Re: [Elecraft] [K2] Output power not matching power setting and very unstable between transmissions
Did you check D9 and other components on the RF board that provide the VRFDET signal? How did you check VRFDET, VALC, and VPWR on the control board if the transmit power is unstable? On 10/5/2014 08:28, KY7K wrote: I recently purchased a used K2 (Rev A) from a club that was not working because it had been “hooked up backward”. That is the best anyone can remember as to what happened to the radio ~7 years ago… Currently, the power output as displayed on the radio and on an external power meter is very unstable and does not match the power setting desired. This is not just a little off, I can select 1W on the radio and then hit the tune button 5 times and might get .4W, 6.7W, HI-CUR, 9.0W, 1.2W. This is the QRP K2 with SSB, NB, KIO2 and DSP options. The problem occurs with or without the option boards installed. Background: When I first tested it, it would power on but the only function that was operational was the power control. Every other knob and button was non-functioning as if the cpu was hung up. The radio was not transmitting in this state. I had a old CPU (U6) from my other K2 that I installed as a test and that seemed to fix the problem, at least in receive. I, unfortunately, did not test it in transmit. I ordered a FWK2MCIO kit to get a new cpu and also ordered all the mod kits for the Rev A to Rev B upgrade, once they came in I installed everything and while performing the the calibrations after the upgrade discovered that the transmit power was very unstable between transmissions. Other than the bad U6, the only other issue I found was that the PCB trace from pin 5 of the Mic connector on the front panel board was basically missing, from getting shorted to +12V I assume, it disintegrated when touched... I’ve narrowed the issue down to the control board, since if I swap the control board from my working K2 into the bad radio the power issue disappears. I’ve checked VRFDET, VALC, and VPWR on the control board and they are all OK best I can tell, and I’m now at a loss where to look next. Note: the power level is stable once it settles on some random output power. The power level is random from one transmission to the next. The following links are images showing a tune cycle. The first image shows the full scan with the radio set to ~1W and actually putting out ~.4W. The second image is zoomed in on the start of the cycle. https://www.dropbox.com/s/i64sw2ue2405roe/k2_0_5w_full.png?dl=0 https://www.dropbox.com/s/qe297am756igbd4/k2_0_5w_zoom.png?dl=0 This is with the power set to ~7W and the radio indicating hi-cur, before settling down to ~6.4W https://www.dropbox.com/s/tqxzi3yk13gye4g/k2_hicur_full.png?dl=0 https://www.dropbox.com/s/6qz10478zt66tjd/k2_hicur_zoom.png?dl=0 Steve - KY7K k...@arrl.net Get OUT and play radio! -- 73, Vic, K2VCO/4X6GP 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] [K2] Output power not matching power setting and very unstable between transmissions
Also, what about the power control pot itself? On 10/5/2014 08:36, KY7K wrote: I forgot to mention that all testing is into a known good DL1 dummy load that I’m also using for my external power readings. Any wise insights are most welcome! Steve - KY7K k...@arrl.net Get OUT and play radio! On Oct 4, 2014, at 10:28 PM, KY7K k...@cox.net wrote: I recently purchased a used K2 (Rev A) from a club that was not working because it had been “hooked up backward”. That is the best anyone can remember as to what happened to the radio ~7 years ago… Currently, the power output as displayed on the radio and on an external power meter is very unstable and does not match the power setting desired. This is not just a little off, I can select 1W on the radio and then hit the tune button 5 times and might get .4W, 6.7W, HI-CUR, 9.0W, 1.2W. This is the QRP K2 with SSB, NB, KIO2 and DSP options. The problem occurs with or without the option boards installed. Background: When I first tested it, it would power on but the only function that was operational was the power control. Every other knob and button was non-functioning as if the cpu was hung up. The radio was not transmitting in this state. I had a old CPU (U6) from my other K2 that I installed as a test and that seemed to fix the problem, at least in receive. I, unfortunately, did not test it in transmit. I ordered a FWK2MCIO kit to get a new cpu and also ordered all the mod kits for the Rev A to Rev B upgrade, once they came in I installed everything and while performing the the calibrations after the upgrade discovered that the transmit power was very unstable between transmissions. Other than the bad U6, the only other issue I found was that the PCB trace from pin 5 of the Mic connector on the front panel board was basically missing, from getting shorted to +12V I assume, it disintegrated when touched... I’ve narrowed the issue down to the control board, since if I swap the control board from my working K2 into the bad radio the power issue disappears. I’ve checked VRFDET, VALC, and VPWR on the control board and they are all OK best I can tell, and I’m now at a loss where to look next. Note: the power level is stable once it settles on some random output power. The power level is random from one transmission to the next. The following links are images showing a tune cycle. The first image shows the full scan with the radio set to ~1W and actually putting out ~.4W. The second image is zoomed in on the start of the cycle. https://www.dropbox.com/s/i64sw2ue2405roe/k2_0_5w_full.png?dl=0 https://www.dropbox.com/s/qe297am756igbd4/k2_0_5w_zoom.png?dl=0 This is with the power set to ~7W and the radio indicating hi-cur, before settling down to ~6.4W https://www.dropbox.com/s/tqxzi3yk13gye4g/k2_hicur_full.png?dl=0 https://www.dropbox.com/s/6qz10478zt66tjd/k2_hicur_zoom.png?dl=0 Steve - KY7K k...@arrl.net Get OUT and play radio! -- 73, Vic, K2VCO/4X6GP 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] KX3 Battery Supply Inoperative 42 Percent of the Time...
