On 9/22/2021 6:40 PM, Phil Kane wrote:
I second what Jim Brown posted earlier. It's a problem of front-end overload and/or audio rectification within the affected devices, not of the transmitter.
Yes, it's audio rectification, but I'll go to the mat about "front end overload" NOT being a primary cause of RFI (and I went to the mat with ARRL ten years ago and lost). Rather it's "the Pin One Problem," first noticed in the world of pro audio by a ham, the late Neil Muncy, ex-W3WJE. That's the failure to terminate cable shields to the shielding enclosure at the point of entry. EVERY rig I examined the last time I was at Dayton had Pin One Problems at their accessory connections. Nearly all computers, computer accessories, and consumer equipment has this manufacturing defect.
This is why proper bonding in our stations and ferrite chokes on wiring connected to victim equipment solve RFI problems.
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]
