Not cheap but when in doubt, buy the most expensive.
Generally speaking I tend to agree when it comes to RFI, but I had
an interesting experience several years ago. I bought at $42 light
dimmer that claimed to have effective RFI filtering. It wiped out
most of the HF bands and could be heard well into VHF. Thinking I
had a defective unit, I exchanged it for another of the same model.
Same problem! I then returned it and bought a $6 dimmer which I was
unable to detect on any band. It has been long enough that I don't
recall the brand or models. I wish I did.
73,
Paul
--
Paul Kelley, N1BUG
RFI Committee chair,
Piscataquis Amateur Radio Club
http://www.k1pq.org
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