> Bob wrote,
> I don't know if this will help your problem but here is my experience.
> My neighbor's garage door would open and close when I was on 10m CW.
> didn't help, but we put a disc ceramic bypass capacitor across the leads from
> inside (manual opening) switch for the door. This cured the problem. It
> wires for the switch were a pretty good 10m Rx antenna.
The point is to consider if a sensitive point might be high or low
impedance. If it's low, a shunt capacitor won't do much, a series
inductor will so the ferrite works - if it's high, the shunt
capacitor has the dominant effect.
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