DSP Noise Reduction and contesting
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DSP Noise Reduction and contesting
 
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I've read Fred Cady's book and the manual, and I'm still at sea - anyone
have opinions or recommendations about using NR for CW or phone contesting? I assume the settings are probably different. -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. ______________________________________________________________ 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 |
Re: DSP Noise Reduction and contesting
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Hi Pete,
The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - anyone > have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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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This is pretty much my experience too [except the Africa part :-)]. I'm
more or less CW-only and I just can't get NR to make any real improvement in the readability of signals. On the other hand, careful use of the DSP selectivity and passband position works great. The IF Noise Blanker works super on electric fence and ignition noise [although ignition noise seems to be a thing of the past these days], and not-so-bad on power mains noise. Really aggressive settings start to create their own racket, but that's true for any IF blanker ... punch big enough holes in the signal often enough and you start to "hear the holes." The DSP NB is sort of in there with the NR for me and I rarely try it. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 11/6/2012 12:30 PM, Arie Kleingeld PA3A wrote: > Hi Pete, > > The NR of the K3 is not a feature that shines. That's why I never tried > it in contests. But in a few weeks there's the CQWW CW again. Maybe I > will give it a go. > > My two cents worth on the NR of the K3. > When applying NR I woud expect a better S/N ratio of some kind on a > weaker signal (that's why it is called NR). On SSB I never found a > setting that increased the S/N ratio or readability of the signal to MY > ears (settings F5-1 to F8-4) > > CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio > I rely totally on the K3 filtering with APF as last resort. The only > time I really loved the NR, was when I worked on 160m in the 9L5MS > dx-pedition (in tropic thunderstormy Africa) for the whole night. It > kept the fatigue of constant static noise away. > > 73 > Arie PA3A ______________________________________________________________ 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 |
Re: DSP Noise Reduction and contesting
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I don't have much experience with contesting but I'll add that one of my
favorite uses for the noise reduction (NR) feature is to cut down on ear fatigue from atmospheric noise when I have the rig on "in the background" all day. I like to listen to the band with a wide filter setting so I can tune to something interesting when I hear it, but that constant background noise is hard on my ears after a while. NR solves it. I often disable NR when I'm tuned to a signal of interest, because it sounds more natural to me. --Andrew, NV1B maineware.net .. On Tue, Nov 6, 2012 at 3:45 PM, Fred Jensen <[hidden email]> wrote: > This is pretty much my experience too [except the Africa part :-)]. I'm > more or less CW-only and I just can't get NR to make any real > improvement in the readability of signals. ... > On 11/6/2012 12:30 PM, Arie Kleingeld PA3A wrote: > > Hi Pete, > > > > The NR of the K3 is not a feature that shines. That's why I never tried > > it in contests. But in a few weeks there's the CQWW CW again. Maybe I > > will give it a go. > ______________________________________________________________ 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 Arie Kleingeld PA3A-2
Hi Arie,
I totally concur with your comments below. Since my first K3 (#311) I have whined about the NR, especially for SSB. NR now works pretty well on CW, but I rarely use it on SSB. My NR standard is still Icom. It is simple to use - one knob. And at low levels it takes out the background noise to make listening for long times more comfortable without affecting the quality of the signal as much as the K3. When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using higher numbers as the intelligibility, especially on SSB degrades rapidly. And yes, if I am going to use NR I use it on the low bands, especially in the summer along with the NB. Overall I like the K3 much more than the Icom. But I do like the NR on Icom. 73, N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A Sent: Tuesday, November 06, 2012 3:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Pete, The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - > anyone have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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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Tony
