Re: [Elecraft] K2 Build #7552
Don, YAAAYYY!!! The answer turned out to be very simple. I loosened all the chassis screws in the assembly to date. which gave enough movement in the boards particularly the RF board, to allow the screws fixing the Control Board to be tightened easily. I then tightened all the remaining chassis screws again and everything tests ok. Yes, I did check all boards again for any suspect joints. Thanks to Don, Matt, Vic, and all.. On with the next stage !! 73, Kev VK5KS On 29/09/2014 1:51 PM, Don Wilhelm wrote: Kevin, That is telling that you have not truly flush trimmed the lead on the encoder board and the area of the control board where it makes potential contact. There is not a lot of space for error there. Flush trimmed means really flush with the board thickness. Solder that protrudes from the board surface is too much. you may do well by putting an insulating substance such as a layer of electrical tape over the encoder board after flush trimming it. 73, Don W3FPR On 9/28/2014 10:14 PM, Kevin Schache wrote: Many thanks to Don and others who responded. The problem has been fixed, I found a suspect dry joint on the PTT/ATT switch. I also checked the new encoder which appeared ok but I did insert a very thin piece of insulation between the new encoder and the control board to make sure. All tests now appear ok UNTIL I re-insert and tighten the two holding screws in the Control Board. When these are tightened, the control board is pulled about 1/8th inch toward front panel, probably stressing both boards, causing the display to be erratic (ELICRAFT instead of ELECRAFT for example), and erratic other test results. Stressing the boards may be causing movement in sockets where they are used. Does it matter if I leave those two screws out? Another option would be to put in longer screws and not tighten them so much, or perhaps a better suggestion maybe to increase the spacer length marginally, so that there is no stressing. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?
I have K2 serial no 03885. I've recently finished building the KSB2 SSB adapter, but I'm having problems getting it to work. The problem is very low output power when I speak into the mic. I'm using an Icom MK36 mic and I've set the P1 header as per the KSB2 manual; including the resistor to get Mic bias. The options as set SSBA = 2, SSBC = 2-1 and I've done the carrier balance. On 7MHz, LSB, with the power set to 1W, when I tune the rig into a dummy load I get 1W, but when I talk or whistle into the Mic, the most I can get is about 100mW. Nomatter how load I yell, I cannot get full output power :-) and the bar graph hardly moves. I've checked all the DC voltages and they are OK. I used a scope on U5 (NE602) and there is an enormous disparity between the voltages on pin 6 (hi) and on pin 1 (very low). The waveform on U3 pin 7 (the compressed AF out) is greater than that on pin 4, (the AF input), but not by much. I want to eliminate the Mic as the source of the problem (It works perfectly with the IC-756 Pro II) by using an AF sig gen, but I'm not sure how much AF drive should cause 100% output power. Gareth - M5KVK __ 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] Rose Kopp
Ken, What fabulous news! I'm sure I'm with everyone else here wishing both of you a speedy return to normalcy. Give her a big hug for us! Cheers 73, Howie - WA4PSC __ 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] PX3 requires KX3 v2.19
Just received my PX3 and see that the KX3 requires Firmware Version 2.19. I have downloaded Utility KX3 1.14.4.11 and checked the software version in the KX3. Results MCU 1.87, DSP 1.28 and tells me that these are the up to date versions. How do I get 2.19? The KX3 is standalone and not connected up to the KXPA100. Many thanks. Mark G3XYS/NS1Q __ 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] PX3 requires KX3 v2.19
Hi Mark, Please use the latest beta-test firmware for both the PX3 and KX3. We're now up to revisions 1.11 and 2.23, respectively. You can obtain these from our KX3 and PX3 web pages. 73, Wayne N6KR On Sep 29, 2014, at 7:51 AM, Mark Raybould taxa...@gmail.com wrote: Just received my PX3 and see that the KX3 requires Firmware Version 2.19. I have downloaded Utility KX3 1.14.4.11 and checked the software version in the KX3. Results MCU 1.87, DSP 1.28 and tells me that these are the up to date versions. How do I get 2.19? The KX3 is standalone and not connected up to the KXPA100. Many thanks. Mark G3XYS/NS1Q __ 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] How much AF volts at 1kHz to get full RF power using KSB2?
