[Elecraft] Elecraft CW Net Report
Good Evening, Both bands were stronger than they were two weeks ago. Less QSB on twenty while on forty meters had less on those farther west with a fast flutter on those to the east. The sun angle seems about right for longer distance work on forty. By the end of the second net it was dark here. Topics ranged from tuning vertical antennas to humans being launched into space, Boise real estate to Midwestern snow storms. Low noise helped me dig a little deeper to work PA and VA. It has been a while. On 14050.5 kHz at 2200z: W0CZ - Ken - ND K0DTJ - Brian - CA K6XK - Roy - IA NO8V - John - MI K2HYD - Ray - VA KB3FBR - Joe - PA On 7047.5 kHz at 0045z: W0CZ - Ken - ND W6JHB - Jim - CA K4WJ - John - FL K6PJV - Dale - CA K0DTJ - Brian - CA W8OV - Dave - TX I am working on some code to visualize antenna radiation patterns as animated 3D surfaces. This is an extension of work I did for my grad school thesis. There are many variables I could modify as user controlled parameters; I need to pick those which effect the system the most or are the most important to amateur use, while setting the others as fixed. These patterns are created from equations straight out of a text book so you can track how each variable is introduced into the theory. I need to tune my dynamic-circular queue for steady state performance. The display loop needs to get fed enough frames, quickly enough, or have a governor added to it. Until next week have fun and get on the air more, the bands are healthy, Kevin. KD5ONS - del dot E = rho / e0 del dot B = 0 del cross E = -dB/dt del cross B = mu0 ( J + e0 dE/dt ) __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] 40 meter SSB net 11-15
Thanks to all checking in and helping with relays. Record breaking number of check ins today. Difficult recording all the data as fast as it all occurred. Please forgive any missed check ins or incorrect info. WM6P STEVE GA K3S K8NU CARL OH K3S WB8PKK KENMA IC7600 K1NW BRIANRIK3 N0MPM MIKE IAK3S WB9JNZ ERIC IL K3 KA9EJLJEFF MO TS-850S K6VWESTAN MIK3 KB9ABO PAUL INK3S KG0KPJIM MO K3 NC0JWJIM CO KX3 WY3T TIM FL K3S WW4JFJOHN TN K3S W4DMLDOUG TN K3 WB4RDG RON KY TENTEC K4HYJ HANK GA K3S KB5PMP DALE MSTS450D KO4GQQ DAVID TN IC7300 K0ACP ART MI K3S KG5VAT STEVENLA TS-440 KC3PMX GREGPA IC718 N7YW KEN AZ K3 K7TPH MICKEY ID KX3 K7BRR BILL AZ K3S __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Rx QTC issue
I am able to send QTC fine. Both times receiving QTCs in WAE I can click on the header and it populates but no QTCs populate the individual QTC blocks. When clicking on a QTC it tells mwe format is incorrect. I have the original QSOs for each QTC block so I can find where to add them for the appropriate calls. I did a screen copy of the info so I have the QTC info. Can this info be entered manually into the QTC window and have it enter the log, which doesn't seem to work unless it's me. Any ideas to get these Rcv QTCs into the log? Thanks, Jim/W3FA __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA 1500 efficiency
This is normal from theory. Input power increase as I*U. Output power increases as I*I*R. So at half input power one quarter output power. At 1/4 input power 1/16 output power. Two ways around, none implemented in KPA1500. Change transformer windings like in KX3, which is harder to do at high power. Lower the voltage as in Expert amps. In old times, my 20A power supply to a 100W rig broke. I only had 5 A supply. Was good for 5W. But after adjusting with tuner for a max power, the output was 25 W. The tuner acted like a transformer. 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4/K4D Audio Codec question...
