I am unable to get the Text Decode function on my K3 to produce accurate results. I have employed the tweaks suggested in the K3 manual, but the text produced bears little resemblance to the code that was sent.
Ordinarily I would ascribe a problem like this to operator error - but I don’t think that this is the case. Any suggestions and/or observations would be appreciated. Thanks, Brian, K8GRR Sent from my iPhone ______________________________________________________________ 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] |
Are you using the CWT function to tune the VFO to the correct frequency?
-de John NI0K B Deuby wrote on 10/7/2019 7:11 PM: > I am unable to get the Text Decode function on my K3 to produce accurate results. I have employed the tweaks suggested in the K3 manual, but the text produced bears little resemblance to the code that was sent. > > Ordinarily I would ascribe a problem like this to operator error - but I don’t think that this is the case. > > Any suggestions and/or observations would be appreciated. > > Thanks, > > Brian, K8GRR > > Sent from my iPhone > ______________________________________________________________ > 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] |
In reply to this post by wmbrian
Brian,
It does work. But it usually takes a pretty good signal. I have gone over to CW Skimmer as it appears to be t he best thing on the street, better than most all of the others. I can contest with it at a pretty good clip. The setup is slightly involved, but once set up it really works well and can control the radio. 73, Barry K3NDM ------ Original Message ------ From: "B Deuby" <[hidden email]> To: [hidden email] Sent: 10/7/2019 8:11:24 PM Subject: [Elecraft] K3 CW Text Decoding >I am unable to get the Text Decode function on my K3 to produce accurate results. I have employed the tweaks suggested in the K3 manual, but the text produced bears little resemblance to the code that was sent. > >Ordinarily I would ascribe a problem like this to operator error - but I don’t think that this is the case. > >Any suggestions and/or observations would be appreciated. > >Thanks, > >Brian, K8GRR > >Sent from my iPhone >______________________________________________________________ >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] |
CW Skimmer not only has a great decoder, it has the best waterfall display I've seen. On top of that, the waterfall runs right to left like all narrowband waterfalls should so that you can read left to right to visually decode a CW signal several seconds after the fact if you miss a character when decoding by ear. I have often used CW Skimmer in a CW contest in narrowband audio mode with decoding turned off for this purpose. It works great and saves asking for repeats if you happened to miss an element. I once proposed here in this reflector that it would be nice if the K4 could have the option to do the same thing but all I heard back was crickets. 73, Dave AB7E On 10/7/2019 5:46 PM, Barry wrote: > Brian, > It does work. But it usually takes a pretty good signal. I have > gone over to CW Skimmer as it appears to be t he best thing on the > street, better than most all of the others. I can contest with it at a > pretty good clip. The setup is slightly involved, but once set up it > really works well and can control the radio. > > 73, > Barry > K3NDM ______________________________________________________________ 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] |
Just be sure you give it a fair shake after you install it. I installed it
and sort of played with it unseriously. Then when I really started to dive into it, I discovered the 30 day timer had expired. And I didn’t get a chance to justify to myself the expense. I’m now building a laptop for ham-only use and will reinstall it and try again. On Mon, Oct 7, 2019 at 22:04 David Gilbert <[hidden email]> wrote: > > CW Skimmer not only has a great decoder, it has the best waterfall > display I've seen. On top of that, the waterfall runs right to left > like all narrowband waterfalls should so that you can read left to right > to visually decode a CW signal several seconds after the fact if you > miss a character when decoding by ear. I have often used CW Skimmer in > a CW contest in narrowband audio mode with decoding turned off for this > purpose. It works great and saves asking for repeats if you happened to > miss an element. > > I once proposed here in this reflector that it would be nice if the K4 > could have the option to do the same thing but all I heard back was > crickets. > > 73, > Dave AB7E > > > > On 10/7/2019 5:46 PM, Barry wrote: > > Brian, > > It does work. But it usually takes a pretty good signal. I have > > gone over to CW Skimmer as it appears to be t he best thing on the > > street, better than most all of the others. I can contest with it at a > > pretty good clip. The setup is slightly involved, but once set up it > > really works well and can control the radio. > > > > 73, > > Barry > > K3NDM > > ______________________________________________________________ > 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] -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40°45.68' N 75°17.33' W) Grid: *FN20is* ______________________________________________________________ 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] |
