Re: [Elecraft] CW QRQ and SPLIT wayne has announced some small rit in the past !!!!
wayne has announced some small rit in the past wayne at Apr.28, 2011 If you use QRQ mode (high-speed CW/ultra-fast break-in), you'll notice that the latest firmware provides a temporary solution to the problem of having to turn off QRQ mode in order to use SPLIT, RIT, or XIT. Previously, you had to turn QRQ mode off manually using the CONFIG:CW QRQ menu entry. Now, engaging any type of split will automatically turn QRQ mode off, then turn it back on once you've disabled all splits. We're still planning to allow limited-range RIT with QRQ mode turned on in a future firmware release. But several QRQ users had suggested this interim change. I use QRQ mode all the time, and I've found the change to be very convenient. 73, Wayne N6KR -Ursprüngliche Nachricht- Von: Chester Alderman [mailto:alderm...@windstream.net] Gesendet: Montag, 17. Februar 2014 18:39 An: 'John Bohnovic'; Klaus Koppendorfer Cc: 'Elecraft Reflector'; d...@w3fpr.com Betreff: RE: [Elecraft] CW QRQ and SPLIT But if you have several hams in the round-table, you sure do need RIT because you know all hams are not going to be zero beat. Besides that, yes, ever if your one QSO partner is zero beat, you need the ability to slightly change the Rx QRQ frequency so the received tone suits your ears. Copying QRQ requires one to be able to use standard CW receiver functions. That is why I, personally, can't use my K3 for full QSK QRQ operation. Since this issue has been on-going for several years, it most likely can not be fixed? Or it is just being ignored! 73, Tom - W4BQF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Bohnovic Sent: Monday, February 17, 2014 11:36 AM To: Klaus Koppendorfer Cc: Elecraft Reflector; d...@w3fpr.com Subject: Re: [Elecraft] CW QRQ and SPLIT Do you need the RIT mode when the other station is zero beat with your signal? John/K4WJ ex KN8PXG K8PXG ZF2HZ Sent from my iPad On Feb 17, 2014, at 3:05 AM, Klaus Koppendorfer k...@ccf.net wrote: It is sad that QRQ mode has no RIT !!! Cw up from 30 to 35 WPM hast o use QRQ mode because of struggling dits and dahs Many highspeed ops VHSC EHSC has changed from k3 to FT5000 because of leaking RIT with QRQ with K3 Maybe Wayne will sharpen Firmware in future for QRQ mode If rit/split is necessary i use 2nd RX but this is not so comfortable 73 Oe6kyg Klaus -Ursprüngliche Nachricht- Von: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] Im Auftrag von Don Wilhelm Gesendet: Samstag, 15. Februar 2014 22:06 An: Jorge Diez - CX6VM; 'Elecraft Reflector' Betreff: Re: [Elecraft] CW QRQ and SPLIT Jorge, AFAIK, probably not. The frequency must be shifted from RX to TX, and with QRQ in effect it is not possible to shift that fast. A K3 with 'chirp' on the ham bands would not be a nice thing to hear. 73, Don W3FPR On 2/15/2014 2:33 PM, Jorge Diez - CX6VM wrote: I saw in the manual of K3 that CW QRQ is temporarily turned OFF with SPLIT. Will be in the future any way to use it in SPLIT mode or is impossible? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Please test KPA500 rev. 1.38 if you get a chance
I just installed KPA rev.1.38 and don't see any difference from 1.37. Both work very well here (with K3 4.83 and KAT 1.58). I will report if I find anything not working as expected. KAT 1.58 removed a software bug in the KAT which meant that the KAT did not output anything on 28MHz when the KPA was OPR, but worked OK when the KPA was STBY (problem only on 28 MHz). The bug was suddenly triggered by something unknown (to me). I am operating RC using Teamviewer, keying with Winkeyer and using KAT500-Remote and KPA500-Remote, both ver. 1.0.5.0. I am quite pleased with both. It is in fact possible to include everything (HRD (including logbook), WKey, KAT, KPA and other SW used for RC with iPad or iPhone) on a single laptop screen. However, I have a few suggestions for improvements of the KAT500-Remote: - The tune button should change colour (more clearly) when Tune is activated - An indication should show Power OFF when the power of KAT is switched OFF - The coloured fields for SWR should change colour following the SWR - VFWD and VRFL could include peak values ( it is a nice-to-have feature, but the living values are essential when working remotely with weather sensitive antennas) All in all I must say both programs are very useful even as they stand. Congratulations Elecraft. 73 de OZ4UN Poul-Erik Den 18/02/2014 kl. 17.45 skrev Wayne Burdick n...@elecraft.com: Hi all, We updated the KPA500 beta firmware to revision 1.38 yesterday (from 1.37). The change was minor, pertaining to initial conditions when the KPA500 is used at remote locations. If you get a chance, please load rev. 1.38 and verify that it is working well for all normal operation. Once we see a few more positive reports, we'll be going to production status on the K3, KPA500, and KAT500 beta firmware releases. If you haven't already loaded K3 rev 4.83 and KAT500 rev 1.58, I'd encourage you to do these updates as well. The difference between the new firmware and previous production releases is pretty dramatic, as reported by beta testers over the past several days. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 firmware question
What is the version number of the current KX3 firmware that is available? Sent from my iPhone this time __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 firmware question
MCU 1.87 / DSP 1.28 11-26-2013 73 de Hal la4xx On 14-02-19, Gerry leary gerrylear...@icloud.com wrote: What is the version number of the current KX3 firmware that is available? Sent from my iPhone this time __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] CW QRQ and SPLIT wayne has announced some small rit in the past !!!!
