New DSP Idea
Locked
 
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I know Wayne requested direct replies to his query and I've already done that, but I have a serious suggestion and I'm curious if others here would be interested. Here it is: === The two receivers in a K3 or K3s can be phase locked for diversity reception, and the new synths preserve that phase lock even with a change in frequency. Since the relative phase of an incoming signal presented to the two receivers is preserved during down conversion, it is possible to capture that phase difference even in the audio chain. Once that phase difference is known, it should be possible to: 1. Display the difference. This would allow a user to put up two vertical sense antennas to determine the azimuth of an incoming signal (albeit with a potential mirror image uncertainty). Or put up two horizontal sense antennas to display the arrival angle of an incoming signal. 2. Better yet, it should be possible to adjust the relative phase and amplitude of an incoming signal from the two antennas, then either add them or subtract one from the other to either peak a desired signal or null an interfering signal (including a source of noise, man made or atmospheric). === There are commercially available pieces of hardware from various ham suppliers that perform this same function except at RF (which is more difficult), and they cost several hundreds of dollars. It seems to me that any K3s, or K3 with the new synths, should be able to do the same thing virtually for free. 73, Dave AB7E ______________________________________________________________ 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 Message delivered to [hidden email] |
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Dave,
Using Diversity Receive, the human brain does that automatically (but not with the numbers). You can sort out both signals and automatically pick the best one or a blend of the two. This is an unconscious process. The name of the game is communications, not looking at numbers representing the two signals or the difference between them. To analyze and display the differences may be useful in a lab setting, but not of much use for quickly picking the best path for a QSO. Just my opinion. 73, Don W3FPR On 1/12/2019 5:06 PM, David Gilbert wrote: > > I know Wayne requested direct replies to his query and I've already done > that, but I have a serious suggestion and I'm curious if others here > would be interested. Here it is: > > === > The two receivers in a K3 or K3s can be phase locked for diversity > reception, and the new synths preserve that phase lock even with a > change in frequency. Since the relative phase of an incoming signal > presented to the two receivers is preserved during down conversion, it > is possible to capture that phase difference even in the audio chain. > Once that phase difference is known, it should be possible to: > > 1. Display the difference. This would allow a user to put up two > vertical sense antennas to determine the azimuth of an incoming signal > (albeit with a potential mirror image uncertainty). Or put up two > horizontal sense antennas to display the arrival angle of an incoming > signal. > > 2. Better yet, it should be possible to adjust the relative phase and > amplitude of an incoming signal from the two antennas, then either add > them or subtract one from the other to either peak a desired signal or > null an interfering signal (including a source of noise, man made or > atmospheric). > === > > There are commercially available pieces of hardware from various ham > suppliers that perform this same function except at RF (which is more > difficult), and they cost several hundreds of dollars. It seems to me > that any K3s, or K3 with the new synths, should be able to do the same > thing virtually for free. > > 73, > Dave AB7E > > ______________________________________________________________ > 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 > Message delivered to [hidden email] 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 Message delivered to [hidden email] |
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In reply to this post by David Gilbert
I’m not an engineer but from the discussions here in the past, in diversity mode, the VFOs are not “phase locked” but actually driven by the same synthesizer, so they both get the very same frequency info. Thus output the same frequency.
