I've also used that Samlex supply, with no sign of RFI. Scott. K9MA
---------- Scott Ellington --- via iPad > On Jun 20, 2016, at 8:17 AM, Marty Koszewski <[email protected]> wrote: > > I had the same issue. It was caused by my Powerwerx SS-30DV. After trying > a number of things to mitigate the noise, I ended up replacing the power > supply with a Samlex SEC 1235M. Noise gone. Problem solved. > > Marty - K1MTK > > > ----------------------------------------------------------------------------------------------- > > > > > Message: 20 > Date: Sun, 19 Jun 2016 23:55:59 -0500 > From: Clay Autery <[email protected]> > To: Elecraft Reflector <[email protected]> > Subject: [Elecraft] RFI on K3s > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > I am seeing a repetitive RFI source every 34kHz from somewhere less than > 20MHz thru 30MHz plus... > > See attached image. The amplitude alternates high/low every other > appearance. The overall amplitude is higher or lower depending on the > location within the spectrum.... Almost a sine wave function with a > VERY long period. > > Anyone want to hazard a guess as to what is causing it? I disco'd every > switch-mode power supply in the shack and adjacent rooms (couldn't do > the whole house as the XYL was home).... EXCEPT my Powerwerx SS-30DV PS > running the K3s/P3. > > Don't have a battery to run the radio on right now... > > > > -- > ______________________ > Clay Autery, KY5G > MONTAC Enterprises > (318) 518-1389 > > > > - > ______________________________________________________________ > 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] ______________________________________________________________ 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]
