Re: [Elecraft] Weird EMI issue... part deux
James, I am getting a much lower level of noise than you. With no antenna and the preamp off, the first bar on the S-meter barely flickers. When I spin the dial quickly I can get as high as S3 noise. The noise disappears below 4.930 and above 5.110. I only hear the noise in the main receiver. I can spin the dial on the sub-receiver, if turned on and also hear the noise in the main receiver. There is never noise in the sub-receiver. With a dummy load on ANT 1, ANT 2, AUX and RCV inputs there is noise in the main receiver when spinning the dial with any antenna port selected. Once I have an antenna hooked up and the background noise is at least S3 on that antenna port I can't hear the noise when spinning the dial. Yes, you can forward this info to whomever you want. 73, N2TK/NP2, Tony -Original Message- From: James Sarte [mailto:kc2...@gmail.com] Sent: Sunday, March 01, 2009 10:06 PM To: 'N2TK' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux Hi Tony, Thanks for taking the time to do that test for me. I do hear the noise with an antenna connected, but the antenna is not tuned for 5MHz so the noise floor is pretty low. I do not hear this noise through the sub receiver if I use the AUX BNC connector, but I will hear it through the sub receiver if it's using the same antenna as the main receiver. Otherwise, everything else you've described is what I'm experiencing. This noise is around an S5 to maybe S7 on the meter when I move the VFO knob. As you also discovered, turning the preamp on raises the noise floor masking most of the EMI. It's not very noticeable when the preamp is on. Would it be OK to forward this email to Elecraft tech support? I've been maintaining a running dialogue with them regarding this issue, and your findings may help them to develop a solution. Thanks again and 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 8:32 PM To: 'amstel78' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I was using SSB settings and had an antenna hooked up. I did not hear any noise I put a dummy load on the antenna jack and used AM mode. I can hear noise as I turn the dial. I can just barely hear the noise when I turn on the preamp. And with any antenna hooked up I do not hear any noise at all as I turn the dial. Jim, do you hear this noise with an antenna hooked up? I do not, so as far as I am concerned it does not exist. However if you hear this noise when you have an antenna hooked up you need to talk some more to Elecraft support. 73, N2TK/NP2, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
I have the same. Also on a number of other places between 0.5 - 30 MHz. Was there any response from Elecraft on this? / SM2EKM N2TK wrote: James, I am getting a much lower level of noise than you. With no antenna and the preamp off, the first bar on the S-meter barely flickers. When I spin the dial quickly I can get as high as S3 noise. The noise disappears below 4.930 and above 5.110. I only hear the noise in the main receiver. I can spin the dial on the sub-receiver, if turned on and also hear the noise in the main receiver. There is never noise in the sub-receiver. With a dummy load on ANT 1, ANT 2, AUX and RCV inputs there is noise in the main receiver when spinning the dial with any antenna port selected. Once I have an antenna hooked up and the background noise is at least S3 on that antenna port I can't hear the noise when spinning the dial. Yes, you can forward this info to whomever you want. 73, N2TK/NP2, Tony -Original Message- From: James Sarte [mailto:kc2...@gmail.com] Sent: Sunday, March 01, 2009 10:06 PM To: 'N2TK' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux Hi Tony, Thanks for taking the time to do that test for me. I do hear the noise with an antenna connected, but the antenna is not tuned for 5MHz so the noise floor is pretty low. I do not hear this noise through the sub receiver if I use the AUX BNC connector, but I will hear it through the sub receiver if it's using the same antenna as the main receiver. Otherwise, everything else you've described is what I'm experiencing. This noise is around an S5 to maybe S7 on the meter when I move the VFO knob. As you also discovered, turning the preamp on raises the noise floor masking most of the EMI. It's not very noticeable when the preamp is on. Would it be OK to forward this email to Elecraft tech support? I've been maintaining a running dialogue with them regarding this issue, and your findings may help them to develop a solution. Thanks again and 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 8:32 PM To: 'amstel78' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I was using SSB settings and had an antenna hooked up. I did not hear any noise I put a dummy load on the antenna jack and used AM mode. I can hear noise as I turn the dial. I can just barely hear the noise when I turn on the preamp. And with any antenna hooked up I do not hear any noise at all as I turn the dial. Jim, do you hear this noise with an antenna hooked up? I do not, so as far as I am concerned it does not exist. However if you hear this noise when you have an antenna hooked up you need to talk some more to Elecraft support. 73, N2TK/NP2, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