I have had the Icoms also and will tell you after owning the FTDX-5000MP for 2 years that it is the very best out there. IMHO the 5000's DNR should be an industry standard that they all should work toward and the way its implemented with the knob. Putting on my flame suit... 73, Fred/N0AZZ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of N2TK, Tony Sent: Wednesday, November 07, 2012 6:29 AM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Arie, I totally concur with your comments below. Since my first K3 (#311) I have whined about the NR, especially for SSB. NR now works pretty well on CW, but I rarely use it on SSB. My NR standard is still Icom. It is simple to use - one knob. And at low levels it takes out the background noise to make listening for long times more comfortable without affecting the quality of the signal as much as the K3. When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using higher numbers as the intelligibility, especially on SSB degrades rapidly. And yes, if I am going to use NR I use it on the low bands, especially in the summer along with the NB. Overall I like the K3 much more than the Icom. But I do like the NR on Icom. 73, N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A Sent: Tuesday, November 06, 2012 3:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Pete, The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - > anyone have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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 ______________________________________________________________ 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 |
DSP Noise Reduction and contesting
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In reply to this post by N2TK
Hello Tony,
I concur with your observation. In SSB, the NR in Icom is far better. Among all the 8 x 4 = 32 choices in NR settings in K3, I am afraid that none of them is as good as that of NR of Icom in SSB. The success of the implementation of IF DSP will depend on: 1. the processing power of the DSP chip set; 2. the ability to write an efficent firmware to optimise the performance of the DSP chip set. Surprisingly, while I was told that the NR in KX3 was the same as that in K3, I feel the NR in KX3 sounds better and less artifact. I trust elecraft keeps on looking for ways to improve the NR performance. TNX & 73, Johnny VR2XMC ________________________________ 寄件人︰ "N2TK, Tony" <[hidden email]> 收件人︰ [hidden email] 傳送日期︰ 2012年11月7日 (週三) 7:28 PM 主題︰ Re: [Elecraft] DSP Noise Reduction and contesting Hi Arie, I totally concur with your comments below. Since my first K3 (#311) I have whined about the NR, especially for SSB. NR now works pretty well on CW, but I rarely use it on SSB. My NR standard is still Icom. It is simple to use - one knob. And at low levels it takes out the background noise to make listening for long times more comfortable without affecting the quality of the signal as much as the K3. When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using higher numbers as the intelligibility, especially on SSB degrades rapidly. And yes, if I am going to use NR I use it on the low bands, especially in the summer along with the NB. Overall I like the K3 much more than the Icom. But I do like the NR on Icom. 73, N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A Sent: Tuesday, November 06, 2012 3:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Pete, The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - > anyone have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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 ______________________________________________________________ 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 |
DSP Noise Reduction and contesting
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In reply to this post by N0AZZ
Hello Fred,
I think Yaesu have learnt some lessons from their FTDX9000 and implement a better mechanism of NR in their FTDX5000. I once used a FTDX9000 (before PEP), the NR was even worse than K3. However, I heard that after the PEP, the FTDX9000 improved a lot. I have no idea of how good of the PEP because I simply sold my FTDX9000 right the way after the disappointment. TNX & 73, Johnny VR2XMC ________________________________ 寄件人︰ Fred Smith <[hidden email]> 收件人︰ "'N2TK, Tony'" <[hidden email]>; [hidden email] 傳送日期︰ 2012年11月7日 (週三) 8:24 PM 主題︰ Re: [Elecraft] DSP Noise Reduction and contesting Tony I have had the Icoms also and will tell you after owning the FTDX-5000MP for 2 years that it is the very best out there. IMHO the 5000's DNR should be an industry standard that they all should work toward and the way its implemented with the knob. Putting on my flame suit... 73, Fred/N0AZZ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of