Understandable and accepted. However this issue is part of a much bigger problem endemic to our society right now. EMC is a very specialised field, which even many average electrical and electronic engineers have only touched the tip of the iceberg. At consumer level detailed knowledge isn't required - as long as that contingent has access to the information it needs to remedy the issues at hand.

I only persist because we are rapidly approaching a tipping point whereupon the effects of the lack of market surveillance and enforcement will begin to affect large numbers of people. Getting a handle on this early may prevent widespread problems later. For folk in the countryside this is much less an issue (unless of course they are being affected by their own equipment) but in densely populated areas the aggregation of interference sources can build up to problematic levels quickly; consider high rise flat as one example at the extreme end of the chart.

The aim is simple; help and mitigate where necessary and prevent if possible. The more widely known this problem is the better it will be for everyone in the end. LED interference to FM, DAB and broadband is already more common than might first appear from a casual search of the internet.

Let's face it, no one wants their broadband compromised by their own electronics, much less someone else's. I already know of two cases of compromised broadband where a neighbour is responsible and refuses to do anything. You might be surprised to learn that overcoming such a scenario is much harder than you first think.

Best wishes.

See PM - flashing envelope on the left of "Forum Index" in the top menu.

In reply to a post by N_ge:

Thank you for that intellectual response. Are you an EMC engineer? Do you have any qualifications which are relevant to this discussion?

Actually, I have a lot of experience of RFI ... and there is at least one other here who also has significant understanding and experience.

Do you really think that regulation will sort out these problems? The answer is no because too many manufacturers ignore the requirements, as do a lot of users.

Its also possible to get a "noisy" unit due to a manufacturing or post-manufacturing fault. I saw that with a computer power supply and it was only discovered due to an Openreach engineer using some kind of "sniffer" probe. Prior to that I had established we had a time-of-day linked noise issue but had assumed it was nearby machinery.

It's embarrassing though, we work on RF and actually happened to have a LISN "mains interference tester" lying around so I was able to confirm it myself, the computer generated considerably more mains noise than another unit of similar age.