The 'problem' with QRQ CW is that if you are running much over 60 wpm, you have to seriously concentrate on your copy and sending. I personally, do not require Split when operating QRQ, but I sure would love to have RIT for at least 0.5kc. That, for me, would solve the issue. And yes, Elecraft has stated in the past that they would 'look into it', but that was several years ago and I finally gave up on it happening. 73, Tom - W4BQF -Original Message- From: Klaus Koppendorfer [mailto:k...@ccf.net] Sent: Wednesday, February 19, 2014 3:24 AM To: Chester Alderman; 'John Bohnovic' Cc: 'Elecraft Reflector'; d...@w3fpr.com Subject: AW: [Elecraft] CW QRQ and SPLIT wayne has announced some small rit in the past wayne has announced some small rit in the past wayne at Apr.28, 2011 If you use QRQ mode (high-speed CW/ultra-fast break-in), you'll notice that the latest firmware provides a temporary solution to the problem of having to turn off QRQ mode in order to use SPLIT, RIT, or XIT. Previously, you had to turn QRQ mode off manually using the CONFIG:CW QRQ menu entry. Now, engaging any type of split will automatically turn QRQ mode off, then turn it back on once you've disabled all splits. We're still planning to allow limited-range RIT with QRQ mode turned on in a future firmware release. But several QRQ users had suggested this interim change. I use QRQ mode all the time, and I've found the change to be very convenient. 73, Wayne N6KR -Ursprüngliche Nachricht- Von: Chester Alderman [mailto:alderm...@windstream.net] Gesendet: Montag, 17. Februar 2014 18:39 An: 'John Bohnovic'; Klaus Koppendorfer Cc: 'Elecraft Reflector'; d...@w3fpr.com Betreff: RE: [Elecraft] CW QRQ and SPLIT But if you have several hams in the round-table, you sure do need RIT because you know all hams are not going to be zero beat. Besides that, yes, ever if your one QSO partner is zero beat, you need the ability to slightly change the Rx QRQ frequency so the received tone suits your ears. Copying QRQ requires one to be able to use standard CW receiver functions. That is why I, personally, can't use my K3 for full QSK QRQ operation. Since this issue has been on-going for several years, it most likely can not be fixed? Or it is just being ignored! 73, Tom - W4BQF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Bohnovic Sent: Monday, February 17, 2014 11:36 AM To: Klaus Koppendorfer Cc: Elecraft Reflector; d...@w3fpr.com Subject: Re: [Elecraft] CW QRQ and SPLIT Do you need the RIT mode when the other station is zero beat with your signal? John/K4WJ ex KN8PXG K8PXG ZF2HZ Sent from my iPad On Feb 17, 2014, at 3:05 AM, Klaus Koppendorfer k...@ccf.net wrote: It is sad that QRQ mode has no RIT !!! Cw up from 30 to 35 WPM hast o use QRQ mode because of struggling dits and dahs Many highspeed ops VHSC EHSC has changed from k3 to FT5000 because of leaking RIT with QRQ with K3 Maybe Wayne will sharpen Firmware in future for QRQ mode If rit/split is necessary i use 2nd RX but this is not so comfortable 73 Oe6kyg Klaus -Ursprüngliche Nachricht- Von: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] I'm Auftrag von Don Wilhelm Gesendet: Samstag, 15. Februar 2014 22:06 An: Jorge Diez - CX6VM; 'Elecraft Reflector' Betreff: Re: [Elecraft] CW QRQ and SPLIT Jorge, AFAIK, probably not. The frequency must be shifted from RX to TX, and with QRQ in effect it is not possible to shift that fast. A K3 with 'chirp' on the ham bands would not be a nice thing to hear. 73, Don W3FPR On 2/15/2014 2:33 PM, Jorge Diez - CX6VM wrote: I saw in the manual of K3 that CW QRQ is temporarily turned OFF with SPLIT. Will be in the future any way to use it in SPLIT mode or is impossible? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft
Re: [Elecraft] CW QRQ and SPLIT wayne has announced some small ritin the past !!!!
I would agree with Tommy, some small RIT would be helpful. It isn't only at 60 wpm that you notice some choppiness, but anything over 30 wpm makes a difference in sending without the QRQ being on. For some reason this is more evident when using KB However, in a three way QSO where only one station is off frequency, it seems to work out OK as I have to turn RIT off to copy the station on my frequency. It depends which way the order of TX occurs. Toby K4NH - Original Message - From: Chester Alderman alderm...@windstream.net To: 'Klaus Koppendorfer' k...@ccf.net; 'John Bohnovic' k...@att.net Cc: 'Elecraft Reflector' elecraft@mailman.qth.net; d...@w3fpr.com Sent: Wednesday, February 19, 2014 4:57 AM Subject: Re: [Elecraft] CW QRQ and SPLIT wayne has announced some small ritin the past The 'problem' with QRQ CW is that if you are running much over 60 wpm, you have to seriously concentrate on your copy and sending. I personally, do not require Split when operating QRQ, but I sure would love to have RIT for at least 0.5kc. That, for me, would solve the issue. And yes, Elecraft has stated in the past that they would 'look into it', but that was several years ago and I finally gave up on it happening. 73, Tom - W4BQF -Original Message- From: Klaus Koppendorfer [mailto:k...@ccf.net] Sent: Wednesday, February 19, 2014 3:24 AM To: Chester Alderman; 'John Bohnovic' Cc: 'Elecraft Reflector'; d...@w3fpr.com Subject: AW: [Elecraft] CW QRQ and SPLIT wayne has announced some small rit in the past wayne has announced some small rit in the past wayne at Apr.28, 2011 If you use QRQ mode (high-speed CW/ultra-fast break-in), you'll notice that the latest firmware provides a temporary solution to the problem of having to turn off QRQ mode in order to use SPLIT, RIT, or XIT. Previously, you had to turn QRQ mode off manually using the CONFIG:CW QRQ menu entry. Now, engaging any type of split will automatically turn QRQ mode off, then turn it back on once you've disabled all splits. We're still planning to allow limited-range RIT with QRQ mode turned on in a future firmware release. But several QRQ users had suggested this interim change. I use QRQ mode all the time, and I've found the change to be very convenient. 73, Wayne N6KR -Ursprüngliche Nachricht- Von: Chester Alderman [mailto:alderm...@windstream.net] Gesendet: Montag, 17. Februar 2014 18:39 An: 'John Bohnovic'; Klaus Koppendorfer Cc: 'Elecraft Reflector'; d...@w3fpr.com Betreff: RE: [Elecraft] CW QRQ and SPLIT But if you have several hams in the round-table, you sure do need RIT because you know all hams are not going to be zero beat. Besides that, yes, ever if your one QSO partner is zero beat, you need the ability to slightly change the Rx QRQ frequency so the received tone suits your ears. Copying QRQ requires one to be able to use standard CW receiver functions. That is why I, personally, can't use my K3 for full QSK QRQ operation. Since this issue has been on-going for several years, it most likely can not be fixed? Or it is just being ignored! 73, Tom - W4BQF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Bohnovic Sent: Monday, February 17, 2014 11:36 AM To: Klaus Koppendorfer Cc: Elecraft Reflector; d...@w3fpr.com Subject: Re: [Elecraft] CW QRQ and SPLIT Do you need the RIT mode when the other station is zero beat with your signal? John/K4WJ ex KN8PXG K8PXG ZF2HZ Sent from my iPad On Feb 17, 2014, at 3:05 AM, Klaus Koppendorfer k...@ccf.net wrote: It is sad that QRQ mode has no RIT !!! Cw up from 30 to 35 WPM hast o use QRQ mode because of struggling dits and dahs Many highspeed ops VHSC EHSC has changed from k3 to FT5000 because of leaking RIT with QRQ with K3 Maybe Wayne will sharpen Firmware in future for QRQ mode If rit/split is necessary i use 2nd RX but this is not so comfortable 73 Oe6kyg Klaus -Ursprüngliche Nachricht- Von: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] I'm Auftrag von Don Wilhelm Gesendet: Samstag, 15. Februar 2014 22:06 An: Jorge Diez - CX6VM; 'Elecraft Reflector' Betreff: Re: [Elecraft] CW QRQ and SPLIT Jorge, AFAIK, probably not. The frequency must be shifted from RX to TX, and with QRQ in effect it is not possible to shift that fast. A K3 with 'chirp' on the ham bands would not be a nice thing to hear. 73, Don W3FPR On 2/15/2014 2:33 PM, Jorge Diez - CX6VM wrote: I saw in the manual of K3 that CW QRQ is temporarily turned OFF with SPLIT. Will be in the future any way to use it in SPLIT mode or is impossible? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:
Re: [Elecraft] KX3 firmware question
For future reference. See link below. http://www.elecraft.com/software/elecraft_software_page.htm -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-firmware-question-tp7584433p7584437.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PayPal fees
Hi Bill - no punishment intended. Your initial reply was OK. I was just commenting on the very long thread of additional comments. 73, Eric List moderator elecraft.com On 2/18/2014 4:04 PM, Bill Turner wrote: ORIGINAL MESSAGE: (may be snipped) On 2/18/2014 1:14 PM, Sebastian, W4AS wrote: I think the question was what does this have to do with Elecraft? REPLY: It was in response to someone trying to sell his Elecraft. I wanted to help him and the buyer avoid unnecessary fees and it applies to future private party ads too. More proof that no good deed goes unpunished. :-) 73, Bill W6WRT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Subject: Re: PayPal fees
Just a quick comment. I made a purchase using PayPal last night from a ham friend for a piece of equipment. This is the first time I have encountered the choice of purchase for friend or family, or for good and services. I selected goods and services since I was purchasing something ($30 item with $10 shipping). I read the link https://www.paypal.com/webapps/mpp/send-money-online and am surprised to see this. I wonder how PayPal can enforce proper use? 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Noise, RFI ?