Phil, I have also experienced the KX3 going dead on fully charged batteries. It seems that the only cure was to open up the KX3 remove and reinstall batteries and also check cables to see that they are fully seated.Then things work again.I have no idea why this should be and thankfully it does not happen often.In my case removing and reinstalling the batteries seems to be a necessity almost as if it was allowing a power off reset. This problem seems to occur after a battery charge cycle.The problem is thankfully rare but it puts a chill through my bones. 73 Doug EI2CN -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: 04 October 2014 23:38 To: elecraft Subject: [Elecraft] KX3 Battery Supply Inoperative 42 Percent of the Time... OK, Here's the thing... My KX3 battery has operated flawlessly ever since I first built the KX3 and put in the battery holder/charger feature. One set of batteries being used in portable QRP ops being discharged and recharged many times. Then, I decided to buy the 2-meter module option and install that. I started the installation which included taking out all 8 batteries, unplugging the battery connector that goes to the other half of the KX3 and so on. I get part way into the installation and discover that I cannot finish the job because inductor L40 which has to move cannot physically move at all. So, I send it to Elecraft, they do the installation, they send the unit back to me and everything is hunky-dory except for the battery facility. These are the symptoms. Brand new batteries installed, and I operate the KX3 with external power and make sure that the batteries are fully charged. The VFO B Display shows BT voltage with a good charged level. I turn the KX3 off, disconnect external power, and go to turn on with battery power. Nothing happens, just as if no batteries installed. I replug external power, turn on KX3 using external power and check out the various battery menu settings and so on. This time, without unplugging external power connector, I merely turn off the external power supply and the KX3 continues operating nicely with battery power. I do a number of tests with CW key down into metered dummy load to check TX and a few other things. I think the problem solved. I run on batteries all afternoon to run them down. Turning on external power I recharge the batteries back up to an operating level. I turn off KX3, disconnect external power, and turn on KX3 and nothing happens just like before. I fiddle with things a bit. I attempt to do what I did before that brought life back to the battery feature but nothing happens. I split open the KX3 and check the power plug. I push in on it a little bit. I put the two halves loosely back together and then do a power on and the KX3 comes alive on batteries. I am thinking that I have a loose connection somewhere, maybe the battery hookup plug that goes across to the other half. Anyone have problems with these connectors? I am wondering if I just give up on the battery thing and use my external Li -ion external batteries from now on. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to turnb...@net1.ie __ 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 -- turning it off
This would happen if pin-8 of the ACC connector is shorted when you hit the power button. The same thing happens when you send the PS0 command. 73/OZ4UN Den 05/10/2014 kl. 02.37 skrev Michael James Hauan a...@hauan.org: Anyone have any ideas why, when I hit the power button to turn off my K3, it doesn’t turn off. All markings disappear but the backlight stays on and hitting the power button thereafter does nothing. I have to resort to pulling the plug. On plugging it back in, the power comes on without hitting the power button. 73! Michael James Hauan, ACØG - a...@hauan.org a...@winlink.org 573-823-7114 (c) __ 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 p...@tele.gl __ 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] Zero-beating on CW
I have never been convinced of being accurate on zero-beat on my K3. With previous radio units, I would zero-beat by matching the tone of the received station with my own keying side-tone. But it does not seem accurate on the K3. So the question: How would I determine that my offset and side tone would match up so that I am really zero-beated when I think I am. Thanks ahead of time. -- 73 de Ted Edwards, W3TB and GØPWW and thinking about operating CW: Do today what others won't, so you can do tomorrow what others can't. __ 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] Zero-beating on CW
Hello Ted, When I need to be on zero beat within one Hz, I always switch on the spot on the K3 and set the received signal to the same volume. Once I hear the combination of both increase and decrease slowly, I know that I am within a Hz. It's also the way I calibrate the K3 against a standard like WWV or the russian station on 9.996 / 14.996 (forgot the callsign). 73 Arie PA3A Ted Edwards W3TB schreef op 5-10-2014 12:44: I have never been convinced of being accurate on zero-beat on my K3. With previous radio units, I would zero-beat by matching the tone of the received station with my own keying side-tone. But it does not seem accurate on the K3. So the question: How would I determine that my offset and side tone would match up so that I am really zero-beated when I think I am. Thanks ahead of time. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Battery Supply Inoperative 42 Percent of the Time...