Gareth, During transmit you should have about 1.4 volts DC on pin 1 or the balanced modulator U5. I just measured the U5 pin 1 audio using a 'scope with a 10X probe and found the peak to peak voltage ranged from 200 to 400 millivolts. If you have a good microphone, you should see a similar amplitude signal. The RF output at U5 pin 4 should have a similar amplitude. The BFO injection at U5 pin 6 should be greater than 200 millivolts peak to peak and on the one I just measured there was a 1 volt BFO signal there. 73, Don W3FPR On 9/29/2014 4:52 AM, Gareth - M5KVK wrote: I have K2 serial no 03885. I've recently finished building the KSB2 SSB adapter, but I'm having problems getting it to work. The problem is very low output power when I speak into the mic. I'm using an Icom MK36 mic and I've set the P1 header as per the KSB2 manual; including the resistor to get Mic bias. The options as set SSBA = 2, SSBC = 2-1 and I've done the carrier balance. I've checked all the DC voltages and they are OK. I used a scope on U5 (NE602) and there is an enormous disparity between the voltages on pin 6 (hi) and on pin 1 (very low). The waveform on U3 pin 7 (the compressed AF out) is greater than that on pin 4, (the AF input), but not by much. I want to eliminate the Mic as the source of the problem (It works perfectly with the IC-756 Pro II) by using an AF sig gen, but I'm not sure how much AF drive should cause 100% output power. Gareth - M5KVK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3/PX3 Beta Firmware loading with Mac OS Mavericks (10.9.5)
Mac Safari will not action the 'ftp' URL, but Firefox loads kx3fw2r23.zip and I locate it in a folder Elecraft Beta. Files Un-zipped. Activate KX3 Utility, and entering the path to Beta folder, 'Local folder for firmware files', and on 'Checking versions now', the path to the Beta folder is ignored and the previous path for non-beta files is chosen. Is this a challenge for many Mac users or do I go back to Windows? Thanks for any assistance. Mark G3XYS/NS1Q __ 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/PX3 Beta Firmware loading with Mac OS Mavericks (10.9.5)
Mark, I have only ever had one issue with using my Mac on ELECRAFT files, and that was when I failed to refresh the local caching. I have quite routinely copied the zip files to my Mac desktop, and pointed the KX3 or PX3 utility to those folders to install new firmware. Cheers Jim K8JK Sent from my iPad On Sep 29, 2014, at 12:47 PM, Mark Raybould taxa...@gmail.com wrote: Mac Safari will not action the 'ftp' URL, but Firefox loads kx3fw2r23.zip and I locate it in a folder Elecraft Beta. Files Un-zipped. Activate KX3 Utility, and entering the path to Beta folder, 'Local folder for firmware files', and on 'Checking versions now', the path to the Beta folder is ignored and the previous path for non-beta files is chosen. Is this a challenge for many Mac users or do I go back to Windows? Thanks for any assistance. Mark G3XYS/NS1Q __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jameskvoch...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [KX1] Optimal Voltage
I want to build an external custom AA eneloop battery pack for my KX1's, but was wondering if anyone had any experience on the optimal voltage would be. Is higher always better for producing maximum output? Chris K6OZY __ 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/PX3 Beta Firmware loading with Mac OS Mavericks (10.9.5)
Mark I had the same problem with safari, but as you spotted Firefox works fine. However you don't want too use the check revisions now button with a beta - that'll go to Elecraft for the latest release edition. Just send the firmware to the KX3. I hope this helps. Cheers Andy, G8TQH On 29 Sep 2014, at 18:34, James kvochick jameskvoch...@me.com wrote: Mark, I have only ever had one issue with using my Mac on ELECRAFT files, and that was when I failed to refresh the local caching. I have quite routinely copied the zip files to my Mac desktop, and pointed the KX3 or PX3 utility to those folders to install new firmware. Cheers Jim K8JK Sent from my iPad On Sep 29, 2014, at 12:47 PM, Mark Raybould taxa...@gmail.com wrote: Mac Safari will not action the 'ftp' URL, but Firefox loads kx3fw2r23.zip and I locate it in a folder Elecraft Beta. Files Un-zipped. Activate KX3 Utility, and entering the path to Beta folder, 'Local folder for firmware files', and on 'Checking versions now', the path to the Beta folder is ignored and the previous path for non-beta files is chosen. Is this a challenge for many Mac users or do I go back to Windows? Thanks for any assistance. Mark G3XYS/NS1Q __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jameskvoch...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to a...@rickham.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] [KX1] Optimal Voltage
Chris, Yes, higher is better, but up to a limit. The maximum voltage for the KX1 is 15 volts. If you can achieve a voltage between 14 volts and 15 volts, that would be ideal. 73, Don W3FPR On 9/29/2014 2:06 PM, Chris Johnson wrote: I want to build an external custom AA eneloop battery pack for my KX1's, but was wondering if anyone had any experience on the optimal voltage would be. Is higher always better for producing maximum output? Chris K6OZY __ 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] [KX1] Optimal Voltage
I use a 10-cell Eneloop package -- housed in the AA batter holder from an old Icom 02-AT I no longer have. Phil W7OX On 9/29/14, 11:06 AM, Chris Johnson wrote: I want to build an external custom AA eneloop battery pack for my KX1's, but was wondering if anyone had any experience on the optimal voltage would be. Is higher always better for producing maximum output? Chris K6OZY __ 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] How much AF volts at 1kHz to get full RF power using KSB2?