Tom wrote: > Does the K4, especially the K4D, have two audio codecs, one for each > receiver, available via the USB connector? > > This would be highly desirable with the digital mode, being able to monitor > the MSK 144 and FT8 frequencies on 6 at the same time. Yes. This can be done even with a basic K4, since it has independent left and right receive channels pertaining to VFO A (main) and B (sub). A K4D would give you the ability to use different antennas for the two receivers. It also optimizes performance when the two receivers are on different bands since it includes a second set of band-pass filters, preamps, and attenuators. 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 Message delivered to arch...@mail-archive.com
[Elecraft] Solution to Low Volume on Right Side using Sub receive on KX3
The SUB receive on the KX3 is great for working pile-ups. The issue I have is when the DX station is weak, turning up the audio volume to hear the DX makes the pile-up so loud I can't hear the DX. Anyone know of a simple solution to making the pile-up audio lower and DX louder other than an audio mixer? Bob AF9W __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft Support Reply 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 Message delivered to arch...@mail-archive.com
[Elecraft] KPA1500 ATU band/bin operation
Hi Gary, I have two large vertical loops for 160 - 40 M each is directional NE/SW & NW/SE. As long as each antenna presents a fairly low SWR to the tuner, you will be ok. If, say, both antennas are at or below 3:1 SWR when tuner is bypassed, at a particular frequency, you should be ok switching from one to the other while un-keyed & then keying up full power at the new ant setting. I train the tuner for each antenna separately after erasing any settings for that band. Then I only have two choices for the tuner to make. Even then, you may get a fault response if you tune to a freq where one antenna is way above 3:1 & the other is not and you key full power - I usually apply 'tune' power after a change of antennas & it seems to be ok. The tuner will match almost anything below 10:1 or so but you can't run full power with the higher SWR's. 160M is real picky above 4:1, 80-6M will still allow about 750W at 10:1. Take a look at the user manual on the Elecraft site for better info. It is the best amp I have used but you have to get familiar with it's limitations. Good luck - 73 Gill W4RYW __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3, WSJT-X and Mint 20
My K3 is not my main rig I use for FT8/FT4 but I did have it set up and working fine with WSJT-X with Linux Mint 19.3. I use another rig that is pretty mediocre on CW but not bad on SSB and digital for most of my FT8/FT4 work. I recently did a fresh install of Mint 20 64 bit (attempts at a straight upgrade failed) and have not been able to get WSJT-X working with the K3. The other rig, yes but not the K3. The setup is an old Dell Optiplex 380 desktop, CAT through an RS232 cable and the two cables from the computer to the K3 line in and out jacks. I use PulseAudio. CAT works fine an I am able to receive signals but not well and little shows up on the waterfall. The rig will go into transmit but no power out. I am using the same settings in Pulse that I used before. Has anyone else had this issue with Liunx based on 20.04? 73, Bill NZ0T __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Flashover in linear amp fed w. K3
This happened to me last week, although it may not have been a flashover. Have you power cycled the K3? Mine would not output any power after the KPA500 faulted, even when I turned the KPA500 off. No barefoot power, zilch. I power cycled the K3 and all restored itself. 73, Alan. G4GNX -- Original Message -- From: "Pentti A J Pajunen" To: elecraft@mailman.qth.net Sent: 15/11/2020 19:35:28 Subject: [Elecraft] Flashover in linear amp fed w. K3 Hello Elecrafters! Happened one day when tested Drake L4, that there was a loud bang in the linear causing electrical shutdown in both, the linear and the K3. Now seems that the K3 refuses of any output, RX normal. Hopefully the cause is only corrupted firmware, still having a fear for damaged transmiiting cirquits. No PA output no output when the PA is deactivated. Bricked? -- 73 & CU Penna, OH2G, OH2CG __ 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 Message delivered to g4...@g4gnx.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 Message delivered to arch...@mail-archive.com
