Hello Chip, I did a lot of testing of KX3 power supplies, and the PAE is the quietest, next to a linear power supply.
I had a fair amount of EMI problems, too, until I put a big ferrite bead (Fair-Rite 0431176451) on the DC output wire. I wound 6 turns though the core, right at the power plug that goes into the KX3. This brought the noise down to barely audible, totally tolerable. I bought the cores from Verical.com -- they had the best deal on them -- but they appear to be out of stock. Mouser's got them for under $8. These are the same cores that K9YC recommends in his "RF Interference to Audio Systems" paper. 73 Jeff n1kdo ---------- Forwarded message ---------- > From: Chip Stratton <[email protected]> > To: > Cc: Elecraft Reflector <[email protected]> > Date: Mon, 18 Jan 2016 19:38:50 -0600 > Subject: Re: [Elecraft] KX3 power supply > The PAE power supply works fine, but it still puts out enough hash that I > can't use my loop antenna near it. It is better than others? Probably, but > still not usable for me when near the receiving antenna. > Chip > AE5KA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