Using my K3 I was trying to pick up a ZL2 station (New Zealand) around 18.08 MHz this morning (about 9:50 AM PST) when this huge noise blanketed everything out. It was about 30/9 and absolutely solid across the spectrum shown on the P3. Using my KPA500, I switched to the 20 meter band -- same noise, same level, same broadband impact. I determined that the noise was from roughly 1400 KHz all the way up to 28.05 MHz. All about 30/9. About the time that I finished checking this full MF/HF spectrum of noise it switched off. Then, it switched on, and stayed on for about 5 seconds, then off again. I turned on my Icom R75. The next time the noise came on I checked it with the R75 and the same noise, same 30/9 level, same broad across the bands. Obviously man-made or under man control as it switched on and off and was on for various periods of time. This noise seems to be close, like generated in the neighborhood someplace. Anyone have ideas of the cause. You noise experts (Jim?) should have ideas. I was thinking maybe an arc welding machine but that is just a wild guess. It sure seems to be something that can be switched on and off. It is not periodic in that the on/off switching is at varying intervals. The longest on period is about one minute, the shortest on period about 2 seconds. And, it has been quiet for the last 10 minutes or so. Thanks for your help. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
I get this type of noise when my wife uses a laminator. I also get a lot of sporadic noise in the morning around the time people get up which I assume are hair driers and curling irons. It really could be anything, but probably something one of your neighbors has. Good luck finding it, if it continues. 73- Tom - wa4ta From: phys...@mac.com Date: Wed, 19 Feb 2014 10:15:42 -0800 To: Elecraft@mailman.qth.net Subject: [Elecraft] Noise, RFI ? Using my K3 I was trying to pick up a ZL2 station (New Zealand) around 18.08 MHz this morning (about 9:50 AM PST) when this huge noise blanketed everything out. It was about 30/9 and absolutely solid across the spectrum shown on the P3. Using my KPA500, I switched to the 20 meter band -- same noise, same level, same broadband impact. I determined that the noise was from roughly 1400 KHz all the way up to 28.05 MHz. All about 30/9. About the time that I finished checking this full MF/HF spectrum of noise it switched off. Then, it switched on, and stayed on for about 5 seconds, then off again. I turned on my Icom R75. The next time the noise came on I checked it with the R75 and the same noise, same 30/9 level, same broad across the bands. Obviously man-made or under man control as it switched on and off and was on for various periods of time. This noise seems to be close, like generated in the neighborhood someplace. Anyone have ideas of the cause. You noise experts (Jim?) should have ideas. I was thinking maybe an arc welding machine but that is just a wild guess. It sure seems to be something that can be switched on and off. It is not periodic in that the on/off switching is at varying intervals. The longest on period is about one minute, the shortest on period about 2 seconds. And, it has been quiet for the last 10 minutes or so. Thanks for your help. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3: Mode change while running DATA-A
I'm not asking for help fixing anything but just offering this as interesting phenomena that I encountered. A couple weeks ago I was running digital sw using the mode JT-65c (part of WSJT9.3) on 1296 eme and had two Australian stations reply on a chat room we use for coordinating that my signal seemed to be in LSB. They had trouble getting my fairly good eme signal to decode until the they noted the signal seemed to be LSB and they switched to LSB. I checked my K3 settings in DATA MD and DATA-A was selected for USB, plus I was receiving signals in USB. So how could this happen. I wondered if it had anything to do with the fact I was running split VFO's for Tx and Rx? Running split is needed at this high frequency because Doppler shift of frequencies can be as high as +/- 2-KHz. Unfortunately, the Aust stations had to QRT before I could try running without split. A day later I worked both with the same set up with all receiving USB with no problems. This quite puzzling as I have run JT-65 on 2m eme for years with the K3. I had not made any change in settings only moved operation to a different transverter (the same 28-MHz IF was used in the K3). I do not run any other digital modes so DATA-A is always selected when running digital. I commented to some other eme operators and they asked if my transverter used a inverting conversion (LO higher in freq than RF or IF), but I was receiving normally in USB with the same transverter?? The LO is fixed at 1268-MHz which I even checked with my counter. I had been noted on the MoonNet e-mail reflector of strange effects from Aurora on eme signals just hours earlier so I am now wondering if we were similarly affected. No way to verify it, so it will remain a mystery. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft Noise RFI
Phil, I would suggest that you eliminate sources within your home as noise sources before you search elsewhere. There are hundreds of potential noise sources in homes. Just a few examples would be: CFL and LED lights, low voltage lighting systems, electric blankets, air conditioner and heating systems and fans, electronic igniters in stoves, ovens, and boilers, most power supplies, plasma TV's, internet routers, doorbell transformers starting to go bad, battery chargers. You get the idea..nearly anything electronic, even devices that are turned off. So it would probably be easiest to turn off circuit breakers one at a time, or perhaps just turn off the main breaker and run a radio on battery power. I am sure others will offer many suggestions also. If your house is OK, you might drive around the neighborhood with your AM BC band radio tuned to a blank spot near the top of the dial and possibly you will get a real general idea of the extent of the problem. However at low frequencies like the BC band, noise/rfi can be propagated long distances (like 1000's of yards) over power lines, so the use of a directional antenna on something like an AM aircraft band portable, or possibly even a 6 or 2 meter AM, CW, or SSB receiver would be much better for localizing the noise. There has been much written on the internet and ham publications on locating and fixing noise. Good Luck, Rick KL7CW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Subject: Re: PayPal fees
I'm always amazed at the number of hams that request additional money if you pay with PayPal. They like the ability to get the money instantaneously but feel someone else should pay for this and PayPal doesn't deserve a fee for their service. Just build it into your price. Just one of my many quirks.. 73 Tex KA5Y -- View this message in context: http://elecraft.365791.n2.nabble.com/Subject-Re-PayPal-fees-tp7584439p758.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
One of the items that many overlook is in-freezer ice makers. They can make a lot of broadband noise when the heater is running. Yes - heater. Once the ice cubes are frozen they need to be ejected. In order to do this smoothly, the tray is heated up just enough to let the cubes pop loose. The heaters I've seen (and heard) use a type of PWM applied to a heating element, and the PWM creates broadband RFI. The heater is usually on for 1-2 minutes, but that probably varies by manufacturer. 73, matt W6NIA On Wed, 19 Feb 2014 13:29:22 -0500, you wrote: I get this type of noise when my wife uses a laminator. I also get a lot of sporadic noise in the morning around the time people get up which I assume are hair driers and curling irons. It really could be anything, but probably something one of your neighbors has. Good luck finding it, if it continues. 73- Tom - wa4ta From: phys...