I do also have multiple turns of the p/s power cord wound through a
large toroid, just for good measure. I investigated the Powerwerx at one
time when I was having some RFI problems, comparing it side by side with
a linear supply, and just didn't find the ss-30dv to be a problem. My
main problem was the DSL modem, and perhaps copper phone lines, now
eliminated by Fios internet.
73,
Drew
AF2Z
On 06/20/16 07:59, Marc Veeneman wrote:
My PowerWerx supply DOES generate those drifting noise spikes, ruining CW on 80
meters for me. I have yet to find a 13.8 volt switching supply that can
provide 25 quiet amps. I've gone entirely to batteries rather than use quiet
but inefficient linear supplies.
Now I only have SMPS noise when recharging the batteries. So I leave that
for non-hamming hours. More testing is needed, but I did find one SMPS for
LiFePO4 batteries that seemed RFI free. It's an Optimate brand product but
only produces 5 amps.
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