Jim, Very interesting stuff! I've been looking for an answer to this question for a while but no answer yet: RF getting into my stereo cause it to produce a 60Hz hum. Why is that? Thanks, Carey, WB4HXE
On Fri, Mar 15, 2019 at 2:57 PM Jim Brown <k...@audiosystemsgroup.com> wrote: > As others have noted, EVERY conductor is an antenna, and most computers > and rigs are built with manufacturing/design defects that couple RF from > attached cables inside the the box to cause problems. > > Here is a tutorial on the topic, and an applications note for finding > and killing RF noise. The same ferrite techniques for killing noise > apply to killing RFI on cables in our stations. > > k9yc.com/RFI-Ham.pdf > > http://k9yc.com/KillingReceiveNoise.pdf > > And proper station bonding reduces RFI and solves other problems. > > http://k9yc.com/GroundingAndAudio.pdf > > 73, Jim K9YC > > > On 3/15/2019 5:25 AM, Lester Sousley wrote: > > I suspected RFI, but was confused as to why only on 30 meters. I do use > > chokes, but only on those cables connecting to antennas. Thanks for the > > reply. > > > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel > -- Carey Fisher careyfis...@gmail.com
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