I was able to reproduce the noise that James is hearing on my #1672 K3. In my radio it never reaches S7, but I don't have the KBPF3 option. Here, the RIT and XIT settings do not affect the noise. It is mostly between 4.9 and 5.1 MHz as stated by W4TV. I never would have noticed this without James' post, and I am not concerned, but then, I don't have the general receive capability anyway. Steve N9SZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
I had the encoder noise problem on 6M. It happened when I had upgraded the software (don't remember the version). I reloaded the software and the problem went away. It has been fine since. N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Sarte Sent: Saturday, February 28, 2009 11:37 PM To: 'Gregg' Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Weird EMI issue... part deux Hello Gregg, If these are indeed pulses generated by the encoders, would replacing them solve the issue, or is this a design problem? Could this noise be masked out in firmware, or is it a hardware issue that can't be solved via software? I do recall hearing about some people having similar problems with their rigs on 6 meters. In my case, 6m is quiet with no EMI noise. What's troubling me now is that some people say this is normal, while others like the good folk over at Elecraft tech support cannot replicate this issue on their K3's. 73, James KC2UEE -Original Message- From: Gregg [mailto:w6...@bellsouth.net] Sent: Saturday, February 28, 2009 5:55 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux James: I suspect that what you are hearing is an artifact of the pulses generated by the tuning encoder. These pulses are audible on some K3s on 6 meters. The fact that they are not as loud with the pre-amp on is most likely due to an increase in the noise floor when the pre-amp is activated that somewhat masks the pulses. Gregg W6IZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hi Tony, What software are you presently running? I fortunately never had this VFO encoder noise at 6m, but it is very noticeable around 5 MHz. I'm using 2.96 beta. 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 9:13 AM To: 'James Sarte'; 'Gregg' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I had the encoder noise problem on 6M. It happened when I had upgraded the software (don't remember the version). I reloaded the software and the problem went away. It has been fine since. N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hi Tony, Interesting... what settings did you have the K3 set too when you did the test? Would it be possible for you to try without any antenna connected, and have the K3 set to AM? For me, it seems to be loudest on AM mode and also when the preamp is turned off. In the absence of any signal entering the receiver is when this noise is loudest. I've also tried reloading the software several times, from 2.78 to 2.82 and now 2.96 and haven't noticed any difference. If it is encoder pulses or something the synthesizer is doing around 5 MHz, then why can't other people recreate my problem... or why does it differ from rig to rig?? 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 1:43 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux Just checked. No added noise when tuning around 5MHZ. 73, N2TK/NP2, Tony #311 -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 1:36 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux Hi James, Just checked. I am using 2.82. Guess I got behind on the upgrades. The only thing I do around 5MHZ is 60M and these channels are in memory. So I would not be tuning around 5MHZ to check for this problem. Will try tuning around 5 later today and will let you know if I have this problem. I assume you tried reloading the firmware. 73, N2TK/NP2, Tony From: James Sarte [mailto:kc2...@gmail.com] Sent: Sunday, March 01, 2009 1:22 PM To: 'N2TK' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
I was using SSB settings and had an antenna hooked up. I did not hear any noise I put a dummy load on the antenna jack and used AM mode. I can hear noise as I turn the dial. I can just barely hear the noise when I turn on the preamp. And with any antenna hooked up I do not hear any noise at all as I turn the dial. Jim, do you hear this noise with an antenna hooked up? I do not, so as far as I am concerned it does not exist. However if you hear this noise when you have an antenna hooked up you need to talk some more to Elecraft support. 73, N2TK/NP2, Tony -Original Message- From: amstel78 [mailto:amste...@gmail.com] Sent: Sunday, March 01, 2009 8:49 PM To: 'N2TK' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux Hi Tony, Interesting... what settings did you have the K3 set too when you did the test? Would it be possible for you to try without any antenna connected, and have the K3 set to AM? For me, it seems to be loudest on AM mode and also when the preamp is turned off. In the absence of any signal entering the receiver is when this noise is loudest. I've also tried reloading the software several times, from 2.78 to 2.82 and now 2.96 and haven't noticed any difference. If it is encoder pulses or something the synthesizer is doing around 5 MHz, then why can't other people recreate my problem... or why does it differ from rig to rig?? 