Re: [Elecraft] Not seeing my messages ???
Thanks to Keith and Grant, it made me dig into the depths of Gmail. I enabled viewing of the Spam folder, off by default it seems, and set a filter to be sure anything from the reflector or me is not sent to the spam folder. Hopefully I will see this one back in due course. Thanks Martin, HS0ZED On 29/09/2019 09:58, Keith N6JPA wrote: Have you checked your junk or spam or trash folder on your e-mail server account? On 9/28/19 6:06 PM, Martin Sole wrote: Hi, I checked my mailman settings for this list and have enabled the option *Receive your own posts to the list?* Despite this I do not receive my own messages. Have I missed a setting elsewhere? It only happens on this list. Thanks Martin, HS0ZED __ 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 n6jp...@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
[Elecraft] K3 LPA failure, again
Hi, So I had some success in fixing this and thought I would write it up here briefly for future reference. Short version C6 on the K3REF module had become a 12 ohm resistor. Longer version Finding the 7T line only going to 3.5 volts or so was suspicious. Measuring the resistance to ground of that line showed about 20 ohms where the 7 volts is generated at U11 on the RF board, very suspicious. The first step then was to remove any removable item that has a connection to the 7T line. That's most modules in the K3. Checking the resistance of the 7T line each time I removed a plug in module showed the fault to be somewhere on the K3REF module. The 7T line on this board goes to Q3 via R16, R8 and R9 and also to Q2 and U3 via L5. Measuring either side of L5 showed lower resistance on the Q2 and U3 side, now around 12 ohms as opposed to 14 or so at pin 3 of P75. Focus then was directed at Q2 and U3 as likely culprits being active devices likely more prone to failure but removing Q2 showed no change nor did very carefully lifting pin8 of U3 and confirming no connection to L5. That left C6 as the remaining component on that line and its removal restored a much healthier 2.7k resistance to ground on that line as formed by R16, R8 and R9 around Q3 noted above. I don't have any of the microscopic 0.1uF capacitors used in this location, are they 0402? but I have a good selection of 1206 parts and being smaller than the chokes on this board I considered it a suitable change. The board mounts very close to the chassis so size is critical. All restored and the rig is back to normal working order. I don't know if these capacitors are prone generally to such failures but at least it was on a plug in board so easy to narrow down. So that was a fun Saturday afternoon for an hour or so, hopefully the radio will keep on working well now. Martin, HS0ZED __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft CW Net Announcement
Good Evening, The seasons are progressing rapidly. Only a few days into autumn with frost a day away. Even though I have a few grasshopper tendencies mostly I'm an ant. Multiple piles of wood just need to get to the house. When the frost knocks down most of the ferns I can find them. Solar flux has been down but currently we are in the middle of a stream of ions. A steady roar of space noise, a few whistlers, and plenty of QSB. What's not to love? Makes copy more interesting. Please join us on: 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7047 kHz at z Monday (5 PM PDT Sunday) 73, Kevin. KD5ONS _ __ 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] Not seeing my messages ???
Have you checked your junk or spam or trash folder on your e-mail server account? On 9/28/19 6:06 PM, Martin Sole wrote: Hi, I checked my mailman settings for this list and have enabled the option *Receive your own posts to the list?* Despite this I do not receive my own messages. Have I missed a setting elsewhere? It only happens on this list. Thanks Martin, HS0ZED __ 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 n6jp...@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] Not seeing my messages ???
i have the same problem. I’ve tried several times to reset the parameter for the list, but I never see my own posts. Have to check the mailman archive if I want to make sure a post actually got through .. Maybe it’s a moderator level setting, or just a bug .. Grant NQ5T KX3 (8342)/KXPA100 > On Sep 28, 2019, at 9:06 PM, Martin Sole wrote: > > Hi, > > I checked my mailman settings for this list and have enabled the option > > *Receive your own posts to the list?* > > Despite this I do not receive my own messages. Have I missed a setting > elsewhere? It only happens on this list. > > > Thanks > Martin, HS0ZED > __ 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] Not seeing my messages ???