If you haven't played with CW Skimmer much, here's a couple of points of interest. 1. You can run multiple instances. I fed the Line Out from my K3 into the sound card of my computer, and had one instance of CW SKimmer display a waterfall of the narrow band audio from the main receiver and another instance of CW Skimmer display the narrow band audio from the sub receiver. You'd be amazed at how distinct the dits and dahs look compared to just about every other waterfall application I've ever seen. You can shrink the vertical display height of both instances of CW Skimmer to make them fit above your logging program on a decent sized monitor. Imagine being able to pick out the callsign of a station on VFO B while you are focused on working somebody on VFO A ... even if he gave his callsign several seconds before you looked at the VFO B waterfall. 2. There is a command that will pause the CW Skimmer waterfall. It's a toggle ... hit it once to pause and hit it again to restart. I don't remember the command off the top of my head but I remember mapping it to a key on the keyboard using the outstanding free application called AutoHotKey. I didn't have to use it very often, but any time I blew a received report I'd just tap that key and it would let me visually decode whatever I busted and correct it after the contact, and since the display was paused I could do it when it was convenient. 3. If you turn off the decode in CW Skimmer it is simply a waterfall and qualifies for unassisted categories, but the visual display cuts you a lot of slack for human decoding. Just read the dots and dashes in your mind as dits and dahs and you'd be surprised how quickly you learn to decode visually ... except now you have a "do over" capability to help you out, or alternatively have a brief record of whatever is happening on one VFO while you are active on the other. It's almost like turning one operator into one and a half operators. 4. You don't need ANY additional hardware to use CW Skimmer in audio mode. 73, Dave AB7E On 10/7/2019 7:26 PM, rich hurd WC3T wrote: > Just be sure you give it a fair shake after you install it. I > installed it and sort of played with it unseriously. Then when I > really started to dive into it, I discovered the 30 day timer had > expired. And I didn’t get a chance to justify to myself the expense. > > I’m now building a laptop for ham-only use and will reinstall it and > try again. > > On Mon, Oct 7, 2019 at 22:04 David Gilbert <[hidden email] > <mailto:[hidden email]>> wrote: > > > CW Skimmer not only has a great decoder, it has the best waterfall > display I've seen. On top of that, the waterfall runs right to left > like all narrowband waterfalls should so that you can read left to > right > to visually decode a CW signal several seconds after the fact if you > miss a character when decoding by ear. I have often used CW > Skimmer in > a CW contest in narrowband audio mode with decoding turned off for > this > purpose. It works great and saves asking for repeats if you > happened to > miss an element. > > I once proposed here in this reflector that it would be nice if > the K4 > could have the option to do the same thing but all I heard back was > crickets. > > 73, > Dave AB7E > > > > On 10/7/2019 5:46 PM, Barry wrote: > > Brian, > > It does work. But it usually takes a pretty good signal. I have > > gone over to CW Skimmer as it appears to be t he best thing on the > > street, better than most all of the others. I can contest with > it at a > > pretty good clip. The setup is slightly involved, but once set > up it > > really works well and can control the radio. > > > > 73, > > Barry > > K3NDM > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > <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] <mailto:[hidden email]> > > -- > 72, > Rich Hurd / WC3T / DMR: 3142737 > Northampton County RACES, EPA-ARRL Public Information Officer for Scouting > Latitude: 40.761621 Longitude: -75.288988 (40°45.68' N 75°17.33' W) > Grid: *FN20is* > ______________________________________________________________ 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] |
In reply to this post by wmbrian
In my experience, it only works on a big signal, which is when you don’t need it.
