I have often wondered if the noise from a switching power supply would vary in intensity or other characteristics as the load changes. For example, during transmitting. In a single transmitter environment the user would probably not notice but in a multi-transmitter or SO2R station one just might.
Changes in noise floor might not always be “phase noise” from the other transmitter — could it be different emissions from a switching power supply under full load? 73, Doug, W7KF http://www.w7kf.com <http://www.w7kf.com/> > On Nov 19, 2017, at 6:42 PM, stan levandowski <sjl...@optonline.net> wrote: > > Yeah, me too. I bought it because I thought it would be "super clean" and > really small. But its contribution to my problem was pretty much unarguable: > Plug it in and I hear noise. Unplug it and I don't hear noise. The > instructions that came with it specifically stated that the Kx33 should be > placed the full length of the DC plug/cord away from the transceiver. I did > that but it didn't work for me. I tried different outlets around the house > too. I put chokes on it. No joy. > ______________________________________________________________ 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