@mac.com Date: Wed, 19 Feb 2014 10:15:42 -0800 To: Elecraft@mailman.qth.net Subject: [Elecraft] Noise, RFI ? Using my K3 I was trying to pick up a ZL2 station (New Zealand) around 18.08 MHz this morning (about 9:50 AM PST) when this huge noise blanketed everything out. It was about 30/9 and absolutely solid across the spectrum shown on the P3. Using my KPA500, I switched to the 20 meter band -- same noise, same level, same broadband impact. I determined that the noise was from roughly 1400 KHz all the way up to 28.05 MHz. All about 30/9. About the time that I finished checking this full MF/HF spectrum of noise it switched off. Then, it switched on, and stayed on for about 5 seconds, then off again. I turned on my Icom R75. The next time the noise came on I checked it with the R75 and the same noise, same 30/9 level, same broad across the bands. Obviously man-made or under man control as it switched on and off and was on for various periods of time. This noise seems to be close, like generated in the neighborhood someplace. Anyone have ideas of the cause. You noise experts (Jim?) should have ideas. I was thinking maybe an arc welding machine but that is just a wild guess. It sure seems to be something that can be switched on and off. It is not periodic in that the on/off switching is at varying intervals. The longest on period is about one minute, the shortest on period about 2 seconds. And, it has been quiet for the last 10 minutes or so. Thanks for your help. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Matt Zilmer, W6NIA -- Give me six hours to chop down a tree and I will spend the first four sharpening the axe. -A. Lincoln __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
Matt, Well, then that source of this RFI is ruled out. Ice maker is off and I don't think it has been on in years -- it may not even work anymore. About the only time we might need ice is when we have a party of some sort (which is also rare) that needs ice and we just buy a bag down at the corner market. phil K7PEH On Feb 19, 2014, at 11:25 AM, Matt Zilmer mzil...@roadrunner.com wrote: One of the items that many overlook is in-freezer ice makers. They can make a lot of broadband noise when the heater is running. Yes - heater. Once the ice cubes are frozen they need to be ejected. In order to do this smoothly, the tray is heated up just enough to let the cubes pop loose. The heaters I've seen (and heard) use a type of PWM applied to a heating element, and the PWM creates broadband RFI. The heater is usually on for 1-2 minutes, but that probably varies by manufacturer. 73, matt W6NIA On Wed, 19 Feb 2014 13:29:22 -0500, you wrote: I get this type of noise when my wife uses a laminator. I also get a lot of sporadic noise in the morning around the time people get up which I assume are hair driers and curling irons. It really could be anything, but probably something one of your neighbors has. Good luck finding it, if it continues. 73- Tom - wa4ta From: phys...@mac.com Date: Wed, 19 Feb 2014 10:15:42 -0800 To: Elecraft@mailman.qth.net Subject: [Elecraft] Noise, RFI ? Using my K3 I was trying to pick up a ZL2 station (New Zealand) around 18.08 MHz this morning (about 9:50 AM PST) when this huge noise blanketed everything out. It was about 30/9 and absolutely solid across the spectrum shown on the P3. Using my KPA500, I switched to the 20 meter band -- same noise, same level, same broadband impact. I determined that the noise was from roughly 1400 KHz all the way up to 28.05 MHz. All about 30/9. About the time that I finished checking this full MF/HF spectrum of noise it switched off. Then, it switched on, and stayed on for about 5 seconds, then off again. I turned on my Icom R75. The next time the noise came on I checked it with the R75 and the same noise, same 30/9 level, same broad across the bands. Obviously man-made or under man control as it switched on and off and was on for various periods of time. This noise seems to be close, like generated in the neighborhood someplace. Anyone have ideas of the cause. You noise experts (Jim?) should have ideas. I was thinking maybe an arc welding machine but that is just a wild guess. It sure seems to be something that can be switched on and off. It is not periodic in that the on/off switching is at varying intervals. The longest on period is about one minute, the shortest on period about 2 seconds. And, it has been quiet for the last 10 minutes or so. Thanks for your help. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Matt Zilmer, W6NIA -- Give me six hours to chop down a tree and I will spend the first four sharpening the axe. -A. Lincoln __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Subject: Re: PayPal fees
Folks this thread has been ended by the moderator. Please take further of this topicdiscussion off list in the interest of limiting OT list overload for others. 73, Eric Moderator - really! elecraft.com On 2/19/2014 11:06 AM, pkhjr wrote: I'm always amazed at the number of hams that request additional money if you pay with PayPal. They like the ability to get the money instantaneously but feel someone else should pay for this and PayPal doesn't deserve a fee for their service. Just build it into your price. Just one of my many quirks.. 73 Tex KA5Y __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 feature request
I would find it helpful if the P3 markers A, B center could be made to extend below the signal line into the waterfall; it would help to center on the precise desired location to QSY to rather than guesstimate with the markers being obscured by the spectrum trace on top. Thank you, Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 waterfall legend?
Is there a resource on the internet where you can look at different screenshots and see what the source is for some of the signals that are translated by the waterfall? I see so many different geometric forms based on the nature of the Rf and they are a mystery to me. CW is pretty easy to detect, same with RTTY. Some of the other digital signals have their own appearance you see often. There are some signals I have heard before but now to see them portrayed on a screen as in a waterfall, they are surprising to me and I'd like to know what they are. For instance; I was on 10.1 MHz and there's that constant commercial RTTY station around 10.101 but next to it around 10.112 is another much larger signal and it takes a lot of bandwidth. At first I thought it was some new digital mode I haven't yet seen but it is continuous so it must be commercial. It looks to be a series of curled sections spiralling with each other. I've heard this signal before but just now with the P3 with its SVGA larger output, am able to see it. http://doctorgary.net/p3screen.jpg I'd like to be able to identify what kinds of signals make the QRM that we hear but can now see with the waterfall display. 73, Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 feature request
If you enable the menu entry WfallMkrs the markers appear on the waterfall. Alan N1AL On 02/19/2014 12:22 PM, Gary Smith wrote: I would find it helpful if the P3 markers A, B center could be made to extend below the signal line into the waterfall; it would help to center on the precise desired location to QSY to rather than guesstimate with the markers being obscured by the spectrum trace on top. Thank you, Gary KA1J __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
On Wed, 19 Feb 2014 10:15:42 -0800, Phil Hystad wrote: Anyone have ideas of the cause. The first thing to look at is your own house, of course. If you can very temporarily power your radio from a battery, even a UPS (but not one you are currently using, just to make sure that isn't the source), do that and turn the entire house power off at the breaker. When that is clean, proceed to look at the neighborhood. My favorite trick is to toss a small radio like a IC706 up on the dash with a sniffer antenna on it and drive around. One more trick that works well if you are experienced is to put the receiver on AM mode and listen to the characteristics of the noise. If you've been around awhile, you can sometimes tell a lot more about what you are really looking for. If you can, record it on AM and SSB, and have several knowledgeable people listen to it to help steer you to the source. Do it with a direct connection, not an acoustic pickup, and don't overdo your levels. A good clean recording can help your detective work. I believe plasma TVs can sound terrible. I can't say for sure, but I think I have heard one in my neighborhood. Nearest neighbors are over a quarter of a mile away. When the noise in question came up, I went to AM and it sounded like high frequency arcing all over the bands. Luckily, it hasn't been a problem lately. Good luck. I've been fighting one noise for over 20 years here. We can't seem to isolate the source. Gary __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