I've also had a situation where just one of the battery wires came adrift from the plug that comes from the battery pack and goes into the other half of the case. The KX3 behaved very peculiarly for a while until I noticed it and re-soldered (fiddly job). Stephen G4SJP On 5 October 2014 09:27, Doug Turnbull turnb...@net1.ie wrote: Phil, I have also experienced the KX3 going dead on fully charged batteries. It seems that the only cure was to open up the KX3 remove and reinstall batteries and also check cables to see that they are fully seated.Then things work again.I have no idea why this should be and thankfully it does not happen often.In my case removing and reinstalling the batteries seems to be a necessity almost as if it was allowing a power off reset. This problem seems to occur after a battery charge cycle.The problem is thankfully rare but it puts a chill through my bones. 73 Doug EI2CN -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: 04 October 2014 23:38 To: elecraft Subject: [Elecraft] KX3 Battery Supply Inoperative 42 Percent of the Time... OK, Here's the thing... My KX3 battery has operated flawlessly ever since I first built the KX3 and put in the battery holder/charger feature. One set of batteries being used in portable QRP ops being discharged and recharged many times. Then, I decided to buy the 2-meter module option and install that. I started the installation which included taking out all 8 batteries, unplugging the battery connector that goes to the other half of the KX3 and so on. I get part way into the installation and discover that I cannot finish the job because inductor L40 which has to move cannot physically move at all. So, I send it to Elecraft, they do the installation, they send the unit back to me and everything is hunky-dory except for the battery facility. These are the symptoms. Brand new batteries installed, and I operate the KX3 with external power and make sure that the batteries are fully charged. The VFO B Display shows BT voltage with a good charged level. I turn the KX3 off, disconnect external power, and go to turn on with battery power. Nothing happens, just as if no batteries installed. I replug external power, turn on KX3 using external power and check out the various battery menu settings and so on. This time, without unplugging external power connector, I merely turn off the external power supply and the KX3 continues operating nicely with battery power. I do a number of tests with CW key down into metered dummy load to check TX and a few other things. I think the problem solved. I run on batteries all afternoon to run them down. Turning on external power I recharge the batteries back up to an operating level. I turn off KX3, disconnect external power, and turn on KX3 and nothing happens just like before. I fiddle with things a bit. I attempt to do what I did before that brought life back to the battery feature but nothing happens. I split open the KX3 and check the power plug. I push in on it a little bit. I put the two halves loosely back together and then do a power on and the KX3 comes alive on batteries. I am thinking that I have a loose connection somewhere, maybe the battery hookup plug that goes across to the other half. Anyone have problems with these connectors? I am wondering if I just give up on the battery thing and use my external Li -ion external batteries from now on. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to turnb...@net1.ie __ 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 eastbrantw...@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] Zero-beating on CW
Any particular reason to need to zero beat to 1Hz? I find the auto tune function works perfectly well. In fact if I'm one of many stations calling I often offset 40-50Hz so as to be different from the all zero beat mush. Regards, Mike VP8NO On 05/10/2014 07:55, Arie Kleingeld PA3A wrote: Hello Ted, When I need to be on zero beat within one Hz, I always switch on the spot on the K3 and set the received signal to the same volume. Once I hear the combination of both increase and decrease slowly, I know that I am within a Hz. It's also the way I calibrate the K3 against a standard like WWV or the russian station on 9.996 / 14.996 (forgot the callsign). 73 Arie PA3A Ted Edwards W3TB schreef op 5-10-2014 12:44: I have never been convinced of being accurate on zero-beat on my K3. With previous radio units, I would zero-beat by matching the tone of the received station with my own keying side-tone. But it does not seem accurate on the K3. So the question: How would I determine that my offset and side tone would match up so that I am really zero-beated when I think I am. Thanks ahead of time. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Zero-beating on CW
HI, In a pileup, I ALWAYS move off zero beat, so if I transmit, I don't cover the DX station in the event I transmit on top of him/her. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2014-10-05 at 08:49 -0300, Mike Harris wrote: Any particular reason to need to zero beat to 1Hz? I find the auto tune function works perfectly well. In fact if I'm one of many stations calling I often offset 40-50Hz so as to be different from the all zero beat mush. Regards, Mike VP8NO On 05/10/2014 07:55, Arie Kleingeld PA3A wrote: Hello Ted, When I need to be on zero beat within one Hz, I always switch on the spot on the K3 and set the received signal to the same volume. Once I hear the combination of both increase and decrease slowly, I know that I am within a Hz. It's also the way I calibrate the K3 against a standard like WWV or the russian station on 9.996 / 14.996 (forgot the callsign). 73 Arie PA3A Ted Edwards W3TB schreef op 5-10-2014 12:44: I have never been convinced of being accurate on zero-beat on my K3. With previous radio units, I would zero-beat by matching the tone of the received station with my own keying side-tone. But it does not seem accurate on the K3. So the question: How would I determine that my offset and side tone would match up so that I am really zero-beated when I think I am. Thanks ahead of time. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.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] Using a KX3 with WSJT-X DXLAB Commander
Joe, You're probably right ... I'm going to do some rearrangement of the wiring, ensure proper ground, then see what happens. I've also moved back to the release candidate v1.4.0-RC2, as I've been using a local build built from the sources. 73, Neil KB3TVU On 10/05/14 08:15 am, Neil Zampella wrote: Subject: Re: [Elecraft] Using a KX3 with WSJT-X DXLAB Commander From: Joe Subich, W4TV li...@subich.com Date: 10/04/14 07:54 pm To: elecraft@mailman.qth.net I've used WSJT-X with Commander and the K3 and *never* seen a hang in transmit. The K3 and KX3 use the same commands for T/R switching (*ALL* rigs use the same T/R switching commands from WSJT-X when using DXLab Suite Commander - with Commander doing the translation from WSJT-X commands to the rig specific command). I would look carefully for RF issues - when using software commands, it is very easy for RF to scramble the TX OFF serial command. That issue is particularly likely with a continuous carrier mode like JT65/JT9. 73, ... Joe, W4TV On 2014-10-04 7:37 PM, Neil Zampella wrote: Hi all, Is anyone else using the same type of combination of software with the KX3? I'm using the KXUSB cable to control CAT, and an external USB soundcard directly hooked to the KX3. My issue is that I'm seeing some times when the KX3 does switch out of transmit at the end of the JT9 period of 50 seconds.This doesn't happen often, but it has happened the past two nights. One night the KX3 was being used for over an hour and a half, and tonight for less than 10 minutes. The developer and I have been exchanging logs, and have somewhat eliminated WSJT-X as the cause, so we're starting to look at Commander, to see if its the culprit.Having someone else seeing the same issue would assist in tracking down this bug, if indeed its a bug in the software and not a problem with CAT control of the KX3. ... and if I'm the only one seeing this, I need to eliminate any short between the headsets .. hi hi. 73, Neil Z KB3TVU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net __ Elecraft 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] Inscribe
Please remove me from this list, Thankyou. '73 2E0BWQ. Sent from my iPad __ 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 Battery Supply Inoperative 42 Percent of the Time...
