In article <569bde1d1djcgl@xxxxxxxxxxxxxxx>,
Jim Lesurf <jcgl@xxxxxxxxxxxxxxx> wrote:
Because they cause interference. Which can include interfering with
other users of similar items in homes nearby.
As time has passed, what is allowed in terms of 'powerline' output has
been extended for commercial reasons. Add this to the fact that home
mains wiring is *not* designed for carrying wideband RF, and many
mains-powered devices present a nonlinear load, and you will get
problems. Matter of luck and circumstances, but when throwing dice a few
million times you will sometimes get the result you didn't want.
However people may often get a problem without realising the cause. So
this can occur without people being able to diagose it and assess the
scope. Thus they won't report it, either.
Frankly, the way they were permitted is an example of the way OfCom now
works on the basis that "money talks to lawyers" rather than RF being
assessed by engineers. It relies on those who are adversely affected not
knowing why it happened. So, "few complaints" is take to equal "few
problems".
