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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:



There are two main causes of this type of intermittent 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.



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In this section
Which free digital TV system will give me the most reliable reception?1
High pressure causing channel loss through "Inversion"2
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Two frequency interference 5
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Comments
Wednesday, 11 February 2015
J
jb38
9:28 PM

Jean : Should the problem remain after having carried out the various tests as suggested by Dave Lindsay, could you please give an update on the brand model of the box in question.

link to this
jb38's 6,325 posts Platinum Platinum GB
J
Jean
9:42 PM Louth

Thanks again, Dave. Sorry to be taking so much of your time but I really appreciate your help and advice.

Forgive me for being so 'thick' but what do I have to do with the battery-powered AM radio in order to locate the source of the interference please?

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Jean's 4 posts GB
Jean's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Saturday, 14 February 2015
Dave Lindsay
6:22 PM

Jean: I suggest you try the box in different rooms and report the findings here. Further suggestions can be made.

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Dave Lindsay's 5,442 posts Platinum Platinum GB
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