off the devices.

If one of these devices is causing the problem, then the reception problem can usually be solved by using a mains filter device and use it on the Freeview boxes mains connection.

Such as device is this: Maplin: 6-Way Flat Screen and HDTV Surge Protector and Mains Filter.

Mobile phone interference

If you keep a mobile phone by your Freeview box or digital television, keep it further away!

This also applies to other transmitters such as baby monitors, video senders, walkie talkies, and portable phones.

Help with Freeview, aerials?
How do I get a test card with Freeview1
I would like to know if it is possible to receive UK terrestrial Freeview servic2
I have been told I would receive too much singal from my Freeview tansmitter as 3
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In this section
Official aerial installers guide to the TV spectrum future1
Which free digital TV system will give me the most reliable reception?2
High pressure causing channel loss through "Inversion"3
Digital Region Overlap4
Freeview reception has changed?5
Two frequency interference 6

Thursday, 2 June 2011
6:27 PM

I want to watch free channel. I have satellite dish, sky+ satellite receiver and i check cable and change lnb, but still I don't get any signal. I really don't khown what to do. can you help me? I pay Tv license.

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Jurate's 1 post GB flag
Jurate's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Saturday, 4 June 2011
10:38 PM

I have a Freeview box and indoor aerial in the spare room, which has been fine for years. Since the Switchover this week (Scotland), I'm now having trouble getting a picture on bbc channels.

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S's 1 post GB flag
Sunday, 5 June 2011

5:35 PM

Jurate: Your TV Licence doesn't pay for your reception equipment. I would expect your dish is no longer correctly aligned.

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Briantist's 38,915 posts GB flag

5:42 PM

S: Yes, that sounds about right. You should use a rooftop aerial for reliable Freeview reception.

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Briantist's 38,915 posts GB flag
6:20 PM

I live in Osterley West London TW7.
For the last 3 days I have had no signal quality on ITV 1,2 snd its related multiplex channels.
I share a communal roof arial that has been upgraded to accept digital and my neighbours are not suffering any problems.
All connections appear fine.

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Bill's 1 post GB flag
Bill's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Wednesday, 8 June 2011
george forbes
7:43 PM

According to bbc news our analogue signal was switched off at midnight last night. I have retuned my stb as a first time set up and now receive all stations with 95% clarity with the exception of all bbc channels, none of them are watchable. I have reset mannual scan and auto scan all to no avail. I have a loft aerial I will have to reposition my aerial in the loft. I was also informed that there will be another change on the 22 June 2011.
KY12 7XU

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george forbes's 1 post GB flag
george's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Thursday, 9 June 2011
5:05 PM

Hi there,
Whenever I reset my digibox, then do a full scan all channels work fine for about 2 minutes then a box pops up saying '10 new services added' and all channels display 'NO SIGNAL'. Any ideas would be greatly appreciated.

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finn's 1 post GB flag
Friday, 10 June 2011
Saturday, 11 June 2011
4:36 PM

I am experiencing sudden losses of all digital channels, as well as a sudden degradation in analogue quality. What I see is that reception is fine, with good clear pictures and sound, and then suddenly I get a total loss of reception, for sometimes up to a day at a time. Freeview channels show "No signal" and analogue reception is very poor. the problem started about four weeks ago.

I had a new aerial fitted last year, and I am sure all hardware is OK. Any ideas?
Postcode RG2.

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saltydog's 2 posts GB flag
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