Loved my K3 on 160M this contest weekend. Obviously, "160M" and "QRN" go hand in hand, and there was plenty of it, mostly thanks to my local power company. I did notice, on my awesome P3, a pronounced, gently-shaped rise in noise just below 1.8 MHz. It was 20-30dB louder than the average -115dB noise level. Sure glad it wasn't in-band.
EMI problems are everywhere. Maybe someone can help the EPA: <http://www.interferencetechnology.com/no_cache/technologies/antennas/contracts-awards/contracts-awards-from-home/article/epa-needs-help-with-emi-problem.html> EPA Needs Help with EMI Problem 02/08/08 10:39 AM The Environmental Protection Agency (EPA) has posted a request for quote on the Federal Business Opportunities (FBO) Web site looking to purchase an Electromagnetic Field Compensation System. The agency says the system is needed for the suppression of EMI which is limiting the use of a newly purchased scanning electron microscope. To read the solicitation and learn more about this opportunity visit the FBO web site. 73, Steve NN4X On Sun, Nov 28, 2010 at 11:23 AM, ab2tc <ab...@arrl.net> wrote: > > I am aware of that but there is no requirement and no testing below 30MHz. > Another correction: The statement is only required in the operator's manual. > > AB2TC - Knut > > > Joe Subich, W4TV-4 wrote: >> >> >>>As pointed out to me in a private E-mail to me this should be >> > Part 15. This is the regulation that enables manufacturers >>> to ship anything they want as long as they plaster this message >> > on the back of the product: >> >> Part 15 does not allow manufacturers to intentionally ship anything >> that radiates excessive EMI. All microprocessor based consumer >> equipment is required to be tested/pass for both radiated and >> conducted EMI. This is generally done with prototype production >> equipment. The "Part 15 statement" does not relieve the owner and >> manufacturer from responsibility for the radiation and the FCC >> should get involved with complaints about interference to licensed >> stations. >> >> 73, >> >> ... Joe, W4TV >> >> <snip> >> > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Plasma-TV-Noise-any-ideas-on-how-to-filter-it-out-tp5775346p5781922.html > Sent from the [HAM] mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > ______________________________________________________________ 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