Thanks, Don I'm getting more or less the same as you except for the RF out on U5 pin 4. I'm seeing the BFO of about 400mV pp with no AF, and then going up to 800mV pp when I whistle into the Mic. Doh! I thought I had the carrier balance right, but obviously not. Switching on the SSBA=BAL shows a bif signal on U5 pin 4. I've adjusted that down to almost zero on the 'scope, but I'm still not getting much RF out. 73, Gareth, M5KVK On 29 September 2014 16:38, Don Wilhelm w3...@embarqmail.com wrote: Gareth, During transmit you should have about 1.4 volts DC on pin 1 or the balanced modulator U5. I just measured the U5 pin 1 audio using a 'scope with a 10X probe and found the peak to peak voltage ranged from 200 to 400 millivolts. If you have a good microphone, you should see a similar amplitude signal. The RF output at U5 pin 4 should have a similar amplitude. The BFO injection at U5 pin 6 should be greater than 200 millivolts peak to peak and on the one I just measured there was a 1 volt BFO signal there. 73, Don W3FPR On 9/29/2014 4:52 AM, Gareth - M5KVK wrote: I have K2 serial no 03885. I've recently finished building the KSB2 SSB adapter, but I'm having problems getting it to work. The problem is very low output power when I speak into the mic. I'm using an Icom MK36 mic and I've set the P1 header as per the KSB2 manual; including the resistor to get Mic bias. The options as set SSBA = 2, SSBC = 2-1 and I've done the carrier balance. I've checked all the DC voltages and they are OK. I used a scope on U5 (NE602) and there is an enormous disparity between the voltages on pin 6 (hi) and on pin 1 (very low). The waveform on U3 pin 7 (the compressed AF out) is greater than that on pin 4, (the AF input), but not by much. I want to eliminate the Mic as the source of the problem (It works perfectly with the IC-756 Pro II) by using an AF sig gen, but I'm not sure how much AF drive should cause 100% output power. Gareth - M5KVK __ 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] How much AF volts at 1kHz to get full RF power using KSB2?
Gareth, Is D4 mounted with the correct orientation. - the line on the silkscreen points to the cathode end. 73, Don W3FPR On 9/29/2014 4:16 PM, Gareth - M5KVK wrote: Thanks, Don I'm getting more or less the same as you except for the RF out on U5 pin 4. I'm seeing the BFO of about 400mV pp with no AF, and then going up to 800mV pp when I whistle into the Mic. Doh! I thought I had the carrier balance right, but obviously not. Switching on the SSBA=BAL shows a bif signal on U5 pin 4. I've adjusted that down to almost zero on the 'scope, but I'm still not getting much RF out. 73, __ 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] [KX-1] Selling my KX-1
Now that I have my KX-3, I’ve decided I don’t need my faithful old KX-1 (S/N 608) any more, so I’ve listed it on e-Bay. Has ATU, 30/80 module, and the N0SS tuning indicator, home brew paddle. It’s item number 131309605698, if you or anyone you know is interested. Tnx and 73 Ray K2HYD __ 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] P3: marker frequency off carrier?
Hi I noticed today that with the radio tuned to a frequency and the marker from the p3 right on that frequency, the carrier appears shifted by around 50 Hz. I. E. The peak is 50 Hz lower. Is this just a resolution issue of the p3 or something else? Thanks, Tom __ 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 SSB net results for 9/28/2014
Here is the net report for the Elecraft SSB net from September 28, 2014. We had 26 participants. Station NameQTH Rig S/N N6JWJohnCA K3 936 KB9AVO PaulIN KX3 24 AB7CE Roy MT KX3 115 QRP AD0HT ZachCO KX3 5483QRP K1NWBrian RI K3 4574 K7BRR BillAZ KX3 2013 KF7JZH Ron ID KX3 2262 KA0NCR Arnie NE KX3 161 KF5IMA Bruce MS K2 3575 KM4IK Ian GA K3 281 K8NUCarlOH K3 7976 WB5JJA Ray OK K3 7877 W4RKS Jim TX K3 3618 AD5IJ Howard OR KX3 5178QRP W7JJL JohnWA K3 993 KE7FSD Al AZ K3 8532 K4GCJ Gerry NC K3 1597 K5OAI Sam TX K3 4123 KK4QDZ BillNC KX3 4515 KE7HGE Ken WA KX3 4540 QRP WV5IDwayne TX K3 5287 N6LEW Lew CA K3 3805 QRP WB7SDE EricWA K3 8132 WN8AJim MI K3 3480 AD6JV BillCA K3 6299 NS7PPhilOR K3 1826 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
[Elecraft] K3 No power out after idle time
This symptom makes me think of edge connector problems I have heard about. But in my case there are no low voltage errors that seems to be the case in other reports. If I cycle the radio off and back on everything is good. I think this is the third time this has happened, all in the last month. The only commonality is that the radio has been on and idle for an hour or two. When I return to operate, the problem occurs. I don't think it happens in every case. Any other K3 owners seen this? Thanks! God Bless 73! Jack - WE5ST __ 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 No power out after idle time
Hi Jack, I have had this exact problem. Turned out to be the connector between the front panel and main pcb. Treatment with Deoxit has cured it. BTW - I also had some other weird, seemingly unrelated, problems that would occur randomly. The Deoxit treatment cured all of those as well. Andy VK4KY *** -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-No-power-out-after-idle-time-tp7593485p7593486.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