John WA1EAZ Sent from my iPhone > On Oct 8, 2019, at 2:11 AM, B Deuby <[hidden email]> wrote: > > I am unable to get the Text Decode function on my K3 to produce accurate results. I have employed the tweaks suggested in the K3 manual, but the text produced bears little resemblance to the code that was sent. > > Ordinarily I would ascribe a problem like this to operator error - but I don’t think that this is the case. > > Any suggestions and/or observations would be appreciated. > > Thanks, > > Brian, K8GRR > > Sent from my iPhone > ______________________________________________________________ > 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] |
In reply to this post by David Gilbert
Dave,
Your last comment is correct. However, CW Skimmer comes into its own when you feed it IF I&Q data. You can see what is happening across the band or a portion of it and still read the signal narrow band. You do this by clicking on the signal you want to pursue and and listen in narrow band. By clicking on the wanted signal, the radio is tuned to it. This does require a little set up and setting offsets, but it is really worth it. A little interesting point: in a little less than rigorous testing, I found that that Skimmer seems to work a bit better using I&Q data rather than just the receiver audio. But, that was not a rigorous test and someone who is really interested can do the follow up. 73, Barry K3NDM ------ Original Message ------ From: "David Gilbert" <[hidden email]> To: "rich hurd WC3T" <[hidden email]> Cc: [hidden email] Sent: 10/8/2019 12:23:13 AM Subject: Re: [Elecraft] K3 CW Text Decoding > >If you haven't played with CW Skimmer much, here's a couple of points of interest. > >1. You can run multiple instances. I fed the Line Out from my K3 into the sound card of my computer, and had one instance of CW SKimmer display a waterfall of the narrow band audio from the main receiver and another instance of CW Skimmer display the narrow band audio from the sub receiver. You'd be amazed at how distinct the dits and dahs look compared to just about every other waterfall application I've ever seen. You can shrink the vertical display height of both instances of CW Skimmer to make them fit above your logging program on a decent sized monitor. Imagine being able to pick out the callsign of a station on VFO B while you are focused on working somebody on VFO A ... even if he gave his callsign several seconds before you looked at the VFO B waterfall. > >2. There is a command that will pause the CW Skimmer waterfall. It's a toggle ... hit it once to pause and hit it again to restart. I don't remember the command off the top of my head but I remember mapping it to a key on the keyboard using the outstanding free application called AutoHotKey. I didn't have to use it very often, but any time I blew a received report I'd just tap that key and it would let me visually decode whatever I busted and correct it after the contact, and since the display was paused I could do it when it was convenient. > >3. If you turn off the decode in CW Skimmer it is simply a waterfall and qualifies for unassisted categories, but the visual display cuts you a lot of slack for human decoding. Just read the dots and dashes in your mind as dits and dahs and you'd be surprised how quickly you learn to decode visually ... except now you have a "do over" capability to help you out, or alternatively have a brief record of whatever is happening on one VFO while you are active on the other. It's almost like turning one operator into one and a half operators. > >4. You don't need ANY additional hardware to use CW Skimmer in audio mode. > >73, >Dave AB7E > > > >On 10/7/2019 7:26 PM, rich hurd WC3T wrote: >>Just be sure you give it a fair shake after you install it. I installed it and sort of played with it unseriously. Then when I really started to dive into it, I discovered the 30 day timer had expired. And I didn’t get a chance to justify to myself the expense. >> >>I’m now building a laptop for ham-only use and will reinstall it and try again. >> >>On Mon, Oct 7, 2019 at 22:04 David Gilbert <[hidden email] <mailto:[hidden email]>> wrote: >> >> >> CW Skimmer not only has a great decoder, it has the best waterfall >> display I've seen. On top of that, the waterfall runs right to left >> like all narrowband waterfalls should so that you can read left to >> right >> to visually decode a CW signal several seconds after the fact if you >> miss a character when decoding by ear. I have often used CW >> Skimmer in >> a CW contest in narrowband audio mode with decoding turned off for >> this >> purpose. It works great and saves asking for repeats if you >> happened to >> miss an element. >> >> I once proposed here in this reflector that it would be nice if >> the K4 >> could have the option to do the same thing but all I heard back was >> crickets. >> >> 73, >> Dave AB7E >> >> >> >> On 10/7/2019 5:46 PM, Barry wrote: >> > Brian, >> > It does work. But it usually takes a pretty good signal. I have >> > gone over to CW Skimmer as it appears to be t he best thing on the >> > street, better than most all of the others. I can contest with >> it at a >> > pretty good clip. The setup is slightly involved, but once set >> up it >> > really works well and can control the radio. >> > >> > 73, >> > Barry >> > K3NDM >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> <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] <mailto:[hidden email]> >>-- 72, >>Rich Hurd / WC3T / DMR: 3142737 >>Northampton County RACES, EPA-ARRL Public Information Officer for Scouting >>Latitude: 40.761621 Longitude: -75.288988 (40°45.68' N 75°17.33' W) Grid: *FN20is* >> > >______________________________________________________________ >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] |
In reply to this post by Barry LaZar
I feel that KX3 has a much better CW decoder than K3.