Sent from my iPhone ...nr4c. bill > On Jan 12, 2019, at 5:06 PM, David Gilbert <[hidden email]> wrote: > > > I know Wayne requested direct replies to his query and I've already done that, but I have a serious suggestion and I'm curious if others here would be interested. Here it is: > > === > The two receivers in a K3 or K3s can be phase locked for diversity reception, and the new synths preserve that phase lock even with a change in frequency. Since the relative phase of an incoming signal presented to the two receivers is preserved during down conversion, it is possible to capture that phase difference even in the audio chain. Once that phase difference is known, it should be possible to: > > 1. Display the difference. This would allow a user to put up two vertical sense antennas to determine the azimuth of an incoming signal (albeit with a potential mirror image uncertainty). Or put up two horizontal sense antennas to display the arrival angle of an incoming signal. > > 2. Better yet, it should be possible to adjust the relative phase and amplitude of an incoming signal from the two antennas, then either add them or subtract one from the other to either peak a desired signal or null an interfering signal (including a source of noise, man made or atmospheric). > === > > There are commercially available pieces of hardware from various ham suppliers that perform this same function except at RF (which is more difficult), and they cost several hundreds of dollars. It seems to me that any K3s, or K3 with the new synths, should be able to do the same thing virtually for free. > > 73, > Dave AB7E > > ______________________________________________________________ > 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 > Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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Bill,
When they are driven from the same synthesizer, they are indeed "phase locked". 73, Don W3FPR On 1/12/2019 5:59 PM, Nr4c wrote: > I’m not an engineer but from the discussions here in the past, in diversity mode, the VFOs are not “phase locked” but actually driven by the same synthesizer, so they both get the very same frequency info. Thus output the same frequency. > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Don Wilhelm
Don, No, it isn't the same at all and I don't understand why you think it is. Your brain may be able to discern differences in phase and try to focus in on one signal versus others, but it isn't going to do any of these things: 1. Actually amplify a desired signal (probably 2 to 3 db) at the expense of other signals or generalized noise from other directions. Hams who put up phased verticals don't do it strictly for the transmit gain. 2. Totally null out an offending signal or noise from a particular direction. Your brain most certainly can't do this. 3. Give you angle measurements in degrees. As I said, I consider the add/subtract ability (#1 and #2) to be more useful than the simple display of the phase difference (#3), but we could have both. Check this out .... https://tinyurl.com/ydfvcauz It's a hardware implementation of pretty much the same as I'm proposing Elecraft do in software, and the hardware version goes for $750. Dave AB7E On 1/12/2019 3:19 PM, Don Wilhelm wrote: > Dave, > > Using Diversity Receive, the human brain does that automatically (but > not with the numbers). You can sort out both signals and > automatically pick the best one or a blend of the two. This is an > unconscious process. > > The name of the game is communications, not looking at numbers > representing the two signals or the difference between them. > > To analyze and display the differences may be useful in a lab setting, > but not of much use for quickly picking the best path for a QSO. > > Just my opinion. > > 73, > Don W3FPR > > On 1/12/2019 5:06 PM, David Gilbert wrote: >> >> I know Wayne requested direct replies to his query and I've already >> done that, but I have a serious suggestion and I'm curious if others >> here would be interested. Here it is: >> >> === >> The two receivers in a K3 or K3s can be phase locked for diversity >> reception, and the new synths preserve that phase lock even with a >> change in frequency. Since the relative phase of an incoming signal >> presented to the two receivers is preserved during down conversion, >> it is possible to capture that phase difference even in the audio >> chain. Once that phase difference is known, it should be possible to: >> >> 1. Display the difference. This would allow a user to put up two >> vertical sense antennas to determine the azimuth of an incoming >> signal (albeit with a potential mirror image uncertainty). Or put up >> two horizontal sense antennas to display the arrival angle of an >> incoming signal. >> >> 2. Better yet, it should be possible to adjust the relative phase >> and amplitude of an incoming signal from the two antennas, then >> either add them or subtract one from the other to either peak a >> desired signal or null an interfering signal (including a source of >> noise, man made or atmospheric). >> === >> >> There are commercially available pieces of hardware from various ham >> suppliers that perform this same function except at RF (which is more >> difficult), and they cost several hundreds of dollars. It seems to >> me that any K3s, or K3 with the new synths, should be able to do the >> same thing virtually for free. >> >> 73, >> Dave AB7E >> >> ______________________________________________________________ >> 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 >> Message delivered to [hidden email] > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by David Gilbert