[Elecraft] Flashover in linear amp fed w. K3
Hello Elecrafters! Happened one day when tested Drake L4, that there was a loud bang in the linear causing electrical shutdown in both, the linear and the K3. Now seems that the K3 refuses of any output, RX normal. Hopefully the cause is only corrupted firmware, still having a fear for damaged transmiiting cirquits. No PA output no output when the PA is deactivated. Bricked? -- 73 & CU Penna, OH2G, OH2CG __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] 80 Meter Elecraft Net moving, plus the rest of the nets
The Elecraft Nets -- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 19:000z 20 Meter CW Elecraft Net Monday 00:45n 14.050 kHz (Sunday night for the US) 40 Meter CW Elecraft Net Monday 00:00z 17.046.5 kHz (Sunday night for the US) ~~ *80 Meter SSB Elecraft Net Sunday Night 3.720+/- at 01:00z (Sunday night for the US)* Please take note of the 80 meter frequency change We moved, so we could hear everyone Paul KB9AVO __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 ATU band/bin operation
Gary: If the Xcvr provides freq info (a K3 menu enable is required), the KPA1500 selects new ATU settings as the K3 Tx VFO changes (a bit after VFO motion ceases), without waiting for a transmission. The KPA1500 chooses the most recently stored ATU setting in the new “bin”. On transmission, if SWR exceeds a threshold, and a KPA1500 config choice for HiSWR retune is enabled, other ATU settings in the bin are evaluated. This requires a bit of RF. Once the best ATU setting is found, the bin is reordered and stored, so when you return to this frequency, the most recent setting is tried first. If you mostly use your three antennas on the obvious bands, there should be one or two ATU settings per bin. If you train your 80 meter dipole on 20 and your 40 meter beam on 15, there may be more ATU settings per bin. I’d consider putting the HyTower on the second ant port so that it can be used on all bands without having to search thru settings for the “other” antenna. If there are any ATU settings in the bin, only those settings will be tried, so tune in every bin if you have multiple antennas. It takes on the the order of 20 milliseconds of stable RF per ATU setting, which has to do with relay settle delay and reevaluating SWR. A CW dit at 30 WPM is 40 mSec. ATU relays are changed after bypassing the PA momentarily, and that also takes a few mSec. 73 de Dick, K6KR > On Nov 15, 2020, at 08:51, Gary Slagel via Elecraft > wrote: > > I'm thinking of replacing an old SPE amp with a KPA1500. > I have 4 antennas: 10/15/20 yagi, 40M yagi, 80/160 dipole and an all band > hytower vertical so will probably have 3 switched antennas to one antenna > port on the KPA1500 and 1 antenna to the 2nd antenna port. > After 'training' on all freq/antenna combinations I'll tend to have 2 or 3 > settings for each freq/bin. When I tune from one frequency to the next and > one bin to the next bin, the tuner will have to select one of the 2 or 3 > settings for the bin. Does it wait until I transmit (a dit with the key) to > select the new setting or will it track with the k3 and make changes as I > move from freq to freq. Will I notice the tuner trying each setting (lights > flashing, relay noise) until it finds the correct setting? > My older SPE has a similar freq/bin concept but has 4 antenna ports and 1 set > of band/bins per antenna port. This allows it to know exactly setting to > use which is nice. But... maybe not as durable as the KPA1500. > Thanks for any advice. > Gary SlagelKT0A > > __ > 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 > Message delivered to d...@elecraft.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 Message delivered to arch...@mail-archive.com
[Elecraft] KPA1500 ATU band/bin operation
