16 years ago
New to this group.
We have the now common set-top box for digital terrestrial TV and
We get a lot of intereference: Picture break-up and loud clicks in
the sound. Sometimes making a programme unwatchable. We have managed to
reduce this: The aerial has been upgraded, and there's a filter on the
mains socket supplying the AV equipment.
However, we get serious problems when we have a fan running, the
washing machine is on, or we run the hot tap (It's one of those that
turns on a heater to heat the water as you use it).
I'm not sure whether the appliances concerned are generating radio
waves, or are spiking the mains supply.
From the research I've done, the next step to getting a clean signal
is upgrading the aerial cable, filtering the appliances in question, or
providing a dedicated (shielded) ring main for the AV equipment.
The first and last options are going to be a bit tricky, since the
aerial cable is routed in walls and all sorts, and I'm not convinced that
a decicated ring main will be cost-effective.
Is it possible to put chokes or filters of some sort on the
offending appliances? If so, advice on how to do it would be most welcome
(240v 50Hz supply).