Hi, I checked my mailman settings for this list and have enabled the option *Receive your own posts to the list?* Despite this I do not receive my own messages. Have I missed a setting elsewhere? It only happens on this list. Thanks Martin, HS0ZED __ 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] Audio Hum in TX Data Mode
I had a similar issue with a TenTec power supply next to a TenTec transceiver. The solution was to move the power supply. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Sep 28, 2019, at 12:35 PM, RIchard Williams via Elecraft > wrote: > > Conrad, > I had the same problem a few years ago when I placed my Alpha 9500 on the > left side of my K3S. After much perturbation, I finally figured what the > issue was. The power supply for the Alpha 9500 is on the right side of the > Amp, and the isolation transformers for the line in and line out are on the > left side of the K3 (K3S). When in such proximity, the magnetic fields > interact, and induce hum when using line in on the Elecraft radios. My > solution ended up being easy. The transformer in my Alpha was an old type, > and I was able to switch it out with the new model with (I think) is a > toroidal core, and that solved the problem. > Dick, K8ZTT > > > > > > > > > > I put up a new 6m antenna mainly for EME and I was so looking forward to > using my K3S. The RX is great, I run it in parallel with 2 other receivers > and it works very well on EME. However try as I might I cannot get rid of > some quite bad hum on the TX Audio. I am using USB and before you ask yes I > have got a low impedance ground from the PC to the K3S although removing it > makes absolutely no difference. What did make a difference was moving the > radio away from sources of magnetic fields such as monitors. However I > cannot get rid of it completely. It also increases or at least changes when > I put my hands on the radio. > > I have a few other radios located nearby and close to a monitor, pc or PSU > and they do not suffer from this at all. Is this a common problem, is it a > bad ground in the audio path internally or magnetic coupling into an audio > transformer? > > It is completely impractical for me to move my radios 10 feet from any > magnetic fields. Short of wrapping the radio in mu metal I really do not > seem to be able to fix this. > > Any ideas? I have read and understood and followed Jim K9YC's advice and > this works perfectly for my other 3 radios. I am really at a loss. > > 73 > > Conrad PA5Y > __ > 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 ro...@mulzer.de > > __ > 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 richarddw1...@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 c-haw...@illinois.edu __ 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] KXBT2 Battery Connector
Could someone tell me the correct size of the coaxial power plug on the KXBT2 battery? The KX2 manual indicates the plug is a Switchcraft #S760 (2.1mm aperture, 5.5mm diameter.) I bought some genuine Switchcraft parts and they will plug into the sockets on the radio itself but they do not fit into the female coaxial connector on the Elecraft supplied battery charger. TIA, Tim N9PUZ __ 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] Looking for KXV3
Hi elecraft lovers! Does anyone has a KXV3 for sale? 73! Ilya R3XA __ 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] Static discharge
Christmas Day 1967. Snow falling heavily. I had a 2 element Cubical Quad at 50 feet. Separate feed lines for 3 bands. I heard a loud CRACK. I kept occurring. Like an ignorant operator I had not grounded the unused feed lines. I finally realized that the coax was arcing at the PL 259. I grabbed it with my hands. I won’t do that again. Fifty + years ago I was still learning. I continue to learn from my mistakes 73 Jim W9VNE/VA3VNE Sent from my iPhone __ 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] Audio Hum in TX Data Mode
Their isolators built in the K3 on the LineIn/LineOut lines. And there is no “tx DATA” mode. The “tx” is indicates which VFO is used for transmit with an arrow above (A) or below (B). Sent from my iPhone ...nr4c. bill > On Sep 27, 2019, at 8:25 PM, Jim Miller wrote: > > Do you hear the human SSB also? > > >> On Sep 27, 2019, at 8:20 PM, Bill Johnson wrote: >> > > You can buy an audio isolator cable on line to remove the ground loop > issues. Just search the topic for devices. I believe I used Amazon. > > Bill > 920-421-1172 > > > From: elecraft-boun...@mailman.qth.net on > behalf of Conrad PA5Y > Sent: Friday, September 27, 2019 4:26:55 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] Audio Hum in TX Data Mode > > I put up a new 6m antenna mainly for EME and I was so looking forward to > using my K3S. The RX is great, I run it in parallel with 2 other receivers > and it works very well on EME. However try as I might I cannot get rid of > some quite bad hum on the TX Audio. I am using USB and before you ask yes I > have got a low impedance ground from the PC to the K3S although removing it > makes absolutely no difference. What did make a difference was moving the > radio away from sources of magnetic fields such as monitors. However I cannot > get rid of it completely. It also increases or at least changes when I put my > hands on the radio. > > I have a few other radios located nearby and close to a monitor, pc or PSU > and they do not suffer from this at all. Is this a common problem, is it a > bad ground in the audio path internally or magnetic coupling into an audio > transformer? > > It is completely impractical for me to move my radios 10 feet from any > magnetic fields. Short of wrapping the radio in mu metal I really do not seem > to be able to fix this. > > Any ideas? I have read and understood and followed Jim K9YC's advice and this > works perfectly for my other 3 radios. I am really at a loss. > > 73 > > Conrad PA5Y > __ > 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 k9...@live.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 n...@widomaker.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] Audio Hum in TX Data Mode
