Hmmm...this topic appears from time to time and in the early days I think it was relevant. Since Lyle has has worked on the DSP and introduced F1-x for CW and 5-x up for SSB there has been a huge improvement.
Perhaps the settings used by those experiencing a big drop in audio levels are different to mine BUT I have just checked 7.055 listening to an Indonesian station close to the noise floor. The result is I hear a lot of band noise and a soft and difficult to understand SSB conversation, when I use NR (5-2) the noise drops significantly and the voice is marginally softer but now understandable. and a QSO would be easy to do providing the other station would be able to copy me. I am sure that Lyle will revisit the Algorithm and see if indeed any improvements can be made BUT for now I am quite satisfied with the NR functionality. Having said this, we all experience different band conditions and what works for one person may not work for all of us. My 2 cents worth...keep the change 73's Gary On Tue, Oct 5, 2010 at 8:15 AM, WILLIS COOKE <wrco...@yahoo.com> wrote: > That sure is not what I have observed. My signals drop about 2 S units if > they > are strong. If they are near the noise level they disappear. I am running > F > 1-1. It is worse if I run a higher NR level. > > Willis 'Cookie' Cooke > K5EWJ > > > > > ________________________________ > From: W4GRJ <w4...@satterfield.org> > To: Dale Wiese <dwies...@mac.com>; Elecraft Email < > elecraft@mailman.qth.net> > Sent: Mon, October 4, 2010 4:54:21 PM > Subject: Re: [Elecraft] [Elecraft K3] Volume Level with NR > > Dale, > > Just for reference, my experience with the K3 NR is outstanding. I cannot > notice any reduced volume on the tuned signal. The NR on my K3 does a great > job of whacking out the noise without effecting the signal level. > > You may need to do some checking of settings and calibration, I am sure > there are folks here that can help you. > > Jack > W4GRJ > > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Wiese > Sent: Monday, October 04, 2010 2:31 PM > To: Elecraft Email > Subject: Re: [Elecraft] Volume Level with NR > > Wayne, > > I am going to disagree - I think its a real issue, and an area for K3 > improvement. While I have not been to Jim's shack to hear what he is > hearing, it sounds like what I have always observed, at least for SSB > reception. Engaging the NR significantly reduces the overall audio level. > > When I engage the NR on my MkV or FT-847, the band noise drops away, but > the > perceived volume of the monitored voice stays about the same. It is rare > that I need to touch the volume control. Yaesu NR is reasonably effective > for turning a marginal signal into something that can be copied, and > turning > a strong signal with high band noise into something more pleasant to listen > to. > > On the K3, engaging the NR in SSB drops both the noise and the apparent > voice level substantially, requiring that the volume control be turned up > [a > lot] to copy the voice. But then the noise is also increased. > Frequently it feels like the NR has done little to no good, but it is hard > to tell. Perhaps the ratio between the band noise and the desired signal > is > improved, but overall I would say its not. Or not very much. > > The NR difference on SSB between the K3 and the Yaesu products I have used > is large, and the K3 loses. It is the _only_ K3 feature I find which is > sub-par, and only for SSB - NR for CW seems much more effective. > > 73, > Dale > N9XD > > > On Oct 4, 2010, at 9:13 AM, Wayne Burdick wrote: > > > Jim, > > > > Some drop in apparent volume level is typical with NR. Part of the > > drop is due to the removal of noise. Part of it may be a > > psychoacoustic effect (sorry, I'm not an expert on this). > > > > You might also try setting F5-1. Settings from F5-x to F8-x use a > > different algorithm. > > > > 73, > > Wayne > > N6KR > > > > > > On Oct 4, 2010, at 9:04 AM, Jim Harris wrote: > > > >> > >> Hi, > >> > >> I've noticed recently that when I press NR the volume level drops > >> what could be called a considerable amount. I normally use NR > >> setting of F-1-1 or -2. More than that tends to almost mute the > >> receiver. I find that the volume control needs to be increased > >> about 70 degrees or so to give the same loudness as before the NR > >> was pressed with the above settings. I have to manually change the > >> volume every time I engage or disengage the NR. I realize that most > >> likely there should be some decrease in loudness but this seems to > >> be excessive. > >> > >> Does anyone have any meaningful experience or recommendations they > >> can pass along. > >> > >> Thank you. > >> > >> > >> Take Pride in the USA! > >> > >> 73, Jim, W0EM > >> > >> > >> > >> ______________________________________________________________ > >> 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 > > ______________________________________________________________ > 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 > -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 For everything else there's Mastercard!!! ______________________________________________________________ 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