I am not an engineer but i agree with David. It is like DSA (digital
subtraction angiography) tecnology. ( https://en.wikipedia.org/wiki/Digital_subtraction_angiography) I know that this technology is much useful for studing on medical images, So i understand that David has adviced such a same technique on the sounds like this. Why not? TA3ON, Salih Tolga Kutlu, Turkiye ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by David Gilbert
On 1/12/2019 2:06 PM, David Gilbert wrote:
> This would allow a user to put up two vertical sense antennas to > determine the azimuth of an incoming signal (albeit with a potential > mirror image uncertainty). Or put up two horizontal sense antennas to > display the arrival angle of an incoming signal. Unfortunately, the real world is far more complicated that this. What you describe can work for local sources, but propagated sources can take different paths, each introducing delays that can, for example, cause cancellation of multiple arrrivals at on antenna while reinforcing at the other. THIS is what causes selective fading, and is why diversity works! In other words, it's FAR more than one vertical antenna and one horizontal one. 73, Jim K9YC ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by David Gilbert
Assuming that there is enough processing power available, and the
architecture physically allows the mixing, manually steering either the peak or the null should be achievable. There is a slight subtlety in that one is trying to achieve a constant time delay at RF, not a constant phase change, but, if RF is sufficiently higher than the the baseband, it will be a good approximation, and the hardware devices being quoted probably have the same defect. Automatically getting a direction is only accurately achievable if the interfering noise is isotropic, at least in the plane containing the line between the antennas. As such, it will not be able to automatically get a direction for an interfering signal, unless it can separate that signal from everything else, and if it can do that, there may be more direct ways of removing the signal. The only way I can see of performing the computation is in the frequency domain. Although everything starts as just a time delay, the down conversion preserves phase not time, so I think one needs to do a Fourier transform, rotate each value by a fixed amount (or one accounting for the offset from the carrier not being negligible) and then invert the transform. (There may be better algorithms.) Because of the discrete nature of FFTs, you would probably want to run several overlapping transforms and average their results. I suspect the current DSP tries to avoid doing a full Fourier transform, and even panoramic adapter FFTs don't need to run overlapping transforms. I think the big question is does the machine have enough processing power to do this. -- David Woolley Owner K2 06123 On 13/01/2019 01:06, David Gilbert wrote: > these things: > > 1. Actually amplify a desired signal (probably 2 to 3 db) at the > expense of other signals or generalized noise from other directions. > Hams who put up phased verticals don't do it strictly for the transmit > gain. > > 2. Totally null out an offending signal or noise from a particular > direction. Your brain most certainly can't do this. > > 3. Give you angle measurements in degrees. > > As I said, I consider the add/subtract ability (#1 and #2) to be more > useful than the simple display of the phase difference (#3), but we > could have both. > > Check this out .... https://tinyurl.com/ydfvcauz > > It's a hardware implementation of pretty much the same as I'm proposing > Elecraft do in software, and the hardware version goes for $750. ______________________________________________________________ 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 Message delivered to [hidden email] |
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Yes, I agree that the computation needs to be done in the frequency domain with an FFT. I have no clue whether or not the K3 and K3s have enough computational power to do so, but Lyle (Elecraft's DSP guru) briefly discussed this idea with me when I suggested it several years ago and he seemed to think it might be feasible. At the time the K3 synths wouldn't preserve lock when you changed frequency so it wouldn't have been very practical back then, but the new synths are fed by the same oscillator now. Regarding the direction finding part of my proposal, I once fed a 40m broadcast band carrier into both receivers of my K3 in diversity mode. I used my 2 element 40m yagi for one receiver, and the tribander below it for the second receiver. I then fed the line output of the K3 into the sound card of my computer running an dual trace oscilloscope application. I didn't know the actual delay of either feedline so I just set the app to trigger on one of the signals and then observed how my trace delay there was on the other signal. I knew the audio frequency of the signals, the frequency of the RF, and the distance between the two antennas. While I wasn't able to calculate the actual arrival angle without knowing the actual phase delay of each feedline, I was able to calculate/observe roughly how much it changed over time. I had to wait for pauses between the voice modulation of the AM signal, of course, but after watching for several minutes I could see that the short term jitter was roughly 5 to 10 degrees and the longer term changes maybe about 15 to 20 degrees. The results were enough to convince me that a better setup could give interesting information, and I suspect that the azimuth angle would be more stable than the arrival angle. 