I'm thinking of replacing an old SPE amp with a KPA1500. I have 4 antennas: 10/15/20 yagi, 40M yagi, 80/160 dipole and an all band hytower vertical so will probably have 3 switched antennas to one antenna port on the KPA1500 and 1 antenna to the 2nd antenna port. After 'training' on all freq/antenna combinations I'll tend to have 2 or 3 settings for each freq/bin. When I tune from one frequency to the next and one bin to the next bin, the tuner will have to select one of the 2 or 3 settings for the bin. Does it wait until I transmit (a dit with the key) to select the new setting or will it track with the k3 and make changes as I move from freq to freq. Will I notice the tuner trying each setting (lights flashing, relay noise) until it finds the correct setting? My older SPE has a similar freq/bin concept but has 4 antenna ports and 1 set of band/bins per antenna port. This allows it to know exactly setting to use which is nice. But... maybe not as durable as the KPA1500. Thanks for any advice. Gary SlagelKT0A __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] k2 cw filter alignment friture app
Carlos, You may have a bad copy of Spectrogram - you can download a good copy from my website www.w3fpr.com. Both version 5.17 and version 16 are there - scroll near the bottom of the home page to see the links. I have been running version 16 on Windows 10 for some time. 73, Don W3FPR On 11/15/2020 3:39 AM, carlos popelier wrote: hi, is it possible to use friture instead of spectrogram , spectrogram seems not to work on windows10 i have signals on friture spectrogram, so soundcard is working carlos on6cn __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3 Calibration Question
After several years use I decided to check the calibration of my KX3, following the procedures in the manual, using a function generator controlled by a GPS disciplined reference signal, adjusting REF CAL to zero beat. Then I checked WWV 10MHz I was about 230 Hz off frequency based on PX3 display. Looking at the 10MHz signal from the function generator, I was off by the same amount based on PX3. I adjusted the REF CAL setting to get both the 10MHz WWV and Function Gen 10MHz centered on the PX3 (same REF CAL setting). I checked with my old HP8640B at 10MHz, it was within 20Hz. With WWV I could see both the center and side bands, I was using the center as my reference. The manual states that following it's procedures accuracy should be within +/- 1 ppm. Any thoughts on what is going on? Thanks, Ron __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] k2 cw filter alignment friture app
In Windows 10 settings make sure “Allow apps to use the microphone” is turned ON. I think it’s in the security section. 73, Brian, K0DTJ > On Nov 15, 2020, at 00:41, carlos popelier wrote: > > hi, > is it possible to use friture instead of spectrogram , > spectrogram seems not to work on windows10 > i have signals on friture spectrogram, so soundcard is working > carlos on6cn > > -- > mvg carlos popelier > regards carlos popelier > __ > 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 > Message delivered to huntin...@coastside.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] improper TX data mode
Dick, Check your data sub-mode (DATA MD) on *each band*. Make sure 80, 40, 30 and 12 m are not set to AFSK_A instead of DATA_A. The data submode is band specific and may have been set to AFSK_A by your software if you happened to have operated RTTY. 73, ... Joe, W4TV On 2020-11-13 5:51 PM, Dick Frey wrote: I cannot operate FT8 on 80 60 40 30 or 12m. It works fine on the other bands. Data mode (usb) is selected on all. However, on the P3, the filter window is displayed improperly on the bands that don't work -- it is centered on the display and is actually LSB because I can ALT the mode and copy FT8 but not send. Properly, it is on the high side of center on the bands that do work. Any ideas on what I have fat-fingered? __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Friture spectrum analyzer for K2 filter alignment
I have no experience with Friture but it looks like it would work. FWIW, Spectrogram 16.0.4.0 runs fine on my up-to-date Win10 computer. Lou W7HV __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] k2 cw filter alignment friture app
Carlos, I have just checked since the latest Win10 feature update. Spectrogram 16 is working OK on my Win10/64 Pro PC. In fact I'm watching 12m FT8 coming alive on it. Setup is K3 with USB interface upgrade. Regards, Mike VP8NO On 15/11/2020 05:39, carlos popelier wrote: hi, is it possible to use friture instead of spectrogram , spectrogram seems not to work on windows10 i have signals on friture spectrogram, so soundcard is working carlos on6cn __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s/KPA500 communication issue?