Stephen, and Doug: Yes, I suspect the plug to be the culprit here since once I fixed the problem merely by tightening and pushing in on the plug itself. I will take a closer look this afternoon. 73, phil, K7PEH On Oct 5, 2014, at 4:21 AM, Stephen Prior eastbrantw...@gmail.com wrote: I've also had a situation where just one of the battery wires came adrift from the plug that comes from the battery pack and goes into the other half of the case. The KX3 behaved very peculiarly for a while until I noticed it and re-soldered (fiddly job). Stephen G4SJP On 5 October 2014 09:27, Doug Turnbull turnb...@net1.ie wrote: Phil, I have also experienced the KX3 going dead on fully charged batteries. It seems that the only cure was to open up the KX3 remove and reinstall batteries and also check cables to see that they are fully seated.Then things work again.I have no idea why this should be and thankfully it does not happen often.In my case removing and reinstalling the batteries seems to be a necessity almost as if it was allowing a power off reset. This problem seems to occur after a battery charge cycle.The problem is thankfully rare but it puts a chill through my bones. 73 Doug EI2CN -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: 04 October 2014 23:38 To: elecraft Subject: [Elecraft] KX3 Battery Supply Inoperative 42 Percent of the Time... OK, Here's the thing... My KX3 battery has operated flawlessly ever since I first built the KX3 and put in the battery holder/charger feature. One set of batteries being used in portable QRP ops being discharged and recharged many times. Then, I decided to buy the 2-meter module option and install that. I started the installation which included taking out all 8 batteries, unplugging the battery connector that goes to the other half of the KX3 and so on. I get part way into the installation and discover that I cannot finish the job because inductor L40 which has to move cannot physically move at all. So, I send it to Elecraft, they do the installation, they send the unit back to me and everything is hunky-dory except for the battery facility. These are the symptoms. Brand new batteries installed, and I operate the KX3 with external power and make sure that the batteries are fully charged. The VFO B Display shows BT voltage with a good charged level. I turn the KX3 off, disconnect external power, and go to turn on with battery power. Nothing happens, just as if no batteries installed. I replug external power, turn on KX3 using external power and check out the various battery menu settings and so on. This time, without unplugging external power connector, I merely turn off the external power supply and the KX3 continues operating nicely with battery power. I do a number of tests with CW key down into metered dummy load to check TX and a few other things. I think the problem solved. I run on batteries all afternoon to run them down. Turning on external power I recharge the batteries back up to an operating level. I turn off KX3, disconnect external power, and turn on KX3 and nothing happens just like before. I fiddle with things a bit. I attempt to do what I did before that brought life back to the battery feature but nothing happens. I split open the KX3 and check the power plug. I push in on it a little bit. I put the two halves loosely back together and then do a power on and the KX3 comes alive on batteries. I am thinking that I have a loose connection somewhere, maybe the battery hookup plug that goes across to the other half. Anyone have problems with these connectors? I am wondering if I just give up on the battery thing and use my external Li -ion external batteries from now on. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to turnb...@net1.ie __ 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 eastbrantw...@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:
[Elecraft] FS K3/10
For sale K3/10 serial 16xx. $1550 plus shipping. Smoke free environment. I purchased this rig new and it has seen minimal usage. myc...@arrl.net Frankie K4TEN Has the following options: K3/10 K3 10W Xcvr. (Assembled) $1799.95 KBPF3 K3 Gen. Cov. RX Module $169.95 KFL3A-2.8_2.7sw 2.8 for 2.7 kHz swap $129.95 KFL3A-6K K3 6 kHz, 8 pole filter $139.95 KXV3A K3 RX Ant, IF Out Xvrtr Intf. $129.95 $2369.75 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K2] Output power not matching power setting and very unstable between transmissions
Steve, If hooked up backwards means that the DC power was connected with reverse polarity, that will normally cause no harm to the K2 because there is a series reverse voltage protection diode in the input power line. The burned trace on the mic jack pin 5 suggests that something different happened to it. Try replacing D9 with a 1N5711 diode and see what happens. The power output into a good dummy load will normally be within 0.2 watts of the set power if all is working right. You older K2 has a 1N34 diode at D9 and it is not as accurate over the full frequency range as the 1N5711. If you have not done so already, record the menu settings, especially the filter settings and do a Master Reset (hold the 4, 5, and 6 buttons in while powering the K2 on). Then run CAL PLL and restore the menu settings. The fact that the problem goes away if you swap control boards suggests that there may be some problem with the EEPROM contents, and a Master Reset should 'clean it out'. Set CAL CUR to 3.50 instead of 2.50 and see if the HiCur messages go away. If they continue, you may have to replace the PA transistors. Another thing to check is the DC voltage at the base of Q7 and Q8 during a TUNE - it should be in the range of 0.60 to 0.64 volts. If not, replace Q11 and Q13. 