N2TK, Tony Sent: Wednesday, November 07, 2012 6:29 AM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Arie, I totally concur with your comments below. Since my first K3 (#311) I have whined about the NR, especially for SSB. NR now works pretty well on CW, but I rarely use it on SSB. My NR standard is still Icom. It is simple to use - one knob. And at low levels it takes out the background noise to make listening for long times more comfortable without affecting the quality of the signal as much as the K3. When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using higher numbers as the intelligibility, especially on SSB degrades rapidly. And yes, if I am going to use NR I use it on the low bands, especially in the summer along with the NB. Overall I like the K3 much more than the Icom. But I do like the NR on Icom. 73, N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A Sent: Tuesday, November 06, 2012 3:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Pete, The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - > anyone have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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 ______________________________________________________________ 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 Johnny Siu
The NB on the K3 was awesome this morning with S9 buzz on 80M this AM
Sent from my iPad Chuck, KE9UW (Jack for BMW motorcycles) On Nov 7, 2012, at 9:57 AM, "Johnny Siu" <[hidden email]> wrote: > Hello Tony, > > I concur with your observation. In SSB, the NR in Icom is far better. Among all the 8 x 4 = 32 choices in NR settings in K3, I am afraid that none of them is as good as that of NR of Icom in SSB. > > The success of the implementation of IF DSP will depend on: > > 1. the processing power of the DSP chip set; > 2. the ability to write an efficent firmware to optimise the performance of the DSP chip set. > > Surprisingly, while I was told that the NR in KX3 was the same as that in K3, I feel the NR in KX3 sounds better and less artifact. > > I trust elecraft keeps on looking for ways to improve the NR performance. > > > TNX & 73, > > > Johnny VR2XMC > > > ________________________________ > 寄件人︰ "N2TK, Tony" <[hidden email]> > 收件人︰ [hidden email] > 傳送日期︰ 2012年11月7日 (週三) 7:28 PM > 主題︰ Re: [Elecraft] DSP Noise Reduction and contesting > > Hi Arie, > I totally concur with your comments below. > Since my first K3 (#311) I have whined about the NR, especially for SSB. NR > now works pretty well on CW, but I rarely use it on SSB. > My NR standard is still Icom. It is simple to use - one knob. And at low > levels it takes out the background noise to make listening for long times > more comfortable without affecting the quality of the signal as much as the > K3. > When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using > higher numbers as the intelligibility, especially on SSB degrades rapidly. > And yes, if I am going to use NR I use it on the low bands, especially in > the summer along with the NB. > > Overall I like the K3 much more than the Icom. But I do like the NR on Icom. > > > 73, > N2TK, Tony > > > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A > Sent: Tuesday, November 06, 2012 3:30 PM > To: [hidden email] > Subject: Re: [Elecraft] DSP Noise Reduction and contesting > > Hi Pete, > > The NR of the K3 is not a feature that shines. That's why I never tried it > in contests. But in a few weeks there's the CQWW CW again. Maybe I will give > it a go. > > My two cents worth on the NR of the K3. > When applying NR I woud expect a better S/N ratio of some kind on a weaker > signal (that's why it is called NR). On SSB I never found a setting that > increased the S/N ratio or readability of the signal to MY ears (settings > F5-1 to F8-4) > > CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I > rely totally on the K3 filtering with APF as last resort. The only time I > really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in > tropic thunderstormy Africa) for the whole night. It kept the fatigue of > constant static noise away. > > 73 > Arie PA3A > > > > Op 5-11-2012 23:37, Pete Smith N4ZR schreef: >> I've read Fred Cady's book and the manual, and I'm still at sea - >> anyone have opinions or recommendations about using NR for CW or phone >> contesting? I assume the settings are probably different. >> > > > ______________________________________________________________ > 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 > ______________________________________________________________ > 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
Chuck, KE9UW
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In reply to this post by N0AZZ
Tnx Fred for the info. I have not had the opportunity yet to play with a
