George, The IC7300 was among the better commercial transceivers in terms of spurious emissions, clicks, splatter, etc. It wasn’t at the top of the list (the K3s is however), but was in the “better” category. However, Rob recommended a change in the CW signal rise time to no less than 6 milliseconds - I forget which menu item it was - but he criticized Icom specifically for a default setting that induced key clicks.
Take a look at this presentation - while it is titled “Receiver Performance What is the Limit Today” he mixes discussion on transmit composite noise with receiver performance. It was really eye opening for me. https://www.youtube.com/watch?v=GNh0wP9PlsM There are others on line as well. Steve AA8AF > On Jul 1, 2023, at 12:06 PM, George Thornton > <gthorn...@thorntonmostullaw.com> wrote: > > I think this was an Icom 7300 but I am not sure. > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On > Behalf Of Steve L > Sent: Saturday, July 1, 2023 8:47 AM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Field Day Operation > > I was wondering too about the huge signal in the center of the waterfall…. > Hopefully, the ARRL “Clean Signal Initiative” will help encourage > manufacturers to clean up these messy transceivers! > > I recently discovered several presentations by Rob Sherwood - famous for his > receiver testing. I was fortunate to get to meet him at Hamvention this year > and thanked him for his work. His new(?) message: CLEAN UP THE DIRTY > TRANSMITTERS. And he calls out specific models! BTW, Elecraft was NOT on > the lists, but it is surprising which ‘high end’ transceivers were. It’s > worth reviewing his presentations on the subject - and it kept me from a bad > upgrade! > > Steve > AA8AF > >> On Jul 1, 2023, at 9:44 AM, Wes <wes_n...@triconet.org> wrote: >> >> How about publicly shaming the guy whose signal is occupying the band in >> this photo? Or is that receiver overload? >>>> https://photos.app.goo.gl/wJrLrryYkPrh7t1C8 >> >> Wes N7WS >> > > ______________________________________________________________ > 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 Message > delivered to gthorn...@thorntonmostullaw.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 Message delivered to arch...@mail-archive.com
