On 6/29/2020 5:09 PM, Dave Cole wrote: > I have some info on using the SDRPlay as an RFI tool at: > > https://www.nk7z.net/sdr-rfi-survey-p1/ Dave's methods are unique and quite powerful. Studying the material on his site is a very worthwhile exercise. There's also good stuff on my site. k9yc.com 73, Jim K9YC