Not throttled back here. Jim, W4ATK
On Oct 4, 2010, at 6:20 PM, David Herring wrote: > General question to those participating in this thread, when you > engage NR, are you running RF gain maxed out, or are you adjusting > RF gain back to the point where it just affects the S-meter? > > Sadly I'm off the air for a few days so I can't test myself, but I'm > interested to know if throttling the RF gain has any bearing on the > drop in volume. > > 73, > > Dave, AH6TD > > Sent from my iPhone > > On Oct 4, 2010, at 12:47 PM, Gary Gregory <[email protected]> wrote: > >> 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 <[email protected]> >> 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 <[email protected]> >>> To: Dale Wiese <[email protected]>; Elecraft Email < >>> [email protected]> >>> 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: [email protected] >>> [mailto:[email protected]] 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:[email protected] >>>>> >>>>> 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:[email protected] >>>> >>>> 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:[email protected] >>> >>> 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:[email protected] >>> >>> 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:[email protected] >>> >>> 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:[email protected] >> >> 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:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