73, Don W3FPR On 10/5/2014 1:36 AM, KY7K wrote: I forgot to mention that all testing is into a known good DL1 dummy load that I’m also using for my external power readings. Any wise insights are most welcome! Steve - KY7K k...@arrl.net Get OUT and play radio! On Oct 4, 2014, at 10:28 PM, KY7K k...@cox.net wrote: I recently purchased a used K2 (Rev A) from a club that was not working because it had been “hooked up backward”. That is the best anyone can remember as to what happened to the radio ~7 years ago… Currently, the power output as displayed on the radio and on an external power meter is very unstable and does not match the power setting desired. This is not just a little off, I can select 1W on the radio and then hit the tune button 5 times and might get .4W, 6.7W, HI-CUR, 9.0W, 1.2W. This is the QRP K2 with SSB, NB, KIO2 and DSP options. The problem occurs with or without the option boards installed. Background: When I first tested it, it would power on but the only function that was operational was the power control. Every other knob and button was non-functioning as if the cpu was hung up. The radio was not transmitting in this state. I had a old CPU (U6) from my other K2 that I installed as a test and that seemed to fix the problem, at least in receive. I, unfortunately, did not test it in transmit. I ordered a FWK2MCIO kit to get a new cpu and also ordered all the mod kits for the Rev A to Rev B upgrade, once they came in I installed everything and while performing the the calibrations after the upgrade discovered that the transmit power was very unstable between transmissions. Other than the bad U6, the only other issue I found was that the PCB trace from pin 5 of the Mic connector on the front panel board was basically missing, from getting shorted to +12V I assume, it disintegrated when touched... I’ve narrowed the issue down to the control board, since if I swap the control board from my working K2 into the bad radio the power issue disappears. I’ve checked VRFDET, VALC, and VPWR on the control board and they are all OK best I can tell, and I’m now at a loss where to look next. Note: the power level is stable once it settles on some random output power. The power level is random from one transmission to the next. The following links are images showing a tune cycle. The first image shows the full scan with the radio set to ~1W and actually putting out ~.4W. The second image is zoomed in on the start of the cycle. https://www.dropbox.com/s/i64sw2ue2405roe/k2_0_5w_full.png?dl=0 https://www.dropbox.com/s/qe297am756igbd4/k2_0_5w_zoom.png?dl=0 This is with the power set to ~7W and the radio indicating hi-cur, before settling down to ~6.4W https://www.dropbox.com/s/tqxzi3yk13gye4g/k2_hicur_full.png?dl=0 https://www.dropbox.com/s/6qz10478zt66tjd/k2_hicur_zoom.png?dl=0 Steve - KY7K k...@arrl.net Get OUT and play radio! __ 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 k...@cox.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 w3...@embarqmail.com
Re: [Elecraft] Zero-beating on CW
Ted, Is the value you have set in PITCH the same as the audio frequency you are listening at? If so, the SPOT feature should be quite accurate. Actually, between the CWT indicator and the Auto-Spot feature of the K3, it is easy to get within a Hz or two. Auto-Spot may not work well in very crowded band conditions unless you narrow the filter width. Also, you should be tuned within 20 Hz or less for Auto-Spot to work effectively. If you are matching the tones with your ears, unless you have perfect pitch, adjust the amplitude of the sidetone and the signal to be near equal and listen for the WOW, WOW, WOW tone to slow to zero. That will assure you of zero beat. 73, Don W3FPR On 10/5/2014 6:44 AM, Ted Edwards W3TB wrote: I have never been convinced of being accurate on zero-beat on my K3. With previous radio units, I would zero-beat by matching the tone of the received station with my own keying side-tone. But it does not seem accurate on the K3. So the question: How would I determine that my offset and side tone would match up so that I am really zero-beated when I think I am. Thanks ahead of time. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 -- turning it off
Oops - I meant MONDAY morning. I'm on vacation, and it's easy to lose track of what day of the week it is. 73, matt W6NIA On Sat, 04 Oct 2014 19:05:23 -0600, you wrote: Sounds like the big FET that switches power might have failed closed. Best thing - call Support in the morning and report the symptoms. If this is repeatable, they'll issue an RSA (RMA?) and the factory will fix it for you (free, if under warranty). 73, matt W6NIA On Sat, 4 Oct 2014 19:36:48 -0500, you wrote: Anyone have any ideas why, when I hit the power button to turn off my K3, it doesnt turn off. All markings disappear but the backlight stays on and hitting the power button thereafter does nothing. I have to resort to pulling the plug. On plugging it back in, the power comes on without hitting the power button. 73! Michael James Hauan, ACØG - a...@hauan.org a...@winlink.org 573-823-7114 (c) __ 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 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] Pig Knob
