When QRM and QRN were codified, there was little or no RFI. I try to use “RFI” instead of “QRM” or “QRN”. Everyone understands that.
wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 3, 2016, at 4:12 PM, Mike <[email protected]> wrote: > > I have no way of verifying this, and I only date back to the 1950s as both > ham and commercial operator. But always understood that the N (as in QRN) > meant the interference was from 'Natural' sources and the M (as in QRM) meant > that the interference was from 'Man-made' sources. > Guess only those who formulated the original Q-codes could tell us.....and > they will all be SK by now! > 73 de Mike, zl1mh. > ______________________________________________________________ > 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] ______________________________________________________________ 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]
