Gents, that’s my setup also with K3S #10125, and I’m convinced the Powerwerx SS-30DV is a stable, quiet, top-notch amp recommended by the fine people a Elecraft (it’s what they use on the road). However, thanks to some great advice from people here, I have eliminated the black-red zip cable from all uses in my station. Zip line, or for that matter, any parallel cable, like monster speaker cable, is highly susceptible to RFI. This was a lesson from the early days of stringing telephone cable. The solution: twisted pairs, and even better in 2016, shielded twisted pairs. So every power cable has been replaced in my station with shielded twisted pairs, further protected with ferrite snap-on beads. Even further, I’ve eliminated every switching power supply nearby. It has helped immensely. That said, some of those pesky slowly drifting S9+ noise bumps still live!
David A., KK6DA, Los Angeles I certainly hope you are correct. I love this little power supply. It keeps my K3s/P3 smack dab on 13.8 RX and no lower than 13.5 on TX@100W. But it will be check #1. Learned a long time ago not to make assumptions or NOT eliminate variables (when possible). 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 6/20/2016 6:45 AM, Drew AF2Z wrote: > I have a Powerwerx SS-30DV also. I think it is unlikely that this PS > would put out that kind of trash. I've found it to be very quiet even > listening with an endfed wire antenna within inches of it. > > 73, > Drew > AF2Z > On Jun 20, 2016, at 8:15 AM, Clay Autery <caut...@montac.com> wrote: > > On 6/20/2016 5:28 AM, Dave Cole wrote: >> Sometimes you can "get a feeling", where they are located by watching >> the timing... Do they drift in the morning, and after sunset, if so, >> the SMPS might be outside, on in a non temperature controlled area, if >> not it might be inside... >> >> Do they happen at set intervals? Time to do the power off test to your >> home and see if they go away... If you are lucky they will... >> >> If they do, bring the house up one breaker at a time, looking for the >> RFI to start... If not, then set up S-Meter Lite, look for patterns, >> then after a week or so of recording what is happening, take out a loop >> and start looking for it... > Thank you... I think I will TRACK when they are stable vs. drifting... > First, I need to find a good battery and QUIET float charger for the K3/P3. > > Lot of info in short reply. S-Meter Lite... Thanks! Got it now. > Need to research/build the loop(s). > > 73, > > ______________________ > Clay Autery, KY5G > MONTAC Enterprises > (318) 518-1389 David Ahrendts davidahren...@me.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