Hi Ted, On the back of the P3 are two 9-pin serial ports, labeled PC and XCVR. You would connected the Knob to the PC port of the P3 and then the XCVR port of the P3 to the K3. The P3 will proxy the serial data between the Knob and the K3. 73, Nick N3WG On Sat, Oct 4, 2014 at 4:00 PM, Dauer, Edward eda...@law.du.edu wrote: I know the Pig Knob has been discussed on this reflector before, but I wanted to post a note about it and he who produces it - Nick, N3WG. I hooked the knob up right out of the box and --- it did nothing, with either my K3 or KX3. Many efforts at redoing (and following Nick¹s excellent You Tube videos) resulted in more nothing. So I sent Nick an e-mail. It turns out that the problem was, to use the euphemism, operator error. I will spare everyone my recounting the embarrassing details. But it is now working exactly as advertised. Most important, Nick responded within twenty minutes to my e-mail, helpfully and with assurances that we¹d get it right. Great service - suitable for those of us accustomed to the same from Elecraft. A question for those who have used the Pig Knob with the K3: can it be connected simultaneously with the P3 using a serial-Y connector from the K3¹s RS-232 port? Anyone experience any problems doing that? I have yet to try to set my own configurations for the device. When I do I will surely have more questions . . . Cheers, Ted, KN1CBR __ 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 nwgar...@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] Zero-beating on CW
Mike, Only when calibrating the K3 freq I tune within one Hz. Performing the Ref-Cal. That's all. 73 Arie PA3A Mike Harris schreef op 5-10-2014 13:49: Any particular reason to need to zero beat to 1Hz? I find the auto tune function works perfectly well. In fact if I'm one of many stations calling I often offset 40-50Hz so as to be different from the all zero beat mush. Regards, __ 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] SSB net announcement
The weekly Elecraft SSB net meets today at 1800Z on 14.3035 MHz. Hope to see you there. 73, Phil, NS7P __ 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] Zero-beating on CW
OK that is a different issue to that which I think many folks understood from your original comment. I don't find zero beating WWV to be a problem when trimming up the TCXO calibration, the wow, wow wow is easy to detect and fine tune. Indeed, it is a regular requirement, not a do once and forget issue, assuming it is ever done in the first instance after a kit build. Regards, Mike VP8NO On 05/10/2014 12:54, Arie Kleingeld PA3A wrote: Mike, Only when calibrating the K3 freq I tune within one Hz. Performing the Ref-Cal. That's all. 73 Arie PA3A Mike Harris schreef op 5-10-2014 13:49: Any particular reason to need to zero beat to 1Hz? I find the auto tune function works perfectly well. In fact if I'm one of many stations calling I often offset 40-50Hz so as to be different from the all zero beat mush. Regards, __ 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 HI RFI NO Power output. ATU.
One should NEVER try to get a tuner to get a match with a load when you are running high power, i.e., your 100 watts. The quickest way to blow out your PIN diodes (or any T/R switching diode) is to subject them to the very high reverse voltage when you have a bad match. In all likelihood, your antenna switching diodes are blown. Good luck and 73, Tom - W4BQF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Hugh Valentine Sent: Sunday, October 5, 2014 9:50 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 HI RFI NO Power output. ATU. Anybody Help??? Problem originated on 6M(affects all bands) when ATU was being used to Tweak SWR from 2.4 to 1.0:1. ATU constantly moved up and down tuning, never resting on 1.0:1Power output was intermittent(100W) would go to zero then back to 100 as ATU was looking for match. Then, HI SWR, RFI scrolls across screen as no power is coming out of K3. Affects Ant 1 and Ant 2 SO239s on back of chassis. Affects with RX antenna unplugged. Any Band, any Mode. Either VFO A or B. Run both w/Antennas or Dummy Load. Same result. Finally, HI SWR, HI Cur, RFI scrolls across screen after power goes above 12W.(Never shows ANY power on the LED screen, only one Bar each time I transmit. Uploaded new Firmware and reset K3. On all bands...with or without ATU(eventually uninstalled it) on any antenna or on Dummy Load, Rig shows Zero Power output as I go from 0-12.5 W then at any power over 12 Watts, the RX makes a variable warbling noise and normal receive is bypassed. After a few se conds, the RX may come back on. I just installed a K9AY RX system not too far from XMIT ant. But have been using it all bands no problem for 2 months. ATU always has difficulties matching low SWR on 160 and 6M. Any suggestions as to what is gong on?Anyone experience this before? 73ValN4RJ The #1 Worst Carb Ever? Click to Learn #1 Carb that Kills Your Blood Sugar #40;Don#39;t Eat This!#41; http://thirdpartyoffers.juno.com/TGL3141/54314ce51d0674ce51596st01vuc __ 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 alderm...@windstream.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
