My finding was similar to Scott's. I noticed between one and two S-units increase in noise on a 10m dipole located within 40 ft. of the shack. I also noticed the same on 15m with a 40m dipole at the same distance. I added type 31 ferrite snap-on cores to the 240 VAC, the "high" DC voltage, and control lines at the power supply. Now, the noise is back to the ambient level which is still too high.
Now I can copy another level or two of signals I couldn't copy as well prior to adding the ferrite cores. BTW, that previous level of noise disappeared when I powered the amplifier down and not the PSU. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.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
