Re: [Elecraft] K3 audio artifacts
Does it go away if you switch in some RF attenuation? David G3UNA - Original Message - From: Vic Rosenthal 4X6GP/K2VCO k2vco@gmail.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, November 18, 2014 12:27 PM Subject: [Elecraft] K3 audio artifacts I know I might be beating a dead horse, but my recent experience in big, noisy pileups has made this problem stand out. The t/r transitions in QSK and semi-QSK CW when there are nearby strong signals make a horrible racket -- enough to make me turn down the volume when sending, which negates the utility of QSK, of course. Although the QSK is smooth and quiet on a quiet band, this is not the case when there are strong signals around. Here in 4X the EU signals can be super-strong, and in recent FT4TA pileups, the banging and crashing around my sidetone made operating sheer torture. Yes, I am using QRQ mode (I listen to the DX on the subrx and the pileup on the main so as to make this possible) and New QSK. It doesn't matter. The problem is as bad or worse in 'simplex' operation when numerous stations are calling a DX station on the same frequency. I understand that this is caused by the limitations of the synthesizers. But I have discussed with Wayne and Lyle the possibility of changing the RX muting function, which would slow down the QSK but at least make it quiet. Fast QSK is worthless if I have to turn down the audio to protect my eardrums! This would do a huge amount to increase the operating pleasure of serious CW operators. The feature could be optional so those who like to ragchew at high speed in QRM-free spots could turn it off. -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 audio artifacts
Only if it's enough attenuation to reduce the volume significantly. Several people suggested reduced RF gain. I tried this too, including turning off AGC and riding RF gain. The loudness of the 'crashes' seems to depend on the loudness of the signal. On 19 Nov 2014 10:39, David Cutter wrote: Does it go away if you switch in some RF attenuation? David G3UNA - Original Message - From: Vic Rosenthal 4X6GP/K2VCO k2vco@gmail.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, November 18, 2014 12:27 PM Subject: [Elecraft] K3 audio artifacts I know I might be beating a dead horse, but my recent experience in big, noisy pileups has made this problem stand out. The t/r transitions in QSK and semi-QSK CW when there are nearby strong signals make a horrible racket -- enough to make me turn down the volume when sending, which negates the utility of QSK, of course. Although the QSK is smooth and quiet on a quiet band, this is not the case when there are strong signals around. Here in 4X the EU signals can be super-strong, and in recent FT4TA pileups, the banging and crashing around my sidetone made operating sheer torture. Yes, I am using QRQ mode (I listen to the DX on the subrx and the pileup on the main so as to make this possible) and New QSK. It doesn't matter. The problem is as bad or worse in 'simplex' operation when numerous stations are calling a DX station on the same frequency. I understand that this is caused by the limitations of the synthesizers. But I have discussed with Wayne and Lyle the possibility of changing the RX muting function, which would slow down the QSK but at least make it quiet. Fast QSK is worthless if I have to turn down the audio to protect my eardrums! This would do a huge amount to increase the operating pleasure of serious CW operators. The feature could be optional so those who like to ragchew at high speed in QRM-free spots could turn it off. -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ -- Vic __ 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 wish
Hello, I have a wish for the KX3. I want different loudness of the right and left channel. Month before I had a dramatic decrease of hearing in one ear. I like the K3-features as Dualwatch. This and other features (AFX) make problems if you need different loudness for the right and left channel. I think it was a great help for me and other ‚old dogs‘ to make the channel-looudnes different. vy 73 de Karl-Heinz, DK5LP / AK5LP __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
Hi Jim, We had a very similar situation a couple of years ago at our local club station which was using Yaesu kit and a MFJ ATU. We had relocated the station and used different (shorter) coax to wire it all up. We encountered various problems the main one being a high SWR. The cables were checked but nothing untoward was found. Then one member said that we shouldn't use short cables and so we found some longer cables, about 2m long, (not the originals) and everything worked fine. We never did find out the reasoning behind not using the short cable lengths. Andrew G8BYB __ 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] KPA500 Power In Digital Modes
On Nov 10, 2014, at 7:30 PM, Joe Subich, W4TV wrote: Depending on the crest factor (peak to average ratio) of the mode in use, the average power from the KPA-5000 should be kept 6 to 10 dB below the rated maximum (e.g., 60 to 150 watts) just as a 100W transceiver should be kept between 10 and 25 watts average. Since the K3 turns off the final stage when below 13 watts, does that mean running 10 watts is a bad choice since that's running the lower power stage at near maximum? From a cooling perspective alone, I have often wondered if it's better for a K3 to be run at 15w rather than 10. Ken WA8JXM __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
I had a similar problem many years ago with an L-4B amp. I wonder if adding ferrite to the coax would solve this problem? GL N2TK, Tony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Kvochick Sent: Tuesday, November 18, 2014 9:16 PM To: elecraft@mailman.qth.net Cc: k...@att.net Subject: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? I've stumbled into a strange problem. I have 4 friends with similar K3 stations to my own; K3 KPA500 KAT500. The stations are powered with similar power sources. One station sounds fine, works great. The other 4 had strange issues that manifested themselves as audio distortion when running the amplifier. After looking all over for RF and grounding issues, we swapped the coax cable from the K3 to the amplifier, with a longer cable (about 6 to 7 feet - largely because that was the only free cable we had handy). Making the cable from the K3 to the amplifier longer eliminated the issue. putting the cable back brought the problem back. Making a new short cable still left us with audio distortion. The only thing that seemed to solve the issue in all 4 cases was making the K3 to amplifier cable longer. This got me to investigate my own station. It turns out that the cable I used between the amplifier and the radio was about 6 feet long. Swapping this cable for a shorter length brought about audio distortion symptoms. Does anyone have any thoughts about this? Cheers Jim K8JK __ 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 tony@verizon.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] ESSB
Sent from my iPhone this time On Nov 17, 2014, at 11:48 AM, Al Lorona alor...@sbcglobal.net wrote: Your intuition is correct, David. The same power in a narrower bandwidth results in a higher spectral power density -- more watts per Hertz, so to speak. Not to mention that at the receiving end, the operator can narrow his bandwidth which lowers the noise floor that he hears underneath you. Al W6LX _ As bandwidth is broadened, is effective radiated power diluted? David Ahrendts, KC0XT __ 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 gerrylear...@icloud.comi find that narrowing the bandpass on an SSB signal makes it harder to understand. I don't notice any less noise.I am not speeaking in regards to QRM, but just the average noise level heard on a speaker or head phones. __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