[Elecraft] Elecraft CW Net Announcement
Good Morning, After a pleasant week of wood processing my hands are tired. Hopefully a few aspirin an hour before each net will help alleviate the pain. Please forgive any sending errors I may have. Please join us this afternoon and evening. 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7045 kHz at 0100z Monday (6 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
[Elecraft] Kat100
Static got the diodes in the k2 100watt amp. Could they also get the diodes in the kat100. If the kat100 d1 I d2 blow will the tuner still try to tune only not arrive at a low swr? __ 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] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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] Kat100
Yes, the KAt100will still try to tune. The SWR it reports will be woefully inaccurate, and is likely a 'crazy' reading. Check the diodes with an ohmmeter, or alternately measure the resistance between U5 pin 3 and ground, and also U5 pin 5 and ground. Both should measure between 40k and 50k if the diodes are good and the forward and reverse pots are adjusted anywhere near correct. Don't forget to check the nulling (or balance) of the capacitor and the calibration of the wattmeter for forward power and reverse power as instructed in the manual after replacing the diodes. 73, Don W3FPR On 10/5/2014 3:48 PM, d...@dpomeroy.com wrote: Static got the diodes in the k2 100watt amp. Could they also get the diodes in the kat100. If the kat100 d1 I d2 blow will the tuner still try to tune only not arrive at a low swr? __ 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] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
Brian, If it goes away when you unplug the line from the RR box to the K3/0, then -- That sounds suspiciously like a Remote Rig problem. I would recommend contacting the support folks at Remote Rig for ideas on the cause and solution. 73, Don W3FPR On 10/5/2014 5:36 PM, Brian F. Wruble wrote: If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. __ 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 Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
Hi Brian, I have never heard anybody complaining about my signal having a ticking noise. But, when I power down the K3/0 mini I hear it, too, and quite loud. It goes away as soon as I disconnect my mic from the mini! No matter if using the front socket or the 3,5 mm socket. As soon as a mic is plugged in and the mini is turned off there's ticking. Must be something in the mini itself (or the mini in conjunction the the RR controller) as I did not have it when I still had the old PCBs inside (before the swap against the new ones with a display readable when tilted). Can you confirm the ticking goes away in your setup when you un-plug the mic? That might give Elecraft a hint for trouble shooting. Tnx 73, Olli - DH8BQA Contest, DX radio projects: http://www.dh8bqa.de Am 05.10.2014 23:36, schrieb Brian F. Wruble: Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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 dro...@necg.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
Re: [Elecraft] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
USB or serial port polling? Try a different adapter or one that uses an optoisolater Craig Buck On Oct 5, 2014, at 5:36 PM, Brian F. Wruble bwru...@gmail.com wrote: Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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 k...@aol.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 Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
It's the K3 Clock - 73 Ken K5DNL On Sunday, October 5, 2014 5:19 PM, K4ia via Elecraft elecraft@mailman.qth.net wrote: USB or serial port polling? Try a different adapter or one that uses an optoisolater Craig Buck On Oct 5, 2014, at 5:36 PM, Brian F. Wruble bwru...@gmail.com wrote: Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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 k...@aol.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 kwrober...@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
Re: [Elecraft] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
I doubt there's a clock in the K3/0 mini ... 73, Olli Contest, DX radio projects: http://www.dh8bqa.de Am 06.10.2014 00:26, schrieb Ken Roberson via Elecraft: It's the K3 Clock - 73 Ken K5DNL On Sunday, October 5, 2014 5:19 PM, K4ia via Elecraft elecraft@mailman.qth.net wrote: USB or serial port polling? Try a different adapter or one that uses an optoisolater Craig Buck On Oct 5, 2014, at 5:36 PM, Brian F. Wruble bwru...@gmail.com wrote: Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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 k...@aol.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 kwrober...@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 dro...@necg.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
Re: [Elecraft] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.