Conrad, I had the same problem a few years ago when I placed my Alpha 9500 on the left side of my K3S. After much perturbation, I finally figured what the issue was. The power supply for the Alpha 9500 is on the right side of the Amp, and the isolation transformers for the line in and line out are on the left side of the K3 (K3S). When in such proximity, the magnetic fields interact, and induce hum when using line in on the Elecraft radios. My solution ended up being easy. The transformer in my Alpha was an old type, and I was able to switch it out with the new model with (I think) is a toroidal core, and that solved the problem. Dick, K8ZTT I put up a new 6m antenna mainly for EME and I was so looking forward to using my K3S. The RX is great, I run it in parallel with 2 other receivers and it works very well on EME. However try as I might I cannot get rid of some quite bad hum on the TX Audio. I am using USB and before you ask yes I have got a low impedance ground from the PC to the K3S although removing it makes absolutely no difference. What did make a difference was moving the radio away from sources of magnetic fields such as monitors. However I cannot get rid of it completely. It also increases or at least changes when I put my hands on the radio. I have a few other radios located nearby and close to a monitor, pc or PSU and they do not suffer from this at all. Is this a common problem, is it a bad ground in the audio path internally or magnetic coupling into an audio transformer? It is completely impractical for me to move my radios 10 feet from any magnetic fields. Short of wrapping the radio in mu metal I really do not seem to be able to fix this. Any ideas? I have read and understood and followed Jim K9YC's advice and this works perfectly for my other 3 radios. I am really at a loss. 73 Conrad PA5Y __ 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 ro...@mulzer.de __ 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 richarddw1...@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] September 22, Elecraft ssb net
Here is the list of stations checking in to the SSB net for Sunday, September 22, 2019. The net is open to all stations and meets at 1800Z at 14.303.5. The time stays at 1800Z so the net meets an hour earlier after daylight savings time ends. Thanks again to the stations who help with relaying. Since propagation is spotty these days we try to have stations in different parts of the country to help pick up stations that I do not hear. At times we are unable to hear some stations so just keep trying if you have been unable to reach one of us. Elecraft SSB Net 9-22-19 WB9JNZ Eric IL K3 4017 Net Control W1NGA AL CO K3 5765 K1NW Brian RI K3 4974 Relay Station KC9USC Robert IL KX3 4460 K8NU/4 Carl OH TS590 via KF4LZA N6PGQ Bob CA K3 5891 KO5V Jim NM K2/100 7255 NC0JW Jim CO KX3 1356 Relay station W4DML Doug TN K3 6433 W4JSH Jeff TN K3 2378 WM6P Steve GA K3S 11453 KE0GUW Troy CO Yaesu 450D N4NRW Roger SC K3 1318 Relay station K6VWE Stan MI K3 650 K4PMI Mike VA K3S 11414 NS7P Phil OR K3 1826 N7BDL Terry AZ IC7100 KC7WFD Tracy WA KX3 4176 W7REK Glenn AZ K3 2843 AE1E Ken NM K3S 11611 K7JG John WA KX3 3519 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 LPA failure, again
Hi, Might have been a bad choice of title! Indications are the 7T transmit bias line is faulty somewhere. 7R is normal, 6.8-6.9 volts, but the transmit 7T line is very low, around 3.8 volts. I suspect this is the cause of no power out anywhere as the signal switching is not working. The 7T line reads a mere 20 ohms to ground so I suspect a failure somewhere in what hangs from that line. I guess I will just have to work through it. Maybe there are some known weak points someone might mention. Martin, HS0ZED __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 LPA failure, again
Hi, About 18 months ago both Q4 and Q5 the output devices in the LPA of my early K3 failed. I suspect this was partly my fault, trying to drive an amp known to take off and be generally unstable. I replaced the transistors and though at the time I had no hard and fast bias setting data the radio had worked fine until just now. Seemingly out of the blue and having made several short transmissions it just coughed on 30m and died. No output of any sort from 0-110 watts and no indication that any power is being produced anywhere. And unlike last time there is no output at the XVTR out socket either. I think I have this enabled correctly with XV1 on, XV1RF 144, XV1 IF 28 and the power set to L1.5. With the band set to 144 I would expect to see adjustable power up to 1.5dBm at the XVTR out socket but nothing doing on the direct input of my LP100A. Is this a known issue? I did measure the fets. Several hundred ohms drain to source and several kilohms gate to source in circuit. 13.8 volts on the drains and a couple of volts bias when keyed. So it seem more like a lack of RF drive. Where next? Martin, HS0ZED __ 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] Audio Hum in TX Data Mode
Good morning Conrad, do you have the possibility to check the signal on an SDR or spectrum analyzer with sufficient resolution. That might be helpful to determine the origin of the noise and hence countermeasures. 73/Roger, DL5RBW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Conrad PA5Y Sent: Friday, September 27, 2019 11:27 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Audio Hum in TX Data Mode I put up a new 6m antenna mainly for EME and I was so looking forward to using my K3S. The RX is great, I run it in parallel with 2 other receivers and it works very well on EME. However try as I might I cannot get rid of some quite bad hum on the TX Audio. I am using USB and before you ask yes I have got a low impedance ground from the PC to the K3S although removing it makes absolutely no difference. What did make a difference was moving the radio away from sources of magnetic fields such as monitors. However I cannot get rid of it completely. It also increases or at least changes when I put my hands on the radio. I have a few other radios located nearby and close to a monitor, pc or PSU and they do not suffer from this at all. Is this a common problem, is it a bad ground in the audio path internally or magnetic coupling into an audio transformer? It is completely impractical for me to move my radios 10 feet from any magnetic fields. Short of wrapping the radio in mu metal I really do not seem to be able to fix this. Any ideas? I have read and understood and followed Jim K9YC's advice and this works perfectly for my other 3 radios. I am really at a loss. 73 Conrad PA5Y __ 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 ro...@mulzer.de __ 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
