K3 NR triggering
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It's become obvious to me that the most of the full time CW ops on the reflector were very happy with the fast responding, instant changing, very aggressive filters on the Pre 3.25 NR. So long as you didn't choose a filter that was too aggressive for your needs, I never found that I cut out any CW tones. As matter of fact, I found that with the old NR I was able to actually Enhance CW tones. I DO NOT find this to be the case with either 3.25, or 3.27. Without an Audio peak filter on the K3, I much prefer what I had previously. As a late night, high QRM 30meter DXer I find that I enjoyed the ability to switch between filter groups and hear the results instantaneously. Unlike SSB where you can wait that extra second, on CW, every dit and dah counts. Instead of trying to find a single NR DSP that would satisfy both groups, which seems near impossible to do. Wouldn't it be best to implement some way to have the OLD NR on CW mode, and then perhaps something like 3.25 or 3.27 on SSB mode? This way the CW guys, like myself, can enjoy the serious filter ability of the old NR, and the SSB guys can enjoy the "pipeless" artifacts when using NR in SSB mode. Some times you can't satisfy all the people all the time with one road. But you can send them in different directions and try to help them both at the same time. N6MQL _________________________________________________________________ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCB&publ=WLHMTAG&crea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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FWIW, I strongly agree with N6MQL's suggestion.
Bill W5WVO The Smiths (N6MQL) wrote: > Instead of trying to find a single NR DSP that would satisfy both > groups, which seems near impossible to do. Wouldn't it be best to > implement some way to have the OLD NR on CW mode, and then perhaps > something like 3.25 or 3.27 on SSB mode? This way the CW guys, like > myself, can enjoy the serious filter ability of the old NR, and the > SSB guys can enjoy the "pipeless" artifacts when using NR in SSB > mode. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by The Smiths
> Some times you can't satisfy all the people all the time with one
> road. Truer words were never spoken! I'm a full time CW operator (well, 99.9% CW, 0.1% digital modes.) I played with the pre-3.25 NR quite a bit and I was never able to find a setting that made a CW signal easier to copy, so I never actually used it in a QSO. Post-3.25, I find I'm now using it more often than not. My preference would be for progress to continue in the 3.25/3.27 direction. Of course, ideally they'll come up with a way to let each operator use what works best for them. 73 -- Joe KB8AP On Aug 27, 2009, at 11:18 AM, The Smiths wrote: > > > > > It's become obvious to me that the most of the full time CW ops on > the reflector were very happy with the fast responding, instant > changing, very aggressive filters on the Pre 3.25 NR. So long as you > didn't choose a filter that was too aggressive for your needs, I > never found that I cut out any CW tones. > > As matter of fact, I found that with the old NR I was able to > actually Enhance CW tones. I DO NOT find this to be the case with > either 3.25, or 3.27. Without an Audio peak filter on the K3, I > much prefer what I had previously. As a late night, high QRM 30meter > DXer I find that I enjoyed the ability to switch between filter > groups and hear the results instantaneously. Unlike SSB where you > can wait that extra second, on CW, every dit and dah counts. > > Instead of trying to find a single NR DSP that would satisfy both > groups, which seems near impossible to do. Wouldn't it be best to > implement some way to have the OLD NR on CW mode, and then perhaps > something like 3.25 or 3.27 on SSB mode? This way the CW guys, like > myself, can enjoy the serious filter ability of the old NR, and the > SSB guys can enjoy the "pipeless" artifacts when using NR in SSB mode. > > Some times you can't satisfy all the people all the time with one > road. But you can send them in different directions and try to help > them both at the same time. > > > > N6MQL > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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I would like to still see some kind of APF filter to peak up weak cw,
I'm still always looking for more volume or gain against the noise floor. For me its hard to compare something from a couple of months ago to what I have now in firmware but for the impressions or notes taken back with other firmware set ups, with varying band conditions I really can't tell unless you had two radios side by side to compare in real time both on the same antenna at the same time with no a/b switching. Out of 4 cw attempts at my daily cw fix only one had enough level of volume s/n that was a comfortable arm chair copy, another fellow K3 owner at a camp ground in Mo. I would go for the dual firmware one for CW and the other for SSB also, 3.27 does well on SSB with the audio response, so far I like it a lot. Regards Art ka9zap Some times you can't satisfy all the people all the time with one > road. > > Truer words were never spoken! > > I'm a full time CW