Use the kpa utility and check the fault codes. In my case (prefix du3) it has always been due to input power variance. And as you describe, the following day - everything has been fine. Tim Du3tw Sent from my iPhone > On 14/11/2020, at 23:12, Alan - G4GNX wrote: > > Mike, I'm not sure if this is relevant or not but I also have a tale of woe, > similar to yours. > > My main antenna is also an OSCFD and not really cut for 80 metres, so the SWR > is always a bit higher than I prefer, possibly approaching 2:1. > > My setup is a K3S + P3, KPA500 and KAT500. > > A couple nights ago I was attempting to call a special event station in a > pileup on 80 metres and decided to turn the KPA500 on. I was only running > with around 11W from the K3S, giving me about 200W output from the KPA500. > After 'shouting' a couple of times, the SWR was just below 2:1 but the KPA500 > didn't like it and suddenly faulted. When I tried to TX barefoot from the > K3S, there was no output - nothing showing on the K3S display. I checked the > power setting and it was 100W. I had previously power cycled the KPA500 and > it was in Standby. The only way I could get the K3S to TX was to power cycle > it, then all was back to normal. > > I ran the KPA500 in Operate again for a few moments to check that it was OK > and all seemed normal, but I didn't pursue it on 80m because I didn't want to > push my luck. :-) > > A couple days later on a regular 40 metre net, I ran the KPA500 again for > over an hour (on SSB) and have had no issues. > > I've not checked the manuals as to whether the original action is a safety > feature or a bug. > > 73, > > Alan. G4GNX > > > -- Original Message -- > From: "Mike Dodd" > To: elecraft@mailman.qth.net > Sent: 14/11/2020 01:59:57 > Subject: [Elecraft] K3s/KPA500 communication issue? > >> Occasionally it seems my K3s doesn't know the STBY/OPER state of my KPA500. >> I also have a KAT500 for my Carolina Windom. >> >> Here's the first scenario: K3 in CW mode. I put the KPA in STBY and hit TUNE >> on the KAT and on the K3. When the tune is complete, I send one dash and >> note the 100W LED on the KPA. So far, so good. >> >> Next I put the KPA in OPER mode. The K3 power level is already set to about >> 10W, sufficient for about 250W on the KPA. Now I send a dash. >> >> Occasionally the KPA power indicator shoots up to 700W, and the KPA faults. >> When I clear the fault, the KPA is in STBY, and if I send a dash, I see the >> 100W LED come on. if I then put the KPA in OPER and send a dash, USUALLY I >> get the expected 250W output, but occasionally it shoots up to 700W and >> faults again. >> >> Now for the second scenario. With the KPA in OPER and outputting 250W, I >> switch it to STBY, then send a dash. I expect to see the 100W LED, but it >> does not light. If I look at the K3 RF bar graph, it shows 10W, not 100W. If >> I slightly turn the K3 PWR knob, it shows about 10W, not 100W. >> >> Until recently, the K3 ALWAYS switched back to my normal setting of 100W >> when the KPA is in STBY. The fact that it occasionally remains at 10W seems >> to indicate that it doesn't know the KPA is in STBY. >> >> Furthermore, the first scenario, where the KPA output shoots to 700W and it >> faults, seems to indicate that the K3 is sending it 100 watts -- another >> indication that the K3 doesn't know the KPA is in OPER, and thus doesn't >> reduce its output power to 10W. >> >> Is there any way to diagnose this problem, and more importantly, to fix it? >> >> Thanks for any and all guidance. >> >> -- 73, Mike N4CF >> Louisa County, VA USA >> Elecraft K3s / P3 / KPA500 / KAT500 >> Carolina Windom up 45' >> http://n4cf.mdodd.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 >> Message delivered to g4...@g4gnx.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 > Message delivered to a4...@sy-edm.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 Message delivered to arch...@mail-archive.com
[Elecraft] k2 cw filter alignment friture app
hi, is it possible to use friture instead of spectrogram , spectrogram seems not to work on windows10 i have signals on friture spectrogram, so soundcard is working carlos on6cn -- mvg carlos popelier regards carlos popelier __ 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 Message delivered to arch...@mail-archive.com
