> When I said the speed controller did not have any RFI
> filters fitted, I
> meant it was not using the separate, optional RFI and
> "dV/dt" filters
> offered as options by the manufacturer. I actually don't
> know if the
> controller has any type of RFI filtering inside.
>
> I have to agree that even performing to EMC standards, and
> I am sure this
> one is not, the RFI from this controller is absolutely
> unacceptable for weak
> signal reception. Just from the beginning I anticipated
> this would be a
> very tough RFI problem to deal with due to proximity and
> tremendous QRM
> levels.
What type of controller do you have? Who makes it? What is
the model?
They are all cureable, and many times all it takes is a
shield box with good filters. It is very easy to knock HF
noise down a hundred dB or more if the enclosure that houses
the controller and filters is built correctly.
73 Tom
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