73, Dave AB7E On 1/13/2019 8:45 AM, David Woolley wrote: > Assuming that there is enough processing power available, and the > architecture physically allows the mixing, manually steering either > the peak or the null should be achievable. There is a slight subtlety > in that one is trying to achieve a constant time delay at RF, not a > constant phase change, but, if RF is sufficiently higher than the the > baseband, it will be a good approximation, and the hardware devices > being quoted probably have the same defect. > > Automatically getting a direction is only accurately achievable if the > interfering noise is isotropic, at least in the plane containing the > line between the antennas. As such, it will not be able to > automatically get a direction for an interfering signal, unless it can > separate that signal from everything else, and if it can do that, > there may be more direct ways of removing the signal. > > The only way I can see of performing the computation is in the > frequency domain. Although everything starts as just a time delay, > the down conversion preserves phase not time, so I think one needs to > do a Fourier transform, rotate each value by a fixed amount (or one > accounting for the offset from the carrier not being negligible) and > then invert the transform. (There may be better algorithms.) > > Because of the discrete nature of FFTs, you would probably want to run > several overlapping transforms and average their results. > > I suspect the current DSP tries to avoid doing a full Fourier > transform, and even panoramic adapter FFTs don't need to run > overlapping transforms. > > I think the big question is does the machine have enough processing > power to do this. ______________________________________________________________ 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 Message delivered to [hidden email] |
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Given the way processors improve in speed with time (Moore's
law), the idea of a new DSP could mean just that. The big issues I see are RFI, power consumption, and heat. If we go in the direction of adding AI to the mix, then we will need more storage as well as more processor. (Your phone relies on the cloud for speech recognition.) I'm beginning to see an external box which should address some of the issues above. 73 Bill AE6JV On 1/13/19 at 9:57 AM, [hidden email] (David Gilbert) wrote: >I have no clue whether or not the K3 and K3s have enough >computational power to do so, but Lyle (Elecraft's DSP guru) >briefly discussed this idea with me when I suggested it several >years ago and he seemed to think it might be feasible. ----------------------------------------------------------------------- Bill Frantz | Concurrency is hard. 12 out | Periwinkle (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave www.pwpconsult.com | - Jeff Frantz | Los Gatos, CA 95032 ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by David Gilbert
David Gilbert wrote
> Yes, I agree that the computation needs to be done in the frequency > domain with an FFT. I have no clue whether or not the K3 and K3s have > enough computational power to do so, but Lyle (Elecraft's DSP guru) > briefly discussed this idea with me when I suggested it several years > ago and he seemed to think it might be feasible. At the time the K3 > synths wouldn't preserve lock when you changed frequency so it wouldn't > have been very practical back then, but the new synths are fed by the > same oscillator now. You asked a good question Dave. I recall Lyle telling me the same years ago (where is Lyle anyway...buried in K4 firmware?). I've used the NCC-1, MFJ-1025 and ANC-4 over the years to phase parallel staggered Beverages. This is probably beyond the processor in the K3 but it remains a good idea to investigate for the K4. The downside to phasing two identical antennas internally is that you must give up diversity. Using the NCC-1 output for one input to the K3 diversity and a different antenna for the other allows both simultaneously (but for two different purposes). I'm afraid the market for users who want to do this sort of thing may be small, but clearly there is a decent market for noise canceling devices. BTW noise canceling boxes ONLY work well for canceling a single local noise source which requires a nearby sense antenna for one input (groundwave only since propagation introduces constantly shifting relative phase changes). 73, Bill W4ZV P.S. The bottom 2 plots in the link below show what can be done by phasing two parallel staggered Beverages: http://users.vnet.net/btippett/new_page_10.htm -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ 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 Message delivered to [hidden email] |
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Lyle is retired here in Tucson.