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 1:43 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux Just checked. No added noise when tuning around 5MHZ. 73, N2TK/NP2, Tony #311 -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 1:36 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux Hi James, Just checked. I am using 2.82. Guess I got behind on the upgrades. The only thing I do around 5MHZ is 60M and these channels are in memory. So I would not be tuning around 5MHZ to check for this problem. Will try tuning around 5 later today and will let you know if I have this problem. I assume you tried reloading the firmware. 73, N2TK/NP2, Tony From: James Sarte [mailto:kc2...@gmail.com] Sent: Sunday, March 01, 2009 1:22 PM To: 'N2TK' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux Hi Tony, What software are you presently running? I fortunately never had this VFO encoder noise at 6m, but it is very noticeable around 5 MHz. I'm using 2.96 beta. 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 9:13 AM To: 'James Sarte'; 'Gregg' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I had the encoder noise problem on 6M. It happened when I had upgraded the software (don't remember the version). I reloaded the software and the problem went away. It has been fine since. N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hi Tony, Thanks for taking the time to do that test for me. I do hear the noise with an antenna connected, but the antenna is not tuned for 5MHz so the noise floor is pretty low. I do not hear this noise through the sub receiver if I use the AUX BNC connector, but I will hear it through the sub receiver if it's using the same antenna as the main receiver. Otherwise, everything else you've described is what I'm experiencing. This noise is around an S5 to maybe S7 on the meter when I move the VFO knob. As you also discovered, turning the preamp on raises the noise floor masking most of the EMI. It's not very noticeable when the preamp is on. Would it be OK to forward this email to Elecraft tech support? I've been maintaining a running dialogue with them regarding this issue, and your findings may help them to develop a solution. Thanks again and 73, James KC2UEE -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Sunday, March 01, 2009 8:32 PM To: 'amstel78' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I was using SSB settings and had an antenna hooked up. I did not hear any noise I put a dummy load on the antenna jack and used AM mode. I can hear noise as I turn the dial. I can just barely hear the noise when I turn on the preamp. And with any antenna hooked up I do not hear any noise at all as I turn the dial. Jim, do you hear this noise with an antenna hooked up? I do not, so as far as I am concerned it does not exist. However if you hear this noise when you have an antenna hooked up you need to talk some more to Elecraft support. 73, N2TK/NP2, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
I've noticed that when I'm tuning around 4.8 MHz to 5.3 MHz, I can hear EMI in the form of a motorboat sound whenever I turn a front panel knob. It's most apparent when spinning VFO A or VFO B knobs, but also occurs when turning the filter knobs. I have a slight bit of noise when tuning only in that area. I believe it to be entirely normal. I recall Wayne saying somewhere that the DDS operated in the area of 5 MHz and that was synthesizer switching noise. In my case, the noise is about S1 on an S-meter that was calibrated to the XG-2 and is in abs mode. In my case the noise is only audible in the main Rx with VFOA or XIT/RIT when XIT/RIT is enabled ... or in the sub RX with VFOB or XIT/RIT when XIT/RIT is enabled. The noise is masked by band noise with an antenna connected. It is audible only from 4.900 to 5.100 and only noticeable from 4.940 - 5.050 unless one it looking for it. As you say, it is not present when the VFO or RIT knobs are at reset ... it is not a problem here. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Sarte Sent: Saturday, February 28, 2009 5:27 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Weird EMI issue... part deux OK gang, I don't know what to do at this point and you're my last line of defense before sending this rig back to Elecraft engineering for analysis. I'll sum it up briefly: This is rig #2730. I bought it in kit form, and assembled it myself. It has a sub receiver, 100w amp, KDVR3, KAT3 tuner, transverter, plus a full complement of filters on both receivers. I also have a single general coverage receive module installed on the sub receiver. This is the problem: I've noticed that when I'm tuning around 4.8 MHz to 5.3 MHz, I can hear EMI in the form of a motorboat sound whenever I turn a front panel knob. It's most apparent when spinning VFO A or VFO B knobs, but also occurs when turning the filter knobs. If I don't touch anything, no noise occurs. I can also hear this noise faintly when I'm around 3 MHz. There is no front-panel generated noise anywhere else from .5 to 54 MHz other than 3 and 5 MHz. Also, if I don't have the sub receiver on and I'm only listening to the main receiver, the EMI noise isn't as loud when the pre-amp is on. If I turn the pre-amp off, the EMI generated from spinning knobs increases in volume. When I spin a knob and hear this noise, I can also see the S-meter move in correlation with the noise; spiking at S-7 from time to time. This tells me that this is locally generated interference, and occurs somewhere within the K3's circuitry. Turning the pre-amp on or off