This is a huge undertaking, and the MCU config variables are a moving target. But it is (low) on my list of possible K3 Utility enhancements. Dick, K6KR
Sent from my iPhone On Jul 14, 2010, at 12:41 PM, Guy Olinger K2AV <olin...@bellsouth.net> wrote: > Would it be possible to add a function to the utility which creates a > file which lists all the K3 settings and configurations and control > settings when it is invoked? Something that could be cut and pasted > into an email or attached? This would be useful for many problem > resolve sessions. > > I'm thinking that there are real issues here, solving or > identification made problematic by unintentionally fuzzy descriptions. > IF this could be boiled down to a certain kind of signal and > precisely defined settings producing a widely agreed upon result, > there could be a resolution. It is very hard to code solutions to > impressions, particularly it is not at all clear whether NR was on at > the same time, what settings were in use, and whether IF and/or DSP in > use for NB, etc, etc, etc. > > Backing off PRE/ATT/RFgain settings in a noisy situation definitely > helps the "clarity" of DSP functions, but this tactic seems eternally > to fall on deaf ears. > > It is clear in some posts that the term noise reduction is used when > the NB functions of the K3 are being addressed. > > On the other side of this, I've never seen an analog radio nullify key > clicks. I don't think we know everything that is possible with DSP > processing in the digital realm given time? Very careful and precise > descriptions would be helpful. > > 73, Guy. > > On Wed, Jul 14, 2010 at 2:54 PM, Geoffrey Mackenzie-Kennedy > <gm4...@btinternet.com> wrote: >> Thanks for your explanation, I had missed the point of RLVZ's comment. >> >> A related cause and I am speculating here without doing the calculations, >> when the noise is rough and signals are at or under the noise floor might be >> the added in-passband low level intermodulation products generated by a >> narrow bandwidth roofing filter when hit by all of the received noise power, >> which the DSP then has to cope with, given that the OIP3 of a narrow >> bandwidth crystal filter is usually "worse" than that of a wider filter - >> all else being equal. I do have some crystal filter OIP3 vs filter bandwidth >> measured data which shows this effect, but will stop speculating on the >> effect on a DSP :-) >> >> I agree with your comment about DSP radios vs full analogue radios. >> >> 73, >> >> Geoff >> GM4ESD >> >> >> >> Tom W8JI wrote: >> >>> I think people are talking about two different things here. >>> >>> What I am talking about, and what I understand some others to be talking >>> about, is a problem with DSP systems processing noise floor signal, >>> especially when the noise is a bit rough, without adding artifacts that >>> make >>> copy or quality worse. >> >> <snip> >> >>> I have no problem at all with how the K3 blanker and noise reduction >>> works, >>> and actually IMO it does a good job for me. I just don't think any DSP >>> radio >>> is as good as a full analog system when signal levels are near noise >>> levels, >>> especially when the noise floor is a bit rough. >> >> >> >> ______________________________________________________________ >> 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 ______________________________________________________________ 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
