Hi Buly,

If the capacitor doesn't help across the wires, you might try putting a
capacitor from each wire to ground.  What kind of noise was it?  Hum,
tone, static ????.

Bob W. (I have to adjust my prop with a wrench.)



On Sun, 4 Feb 2007 14:53:00 -0500
Bulent Aliev <atlasyts@bellsouth.net> wrote:

> Since you guys are on the electric noise page:
> The other day I went for another short flight over the beach and again I
> had a persistent study noise in my headset after takeoff. On the
> ground with engine running it was fine.
> It stopped for a moment when I pushed on the prop pitch adjustment
> switch on the Ivo prop, than started again. I checked the brushes on  
> the prop and they are fine. it was suggested that the two floating  
> wires from the reversible prop switch to the brushes act as an  
> antenna. When I use the switch they get grounded? Installed a small  
> capacitor between the two wires, but had no chance to fly it again.  
> We are under a huge TFR for the Big Game. Did not have this problem  
> before. Maybe someone else had the same experience?
> Thanks.
> Buly
> CZ MK-IV
>
>
> --
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