We tried all the normal common mode tricks, but the feedline length appeared to be the most effective. Jim K8JK Sent from my iPad On Nov 19, 2014, at 7:32 AM, N2TK, Tony tony@verizon.net wrote: I had a similar problem many years ago with an L-4B amp. I wonder if adding ferrite to the coax would solve this problem? GL N2TK, Tony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Kvochick Sent: Tuesday, November 18, 2014 9:16 PM To: elecraft@mailman.qth.net Cc: k...@att.net Subject: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? I've stumbled into a strange problem. I have 4 friends with similar K3 stations to my own; K3 KPA500 KAT500. The stations are powered with similar power sources. One station sounds fine, works great. The other 4 had strange issues that manifested themselves as audio distortion when running the amplifier. After looking all over for RF and grounding issues, we swapped the coax cable from the K3 to the amplifier, with a longer cable (about 6 to 7 feet - largely because that was the only free cable we had handy). Making the cable from the K3 to the amplifier longer eliminated the issue. putting the cable back brought the problem back. Making a new short cable still left us with audio distortion. The only thing that seemed to solve the issue in all 4 cases was making the K3 to amplifier cable longer. This got me to investigate my own station. It turns out that the cable I used between the amplifier and the radio was about 6 feet long. Swapping this cable for a shorter length brought about audio distortion symptoms. Does anyone have any thoughts about this? Cheers Jim K8JK __ 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 tony@verizon.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 jameskvoch...@me.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] KX3 Voice Monitor (MON)
The voice monitor in SSB is the processed and filtered I channel of the IQ audio stream. Since I and Q baseband signals are combined in the transmit mixer and not the DSP, the resulting monitor audio is an extremely close but slightly imperfect representation of the transmitted signal. On a practical basis, they should be the same. Note that the KX3 has a great tool for adjusting Tx EQ and CMP. Record your voice using the DVR, then play it back using MON. Adjust Tx EQ and CMP and play back the sample and you will be able to hear what your signal will sound like to the other station. Doing this live with a microphone is not nearly as effective due to bone conduction of your voice to your ears. Enjoy! 73, Lyle KK7P Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual? __ 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] KX3 Voice Monitor (MON)
Thanks, Lyle. I will try it. 73s. On Nov 19, 2014, at 5:43 AM, Lyle Johnson kk7p4...@gmail.com wrote: The voice monitor in SSB is the processed and filtered I channel of the IQ audio stream. Since I and Q baseband signals are combined in the transmit mixer and not the DSP, the resulting monitor audio is an extremely close but slightly imperfect representation of the transmitted signal. On a practical basis, they should be the same. Note that the KX3 has a great tool for adjusting Tx EQ and CMP. Record your voice using the DVR, then play it back using MON. Adjust Tx EQ and CMP and play back the sample and you will be able to hear what your signal will sound like to the other station. Doing this live with a microphone is not nearly as effective due to bone conduction of your voice to your ears. Enjoy! 73, Lyle KK7P Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual? __ 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 davidahren...@me.com David Ahrendts davidahren...@me.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] KPA500 Power In Digital Modes
Since the K3 turns off the final stage when below 13 watts, does that mean running 10 watts is a bad choice since that's running the lower power stage at near maximum? As it relates to that part of the distortion caused by compression or clipping in the amplifier chain (IF- Low power amplifier - PA), running the K3 at 10 watts is probably worse than running it at 20 watts. I don't have specific data on the particular devices used in the K3 but in general IMD is minimum around 80% of maximum rated output. 73, ... Joe, W4TV On 2014-11-19 6:50 AM, Ken wrote: On Nov 10, 2014, at 7:30 PM, Joe Subich, W4TV wrote: Depending on the crest factor (peak to average ratio) of the mode in use, the average power from the KPA-5000 should be kept 6 to 10 dB below the rated maximum (e.g., 60 to 150 watts) just as a 100W transceiver should be kept between 10 and 25 watts average. Since the K3 turns off the final stage when below 13 watts, does that mean running 10 watts is a bad choice since that's running the lower power stage at near maximum? From a cooling perspective alone, I have often wondered if it's better for a K3 to be run at 15w rather than 10. Ken WA8JXM __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
Your problem isn't the length of the coax between the units. It is RF getting into the shack in the first place via your feedline. What antennas and feedlines do you have connected? What sort of common mode chokes have you applied to the antennas which are connected. 73 jim ab3cv On Wed, Nov 19, 2014 at 8:19 AM, James kvochick jameskvoch...@me.com wrote: We tried all the normal common mode tricks, but the feedline length appeared to be the most effective. Jim K8JK Sent from my iPad On Nov 19, 2014, at 7:32 AM, N2TK, Tony tony@verizon.net wrote: I had a similar problem many years ago with an L-4B amp. I wonder if adding ferrite to the coax would solve this problem? GL N2TK, Tony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Kvochick Sent: Tuesday, November 18, 2014 9:16 PM To: elecraft@mailman.qth.net Cc: k...@att.net Subject: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? I've stumbled into a strange problem. I have 4 friends with similar K3 stations to my own; K3 KPA500 KAT500. The stations are powered with similar power sources. One station sounds fine, works great. The other 4 had strange issues that manifested themselves as audio distortion when running the amplifier. After looking all over for RF and grounding issues, we swapped the coax cable from the K3 to the amplifier, with a longer cable (about 6 to 7 feet - largely because that was the only free cable we had handy). Making the cable from the K3 to the amplifier longer eliminated the issue. putting the cable back brought the problem back. Making a new short cable still left us with audio distortion. The only thing that seemed to solve the issue in all 4 cases was making the K3 to amplifier cable longer. This got me to investigate my own station. It turns out that the cable I used between the amplifier and the radio was about 6 feet long. Swapping this cable for a shorter length brought about audio distortion symptoms. Does anyone have any thoughts about this? Cheers Jim K8JK __ 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 tony@verizon.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 jameskvoch...@me.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 j...@jtmiller.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] Strange K3 KPA500 Issues fixed with a longer coax cable?