From your message this sounds like a new one you've not heard before. If so, let's hope it's temporary so you won't have to locate it. If new, unlikely your house or some large facility. If new and persistent, could be a neighbor has a new TV or appliance -- or the hospital with some new equipment adding to medical expenses. Temporary could be a contractor doing some work locally and (I hope) departing soon! 73, Phil w7ox On 2/19/14, 10:15 AM, Phil Hystad wrote: Anyone have ideas of the cause. You noise experts (Jim?) should have ideas. I was thinking maybe an arc welding machine but that is just a wild guess. It sure seems to be something that can be switched on and off. It is not periodic in that the on/off switching is at varying intervals. The longest on period is about one minute, the shortest on period about 2 seconds. And, it has been quiet for the last 10 minutes or so. Thanks for your help. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
Me too, as high as possible. Gets rid of a massive amount of clicks and transmitted phase noise! Sorry, couldn't resist. On 2/19/2014 12:43 PM, mcduf...@ag0n.net wrote: My favorite trick is to toss a small radio like a IC706 up -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
Just be careful it doesn't land on your head: The 706 is not what I would call a small radio. Better to use a KX1 (had to get an Elecraft rig into this to make it On Topic) :-) 73, Phil w7ox On 2/19/14, 1:25 PM, Vic Rosenthal K2VCO wrote: Me too, as high as possible. Gets rid of a massive amount of clicks and transmitted phase noise! Sorry, couldn't resist. On 2/19/2014 12:43 PM, mcduf...@ag0n.net wrote: My favorite trick is to toss a small radio like a IC706 up __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
It is hard to describe this noise because it lacks any features at all. Think of atmospherics, like background noise that usually sits around S0 to S1 on the S-meter, more on 80 meters in the evening. That sort of thing. Now, make that noise a solid (no changes, no peaks, no features, absolutely flat across the spectrum) 30/9 at least. The waterfall display is virtually opaque with this noise. The frequency spectrum display is just a band of noise across the whole top part of the P3 display -- just a little space on top where the labels are written. Then, when I switched from band to band using the KPA500 band switching buttons -- exactly the same thing. But, if it did change, it was slightly worse down around 160 meter band but not enough to say for sure that it was really worse. Like I said, this would turn off and on a varying intervals just as if someone were turning on some instrument or tool to do things. The entire period of this RF noise and activity was about 10 minutes and it has now shown itself again. It is like someone hauled out their noise machine at 9:45 AM, starting doing things, and then at 9:55 AM or there abouts, he was done. phil On Feb 19, 2014, at 12:43 PM, mcduf...@ag0n.net wrote: On Wed, 19 Feb 2014 10:15:42 -0800, Phil Hystad wrote: Anyone have ideas of the cause. The first thing to look at is your own house, of course. If you can very temporarily power your radio from a battery, even a UPS (but not one you are currently using, just to make sure that isn't the source), do that and turn the entire house power off at the breaker. When that is clean, proceed to look at the neighborhood. My favorite trick is to toss a small radio like a IC706 up on the dash with a sniffer antenna on it and drive around. One more trick that works well if you are experienced is to put the receiver on AM mode and listen to the characteristics of the noise. If you've been around awhile, you can sometimes tell a lot more about what you are really looking for. If you can, record it on AM and SSB, and have several knowledgeable people listen to it to help steer you to the source. Do it with a direct connection, not an acoustic pickup, and don't overdo your levels. A good clean recording can help your detective work. I believe plasma TVs can sound terrible. I can't say for sure, but I think I have heard one in my neighborhood. Nearest neighbors are over a quarter of a mile away. When the noise in question came up, I went to AM and it sounded like high frequency arcing all over the bands. Luckily, it hasn't been a problem lately. Good luck. I've been fighting one noise for over 20 years here. We can't seem to isolate the source. Gary __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
Based on my past experience - I would be thinking an arc welder (or wire or some such similar). If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). As a third guess - and a worst case scenario - a serious problem in your home electrical system (or a nearby neighbor). You do need to eliminate the latter ASAP. Do you notice any changes in line voltage when you experience this noise? Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
On 2/19/2014 2:23 PM, Bill W2BLC wrote: If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). When we suspected a power line leak, the noise was usually continuous, not intermittent.To verify which pole it came from, we used a 8-pound sledge to whack the pole, and if the noise changed, that was the right spot. Then we would notify the electric utility, having done their work for them. That tool, BTW, had a label on it: For Friendly Entries and Voluntary Statements :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
How do you recommend he go about eliminating the latter, which appears to be a nearby neighbor? ;-) 73, Phil w7ox -- K2#380, K1#18, K3/P3 shipping this week :-) On 2/19/14, 2:23 PM, Bill W2BLC wrote: Based on my past experience - I would be thinking an arc welder (or wire or some such similar). If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). As a third guess - and a worst case scenario - a serious problem in your home electrical system (or a nearby neighbor). You do need to eliminate the latter ASAP. Do you notice any changes in line voltage when you experience this noise? Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
All of our electricity comes out of the ground. Everything is underground here except for a few poles a number of blocks away. I have heard that kind of noise before from insulators (dirt, carbon, etc.) and this is definitely not that. Besides, that would just not have this exact on off switching behavior as if some tool were being used. phil On Feb 19, 2014, at 2:23 PM, Bill W2BLC w2...@nycap.rr.com wrote: Based on my past experience - I would be thinking an arc welder (or wire or some such similar). If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). As a third guess - and a worst case scenario - a serious problem in your home electrical system (or a nearby neighbor). You do need to eliminate the latter ASAP. Do you notice any changes in line voltage when you experience this noise? Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
I'm beginning to like that arc welder theory. 73 de Ray K2ULR On Feb 19, 2014, at 5:48 PM, Phil Hystad wrote: All of our electricity comes out of the ground. Everything is underground here except for a few poles a number of blocks away. I have heard that kind of noise before from insulators (dirt, carbon, etc.) and this is definitely not that. Besides, that would just not have this exact on off switching behavior as if some tool were being used. phil __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