FT5K. But I want to. We keep looking for the perfect rig. I like my pair of K3's over Icom except for the NR. Maybe someday we will have an upgrade on the NR? 73, N2TK, Tony -----Original Message----- From: Fred Smith [mailto:[hidden email]] Sent: Wednesday, November 07, 2012 8:25 AM To: 'N2TK, Tony'; [hidden email] Subject: RE: [Elecraft] DSP Noise Reduction and contesting Tony I have had the Icoms also and will tell you after owning the FTDX-5000MP for 2 years that it is the very best out there. IMHO the 5000's DNR should be an industry standard that they all should work toward and the way its implemented with the knob. Putting on my flame suit... 73, Fred/N0AZZ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of N2TK, Tony Sent: Wednesday, November 07, 2012 6:29 AM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Arie, I totally concur with your comments below. Since my first K3 (#311) I have whined about the NR, especially for SSB. NR now works pretty well on CW, but I rarely use it on SSB. My NR standard is still Icom. It is simple to use - one knob. And at low levels it takes out the background noise to make listening for long times more comfortable without affecting the quality of the signal as much as the K3. When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using higher numbers as the intelligibility, especially on SSB degrades rapidly. And yes, if I am going to use NR I use it on the low bands, especially in the summer along with the NB. Overall I like the K3 much more than the Icom. But I do like the NR on Icom. 73, N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Arie Kleingeld PA3A Sent: Tuesday, November 06, 2012 3:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Hi Pete, The NR of the K3 is not a feature that shines. That's why I never tried it in contests. But in a few weeks there's the CQWW CW again. Maybe I will give it a go. My two cents worth on the NR of the K3. When applying NR I woud expect a better S/N ratio of some kind on a weaker signal (that's why it is called NR). On SSB I never found a setting that increased the S/N ratio or readability of the signal to MY ears (settings F5-1 to F8-4) CW works better (F1-1 to F4-4) but I seldom use it. For good S/N ratio I rely totally on the K3 filtering with APF as last resort. The only time I really loved the NR, was when I worked on 160m in the 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole night. It kept the fatigue of constant static noise away. 73 Arie PA3A Op 5-11-2012 23:37, Pete Smith N4ZR schreef: > I've read Fred Cady's book and the manual, and I'm still at sea - > anyone have opinions or recommendations about using NR for CW or phone > contesting? I assume the settings are probably different. > ______________________________________________________________ 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 ______________________________________________________________ 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 ke9uw
Hi Chuck,
Yep, I agree with you with the NB. At KP2M I could not use our EU beverage on topband without the NB. It does a good job. I also use it at home on the high bands when I have a local noise generator act up. It never seems to run long enough for me to find it other than the general direction. I think it sees me when I leave the house with my directional noise finder and stops generating noise. 73, N2TK, Tony -----Original Message----- From: hawley, charles j jr [mailto:[hidden email]] Sent: Wednesday, November 07, 2012 11:33 AM To: Johnny Siu Cc: N2TK, Tony; [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting The NB on the K3 was awesome this morning with S9 buzz on 80M this AM Sent from my iPad Chuck, KE9UW (Jack for BMW motorcycles) On Nov 7, 2012, at 9:57 AM, "Johnny Siu" <[hidden email]> wrote: > Hello Tony, > > I concur with your observation. In SSB, the NR in Icom is far better. Among all the 8 x 4 = 32 choices in NR settings in K3, I am afraid that none of them is as good as that of NR of Icom in SSB. > > The success of the implementation of IF DSP will depend on: > > 1. the processing power of the DSP chip set; 2. the ability to write > an efficent firmware to optimise the performance of the DSP chip set. > > Surprisingly, while I was told that the NR in KX3 was the same as that in K3, I feel the NR in KX3 sounds better and less artifact. > > I trust elecraft keeps on looking for ways to improve the NR performance. > > > TNX & 73, > > > Johnny VR2XMC > > > ________________________________ > 寄件人�U "N2TK, Tony" <[hidden email]> > 收件人�U [hidden email] > �魉腿掌讴U 2012年11月7日 (�L三) 7:28 PM > 主�}�U Re: [Elecraft] DSP Noise Reduction and contesting > > Hi Arie, > I totally concur with your comments below. > Since my first K3 (#311) I have whined about the NR, especially for > SSB. NR now works pretty well on CW, but I rarely use it on SSB. > My NR standard is still Icom. It is simple to use - one knob. And at > low levels it takes out the