Jim, RFI is not the issue here.What is happening is a matter of Inductance By adjusting the length of the Jumper, the Impedance is adjusted accordingly. 73 Milverton. From: James kvochick jameskvoch...@me.com To: N2TK, Tony tony@verizon.net Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Wednesday, November 19, 2014 7:19 AM Subject: Re: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? We tried all the normal common mode tricks, but the feedline length appeared to be the most effective. Jim K8JK Sent from my iPad On Nov 19, 2014, at 7:32 AM, N2TK, Tony tony@verizon.net wrote: I had a similar problem many years ago with an L-4B amp. I wonder if adding ferrite to the coax would solve this problem? GL N2TK, Tony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Kvochick Sent: Tuesday, November 18, 2014 9:16 PM To: elecraft@mailman.qth.net Cc: k...@att.net Subject: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? I've stumbled into a strange problem. I have 4 friends with similar K3 stations to my own; K3 KPA500 KAT500. The stations are powered with similar power sources. One station sounds fine, works great. The other 4 had strange issues that manifested themselves as audio distortion when running the amplifier. After looking all over for RF and grounding issues, we swapped the coax cable from the K3 to the amplifier, with a longer cable (about 6 to 7 feet - largely because that was the only free cable we had handy). Making the cable from the K3 to the amplifier longer eliminated the issue. putting the cable back brought the problem back. Making a new short cable still left us with audio distortion. The only thing that seemed to solve the issue in all 4 cases was making the K3 to amplifier cable longer. This got me to investigate my own station. It turns out that the cable I used between the amplifier and the radio was about 6 feet long. Swapping this cable for a shorter length brought about audio distortion symptoms. Does anyone have any thoughts about this? Cheers Jim K8JK __ 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 tony@verizon.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 jameskvoch...@me.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 tnny...@yahoo.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] OT- experience porting XP-WIN7
You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
The RF in the shack answer always makes me think that if I put RF in the shack of someone on the other side of the country, then I surely have RF in my shack too. I think the real question is if the RF in the shack, everybody's shack, getting into something like the mic wiring or it's preamp. When I read the longer cable response, I thought that it's just a change to the RF getting into something. If it is more inductance that helps, then what effect does RF Ferrite clipped onto a short coax have? Just a thought. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/Strange-K3-KPA500-Issues-fixed-with-a-longer-coax-cable-tp7594874p7594894.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 Message delivered to arch...@mail-archive.com
[Elecraft] [KX3] Audio going low when tuning towards a strong station
Hi all, Whenever I tune my KX3 and there is a strong station nearby, the audio goes low, it sort of sounds like the receiver is being blocked by the strong station, or the gain is reduced automatically. As I stop tuning, the audio comes back up to the original level. I tried switching off the AGC which was the first thing that came to mind, but the behaviour stays the same. I am using DSP firmware rev 1.30 and MCU firmware rev 2.23, and have the roofing filter installed. Any clues as to what I may be seeing with this otherwise great rig? 73, Wouter Jan Ubbels PE4WJ __ 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] OT- experience porting XP-WIN7
Your experience is exactly why I avoid changing OSs as long as possible. When I do, I take it as an opportunity to drop applications and features that I haven't been using - no need to port what you won't use. Nonetheless, it's always odious. However, I must say that converting to Win 7 was a really good move for me. It boots faster and runs much more reliably than XP on my setup. Now I'm trying to avoid Win 8 and expect I'll skip it entirely. Totally new OSs from Microsoft tend to be flaky until their second incarnation. 73, /Rick N6XI On Wed, Nov 19, 2014 at 6:39 AM, brian als...@nc.rr.com wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 rta...@gmail.com -- Rick Tavan N6XI Truckee, CA __ 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] Strange K3 KPA500 Issues fixed with a longer coax cable?
A properly sourced and terminated length of coax is not inductive. You have classic symptoms of common mode current problems. J On Nov 19, 2014, at 9:31 AM, Milverton M. Swire via Elecraft elecraft@mailman.qth.net wrote: Jim, RFI is not the issue here.What is happening is a matter of Inductance By adjusting the length of the Jumper, the Impedance is adjusted accordingly. 73 Milverton. From: James kvochick jameskvoch...@me.com To: N2TK, Tony tony@verizon.net Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Wednesday, November 19, 2014 7:19 AM Subject: Re: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? We tried all the normal common mode tricks, but the feedline length appeared to be the most effective. Jim K8JK Sent from my iPad On Nov 19, 2014, at 7:32 AM, N2TK, Tony tony@verizon.net wrote: I had a similar problem many years ago with an L-4B amp. I wonder if adding ferrite to the coax would solve this problem? GL N2TK, Tony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Kvochick Sent: Tuesday, November 18, 2014 9:16 PM To: elecraft@mailman.qth.net Cc: k...@att.net Subject: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? I've stumbled into a strange problem. I have 4 friends with similar K3 stations to my own; K3 KPA500 KAT500. The stations are powered with similar power sources. One station sounds fine, works great. The other 4 had strange issues that manifested themselves as audio distortion when running the amplifier. After looking all over for RF and grounding issues, we swapped the coax cable from the K3 to the amplifier, with a longer cable (about 6 to 7 feet - largely because that was the only free cable we had handy). Making the cable from the K3 to the amplifier longer eliminated the issue. putting the cable back brought the problem back. Making a new short cable still left us with audio distortion. The only thing that seemed to solve the issue in all 4 cases was making the K3 to amplifier cable longer. This got me to investigate my own station. It turns out that the cable I used between the amplifier and the radio was about 6 feet long. Swapping this cable for a shorter length brought about audio distortion symptoms. Does anyone have any thoughts about this? Cheers Jim K8JK __ 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 tony@verizon.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 jameskvoch...@me.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 tnny...@yahoo.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 j...@jtmiller.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] OT- experience porting XP-WIN7