I can't tell you what it is, but I can describe a few things for you: Neighbor has a plasma TV. The noise is very broad and at low P3 spans looks just solid as you describe. With a 200 KHz span, you can clearly see the changing video, it's very apparent. Plasma TV's radiate off the screen, his is about 300 feet from my tower, and is very strong but nowhere near 30 over S9. So, if at very wide spans on the P3 it is still constant, it is likely *not* a plasma TV. Since it seems to be constant from the BC band to 10m, and is very strong, either the source is very close or the total source energy must be high ... very high. If it's not close, it suggests something industrial or associated with a big power line. I had one instance of very broad, very strong noise similar to your description. Same neighbor has a military-grade night vision set-up and we located the source on a power line. Fortunately for me, our power company has been fined big bucks for starting fires, it was on a 112KV line and involved a tree, so they didn't play around, they just fixed it. My current noise source is a sodium vapor lamp lighting the interstate off ramp about a mile from here. The lamp is dying, it goes through the start sequence, appears to be firing up and then dies. It will repeat in a couple of minutes. The street lamp belongs to CalTrans, I can't get them to fix it. Then again, I really have no illusions about getting the State of California to fix anything. Unfortunately, tracking down noise with a portable radio [I use my KX1] requires that the noise be present for significant periods. Good luck, if you find it, I'd like to know the source. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 2/19/2014 2:05 PM, Phil Hystad wrote: It is hard to describe this noise because it lacks any features at all. Think of atmospherics, like background noise that usually sits around S0 to S1 on the S-meter, more on 80 meters in the evening. That sort of thing. Now, make that noise a solid (no changes, no peaks, no features, absolutely flat across the spectrum) 30/9 at least. The waterfall display is virtually opaque with this noise. The frequency spectrum display is just a band of noise across the whole top part of the P3 display -- just a little space on top where the labels are written. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
In my case, I walked next door and explained that his Plasma TV was interfering with my radio reception. I then asked him to come to my shack to see what the problem was. I showed him the signal from the PTV on my monitor which is connected to the P3 and asked if we could go to his home and turn the PTV off, which we did. Upon returning to my shack I showed him that the signal was gone. After explaining what was hapening I handed him the ARRL RFI book and showed him the part where it said that removing interference from appliances was the duty of the owner and told him about how nasty PTV's are and suggested he take the book home and read it. I then asked him if he was experiencing interference from my radio transmitter, to which he replied no. Problem solved. Amateure Radio Operator N5GE On Wed, 19 Feb 2014 14:39:54 -0800, you wrote: How do you recommend he go about eliminating the latter, which appears to be a nearby neighbor? ;-) 73, Phil w7ox -- K2#380, K1#18, K3/P3 shipping this week :-) On 2/19/14, 2:23 PM, Bill W2BLC wrote: Based on my past experience - I would be thinking an arc welder (or wire or some such similar). If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). As a third guess - and a worst case scenario - a serious problem in your home electrical system (or a nearby neighbor). You do need to eliminate the latter ASAP. Do you notice any changes in line voltage when you experience this noise? Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
I had local power line noise so Send a letter / form you can download from the ARRL to both CalTran and the FCC local office you will get results,, send to the in charge office of caltran spend a buck and use USPS ceritfied letter with a return rcpt it works Bob K3DJC My current noise source is a sodium vapor lamp lighting the interstate off ramp about a mile from here. The lamp is dying, it goes through the start sequence, appears to be firing up and then dies. It will repeat in a couple of minutes. The street lamp belongs to CalTrans, I can't get them to fix it. Then again, I really have no illusions about getting the State of California to fix anything. Unfortunately, tracking down noise with a portable radio [I use my KX1] requires that the noise be present for significant periods. Good luck, if you find it, I'd like to know the source. 73, Fred K6DGW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
So how did he eliminate the noise from the PTV? Phil w7ox On 2/19/14, 3:57 PM, Amateur Radio Operator N5GE wrote: In my case, I walked next door and explained that his Plasma TV was interfering with my radio reception. I then asked him to come to my shack to see what the problem was. I showed him the signal from the PTV on my monitor which is connected to the P3 and asked if we could go to his home and turn the PTV off, which we did. Upon returning to my shack I showed him that the signal was gone. After explaining what was hapening I handed him the ARRL RFI book and showed him the part where it said that removing interference from appliances was the duty of the owner and told him about how nasty PTV's are and suggested he take the book home and read it. I then asked him if he was experiencing interference from my radio transmitter, to which he replied no. Problem solved. Amateure Radio Operator N5GE On Wed, 19 Feb 2014 14:39:54 -0800, you wrote: How do you recommend he go about eliminating the latter, which appears to be a nearby neighbor? ;-) 73, Phil w7ox -- K2#380, K1#18, K3/P3 shipping this week :-) On 2/19/14, 2:23 PM, Bill W2BLC wrote: Based on my past experience - I would be thinking an arc welder (or wire or some such similar). If not that, then you might want to check for carbon trails on HV insulators along the road (usually very effected by the weather). As a third guess - and a worst case scenario - a serious problem in your home electrical system (or a nearby neighbor). You do need to eliminate the latter ASAP. Do you notice any changes in line voltage when you experience this noise? Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
Maybe he took it back to the store where he purchased it and got a refund. That would be the best outcome. 73 de Ray K2ULR On Feb 19, 2014, at 7:22 PM, Phil Wheeler wrote: So how did he eliminate the noise from the PTV? Phil w7ox __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - need a desktop keypad
Hi Bill and everyone else, Following up on this email, I got the prototype boards and and assembled one and it's working like a champ. Here's a demo video of what I'm calling PigPad (for now). http://youtu.be/lhVeHNsSzyI 73, Nick N3WG On Sun, Feb 2, 2014 at 2:12 PM, Nick Garner nwgar...@gmail.com wrote: Hi Bill, Pignology is making one. It operates the same way PigKnob does in that it can proxy serial data from a computer to the radio or operate standalone. I'm just waiting for the prototype boards to come back to test before making a batch. 73, Nick N3WG On Sun, Feb 2, 2014 at 2:04 PM, Bill W2BLC w2...@nycap.rr.com wrote: In the past I had several rigs with desktop keypads used for direct frequency entry - very handy and easy to use. Now, I would like to see a direct frequency entry keypad for the K3 that does NOT require a computer. Using the serial port of the K3, this should be relatively easy to accomplish. This would allow me to use one less computer program for the K3 - specifically, HRD - which I only use for frequency control by use of favorites. Thanks, Bill W2BLC K-Line (???) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] - Digital Modes Interface - Working Split
On 2/19/2014 12:00 PM, elecraft-requ...@mailman.qth.net wrote: When working split, is there any reason why I have to be able to decode both the DX (or split station [i.e. W1AW/x]) and the calling station? There is plenty of reason to be able to decode both the dx station and the callers. It is necessary to locate the QRG of the station currently working the DX in the pileup. The K3 with a sub-receiver makes it easy. I use N1MM set up with MMTTY under the C/ and another MMTTY set up under /Program Files. Each iteration of MMTTY can be set to it's own audio channel, i.e., left or right, under optionsset upmisc. Also, if you have a decent audio card in your computer, you don't need any interface, just a couple of 3.5 mm stereo patch cords plus a PPT connection (serial cable or USB adapter-Elecraft's works great) for full functioning two frequency RTTY. You can also work one digital format while monitoring another, for example working JT65/9 while monitoring RTTY activity. 73 Dave, K2YG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
