Thank you, Wayne! At least we know we're not crazy :-) Nick / N6OL
On 3 January 2017 at 13:45, Wayne Burdick <[email protected]> wrote: > This is on the KX3 firmware list. I'll move it up a notch. > > Wayne > N6KR > > > On Jan 3, 2017, at 12:16 AM, David Anderson via Elecraft < > [email protected]> wrote: > > > Nick, > > > > Thank you for bringing this up. > > > > I never did get a satisfactory explanation, I contacted support too but > that didn't get me anywhere either, I don't think they understood my > question, which is quite simple really, why can't we get the same bandwidth > in Data mode as in SSB mode? I think it's a simple oversight, but nobody > seemed interested in acknowledging it or fixing it. > > > > > > 73 from David GM4JJJ > > > >> On 2 Jan 2017, at 23:54, Nicklas Johnson <[email protected]> wrote: > >> > >> Jörg in the Elecraft KX3 group on Facebook had an interesting > observation: > >> with WJST's waterfall, if the "flatten" mode is on, it produces some > >> unusual artifacts in the presence of sharp spectrum drop-offs, and > indeed > >> if I turn off the "flatten" feature and manually set the zero point for > the > >> waterfall, the artifacts go away. > >> > >> It's still an open question as to why the data-a mode has a steep > drop-off > >> at 400Hz when the PBT settings on the rig would seem to indicate > otherwise, > >> and the same drop-off isn't there in USB mode. > >> > >> I see searching on "400 Hz" that GM4JJJ had the same question here on > the > >> last back in July 2015, but never really got an answer. I basically > have > >> the same question as this one: > >> https://www.mail-archive.com/[email protected]/msg183837.html > >> > >> Nick > >> > >> > >>> On 2 January 2017 at 12:06, Nicklas Johnson <[email protected]> wrote: > >>> > >>> I'm seeing some unexpected audio artifacts when using DATA A mode with > the > >>> latest production firmware on my KX3, on all bands. This is something > I > >>> observe when the PBT BW is set all the way wide (4KHz) and FC is > centered. > >>> > >>> In DATA mode, there's an audio drop-off between 200 and 325 Hz, with an > >>> almost completely dead audio "hole" between 250 and 300 Hz. Then > there's > >>> some additional noise between 350 and 500 Hz. > >>> > >>> If I switch to USB mode (with no EQ or audio effects applied, > naturally), > >>> all of these artifacts go away, and it's perfectly smooth across the > >>> spectrum. No drop-off, no noise. > >>> > >>> Pictures of the waterfalls for comparison here: > http://imgur.com/a/AjHu4 > >>> > >>> Am I doing something wrong, or is there something I should check? I've > >>> taken the usual steps, but it's plausible I've missed something. > >>> > >>> Nick > >>> > >>> -- > >>> *N6OL* > >>> Saying something doesn't make it true. Belief in something doesn't > make > >>> it real. And if you have to lie to support a position, that position > is not > >>> worth supporting. > >>> > >> > >> > >> > >> -- > >> *N6OL* > >> Saying something doesn't make it true. Belief in something doesn't > make it > >> real. And if you have to lie to support a position, that position is not > >> worth supporting. > >> ______________________________________________________________ > >> 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] > > -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. ______________________________________________________________ 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]