If your Win7 OS is an OEM version, it will have drivers for the machine it was intended for already included. OEM versions will likely not have drivers for your machine (if different from the OEM's target). System Builder OS versions come with a bunch of commonplace drivers, but nothing specific to any machine. For drivers, it's best to to visit the computer OEM's support website and download what you need. You can find out what you have on the mobo by running Device Manager and scrolling through the device tree, making a list. I've had to do this three times for Win7 - once for a Samsung laptop using System Builder, and twice for Dell desktops that were slightly different from each other, each using an OEM version of Win7. It's not too big of a chore, and being thorough lets you build a platform that doesn't have any missing or improperly-configured devices (um, well in theory at least). Or maybe everyone already knows all this. :) If you have ancient software that uses the Win16 model, you can also install Virtual XP to run these apps. Microsoft doesn't support XP any more, but you can still download the VM and the XP CD image files and install them. The VM method allows running two OSs on one platform at the same time. The same method may be used to run Ubuntu Linux and other OSs in a similar way. 73, matt W6NIA On Wed, 19 Nov 2014 14:39:25 +, you wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 mzil...@roadrunner.com 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT- experience porting XP-WIN7
Totally new OSs from Microsoft tend to be flaky until their second incarnation. Windows 8 or 8.1 is hardly a totally new OS - it is primarily a touch interface layered over Windows 7. If one is not using the tablet or Windows Phone interface on a touch enabled device, switching to the traditional desktop provides nearly the same interface as Windows 7. Coupled with some third party add-ons (like Classic Shell) the user can achieve nearly the same interface as Vista or Windows XP with the added reliability of Windows 8 under the hood. I have both Windows 7 and Windows 8.1 systems with Classic Shell and I would not bother with Windows 7 on a new system - nor would I even consider upgrading hardware that will not support Windows 8 given the sub-$500 price point of quality new i5 based systems. 73, ... Joe, W4TV On 2014-11-19 10:39 AM, Rick Tavan N6XI wrote: Your experience is exactly why I avoid changing OSs as long as possible. When I do, I take it as an opportunity to drop applications and features that I haven't been using - no need to port what you won't use. Nonetheless, it's always odious. However, I must say that converting to Win 7 was a really good move for me. It boots faster and runs much more reliably than XP on my setup. Now I'm trying to avoid Win 8 and expect I'll skip it entirely. Totally new OSs from Microsoft tend to be flaky until their second incarnation. 73, /Rick N6XI On Wed, Nov 19, 2014 at 6:39 AM, brian als...@nc.rr.com wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 rta...@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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT- experience porting XP-WIN7
I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As for me, I picked up a Shuttle machine with WIN8.1 and 16 GB of RAM. It sits on the test bench awaiting the day my old XP Station machine finally dies. Not until then will I embark on the self-torture of updating. 73, Dick, W1KSZ On 11/19/2014 7:39 AM, brian wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 w1...@earthlink.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] K3 audio artifacts
Hi Vic, What roofing filter(s) do you have? 73, Jim K9YC On Wed,11/19/2014 2:43 AM, Vic Rosenthal wrote: Only if it's enough attenuation to reduce the volume significantly. Several people suggested reduced RF gain. I tried this too, including turning off AGC and riding RF gain. The loudness of the 'crashes' seems to depend on the loudness of the signal. On 19 Nov 2014 10:39, David Cutter wrote: Does it go away if you switch in some RF attenuation? __ 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] KPA500 Power In Digital Modes
On Wed,11/19/2014 3:50 AM, Ken wrote: On Nov 10, 2014, at 7:30 PM, Joe Subich, W4TV wrote: Depending on the crest factor (peak to average ratio) of the mode in use, the average power from the KPA-5000 should be kept 6 to 10 dB below the rated maximum (e.g., 60 to 150 watts) just as a 100W transceiver should be kept between 10 and 25 watts average. Joe made this statement assuming that the KPA500 produced FAR more distortion than it actually does. A few days later, I showed measurements with a K3 driving a KPA500 to 500W with PSK31 showing that the distortion was EXTREMELY low. I had already published comparable measurements for CW and SSB, with the same result. P3SpectrumMeasurementsSlides.pdf 73, Jim K9YC __ 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] OT- experience porting XP-WIN7
Win 7 is more stable that Win XP. And now Microsoft no longer supports XP, perhaps a more significant issue. I casually support a business that must us Wordperfect 5.1, and they must use XP for that reason. But it's becoming harder and harder to keep that in play. 73, Phil W7OX On 11/19/14 8:33 AM, Richard Solomon wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As for me, I picked up a Shuttle machine with WIN8.1 and 16 GB of RAM. It sits on the test bench awaiting the day my old XP Station machine finally dies. Not until then will I embark on the self-torture of updating. 73, Dick, W1KSZ On 11/19/2014 7:39 AM, brian wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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] OT- experience porting XP-WIN7
On Wed,11/19/2014 8:10 AM, Joe Subich, W4TV wrote: I have both Windows 7 and Windows 8.1 systems with Classic Shell and I would not bother with Windows 7 on a new system - nor would I even consider upgrading hardware that will not support Windows 8 given the sub-$500 price point of quality new i5 based systems. I've been using T4x Thinkpads running XP for years, and they have done everything I needed, both in the shack and for some very demanding engineering applications. The newest of them, a dual core T61 that's about six years old, is very happily running N1MM+. To make it work reliably, I give it real hardware serial ports, a decent USB sound card, and use WinKey to send CW. One serial port comes from a docking station, two more from a PCMCIA card. This summer, with XP support ended, I bought a Win7 machine for my desktop that does engineering work and email, and a Win 8.1 for the XYL who does only email and A/V playback. I found the mind of its own of Win 8.1 to be maddening, but I very much like Win 7 once I found and read an excellent third party manual. I have a hard and fast rule to NEVER upgrade a machine to a new OS, but rather to buy a new machine with the OS I want installed. Because power is unreliable where I live, I use laptops almost exclusively. I've found that it is always a good move to buy the docking station -- for older machines, it comes with at least one real serial port, several good USB ports, and a VGA port. Bought on EBay, they're pretty inexpensive. 73, Jim K9YC __ 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] K3 audio artifacts
400 Hz, 1.0 kHz and 2.8 kHz. Usually the 400 Hz is in use. Why? On 19 Nov 2014 18:41, Jim Brown wrote: Hi Vic, What roofing filter(s) do you have? 73, Jim K9YC On Wed,11/19/2014 2:43 AM, Vic Rosenthal wrote: Only if it's enough attenuation to reduce the volume significantly. Several people suggested reduced RF gain. I tried this too, including turning off AGC and riding RF gain. The loudness of the 'crashes' seems to depend on the loudness of the signal. On 19 Nov 2014 10:39, David Cutter wrote: Does it go away if you switch in some RF attenuation? -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT- experience porting XP-WIN7
Jim - Would you be so kind as to enlighten the rest of us as to the title and author of that Win 7 manual? Thanks - Jim, KL7CC On 11/19/2014 8:17 AM, Jim Brown wrote: snip I very much like Win 7 once I found and read an excellent third party manual. snip 73, Jim K9YC __ 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] K3 audio artifacts
