Perhaps the noise isn't something the circuits are picking up as
much as the antenna is picking up something. Don't know about the
helicopters - I was always shy of those things - not sure why either.
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
> Electrical noise is unlikely to happen from a moving wire,
otherwise each
> wire inside any device would be a hazard.
> When you move it like in a magnetic field things are totally
different.
> Also, the moving parts in RC craft do seem to cause some strange
sort of
> interference i do not understand (especially helicopters it seems).
>
> ST
>
>
> On Tue, 17 Jan 2006 17:18:55 +0100, lcdpublishing
> <lcdpublishing@y...> wrote:
>
> > Yup, that's what I meant. Most of the stuff I make goes onto
> >
> > machines and they vibrate. So I suspected that if the machine is
> >
> > vibrating, that could cause this wire to vibrate which in turn
would
> >
> > create "noise" of some sort.
> >
> >
> > The only reason I suspected this is because of a bad experience I
> >
> > had many years back with radio controlled air planes. I had a
plane
> >
> > that would make spazy moves every once in a while. It was a
pain to
> >
> > fly (well, a challenge). Anyway, after a long time of fighting
the
> >
> > problem it turned out to be the throttle wire. It would rub
against
> >
> > the motor when the plane was in a certain attitude and this would
> >
> > cause the servos to jump wildly. I recall the guys on the flying
> >
> > field telling me that it was "electrical noise" cause by that
metal
> >
> > wire rubbing against the metal motor. I added a small shield
> >
> > between the two and the problems went away. So, I took that
> >
> > experience and applied it to that little trace wire fix and
expected
> >
> > similar problems.
> >
> >
> > Chris
>