I suggest you contact your electric utility. Most utiltiies have a power quality department, and in general the staff are *very* well equipped and trained to locate RF noise if it's on their system. Some utilities call this their Amateur Radio division or department. Years ago, I had symptoms similar to yours except for the timing. I had Edison's power quality people out, and they found the problem: An irrigation pump transformer with an open secondary, arcing. Started at 5 PM every day, which is when the timed contactor made the path for the arc. Even the K3's NB couldn't keep up with this interference, but it helped quite a bit. The power quality tech permanently removed the connection to the faulty equipment and the problem has not returned. Just an idea. Most of these problems are utility system based, but not all of them. 73, matt W6NIA On Wed, 19 Feb 2014 14:05:17 -0800, you wrote: It is hard to describe this noise because it lacks any features at all. Think of atmospherics, like background noise that usually sits around S0 to S1 on the S-meter, more on 80 meters in the evening. That sort of thing. Now, make that noise a solid (no changes, no peaks, no features, absolutely flat across the spectrum) 30/9 at least. The waterfall display is virtually opaque with this noise. The frequency spectrum display is just a band of noise across the whole top part of the P3 display -- just a little space on top where the labels are written. Then, when I switched from band to band using the KPA500 band switching buttons -- exactly the same thing. But, if it did change, it was slightly worse down around 160 meter band but not enough to say for sure that it was really worse. Like I said, this would turn off and on a varying intervals just as if someone were turning on some instrument or tool to do things. The entire period of this RF noise and activity was about 10 minutes and it has now shown itself again. It is like someone hauled out their noise machine at 9:45 AM, starting doing things, and then at 9:55 AM or there abouts, he was done. phil On Feb 19, 2014, at 12:43 PM, mcduf...@ag0n.net wrote: On Wed, 19 Feb 2014 10:15:42 -0800, Phil Hystad wrote: Anyone have ideas of the cause. The first thing to look at is your own house, of course. If you can very temporarily power your radio from a battery, even a UPS (but not one you are currently using, just to make sure that isn't the source), do that and turn the entire house power off at the breaker. When that is clean, proceed to look at the neighborhood. My favorite trick is to toss a small radio like a IC706 up on the dash with a sniffer antenna on it and drive around. One more trick that works well if you are experienced is to put the receiver on AM mode and listen to the characteristics of the noise. If you've been around awhile, you can sometimes tell a lot more about what you are really looking for. If you can, record it on AM and SSB, and have several knowledgeable people listen to it to help steer you to the source. Do it with a direct connection, not an acoustic pickup, and don't overdo your levels. A good clean recording can help your detective work. I believe plasma TVs can sound terrible. I can't say for sure, but I think I have heard one in my neighborhood. Nearest neighbors are over a quarter of a mile away. When the noise in question came up, I went to AM and it sounded like high frequency arcing all over the bands. Luckily, it hasn't been a problem lately. Good luck. I've been fighting one noise for over 20 years here. We can't seem to isolate the source. Gary __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Matt Zilmer, W6NIA -- Give me six hours to chop down a tree and I will spend the first four sharpening the axe. -A. Lincoln __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
My experience in Virginia and in New York was excellent with the power companies. Their quality control section had a couple of hams as team members - meaning we all spoke the same language. It might pay to ask if any team members are hams. Utility companies are loath to electricity loss, generally meaning they are helpful with problems they can correct - they cannot correct all problems. Bill W2BLC K-Line __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 digital mode questions
I'm trying to get my K2 (SN 5711) working on digital modes, initially just WSPR. I have the fixed audio output wired to pin 5 of the Mic header, going to a Signalink USB which is working fine. Audio in/out, keying, all just fine. If I transmit on WSPR my signal is being heard on 80m whether I'm in RTTY or RTTY REV. That in itself seems odd. I'm not able to decode any signals even though I can hear them. I'm having a hard time wrapping my brain around RTTY, RTTY REV, and when to use which mode. Also have questions about setting up the filters using Spectrogram. I've got the manual and I've searched the web for answers which probably just added to the confusion. First issue: RTTY REV as it applies to USB/LSB On 80m, mode RTTY, am I transmitting on LSB or USB? If RTTY is LSB, when I switch to REV am I then transmitting on USB? Is that true on all bands? I read about sidebands switching above 17m on the K2. What exactly does that mean, and what effect does that have on which sideband I'm transmitting on? When would I use RTTY vs RTTY REV? If digital modes normally use USB, shouldn't I always be set to RTTY REV? Second issue: Setting up filters I read Don's advice regarding setting up filters for JT65 but it wasn't clear to me about BF2, BF3, BF4. Don said to center the filter at 1000 Hz, and that the high value should be used for RTTY REV and the low value should be used for RTTY. Say I have a filter setting of 700 Hz. In Spectrogram I see a 700 Hz wide noise signal, do I center the peak of that signal on 1000 Hz? I know that if I adjust the BF value to center on 1000 Hz at 4912.85 that I can keep adjusting the value until my noise disappears outside the filter and then will reappear and I can center it again on a value of 4914.74. Should this high value should be used when I'm setting the filter for RTTY or RTTY REV? Third issue: BF4 running out of range As I'm trying to adjust the center of the signal at 1000 Hz the filter seems to run out of tuning range right before I get it centered, and the value of the BF jumps from it's low value to it's high value. I know that a lot of this is pretty basic but I'm just trying to get my thoughts on this straight. It seemed to be a lot easier getting my K3 up on WSPR but I think getting this K2/10 is just the thing for weak signal digital work. Thanks for any and all advice. 73, Dennis NJ6G __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Left field P3 addition?
It occurred to me that the P3 might be made into a decent 200KHz wide RF spectrum analyzer (note analyzer, not display) with the addition of N trace averaging (n, infinite). I use my K3 as test gear as well as for operating. With an elementary sweep generator, K3/ROCKY almost works as an RF spectrum analyzer if it only ROCKY could average sweeps. SPECTROGRAM/Sweep generator does work fine if you're interested in AF stuff. SPECTROGRAM has a user settable integration time. Compared to a noise generator, one can pick up another 20db of skirts with a clean swept signal. I've found sweeping in the range of 1-10 seconds over sizable chunks of spectrum quite practical. Integration times of 10-100 seconds could produce quite very useable display. Substitute SPECTRUM LAB for SPECTROGRAM and things really get interesting. One can dump of the Fourier Transform bin data in sub-Hz intervals if you want for plot comparisons or math manipulation. Since the P3's IF can be set to anything between 455KHz to about 30 MHz, one wouldn't need the K3. Just a test jig, sweep generator and P3. Sweep generator signals are way more than adequate to drive the P3. Goofy idea? No. I don't have a P3 presently. 73 de Brian/K3KO - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3705/6607 - Release Date: 02/19/14 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 10100 RTTY
That is a 10 kw commercial stn.It's located in Germany. It sends wx other info to ships at sea. I use it as a prop. beacon on 30m. K9IL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise, RFI ?