On Wed,11/19/2014 9:21 AM, Vic Rosenthal 4X6GP/K2VCO wrote: 400 Hz, 1.0 kHz and 2.8 kHz. Usually the 400 Hz is in use. Why? I was wondering if what you are hearing is the result of overload of the DSP. I do most contesting with a Ten Tec Titan. Although it does very good QSK, I've also had the experience of vacuum relay failures during a contest, so when I'm using it, I don't use QSK. I do use QSK in 100W contests like NAQP, and I don't remember the sort of issue you describe. Of course, other signals are 15 dB weaker too. :) I have the 8-pole 250 Hz filter, and have it engaged most of the time for CW contesting. On the lower HF bands, I usually have the Atten engaged and the preamp off. On the higher bands, Atten is off and Preamp is usually on. 73, Jim K9YC __ 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] OT- experience porting XP-WIN7
On Wed,11/19/2014 9:32 AM, Jim Wiley wrote: Would you be so kind as to enlighten the rest of us as to the title and author of that Win 7 manual? It's The Missing Manual by David Pogue. I also bought his book for 8.1, but haven't read it yet -- I had already struggled through setting up my XYL's machine before I found that book. :) 73, Jim K9YC __ 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 2M,, KX3
Just a quick report on the 2 meter option at my QTH my antennas are 150 Ft away from many hospital pagers at 150 Mhz which cause issues on all the FM gear I have so I expected the worse but using a simple stub I am able to eliminate any interference from the pagers the stub is tunable and will notch any problems the receiver sounds and works as well as my DEM station and takes up a lot less space really amazing the only issue was not seeing any output on the KX3 RF bridge,,, an nice enhancement would be to make the RF/SWR metering a bit more sensitive on 144 many thanks to Howard K6IA elecraft support for helping my bone headiness I have a DEM 144 transceiver and a kenwood TS 850 up for sale Bob K3DJC __ 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] OT- experience porting XP-WIN7
Classic Shell is great with Win 8. Thankfully Windows 10 is looking more like Win 7 and so far it's working fine on my bête test machine. Phil -- Sent from my iPhone 5S On Nov 19, 2014, at 09:17, Jim Brown j...@audiosystemsgroup.com wrote: On Wed,11/19/2014 8:10 AM, Joe Subich, W4TV wrote: I have both Windows 7 and Windows 8.1 systems with Classic Shell and I would not bother with Windows 7 on a new system - nor would I even consider upgrading hardware that will not support Windows 8 given the sub-$500 price point of quality new i5 based systems. I've been using T4x Thinkpads running XP for years, and they have done everything I needed, both in the shack and for some very demanding engineering applications. The newest of them, a dual core T61 that's about six years old, is very happily running N1MM+. To make it work reliably, I give it real hardware serial ports, a decent USB sound card, and use WinKey to send CW. One serial port comes from a docking station, two more from a PCMCIA card. This summer, with XP support ended, I bought a Win7 machine for my desktop that does engineering work and email, and a Win 8.1 for the XYL who does only email and A/V playback. I found the mind of its own of Win 8.1 to be maddening, but I very much like Win 7 once I found and read an excellent third party manual. I have a hard and fast rule to NEVER upgrade a machine to a new OS, but rather to buy a new machine with the OS I want installed. Because power is unreliable where I live, I use laptops almost exclusively. I've found that it is always a good move to buy the docking station -- for older machines, it comes with at least one real serial port, several good USB ports, and a VGA port. Bought on EBay, they're pretty inexpensive. 73, Jim K9YC __ 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 w...@socal.rr.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] OT- experience porting XP-WIN7
I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As I wrote on another list just a day or two ago, there are many reasons to upgrade both hardware and operating systems -particularly when one is using Windows XP with hardware commonly available when XP was the newest and greatest. Current hardware - particularly the mid-speed Intel i5 processor and its AMD equivalents are much faster - typically eight processor units (four hyperthreading cores) - and the support chipsets are capable of much higher data through- put (disk access rates) that there is simply no comparison when one runs multiple programs or sets of programs. For example, most of the logging (particularly contest logging) environments severely stress a single or dual core Pentium processor that was the norm before the introduction of Windows Vista. Those support chip sets do not contain the Windows High Performance Event Timer [HPET] used by 2Tone and EXTFSK 2 for bit bang FSK generation or by some loggers for CW generation. The dual core Pentium processor is simply maxed out when doing CW or FSK, logging, running Cluster, etc. not to mention trying to handle DSP necessary to run an SDR Console for sound card based Panadapter (or CW Skimmer), etc. Both operating systems and PC hardware have advanced light years in the nearly 13 years since Windows XP first appeared in preview mode and even in the eight years since Windows Vista. Those old platforms are as much off the developers' RADAR as 16 bit Windows 3.1, 95, and 98 ... reactionary attempts to keep those platforms going not withstanding. 73, ... Joe, W4TV On 2014-11-19 11:33 AM, Richard Solomon wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As for me, I picked up a Shuttle machine with WIN8.1 and 16 GB of RAM. It sits on the test bench awaiting the day my old XP Station machine finally dies. Not until then will I embark on the self-torture of updating. 73, Dick, W1KSZ On 11/19/2014 7:39 AM, brian wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 w1...@earthlink.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 li...@subich.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] KPA500 Power In Digital Modes
Joe made this statement assuming that the KPA500 produced FAR more distortion than it actually does. A few days later, I showed measurements with a K3 driving a KPA500 to 500W with PSK31 showing that the distortion was EXTREMELY low. Jim, is misconstruing what I wrote. I specifically said *average* power from the KPA-500 should be kept 6-10 dB below the maximum. Jim made his measurements at PEP which *includes* the crest factor (PEP = average power X Crest factor or alternately Average Power = PEP/Crest Factor). If his measurements were made at average power, the results would have been considerably different. With most PSK, MFSK, PACTOR, etc. modes, it is important that the average power output be kept low enough that none of the amplifier stages is driven into saturation on the peaks which can be anywhere from 3 dB to 13 dB greater than average depending on the digital modulation. Note: FSK, JT65 and JT9 modes are saturated - their crest factor is 1 (0 dB). Like CW, for those modes, PEP = average power. 73, ... Joe, W4TV On 2014-11-19 11:49 AM, Jim Brown wrote: On Wed,11/19/2014 3:50 AM, Ken wrote: On Nov 10, 2014, at 7:30 PM, Joe Subich, W4TV wrote: Depending on the crest factor (peak to average ratio) of the mode in use, the average power from the KPA-5000 should be kept 6 to 10 dB below the rated maximum (e.g., 60 to 150 watts) just as a 100W transceiver should be kept between 10 and 25 watts average. Joe made this statement assuming that the KPA500 produced FAR more distortion than it actually does. A few days later, I showed measurements with a K3 driving a KPA500 to 500W with PSK31 showing that the distortion was EXTREMELY low. I had already published comparable measurements for CW and SSB, with the same result. P3SpectrumMeasurementsSlides.pdf 73, Jim K9YC __ 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 li...@subich.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] Strange K3 KPA500 Issues fixed with a longer coax cable?
