On Wed,6/17/2015 4:55 AM, Marc Veeneman wrote:
When I connected station ground to the power supply that went away, I think it was a ground loop.
Wrong word, correct solution. The correct word is "bonding," and there ain't no such thing as a "ground loop." What there IS is a difference in potential between the chassis of one device and the other. When you bond chassis to chassis, you reduce that difference to a small value.
With these changes I now have no RFI from either one.
Proper station bonding is quite important, both for safety and to minimize noise. But a connection to EARTH, while important for lightning protection, is not part of a solution for hum, buzz, or RFI.
http://k9yc.com/GroundingAndAudio.pdf 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