has no effect on the sub-receiver; the noise is still present. Here's what I've done: I've replaced the SUBIN board because I thought it was only the sub-receiver being affected at one time, but it didn't help. I've also swapped mixers and synthesizers with no positive result. I've disassembled and reassembled the entire front panel 4 times already, and cannot find anything wrong. I've traced circuits on the sub receiver and SUBIN boards and everything checks out. I've also swapped TMP cables around with no improvement. I've also removed just about every module except the transverter and KAT3 hoping to eliminate a problem module, but the problem still remains. I've also checked every screw and washer throughout the radio, and they all match the assembly instructions. I'm starting to think that there may be an isolation problem with the main RF board at this point. BUT, since I was not able to test the rig without the KAT3 tuner or removing the transverter board, I cannot be 100% sure. Is there anything else I can check before sending the rig back to Elecraft??? Apart from this problem, I have not experienced any other issues with this radio. In fact, it works PERFECTLY well.. I should probably tell myself to live with this noise, but after spending 4k, I don't want too. Suggestions people? Please help a fellow ham out. 73, James KC2UEE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hello Joe, Thanks for the reply. So if I understand you correctly, this noise is coming from the synthesizer and is normal? From conversations with Elecraft tech support, I got the impression that this should not be occurring as they could not replicate the noise on their K3's. It also does not happen when listening to the sub receiver using the AUX BNC connector. It only manifests itself when listening to the main or sub receivers and using ANT1 or ANT2. I have noticed that if I come across a broadcast signal within that specific frequency range, then the signal will mask out the EMI completely, and I can't hear it until I tune past the station. It would be helpful if I could get a definite answer from the Elecraft engineers. So far, I have not heard anything from them. This noise is actually quite loud for me, and spikes at S7 on the Elecraft meter. 73, James KC2UEE -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Saturday, February 28, 2009 6:06 PM To: 'James Sarte'; elecraft@mailman.qth.net Subject: RE: [Elecraft] Weird EMI issue... part deux I've noticed that when I'm tuning around 4.8 MHz to 5.3 MHz, I can hear EMI in the form of a motorboat sound whenever I turn a front panel knob. It's most apparent when spinning VFO A or VFO B knobs, but also occurs when turning the filter knobs. I have a slight bit of noise when tuning only in that area. I believe it to be entirely normal. I recall Wayne saying somewhere that the DDS operated in the area of 5 MHz and that was synthesizer switching noise. In my case, the noise is about S1 on an S-meter that was calibrated to the XG-2 and is in abs mode. In my case the noise is only audible in the main Rx with VFOA or XIT/RIT when XIT/RIT is enabled ... or in the sub RX with VFOB or XIT/RIT when XIT/RIT is enabled. The noise is masked by band noise with an antenna connected. It is audible only from 4.900 to 5.100 and only noticeable from 4.940 - 5.050 unless one it looking for it. As you say, it is not present when the VFO or RIT knobs are at reset ... it is not a problem here. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hello Gregg, If these are indeed pulses generated by the encoders, would replacing them solve the issue, or is this a design problem? Could this noise be masked out in firmware, or is it a hardware issue that can't be solved via software? I do recall hearing about some people having similar problems with their rigs on 6 meters. In my case, 6m is quiet with no EMI noise. What's troubling me now is that some people say this is normal, while others like the good folk over at Elecraft tech support cannot replicate this issue on their K3's. 73, James KC2UEE -Original Message- From: Gregg [mailto:w6...@bellsouth.net] Sent: Saturday, February 28, 2009 5:55 PM To: 'James Sarte' Subject: RE: [Elecraft] Weird EMI issue... part deux James: I suspect that what you are hearing is an artifact of the pulses generated by the tuning encoder. These pulses are audible on some K3s on 6 meters. The fact that they are not as loud with the pre-amp on is most likely due to an increase in the noise floor when the pre-amp is activated that somewhat masks the pulses. Gregg W6IZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Weird EMI issue... part deux
Hi Gary, Yes, I suppose you're right. I have however tried rerouting all of the cables again, and made sure all the TMP connectors were inserted fully. That unfortunately didn't make any difference. I guess I'll just have to send it back to Elecraft for their engineers to diagnose. 73, James KC2UEE _ From: Gary Hvizdak [mailto:garyhviz...@cfl.rr.com] Sent: Saturday, February 28, 2009 11:21 PM To: kc2...@gmail.com Subject: RE: [Elecraft] Weird EMI issue... part deux James, My guess is that a design problem would affect all K3s. In your case, it might be a minor difference in how you've routed the cables. (Again, this is just a guess.) 73, Gary KI4GGX _ __ 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