Well, this is surprising, to say the least. Inasmuch as it seems to have happened in several places. I normally don't post remarks of the no-problem-here sort but I don't think this has anything to do with RFI or inductance. Neither are ferrite chokes likely to solve the problem. My K3-KPA500 cable is only 65 cm (26) long (the only piece of RG58 in my setup) but nobody mentioned any distortion. BTW: Both the K3 AND the KPA500 are earthed (grounded, if you prefer) separately to a common earth... I mean: grounding point, as well as the (manual) tuner, the SteppIR controller, etc. If a longer cable can solve the problem, it's OK but the main question (the WHY?) remains unanswered... Strange, indeed. 73 Richard - HB9ANM __ 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] [KX3] Audio going low when tuning towards a strong station
Have you got VFO NR enabled? Not sure, but maybe this is causing the effect you are observing. If you turn VFO NR off, and get tuning noise, then take a look at this application note: http://www.elecraft.com/manual/KX3%20Tuning%20Noise%20Mod%20rev%20B3.pdf If you have the latest firmware, then enabling RX SHFT=8kHz no longer prevents you from using Dual Watch feature, although it will prevent use of the roofing filter. As you get experience with the radio you'll work out the optimum settings under various conditions. 73, Matt VK2RQ. On 20 Nov 2014, at 2:15 am, Wouter Jan Ubbels wjubb...@gmail.com wrote: Hi all, Whenever I tune my KX3 and there is a strong station nearby, the audio goes low, it sort of sounds like the receiver is being blocked by the strong station, or the gain is reduced automatically. As I stop tuning, the audio comes back up to the original level. I tried switching off the AGC which was the first thing that came to mind, but the behaviour stays the same. I am using DSP firmware rev 1.30 and MCU firmware rev 2.23, and have the roofing filter installed. Any clues as to what I may be seeing with this otherwise great rig? 73, Wouter Jan Ubbels PE4WJ __ 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 matt.vk...@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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT- experience porting XP-WIN7
But if you're not maxed out? I personally think I haven't gained much in the new machine. One reason I can think of is if virus scanners like AVG stop supporting XP. Another obvious thing plug in card hardware failure and no substitute is available. Some printers no longer have drivers for XP. But what do I know, I drive a 14 year old pickup truck. 73 de Brian/K3KO On 11/19/2014 19:28 PM, Joe Subich, W4TV wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As I wrote on another list just a day or two ago, there are many reasons to upgrade both hardware and operating systems -particularly when one is using Windows XP with hardware commonly available when XP was the newest and greatest. Current hardware - particularly the mid-speed Intel i5 processor and its AMD equivalents are much faster - typically eight processor units (four hyperthreading cores) - and the support chipsets are capable of much higher data through- put (disk access rates) that there is simply no comparison when one runs multiple programs or sets of programs. For example, most of the logging (particularly contest logging) environments severely stress a single or dual core Pentium processor that was the norm before the introduction of Windows Vista. Those support chip sets do not contain the Windows High Performance Event Timer [HPET] used by 2Tone and EXTFSK 2 for bit bang FSK generation or by some loggers for CW generation. The dual core Pentium processor is simply maxed out when doing CW or FSK, logging, running Cluster, etc. not to mention trying to handle DSP necessary to run an SDR Console for sound card based Panadapter (or CW Skimmer), etc. Both operating systems and PC hardware have advanced light years in the nearly 13 years since Windows XP first appeared in preview mode and even in the eight years since Windows Vista. Those old platforms are as much off the developers' RADAR as 16 bit Windows 3.1, 95, and 98 ... reactionary attempts to keep those platforms going not withstanding. 73, ... Joe, W4TV On 2014-11-19 11:33 AM, Richard Solomon wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As for me, I picked up a Shuttle machine with WIN8.1 and 16 GB of RAM. It sits on the test bench awaiting the day my old XP Station machine finally dies. Not until then will I embark on the self-torture of updating. 73, Dick, W1KSZ On 11/19/2014 7:39 AM, brian wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in the process. 73 de Brian/K3KO __ 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 w1...@earthlink.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 li...@subich.com __ Elecraft mailing list
[Elecraft] KAT500 Remote control tool for Mac OS-X
Hi Mac users, see here: https://itunes.apple.com/app/kat500ui/id940040854?mt=12 https://itunes.apple.com/app/kat500ui/id940040854?mt=12 I made a small and simple tool for the Elecraft tuner KAT500. It is NOT a replacement of the Elecraft KAT500 Utility application. It duplicates the controls and indications from the front panel and it shows some internals. Now you can locate your tuner on a more convenience place. 73 de Tom, DL2RUM __ 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] OT- experience porting XP-WIN7
On 2014-11-19 3:24 PM, brian wrote: But if you're not maxed out? Unless one is only running a logging program to log - and not doing Cluster in the heat of a major contest, running an SDR console for panadapter, using the computer for digital send and receive, using the computer to generate CW, etc. and with no e-mail, anti-virus, web browser, etc. running in the background - most users are closer to being maxed out than they know. Many of the commonly heard software support issues can be traced to resource exhaustion in the operating system ... due primarily to all the process swapping that occurs in trying to run the many simultaneous tasks users unknowingly pile up. Windows generally does a good job of hiding the problems ... right up to the point the system totally crashes. 73, ... Joe, W4TV On 2014-11-19 3:24 PM, brian wrote: But if you're not maxed out? I personally think I haven't gained much in the new machine. One reason I can think of is if virus scanners like AVG stop supporting XP. Another obvious thing plug in card hardware failure and no substitute is available. Some printers no longer have drivers for XP. But what do I know, I drive a 14 year old pickup truck. 73 de Brian/K3KO On 11/19/2014 19:28 PM, Joe Subich, W4TV wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As I wrote on another list just a day or two ago, there are many reasons to upgrade both hardware and operating systems -particularly when one is using Windows XP with hardware commonly available when XP was the newest and greatest. Current hardware - particularly the mid-speed Intel i5 processor and its AMD equivalents are much faster - typically eight processor units (four hyperthreading cores) - and the support chipsets are capable of much higher data through- put (disk access rates) that there is simply no comparison when one runs multiple programs or sets of programs. For example, most of the logging (particularly contest logging) environments severely stress a single or dual core Pentium processor that was the norm before the introduction of Windows Vista. Those support chip sets do not contain the Windows High Performance Event Timer [HPET] used by 2Tone and EXTFSK 2 for bit bang FSK generation or by some loggers for CW generation. The dual core Pentium processor is simply maxed out when doing CW or FSK, logging, running Cluster, etc. not to mention trying to handle DSP necessary to run an SDR Console for sound card based Panadapter (or CW Skimmer), etc. Both operating systems and PC hardware have advanced light years in the nearly 13 years since Windows XP first appeared in preview mode and even in the eight years since Windows Vista. Those old platforms are as much off the developers' RADAR as 16 bit Windows 3.1, 95, and 98 ... reactionary attempts to keep those platforms going not withstanding. 73, ... Joe, W4TV On 2014-11-19 11:33 AM, Richard Solomon wrote: I often wonder why folks will abandon a perfectly good working system just to have the latest and greatest. Just look at all the pain you go through and then ask yourself what the benefits are. As for me, I picked up a Shuttle machine with WIN8.1 and 16 GB of RAM. It sits on the test bench awaiting the day my old XP Station machine finally dies. Not until then will I embark on the self-torture of updating. 73, Dick, W1KSZ On 11/19/2014 7:39 AM, brian wrote: You often see postings here advocating abandoning XP in favor of newer OS's. Yeah sounds great, but the devil is in the details. I just finished a port to a faster refurbed multicore WIN7 machine. The task involved: 1)50 programs and data 2) 3 sound cards (4 if you include the video) 3) eight USB ports of stuff 4) five RS232 ports of stuff 5) one lpt port 6) Networking with XP computers 7) Internet I started October 23. Finally I have 98% of what I had working under XP. It took an estimated 80 hours of work and cost in excess of $500. Admittedly, I'm on the low knowledge end of OS stuff (and maybe in the majority of ham users in that regard). The most difficult parts were: 1) Device drivers. Trial and error process. 2) Sound card problems. It's a zoo. 3) Networking (it takes 15 at first unknown steps in several pull down boxes to do what a single click in XP used to do) I still have one unresolved issue with the motherboard sound. It simply won't output anything via line out. I'm almost convinced that the sound out hardware is bad.It's quite possible on the refurbed machine that the previous owner clobbered the hardware. WIN7 seems a bit flaky in sound card stuff. It isn't a trivial process unless you're just interested in E-mail, Internet browsing and a few spreadsheet programs. Thank goodness WIN7 isn't bleeding edge. I can't imagine doing this for a newly released OS. GOOGLE is your friend in
Re: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable?