operator (well, 99.9% CW, 0.1% digital modes.) I > played with the pre-3.25 NR quite a bit and I was never able to find a > setting that made a CW signal easier to copy, so I never actually used > it in a QSO. Post-3.25, I find I'm now using it more often than not. > My preference would be for progress to continue in the 3.25/3.27 > direction. Of course, ideally they'll come up with a way to let each > operator use what works best for them. > > 73 > -- > Joe KB8AP > > > > > On Aug 27, 2009, at 11:18 AM, The Smiths wrote: > > >> >> >> It's become obvious to me that the most of the full time CW ops on >> the reflector were very happy with the fast responding, instant >> changing, very aggressive filters on the Pre 3.25 NR. So long as you >> didn't choose a filter that was too aggressive for your needs, I >> never found that I cut out any CW tones. >> >> As matter of fact, I found that with the old NR I was able to >> actually Enhance CW tones. I DO NOT find this to be the case with >> either 3.25, or 3.27. Without an Audio peak filter on the K3, I >> much prefer what I had previously. As a late night, high QRM 30meter >> DXer I find that I enjoyed the ability to switch between filter >> groups and hear the results instantaneously. Unlike SSB where you >> can wait that extra second, on CW, every dit and dah counts. >> >> Instead of trying to find a single NR DSP that would satisfy both >> groups, which seems near impossible to do. Wouldn't it be best to >> implement some way to have the OLD NR on CW mode, and then perhaps >> something like 3.25 or 3.27 on SSB mode? This way the CW guys, like >> myself, can enjoy the serious filter ability of the old NR, and the >> SSB guys can enjoy the "pipeless" artifacts when using NR in SSB mode. >> >> Some times you can't satisfy all the people all the time with one >> road. But you can send them in different directions and try to help >> them both at the same time. >> >> >> >> N6MQL >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Joe Planisky
Joe and all,
As I understand the changes, in the pre-3.27 NR situation, there were audio peaks in the response envelope - so it worked very well (similar to an APF) for some who used a CW pitch near the peaks, but there were others who used other sidetone pitches and they were not happy with the CW NR at all. The peaking in the response made SSB NR unusable for me, but now it enhances the signal while getting rid of the noise - Yes, I hear a bit of 'hollowness', but that is acceptable to me - at least I can hear and understand SSB signals down near the noise level. The key to finding the right NR settings is to adjust them while listening to a signal - if there is no signal, any of the NR settings can reduce the noise, but it may not be a setting that is suitable for the band conditions, antenna, noise type or signal strength. With 3.27 on 20 meters at my location, I use F1-x through F2-4 on SSB, but the F3-x and F4-x give me some signal attenuation - many CW operators have reported that F3-x and F4-x work well for them on CW. Experiment with it a bit, but do it while listening to the weakest signal that you wish to hear, and you should be able to find what will work best for you under those band and noise conditions. 73, Don W3FPR Joe Planisky wrote: >> Some times you can't satisfy all the people all the time with one >> road. >> > > Truer words were never spoken! > > I'm a full time CW operator (well, 99.9% CW, 0.1% digital modes.) I > played with the pre-3.25 NR quite a bit and I was never able to find a > setting that made a CW signal easier to copy, so I never actually used > it in a QSO. Post-3.25, I find I'm now using it more often than not. > My preference would be for progress to continue in the 3.25/3.27 > direction. Of course, ideally they'll come up with a way to let each > operator use what works best for them. > > 73 > -- > Joe KB8AP > > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Joe Planisky
Joe Planisky wrote:
>> Some times you can't satisfy all the people all the time with one >> road. > > Truer words were never spoken! > > I'm a full time CW operator (well, 99.9% CW, 0.1% digital modes.) I > played with the pre-3.25 NR quite a bit and I was never able to find a > setting that made a CW signal easier to copy, so I never actually used > it in a QSO. Post-3.25, I find I'm now using it more often than not. > My preference would be for progress to continue in the 3.25/3.27 > direction. Of course, ideally they'll come up with a way to let each > operator use what works best for them. > > 73 > -- > Joe KB8AP I also operate mostly CW .... 3.27 isn't bad, but over the year or so I think the best DSP firmware was DSP 1.81 It was one of the better balances of audio level for NR on/off. And the CW signals came up out of the noise - or the noise went down. But ..... it doesn't work right anymore with the newer MCU & FPF levels. That DSP is part of k3fw2r10.zip which I have labeled "FD 08" in the folder with all the old firmware sets. 73 Hank K8DD ____________________________________________________________ FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop! Check it out at http://www.inbox.com/earth ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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