Ignacy, NO9E -- 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] |
I still have not found the magic to get my kx3 to reliably yield
anything but a stream of E and *. :( Scott AD6YT On Tue, Oct 8, 2019 at 12:17 PM Ignacy <[hidden email]> wrote: > > I feel that KX3 has a much better CW decoder than K3. > Ignacy, NO9E > > > > -- > 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] -- Scott Small ______________________________________________________________ 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] |
Mine works pretty well. I use it during CW contests to help copy the
speed demons. Works well for me, so I know the system works. How about an email to Elecraft support? -de John NI0K Tox wrote on 10/8/2019 6:26 PM: > I still have not found the magic to get my kx3 to reliably yield > anything but a stream of E and *. :( > > Scott > AD6YT > > On Tue, Oct 8, 2019 at 12:17 PM Ignacy <[hidden email]> wrote: >> I feel that KX3 has a much better CW decoder than K3. >> Ignacy, NO9E >> >> >> >> -- >> 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] > ______________________________________________________________ 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] |
In reply to this post by Tox
Scott:
The TEXT DEC level {Text Decode} is set too sensitive and/or the RF Gain is too high. I use #3 for the TEXT DEC sensitivity on most bands, depending on noise. And the RF Gain is reduced such that the CWT bar only flashes on a clean signal. Getting * and E's is an indication the sensitivity is too high and/or the RF Gain is too high. Also correct tuning is necessary. With CWT active you should see the flashing bar in the center. If to the left or right the tuning is not correct based on the sidetone pitch you have selected. I get tuning close and then use the SPOT function to correctly zero beat the signal. This is when CWT is ON. Copying DK9PY on 14.039 with 100% correct print this morning. He is sending by keyboard which makes for good copy. Many hand sent CW signals are lacking in rhythm, timing and spacing for 100% correct copy. However, you should be able to copy some portion of the messages. 73 Bob, K4TAX On 10/8/2019 6:26 PM, Tox wrote: > I still have not found the magic to get my kx3 to reliably yield > anything but a stream of E and *. :( > > Scott > AD6YT > > On Tue, Oct 8, 2019 at 12:17 PM Ignacy <[hidden email]> wrote: >> I feel that KX3 has a much better CW decoder than K3. >> Ignacy, NO9E >> >> >> >> -- >> 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] > > ______________________________________________________________ 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] |
Thanks Bob! I'll poke at those.
Scott ad6yt On Wed, Oct 9, 2019 at 6:13 AM Bob McGraw K4TAX <[hidden email]> wrote: > > Scott: > > The TEXT DEC level {Text Decode} is set too sensitive and/or the RF Gain > is too high. I use #3 for the TEXT DEC sensitivity on most bands, > depending on noise. And the RF Gain is reduced such that the CWT bar > only flashes on a clean signal. Getting * and E's is an indication the > sensitivity is too high and/or the RF Gain is too high. Also correct > tuning is necessary. With CWT active you should see the flashing bar in > the center. If to the left or right the tuning is not correct based on > the sidetone pitch you have selected. I get tuning close and then use > the SPOT function to correctly zero beat the signal. This is when CWT > is ON. > > Copying DK9PY on 14.039 with 100% correct print this morning. He is > sending by keyboard which makes for good copy. Many hand sent CW > signals are lacking in rhythm, timing and spacing for 100% correct > copy. However, you should be able to copy some portion of the messages. > > 73 > > Bob, K4TAX > > On 10/8/2019 6:26 PM, Tox wrote: > > I still have not found the magic to get my kx3 to reliably yield > > anything but a stream of E and *. :( > > > > Scott > > AD6YT > > > > On Tue, Oct 8, 2019 at 12:17 PM Ignacy <[hidden email]> wrote: > >> I feel that KX3 has a much better CW decoder than K3. > >> Ignacy, NO9E > >> > >> > >> > >> -- > >> 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] > > > > > > ______________________________________________________________ > 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] |
In reply to this post by wmbrian
Barry,
