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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?
Will an aerial booster improve my freeview reception?1
Can I show Freeview in my gym or office?2
How do I update the channels on my ONdigital or ITVdigital box?3
Can I get a combined Freeview/Internet box?4
Are there to be any more Freeview channels?5
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

Monday, 15 October 2018
Clayton Taylor
8:32 PM

Hi Mike,

I checking again on Digital UK - Coverage checker with my post code, like you said as I type. There are two areas I'm checking, PLANNED MAINTENANCE & RECEPTION FORECAST & RETUNE DATES. It says, Planned engineering work this week on 22 main transmitters and 106 relays. When I looked at the detail, CARADON HILL isn't listed under Westcountry, so I assume all is o.k.

However, looking at the RECEPTION FORECAST it says under standard reception, GOOD for 21 CAHNNELS. Then under a tab below that, a tab called, CHANNELS AVAILABLE AT YOUR ADDRESS, which gives more detail. Under general entertainment only, I counted about 69 channels of which 17 channels are only rated GOOD = GREEN DOT & the rest, POOR/NO RECEPTION = BROWN/RED DOT.

So not so good after all for today & all still a bit confusing. The only thing which looks good is the retune date around APRIL/JUNE 2019, where all the channesl seem to have GREEN DOTS.

link to this
Clayton Taylor's 3 posts GB
Saturday, 24 November 2018
Brian Oliver
1:08 PM

I use the Westwood Transmitter on Freeview. Several mornings, most BBC Channels have pixellation and sound noise but other Channels do not experience this. This happens mostly in the mornings. Is there a problem with the Transmitter?

link to this
Brian Oliver's 1 post GB
Sunday, 25 November 2018
11:14 AM

Brian Oliver:

Please provide a full posy code so that we can examine the reception conditions at your location.

There are n o reported propblems with the transmitter at Westwoo, Bradford-on-Avon. So please check all you aerial connections. If there are plugs/sockets please unplug and then refit, that will clear any corrosion/oxidation from the contacts.

link to this
MikeP's 2,475 posts Platinum Platinum GB
Sunday, 9 December 2018
10:44 AM

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Gilberto's 1 post GB
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