Wes N7WS On 1/14/2019 3:00 AM, Bill W4ZV wrote: > David Gilbert wrote >> Yes, I agree that the computation needs to be done in the frequency >> domain with an FFT. I have no clue whether or not the K3 and K3s have >> enough computational power to do so, but Lyle (Elecraft's DSP guru) >> briefly discussed this idea with me when I suggested it several years >> ago and he seemed to think it might be feasible. At the time the K3 >> synths wouldn't preserve lock when you changed frequency so it wouldn't >> have been very practical back then, but the new synths are fed by the >> same oscillator now. > You asked a good question Dave. I recall Lyle telling me the same years ago > (where is Lyle anyway...buried in K4 firmware?). I've used the NCC-1, > MFJ-1025 and ANC-4 over the years to phase parallel staggered Beverages. > This is probably beyond the processor in the K3 but it remains a good idea > to investigate for the K4. The downside to phasing two identical antennas > internally is that you must give up diversity. Using the NCC-1 output for > one input to the K3 diversity and a different antenna for the other allows > both simultaneously (but for two different purposes). > > I'm afraid the market for users who want to do this sort of thing may be > small, but clearly there is a decent market for noise canceling devices. > BTW noise canceling boxes ONLY work well for canceling a single local noise > source which requires a nearby sense antenna for one input (groundwave only > since propagation introduces constantly shifting relative phase changes). > > 73, Bill W4ZV > > P.S. The bottom 2 plots in the link below show what can be done by phasing > two parallel staggered Beverages: > http://users.vnet.net/btippett/new_page_10.htm ______________________________________________________________ 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 Message delivered to [hidden email] |
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Given the increased noise levels most hams face, I emailed Wayne to ask if improved noise reduction & noise blanking were on their project list. He said no. So, any improvements are apparently a long way off.
John WA1EAZ > On Jan 14, 2019, at 7:29 AM, Wes Stewart <[hidden email]> wrote: > > Lyle is retired here in Tucson. > > Wes N7WS > > On 1/14/2019 3:00 AM, Bill W4ZV wrote: >> David Gilbert wrote >>> Yes, I agree that the computation needs to be done in the frequency >>> domain with an FFT. I have no clue whether or not the K3 and K3s have >>> enough computational power to do so, but Lyle (Elecraft's DSP guru) >>> briefly discussed this idea with me when I suggested it several years >>> ago and he seemed to think it might be feasible. At the time the K3 >>> synths wouldn't preserve lock when you changed frequency so it wouldn't >>> have been very practical back then, but the new synths are fed by the >>> same oscillator now. >> You asked a good question Dave. I recall Lyle telling me the same years ago >> (where is Lyle anyway...buried in K4 firmware?). I've used the NCC-1, >> MFJ-1025 and ANC-4 over the years to phase parallel staggered Beverages. >> This is probably beyond the processor in the K3 but it remains a good idea >> to investigate for the K4. The downside to phasing two identical antennas >> internally is that you must give up diversity. Using the NCC-1 output for >> one input to the K3 diversity and a different antenna for the other allows >> both simultaneously (but for two different purposes). >> >> I'm afraid the market for users who want to do this sort of thing may be >> small, but clearly there is a decent market for noise canceling devices. >> BTW noise canceling boxes ONLY work well for canceling a single local noise >> source which requires a nearby sense antenna for one input (groundwave only >> since propagation introduces constantly shifting relative phase changes). >> >> 73, Bill W4ZV >> >> P.S. The bottom 2 plots in the link below show what can be done by phasing >> two parallel staggered Beverages: >> http://users.vnet.net/btippett/new_page_10.htm > > ______________________________________________________________ > 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 > Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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The NR change I would like is "just" a UI change. If I could