I had CW skimmer installed on my old winXP computer but was not impressed with CW detection of weak CW (same for the K3). But I was using K3 line-out audio so maybe I will try it with my new i5 64-bit machine and feed IF via LP-Pan and UADC4 (brand new A/D converter which supplies 96KHz dual IQ for diversity Rx). The UADC4 is the latest toy for the digital-eme crowd (but should find use outside of eme for general digital op). Its not cheap but has totally flat audio bandwidth which is supposed to improve IMD performance for urban users. I am just building my new i5 win-10pro so haven't used it on the air, yet. I will add a webpage for the UADC4, once operational. 73, Ed - KL7UW Subject: Re: [Elecraft] K3 CW Text Decoding Message-ID: <em20cef813-a61b-4d8e-9912-a225efc24835@office-desktop-i> Content-Type: text/plain; format=flowed; charset=utf-8 Dave, Your last comment is correct. However, CW Skimmer comes into its own when you feed it IF I&Q data. You can see what is happening across the band or a portion of it and still read the signal narrow band. You do this by clicking on the signal you want to pursue and and listen in narrow band. By clicking on the wanted signal, the radio is tuned to it. This does require a little set up and setting offsets, but it is really worth it. A little interesting point: in a little less than rigorous testing, I found that that Skimmer seems to work a bit better using I&Q data rather than just the receiver audio. But, that was not a rigorous test and someone who is really interested can do the follow up. 73, Barry K3NDM 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [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] |
Ed,
It seems to make little to no difference what operating system you use. CW Skimmer will never out perform your ears for weak signals; I don't think it was ever designed for weak signals. But, for most every other CW signal that is reasonably sent, it does seem to work well. And, to me it seems to work better when using I&Q data vice just the audio out of the radio. This just may be the sound card I was using at the time. I just haven't done the in depth testing; I do admit it would some interesting testing. I'm presently using LP-Pan and a Steinberg UR22 running at 196KHz sampling rate with my receiver usually set to around 250-300 Hz while contesting. I do suspect that the A/D will make a difference and my external sound card should be superior to my internal one. What I do know is that Skimmer uses a statistical approach vice just sampling, and in a contest when I'm tired, it does better than I do. Do keep us up with whatever you find. 73, Barry K3NDM ------ Original Message ------ From: "Edward R Cole" <[hidden email]> To: "Elecraft Reflector" <[hidden email]> Sent: 10/9/2019 2:43:58 PM Subject: Re: [Elecraft] K3 CW Text Decoding >Barry, > >I had CW skimmer installed on my old winXP computer but was not impressed with CW detection of weak CW (same for the K3). But I was using K3 line-out audio so maybe I will try it with my new i5 64-bit machine and feed IF via LP-Pan and UADC4 (brand new A/D converter which supplies 96KHz dual IQ for diversity Rx). > >The UADC4 is the latest toy for the digital-eme crowd (but should find use outside of eme for general digital op). Its not cheap but has totally flat audio bandwidth which is supposed to improve IMD performance for urban users. > >I am just building my new i5 win-10pro so haven't used it on the air, yet. I will add a webpage for the UADC4, once operational. > >73, Ed - KL7UW > >Subject: Re: [Elecraft] K3 CW Text Decoding >Message-ID: <em20cef813-a61b-4d8e-9912-a225efc24835@office-desktop-i> >Content-Type: text/plain; format=flowed; charset=utf-8 > >Dave, > Your last comment is correct. However, CW Skimmer comes into its own >when you feed it IF I&Q data. You can see what is happening across the >band or a portion of it and still read the signal narrow band. You do >this by clicking on the signal you want to pursue and and listen in >narrow band. By clicking on the wanted signal, the radio is tuned to it. >This does require a little set up and setting offsets, but it is really >worth it. A little interesting point: in a little less than rigorous >testing, I found that that Skimmer seems to work a bit better using I&Q >data rather than just the receiver audio. But, that was not a rigorous >test and someone who is really interested can do the follow up. > >73, >Barry >K3NDM > > >73, Ed - KL7UW >http://www.kl7uw.com >Dubus-NA Business mail: >[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] ______________________________________________________________ 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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