There are certainly other possibilities. Making an amplifier unconditionally stable with any combination of source impedance ,load impedance , drive level , and supply voltage and achieving any reasonable gain , efficiency , bandwidth , and able to withstand about anything a customer can dream up at the same time is a real challenge . And what these source and load impedances are in band or well out of band have a strong bearing on stability. Then to add to the fun, if you are not a high quantity buyer of the semiconductors , and therefore cannot demand there be no changes in processing, you can do a design and a couple years later all of a sudden you have a stability problem that never existed because the vendor decided to make a process change such that the device still met the typical specs ,but had a much stronger propensity for half freq oscillations. Some process changes that raise low frequency gain without much effect on high frequency gain can make an amp have a tendency for low frequency oscillations because the decoupling /low frequency circuitry loading is now not sufficient to suppress that . Enough of that , what CAN be happening here is with certain cable lengths between the amp and the K3 , in band or out of band impedances presented to the K3 could well make the K3 PA want to have a spurious output like half frequency oscillation or low frequency oscillations . I do not recall if the KPA500 has any resistive broadband padding at the input in normal operation , I believe they say they switch in a 3 dB pad when extreme overdrive is applied. Resistive pads are a great way to limit in band or out of band impedance excursions - BUT you give up amp gain dB for dB. Same is true at the output of the amplifier -(or combinations of in and output) certain loads may make the amp more prone to a spurious output at half the driving frequency - even though the load may look like a perfect 50 ohms in band at the fundamental frequency . This is another joyous feature of semiconductor power amp designers get to experience whether bipolar or FET . The designer has to be careful what the out of band impedances of the output filters are - and just because you have a 1:1 SWR in band with your antenna , the out of band impedances can be darn near anything . As I recall , in this case , he had the same problem even into a dummy load on the output. So just as an experiment it might be interesting to see of a 3 dB resistive pad between the amp and the K3 made the whole thing totally independent of cable length. I am m not talking about cable loss , I am talking about limiting the possible impedance excursions especially out of band . Enough of this - I spent 30 years of my life designing and putting into production these beasts , I enjoy the fruits of the Elecraft designers efforts .have no interest whatever in doing that again. I like antennas much better they don't half f or oscillate at low frequencies- at least so far . Hank K7HP -Original Message- From: Richard - HB9ANM Sent: Wednesday, November 19, 2014 12:58 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Strange K3 KPA500 Issues fixed with a longer coax cable? Well, this is surprising, to say the least. Inasmuch as it seems to have happened in several places. I normally don't post remarks of the no-problem-here sort but I don't think this has anything to do with RFI or inductance. Neither are ferrite chokes likely to solve the problem. My K3-KPA500 cable is only 65 cm (26) long (the only piece of RG58 in my setup) but nobody mentioned any distortion. BTW: Both the K3 AND the KPA500 are earthed (grounded, if you prefer) separately to a common earth... I mean: grounding point, as well as the (manual) tuner, the SteppIR controller, etc. If a longer cable can solve the problem, it's OK but the main question (the WHY?) remains unanswered... Strange, indeed. 73 Richard - HB9ANM __ 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 pfizenma...@q.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] KX3 Voice Monitor
I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q From: David Ahrendtsdavidahren...@me.com To:Elecraft@mailman.qth.net Subject: [Elecraft] KX3 Voice Monitor (MON) Message-ID:48ec1408-5026-4573-b533-efc58254c...@me.com Content-Type: text/plain; charset=us-ascii Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual? David Ahrendts, KC0XT, LA KX3, KXPA500, PX3 __ 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] KX3 Voice Monitor
Thanks, David. Wish you were next door and we could compare OTA, which is, admittedly probably the best way. But I will try KK7P’s suggestion to DVR a clip and then play it back (repeated below). I have no doubt that the KX3 produces superior audio, and I’m experimenting with that as I get to know the rig. I have learned also (by just using this list) that there are abundant opinions and preferences about audio quality and parameters (moderator just began laughing loudly). For me, my monitor using a Heil 5.1 Gold Elite in its broader mode (it has two two modes) sounded less crisp than OTA S9+ copy. So I’m experimenting with that mich and with the Elecraft MH3. Thanks for comparing notes. 73’s. David Ahrendts, KC0XT, LA KK7P, Lyle: Note that the KX3 has a great tool for adjusting Tx EQ and CMP. Record your voice using the DVR, then play it back using MON. Adjust Tx EQ and CMP and play back the sample and you will be able to hear what your signal will sound like to the other station. Doing this live with a microphone is not nearly as effective due to bone conduction of your voice to your ears. On Nov 19, 2014, at 2:52 PM, David DeGeorge d...@degeorge.org wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q From: David Ahrendtsdavidahren...@me.com To:Elecraft@mailman.qth.net Subject: [Elecraft] KX3 Voice Monitor (MON) Message-ID:48ec1408-5026-4573-b533-efc58254c...@me.com Content-Type: text/plain;charset=us-ascii Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual? David Ahrendts, KC0XT, LA KX3, KXPA500, PX3 __ 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 davidahren...@me.com David Ahrendts davidahren...@me.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] KX3 Voice Monitor
David, There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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] KX3 Voice Monitor
Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR — page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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] KX3 Voice Monitor
David, thanks for weighing in. I’m experimenting with using the DVR and playing back and it is quite effective in judging audio quality. It is a little better than MON “on the fly” since it allows you to step back objectively and really hear. Best and 73s. David A., KC0XT, LA On Nov 19, 2014, at 5:37 PM, David DeGeorge d...@degeorge.org wrote: Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR — page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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 davidahren...@me.com David Ahrendts davidahren...@me.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] KX3 Voice Monitor
It should be better. Bone conduction happens while you are speaking and enhances the bass. If you listen without speaking, you get a much better idea. wunder K6WRU CM87wj http://observer.wunderwood.org/ On Nov 19, 2014, at 5:51 PM, David Ahrendts davidahren...@me.com wrote: David, thanks for weighing in. I’m experimenting with using the DVR and playing back and it is quite effective in judging audio quality. It is a little better than MON “on the fly” since it allows you to step back objectively and really hear. Best and 73s. David A., KC0XT, LA On Nov 19, 2014, at 5:37 PM, David DeGeorge d...@degeorge.org wrote: Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR — page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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 davidahren...@me.com David Ahrendts davidahren...@me.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 wun...@wunderwood.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Voice Monitor