On 2/19/2014 3:57 PM, Amateur Radio Operator N5GE wrote: I then asked him if he was experiencing interference from my radio transmitter, to which he replied no. Problem solved. Ummm ... and how? This is the conundrum [or maybe fallacy] in Part 15. Unsuspecting and un-knowledgable consumers buy a product that they expect to work. It appears to do so. The idea that they are now responsible for mitigating interference from the product they bought in good faith is beyond stupid. The real responsibility was with the manufacturer and/or seller. Unfortunately, now days all they have to do is put a little sticker on the back of the device which no consumer will see, let alone understand, and they're home free. My neighbors with the PTV are very busy, gone a lot, and while he understands what his TV does to my reception, I acknowledge his right to have that TV. It isn't on very often, a solution for me. He even asks me over the back fence if there's a big contest coming up, they have occasionally just chilled and read on their Kindles. I'm lucky, and good friends with our neighbors. We're going to keep it that way. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - need a desktop keypad
Nick: I like it! Brian KB1VBF Sent from my iPad On Feb 19, 2014, at 7:29 PM, Nick Garner nwgar...@gmail.com wrote: Hi Bill and everyone else, Following up on this email, I got the prototype boards and and assembled one and it's working like a champ. Here's a demo video of what I'm calling PigPad (for now). http://youtu.be/lhVeHNsSzyI 73, Nick N3WG On Sun, Feb 2, 2014 at 2:12 PM, Nick Garner nwgar...@gmail.com wrote: Hi Bill, Pignology is making one. It operates the same way PigKnob does in that it can proxy serial data from a computer to the radio or operate standalone. I'm just waiting for the prototype boards to come back to test before making a batch. 73, Nick N3WG On Sun, Feb 2, 2014 at 2:04 PM, Bill W2BLC w2...@nycap.rr.com wrote: In the past I had several rigs with desktop keypads used for direct frequency entry - very handy and easy to use. Now, I would like to see a direct frequency entry keypad for the K3 that does NOT require a computer. Using the serial port of the K3, this should be relatively easy to accomplish. This would allow me to use one less computer program for the K3 - specifically, HRD - which I only use for frequency control by use of favorites. Thanks, Bill W2BLC K-Line (???) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 digital mode questions
Dennis, First a clarification - if the band is below 15 meters, RTTY is LSB and RTTY REV is USB. You don't have to worry about that on bands above 15 meters because the K2 automatically makes the corrective swap, but when aligning the filters, use a band below 15 meters so as not to mix the sidebands. Secondly, since you run out of range when aligning the 400 Hz filter width at 1000 Hz, your BFO range is not correct (too high) on the low frequency side. That can usually be corrected by adding a small value capacitor (10 pF to 22 pF) between the junction of the crystals and C174 and ground - a capacitor between pins 6 and 3 of U11 is a good place to insert it. Check the BFO range against the manual range limits after adding the capacitor and adjust the capacitor value as required. Once you have the BFO range corrected, you will have to re-align *all* your filters - SSB, CW and RTTY. You can refer to the filter alignment information on my website www.w3fpr.com - see part 3 of the K2 Dial Calibration article. The RTTY FL1 settings should be OP1 width, and the BFO settings should normally be the same as used for SSB LSB and USB. That filter will be the one normally used and works well with a full waterfall display. The problem comes in when a strong signal comes into the filter passband and activates the AGC such that the K2 receiver gain is reduced. All signals in the passband will be reduced because of the AGC action. The solution to that problem is to use a narrowed bandwidth (to get the strong signal out of the passband). That is the purpose of the narrow RTTY and RTTY REV filters. To accomplish that, I normally set FL2 to 1000 Hz, FL3 to 700 Hz and FL4 to 400 Hz. Those are the widths that I use, you are free to make your own choices on your desired filter widths. For the BFO frequencies of these narrow filters, the RTTY filters will be in the vicinity of 4912.xx and the RTTY REV filters will be in the vicinity of 4914.xx. Yes, use Spectrogram to set all the filters. The settings in the manual for SSB and CW will produce a workable set of filters, but they will not likely be optimum. One note on the SSB filters, be aware of the actual width of the SSB FL2, FL3 and FL4 filters. Many K2s in the serial number range near yours have varactors that make those filters much wider than indicated by the display on the K2. Make FL2 about 200 Hz more narrow than the FL1 OP1 width, FL3 about 200 Hz more narrow than FL2 and FL4 about 200 Hz even more narrow. Observing the actual filter width with Spectrogram will produce usable filters for reducing QRM from an interfering SSB signal on the high frequency side. The low frequency slope of the SSB filters should be placed close to the 300 Hz point on the Spectrogram display although the FL4 may be placed a bit higher (between 400 and 500 Hz). That will produce a set of SSB filters that can be progressively narrowed to maintain communications in the presence of interfering strong signals slightly off frequency. Now, if you followed all of that, you know as much as I do about aligning the K2 filters. 73, Don W3FPR On 2/19/2014 10:01 PM, Dennis Moore wrote: I'm trying to get my K2 (SN 5711) working on digital modes, initially just WSPR. I have the fixed audio output wired to pin 5 of the Mic header, going to a Signalink USB which is working fine. Audio in/out, keying, all just fine. If I transmit on WSPR my signal is being heard on 80m whether I'm in RTTY or RTTY REV. That in itself seems odd. I'm not able to decode any signals even though I can hear them. I'm having a hard time wrapping my brain around RTTY, RTTY REV, and when to use which mode. Also have questions about setting up the filters using Spectrogram. I've got the manual and I've searched the web for answers which probably just added to the confusion. First issue: RTTY REV as it applies to USB/LSB On 80m, mode RTTY, am I transmitting on LSB or USB? If RTTY is LSB, when I switch to REV am I then transmitting on USB? Is that true on all bands? I read about sidebands switching above 17m on the K2. What exactly does that mean, and what effect does that have on which sideband I'm transmitting on? When would I use RTTY vs RTTY REV? If digital modes normally use USB, shouldn't I always be set to RTTY REV? Second issue: Setting up filters I read Don's advice regarding setting up filters for JT65 but it wasn't clear to me about BF2, BF3, BF4. Don said to center the filter at 1000 Hz, and that the high value should be used for RTTY REV and the low value should be used for RTTY. Say I have a filter setting of 700 Hz. In Spectrogram I see a 700 Hz wide noise signal, do I center the peak of that signal on 1000 Hz? I know that if I adjust the BF value to center on 1000 Hz at 4912.85 that I can keep adjusting the value until my noise disappears outside the filter and then will reappear and I can center it again on a value of
Re: [Elecraft] Left field P3 addition?
Brian, Not a goofy idea at all, the P3 can be used in that fashion, as can any SDR receiver that covers the frequency range that you want to investigate. 73, Don W3FPR On 2/19/2014 10:27 PM, Brian Alsop wrote: It occurred to me that the P3 might be made into a decent 200KHz wide RF spectrum analyzer (note analyzer, not display) with the addition of N trace averaging (n, infinite). I use my K3 as test gear as well as for operating. With an elementary sweep generator, K3/ROCKY almost works as an RF spectrum analyzer if it only ROCKY could average sweeps. SPECTROGRAM/Sweep generator does work fine if you're interested in AF stuff. SPECTROGRAM has a user settable integration time. Compared to a noise generator, one can pick up another 20db of skirts with a clean swept signal. I've found sweeping in the range of 1-10 seconds over sizable chunks of spectrum quite practical. Integration times of 10-100 seconds could produce quite very useable display. Substitute SPECTRUM LAB for SPECTROGRAM and things really get interesting. One can dump of the Fourier Transform bin data in sub-Hz intervals if you want for plot comparisons or math manipulation. Since the P3's IF can be set to anything between 455KHz to about 30 MHz, one wouldn't need the K3. Just a test jig, sweep generator and P3. Sweep generator signals are way more than adequate to drive the P3. Goofy idea? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] 12v outlet only puting out 11 volts
Unless the circuit has been changed since my radio, I seem to recall two diodes in series in the path to the 12V out jack. A silicon diode can drop the voltage .7 of a volt (times two). Dick, n0ce - Original Message - From: Alan Bloom n...@sonic.net To: elecraft@mailman.qth.net Sent: Monday, February 17, 2014 11:03:32 AM Subject: Re: [Elecraft] [K3] 12v outlet only puting out 11 volts The P3 should work fine with 11V. When I tested mine it worked down to about 6V or so, although that is not guaranteed. It is normal for the K3 power connector to show a voltage drop compared to the 12V input connector, although 1.5V drop seems kind of high. Could some of that drop be in the power cable? Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