temporarily set up two knobs to change the two parameters it would be a lot easier to play with the settings and find the best combo. Having one knob means having to remember how well a setting several twists away works; much harder. 73 Bill AE6JV On 1/14/19 at 5:19 AM, [hidden email] (John Stengrevics) wrote: >Given the increased noise levels most hams face, I emailed >Wayne to ask if improved noise reduction & noise blanking were >on their project list. He said no. So, any improvements are >apparently a long way off. ----------------------------------------------------------------------- Bill Frantz | Ham radio contesting is a | Periwinkle (408)356-8506 | contact sport. | 16345 Englewood Ave www.pwpconsult.com | - Ken Widelitz K6LA / VY2TT | Los Gatos, CA 95032 ______________________________________________________________ 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 Message delivered to [hidden email] |
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Yes, perhaps the RIT knob could be employed to step the NR selection
between F1, F2, F3, etc. The RIT control is not used for anything while the NR display is engaged. 73, Drew AF2Z On 01/14/19 12:42, Bill Frantz wrote: > The NR change I would like is "just" a UI change. If I could temporarily > set up two knobs to change the two parameters it would be a lot easier > to play with the settings and find the best combo. Having one knob means > having to remember how well a setting several twists away works; much > harder. > > 73 Bill AE6JV > > On 1/14/19 at 5:19 AM, [hidden email] (John Stengrevics) wrote: > >> Given the increased noise levels most hams face, I emailed Wayne to >> ask if improved noise reduction & noise blanking were on their project >> list. He said no. So, any improvements are apparently a long way off. > ----------------------------------------------------------------------- > Bill Frantz | Ham radio contesting is a | Periwinkle > (408)356-8506 | contact sport. | 16345 Englewood Ave > www.pwpconsult.com | - Ken Widelitz K6LA / VY2TT | Los Gatos, CA 95032 > > ______________________________________________________________ > 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 > Message delivered to [hidden email] > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by stengrevics
On 1/14/19 at 5:19 AM, [hidden email] (John Stengrevics) wrote:
Given the increased noise levels most hams face, I emailed Wayne to ask if improved noise reduction & noise blanking were on their project list. He said no. So, any improvements are apparently a long way off. WOW - that is indeed disappointing. Guess that pretty much negates this thread. There were some good ideas put forth - and much of it software (updatable??). Is the K3 now a developmental orphan? Bill W2BLC ______________________________________________________________ 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 Message delivered to [hidden email] |
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Bill,
Certainly not - any firmware changes to the K3S are applicable to the K3 as well. But the K3 is now 10 years old, and there is now not much new engineering effort going on to make improvements. If problems develop, they will certainly be addresses - perhaps even with top priority depending on how serious. Even the 20 year old K2 still has a lot of attention at Elecraft and is still being actively sold. Even the discontinued products are being fully addressed by Elecraft support. Yes, I am certain there is considerable effort on some new product (there always is), and K3 improvements have simply been moved to a lower priority. 73, Don W3FPR On 1/14/2019 2:49 PM, bill wrote: > > Is the K3 now a developmental orphan? > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Bill Frantz
I find the K3's NB function fantastic. NR works very well, but it takes a
while to tweak it in. Bill's idea below sounds like a great idea! 73 Eric WD6DBM On Mon, Jan 14, 2019, 9:42 AM Bill Frantz <[hidden email] wrote: > The NR change I would like is "just" a UI change. If I could > temporarily set up two knobs to change the two parameters it > would be a lot easier to play with the settings and find the > best combo. Having one knob means having to remember how well a > setting several twists away works; much harder. > > 73 Bill AE6JV > > > 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 Message delivered to [hidden email] |
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