External interference on Freeview
This can be difficult to diagnose because external interference tends to have the same effect on pictures and sound as other issues such as weak signals and weather-related problems. With external interference you may notice a definite start, after which the problem occurs continously, or specific times when the interference does happen and when it doesn't.
What to do
To help narrow down the source of the problem, you should check the following:
- Ensure that weak signals, overload or weather are not the cause of the problem.
- Take note of how and when the problem occurs - is it only at certain times? How frequent is it? How long does the problem last? Are only certain channels ever affected?
- Watch and listen out for any machinery operating nearby, and see if the problem stops when it is turned off.
- Is FM/AM radio affected precisely when your Freeview reception is disrupted?
- Are neighbours having the same problem?
- If you have more than one Freeview box or TV, is the problem more prevalent on one than the other? Older models are more prone to ‘impulse' interference. If you are near a busy road, or can often hear machinery, drills etc. when the reception is disrupted, it's helpful to know if your equipment is unduly sensitive. If you only have one box or TV, it may be helpful to try and borrow another, modern, Freeview box to test this out.
For more detailed help check our Factsheet or use the Problem Assistant in the right hand navigation on this page.
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