background noise to make listening for > long times more comfortable without affecting the quality of the > signal as much as the K3. > When I use NR on CW I use F1-1 and on SSB F5-1. I can't imagine using > higher numbers as the intelligibility, especially on SSB degrades rapidly. > And yes, if I am going to use NR I use it on the low bands, especially > in the summer along with the NB. > > Overall I like the K3 much more than the Icom. But I do like the NR on > > > 73, > N2TK, Tony > > > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Arie Kleingeld > PA3A > Sent: Tuesday, November 06, 2012 3:30 PM > To: [hidden email] > Subject: Re: [Elecraft] DSP Noise Reduction and contesting > > Hi Pete, > > The NR of the K3 is not a feature that shines. That's why I never > tried it in contests. But in a few weeks there's the CQWW CW again. > Maybe I will give it a go. > > My two cents worth on the NR of the K3. > When applying NR I woud expect a better S/N ratio of some kind on a > weaker signal (that's why it is called NR). On SSB I never found a > setting that increased the S/N ratio or readability of the signal to > MY ears (settings > F5-1 to F8-4) > > CW works better (F1-1 to F4-4) but I seldom use it. For good S/N > ratio I rely totally on the K3 filtering with APF as last resort. The > only time I really loved the NR, was when I worked on 160m in the > 9L5MS dx-pedition (in tropic thunderstormy Africa) for the whole > night. It kept the fatigue of constant static noise away. > > 73 > Arie PA3A > > > > Op 5-11-2012 23:37, Pete Smith N4ZR schreef: >> I've read Fred Cady's book and the manual, and I'm still at sea - >> anyone have opinions or recommendations about using NR for CW or >> phone contesting? I assume the settings are probably different. >> > > > ______________________________________________________________ > 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 > ______________________________________________________________ > 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 N2TK
Very good point Tony. I'm 95% CW, and the 5% SSB is nearly always
chasing someone who is activating a SOTA summit and is weak at the noise. I'd say "I don't use the NR," but the truth is, I usually can't make it work. It's hit or miss with few hits that actually work [not unlike my marksmanship with my service .45 on the qualification range]. The ADJ gives me 32 discrete combinations of 3 "somethings." I know the F1-F4 are 100% NR and F5-F8 mix in some unprocessed audio although I don't know what that does, and I don't know what the F's themselves or the 4 "levels" within each F do. It's similar to my wife asking me, "It wants to compact the folders, what should I do?" I learned -- the hard way -- that "What should I do?" does *not* mean, "Explain why folders need to be compacted every now and then, how it is done, and how to decide." The answer to her question is, "Yes. dear." One knob, increasingly aggressive processing when turned in a clockwise direction, would be great. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 11/7/2012 4:28 AM, N2TK, Tony wrote: > My NR standard is still Icom. It is simple to use - one knob. ______________________________________________________________ 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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Fred
That knob describes the FTDX-5000 lol. Fred/N0AZZ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Fred Jensen Sent: Wednesday, November 07, 2012 1:30 PM To: [hidden email] Subject: Re: [Elecraft] DSP Noise Reduction and contesting Very good point Tony. I'm 95% CW, and the 5% SSB is nearly always chasing someone who is activating a SOTA summit and is weak at the noise. I'd say "I don't use the NR," but the truth is, I usually can't make it work. It's hit or miss with few hits that actually work [not unlike my marksmanship with my service .45 on the qualification range]. The ADJ gives me 32 discrete combinations of 3 "somethings." I know the F1-F4 are 100% NR and F5-F8 mix in some unprocessed audio although I don't know what that does, and I don't know what the F's themselves or the 4 "levels" within each F do. It's similar to my wife asking me, "It wants to compact the folders, what should I do?" I learned -- the hard way -- that "What should I do?" does *not* mean, "Explain why folders need to be compacted every now and then, how it is done, and how to decide." The answer to her question is, "Yes. dear." One knob, increasingly aggressive processing when turned in a clockwise direction, would be great. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 11/7/2012 4:28 AM, N2TK, Tony wrote: > My NR standard is still Icom. It is simple to use - one knob. ______________________________________________________________ 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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