Besides bone conduction, another source of delay may be the DSP processing inside the KX3 itself. This can wreak havoc with your CW side tone for example if you add an aftermarket audio DSP to a radio. Elecraft have obviously taken steps to make sure that the KX3 doesn't have an issue with CW sidetone, but in the case of voice where they are doing audio equalisation for example, they may be using some long FIR filters that introduce a bit of delay. Can't say I've really noticed, because I rarely use the KX3 on fone, and never with monitor on fone. 73, Matt VK2RQ On 20 Nov 2014, at 12:37 pm, David DeGeorge d...@degeorge.org wrote: Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR ― page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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 matt.vk...@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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Voice Monitor
David, The part of the equation that you are not realizing is that there is an inherent delay in DSP processing that may not be apparent with your ICOM-7600 but is present in the KX3. The audio through bone conduction will be apparent in your ears before the audio from the monitor. The delay will not not be much, but it will give rise to a similar response (as you said) to the AFX delay response. 73, Don W3FPR On 11/19/2014 8:37 PM, David DeGeorge wrote: Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR — page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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 w3...@embarqmail.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] KX3 Voice Monitor
Gents, before we stray on this thread. Appreciate all of your input, Genuinely. But, I never had an “issue of a delay” in response in the MON function. My issue was a “muddy” audio response, i.e.: not sibilant enough for my taste, rather weighty at the bottom audio freqs but not balanced at the top, etc. And I wasn’t sure, being three-weeks into the KX3 as a newby, that I was actually hearing what my microphone was producing. A nice 10-minute session of DVRing helped tremendously and I did come up with EQ that I prefer — to my ear: good presence, not muddy, pushed 2400 and 3200 gently. This is with the wonderful Heil MC5.1 Gold Elite which, I think already pushes the 2K mark some. Gonna do the same test for the fabulous Elecraft MH3 another day. My conclusion: MON is pretty darn close, but there is nothing like DVRing it and stepping aside to really listen objectively while you’ree not speaking. Best to you all and 73s. David Ahrendts, KC0XT, Los Angeles On Nov 19, 2014, at 6:31 PM, Don Wilhelm w3...@embarqmail.com wrote: David, The part of the equation that you are not realizing is that there is an inherent delay in DSP processing that may not be apparent with your ICOM-7600 but is present in the KX3. The audio through bone conduction will be apparent in your ears before the audio from the monitor. The delay will not not be much, but it will give rise to a similar response (as you said) to the AFX delay response. 73, Don W3FPR On 11/19/2014 8:37 PM, David DeGeorge wrote: Not so sure that I buy the bone conduction theory; I use the same headset with my ICOM-7600 and its monitor, same head, same bones :-), but no effect. I tried the suggestion to use the DVR and that worked fine, but I like hearing myself when transmitting and I can’t do that. It isn’t a very big deal but I am concerned that there some sort of RF leakage internal to the KX3 that is being picked up by the monitor. According to the portable book the transmit path including the TX equalizer are not in the circuit when making a DVR — page 100. David WQ2Q There *will* be a delay between the monitor output and the sound your ears hear because of bone conduction. That is why Lyle suggested using DVR to evaluate (and adjust) your TX audio EQ settings. 73, Don W3FPR On 11/19/2014 5:52 PM, David DeGeorge wrote: I am a new KX3 user also and have noticed that the monitor seems to have some sort of effect applied much like the audio effects (which I have turned off). At first I thought that it might be RF in my headset but it persisted with the RF output turned to 0 and the rig terminated in a dummy load. It present at any level except 0. David WQ2Q __ 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 w3...@embarqmail.com mailto:w3...@embarqmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html http://www.qsl.net/donate.html Message delivered to davidahren...@me.com mailto:davidahren...@me.com David Ahrendts davidahren...@me.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] S9+40 Noise
Hi all, Just wanted to say thanks for hanging in there with me tonight. I've got a major problem with power line RFI at the moment. Ever since the weather cooled down I've been fighting with S9+40 noise coming from 2 poles adjacent to my lot. I may have to take a break for a few weeks, as there is only so much the K3 NR/NB combo can overcome. Hopefully I can get this resolved by the power company quickly. 73, Morgan NS0R. __ 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] S9+40 Noise
Morgan, There's a lot of that going around. If you can get the pole number, contact the power company and let them know they are having a problem that is interfering with your HF operation. Give them the pole numbers. They may ask how you found which poles. I've been doing this for a number of years. Our local power company only has a few techs to handle an area of about half the state, but they do respond. I would expect they would come out to fix your problem also. Just make sure they know you are a ham operator. 73, Barry K3NDM - Original Message - From: Morgan Bailey mcb2...@gmail.com To: elecraft elecraft@mailman.qth.net Sent: Wednesday, November 19, 2014 10:26:55 PM Subject: [Elecraft] S9+40 Noise Hi all, Just wanted to say thanks for hanging in there with me tonight. I've got a major problem with power line RFI at the moment. Ever since the weather cooled down I've been fighting with S9+40 noise coming from 2 poles adjacent to my lot. I may have to take a break for a few weeks, as there is only so much the K3 NR/NB combo can overcome. Hopefully I can get this resolved by the power company quickly. 73, Morgan NS0R. __ 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 k3...@comcast.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] S9+40 Noise
Even if the law wasn't on your side, it is in the power company's best interest to correct the problem. It is burning power that no customer is paying for, so the power company has to eat the costs. 73 Bill AE6JV On 11/20/14 at 7:58 PM, k3...@comcast.net wrote: There's a lot of that going around. If you can get the pole number, contact the power company and let them know they are having a problem that is interfering with your HF operation. Give them the pole numbers. They may ask how you found which poles. I've been doing this for a number of years. Our local power company only has a few techs to handle an area of about half the state, but they do respond. I would expect they would come out to fix your problem also. Just make sure they know you are a ham operator. --- Bill Frantz|Web security is like medicine - trying to do good for 408-356-8506 |an evolved body of kludges - Mark Miller www.pwpconsult.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