No, mine persists with mike unplugged. The only thing that kills it is unplugging the TTL plug on the front of the Remote Rig. Brian F. Wruble, C.F.A. From my iPad On Oct 5, 2014, at 6:15 PM, Oliver Dröse dro...@necg.de wrote: Hi Brian, I have never heard anybody complaining about my signal having a ticking noise. But, when I power down the K3/0 mini I hear it, too, and quite loud. It goes away as soon as I disconnect my mic from the mini! No matter if using the front socket or the 3,5 mm socket. As soon as a mic is plugged in and the mini is turned off there's ticking. Must be something in the mini itself (or the mini in conjunction the the RR controller) as I did not have it when I still had the old PCBs inside (before the swap against the new ones with a display readable when tilted). Can you confirm the ticking goes away in your setup when you un-plug the mic? That might give Elecraft a hint for trouble shooting. Tnx 73, Olli - DH8BQA Contest, DX radio projects: http://www.dh8bqa.de Am 05.10.2014 23:36, schrieb Brian F. Wruble: Hi All: The symptom I am describing persists despite changing routers, internet systems, and cities. In a QSO this morning, the other parties reported a ticking sound on my transmitted signal --- faint but noticeable --- and I could also hear it in XMIT Monitor. I was operating my remote gear as a test --- in the same room as the K3, and on the same LAN. I have now set myself up 110 miles away, and the sound persists. I am able to work others, get good signal reports, but I can hear the tick tick tick, about 2 per second. In testing, I find the sound is there even if I power down the gear --- the radio and the control end. It persists if I remove 12VDC from the K3/0 mini. Also if I remove the wifi module from the RemoteRig control box. If I remove power from the RemoteRig, it goes away. With power to the RR, the ticking goes away if I unplug the TTL line from the K3/0 mini. Unplugging the other lines makes no difference, though it becomes fainter if I unplug Aux/Mic. It persists if I remove the ethernet cable connecting the RemoteRig to my router. It persists if I unplug the USB line from the RemoteRig to my PC. This symptom appeared after a good period of time when everything worked. And all functionality is still there --- just this maddening tick tick tick --- like something from Edgar Allan Poe. All ideas gratefully accepted. 73 de Brian W3BW *Brian F. Wruble, C.F.A. __ 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 dro...@necg.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 bwru...@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] [K2] Output power not matching power setting and very unstable between transmissions
Don, Thank you for your recommendations. D9 is a 1N5711 and checks OK. A full reset made no difference. Setting CAL CUR to 3.5 reduces the frequency of the HI-CUR messages, however with the power control maxed it will still show up sometimes. Note that when the HI-CUR occurs it is only for a second, after which the power drops down to some random stable level. Base of Q7 and Q8 are between .60 and .64 volts While adjusting the power control with the radio in receive the power shown on the display changes very smoothly as it should. However, if the power control is adjusted while transmitting the power shown on the LCD display and the LED bar graph jumps all over the place. The bar graph does show that the power is increasing and decreasing overall as it should, what I mean by that is the bar graph shows 4-5 bars of “noise” while adjusting the power in transmit, but the overall direction of the “noise” goes up or down in the correct direction if you were to average the “noise”. Another test I made, however I’m not sure it is valid, was to control VPWR manually by lifting R22 where is meets C45 and inserting a control voltage on the lifted end of R22. In this mode the power is stable and varies smoothly as the external control voltage is varied. The power output is also stable from tune cycle to tune cycle in this test. I question the validity of this test because VPWR and VALC are already setup and stable prior to transmitting, unlike they normally would. Steve - KY7K k...@arrl.net Get OUT and play radio! On Oct 5, 2014, at 6:35 AM, Don Wilhelm w3...@embarqmail.com wrote: Steve, If hooked up backwards means that the DC power was connected with reverse polarity, that will normally cause no harm to the K2 because there is a series reverse voltage protection diode in the input power line. The burned trace on the mic jack pin 5 suggests that something different happened to it. Try replacing D9 with a 1N5711 diode and see what happens. The power output into a good dummy load will normally be within 0.2 watts of the set power if all is working right. You older K2 has a 1N34 diode at D9 and it is not as accurate over the full frequency range as the 1N5711. If you have not done so already, record the menu settings, especially the filter settings and do a Master Reset (hold the 4, 5, and 6 buttons in while powering the K2 on). Then run CAL PLL and restore the menu settings. The fact that the problem goes away if you swap control boards suggests that there may be some problem with the EEPROM contents, and a Master Reset should 'clean it out'. Set CAL CUR to 3.50 instead of 2.50 and see if the HiCur messages go away. If they continue, you may have to replace the PA transistors. Another thing to check is the DC voltage at the base of Q7 and Q8 during a TUNE - it should be in the range of 0.60 to 0.64 volts. If not, replace Q11 and Q13. 73, Don W3FPR On 10/5/2014 1:36 AM, KY7K wrote: I forgot to mention that all testing is into a known good DL1 dummy load that I’m also using for my external power readings. Any wise insights are most welcome! Steve - KY7K k...@arrl.net Get OUT and play radio! On Oct 4, 2014, at 10:28 PM, KY7K k...@cox.net wrote: I recently purchased a used K2 (Rev A) from a club that was not working because it had been “hooked up backward”. That is the best anyone can remember as to what happened to the radio ~7 years ago… Currently, the power output as displayed on the radio and on an external power meter is very unstable and does not match the power setting desired. This is not just a little off, I can select 1W on the radio and then hit the tune button 5 times and might get .4W, 6.7W, HI-CUR, 9.0W, 1.2W. This is the QRP K2 with SSB, NB, KIO2 and DSP options. The problem occurs with or without the option boards installed. Background: When I first tested it, it would power on but the only function that was operational was the power control. Every other knob and button was non-functioning as if the cpu was hung up. The radio was not transmitting in this state. I had a old CPU (U6) from my other K2 that I installed as a test and that seemed to fix the problem, at least in receive. I, unfortunately, did not test it in transmit. I ordered a FWK2MCIO kit to get a new cpu and also ordered all the mod kits for the Rev A to Rev B upgrade, once they came in I installed everything and while performing the the calibrations after the upgrade discovered that the transmit power was very unstable between transmissions. Other than the bad U6, the only other issue I found was that the PCB trace from pin 5 of the Mic connector on the front panel board was basically missing, from getting shorted to +12V I assume, it disintegrated when touched... I’ve narrowed the issue down to the control board, since if I swap the control board from my working K2 into the bad radio the power issue
