[Elecraft] KPA500 Help - After 2 weeks : still no able to load firmware
Hi After two weeks, still in trouble. 1 - I DO know that the Mac + USB/serial cable are working : no problem to communicate with K3 and P3 2 - if you don't trust me I also used a PC with another USB/serial... 3 - I checked many time the 2 ribbon cables on the I/O board of the KPA500 4 - I put a NEW I/O board send by Electraft ... 5 - At the first attempt, good communication with the KPA500 and beginning of the firmware load..(STBY led flashing nicely...) 6 - after 30 sec message : MCU load failed 7 - after MANY others tests - no (or sporadic) communication with KPA500 (using MAC or PC) It looks that something is wrong with the CPU ?? Is it possible to reset the CPU ? Any help will appreciated but (please) IT IS NO a problem of computer . Regards Nicolas, F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-Help-After-2-weeks-still-no-able-to-load-firmware-tp7568891.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
Re: [Elecraft] KPA500 Firmware loading VERY long
Many thanks for the answers but even with another computer (PC) and another cable, I was not able to load the new firmware (and the older too). I had this message that I send to elecraft support Wait and see... Nicolas, F5HFZ Elecraft KPA Utility Version 1.12.3.12 OS Version 6.1 Build 7601 Windows 7/Windows Server 2008 R2 KPA version ??.??. RS-232 speed 38400 bit/s Sending firmware file C:\Users\Nicolas\AppData\Roaming\Elecraft\KPA Firmware\KPA500FP0118.hex to MCU Retry 1 successful at address 0x000800, 68 fill bytes Retry 1 successful at address 0x000940, 68 fill bytes Retry 1 successful at address 0x000980, 68 fill bytes Retry 1 successful at address 0x0009C0, 68 fill bytes Total number of retries was 4 Highest number of retries for any block was 1 Error code 0xE248: No response to poll while synchronizing to buffer boundary MCU verification failed. Reload MCU. Click "Close" to close this window -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-Firmware-loading-VERY-long-tp7568315p7568331.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
[Elecraft] KPA500 Firmware loading VERY long
Hi For now one hour the new KPA500 firmware is loading. It's very lng I get a new line : ex Retry xx successful at address xx every 3 minutes in the KPA500 utility windows... At this speed it will take hours to complete.. Is it normal ? Nicolas, F5HFZ MAC OS 10.8 KPA Utility 1.4.5.4 highest serial speed -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-Firmware-loading-VERY-long-tp7568315.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
[Elecraft] P3/SVGA AZERTY keyboard ?
I received a K360 logitech wireless keyboard to plug in the P3/SVGA. Everything's fine BUT as a French model this a AZERTY keyboard and the P3/SVGA is waiting for QWERTY one. Not a big deal (need a little bit of training) but I wonder if there is a solution. Maybe in the future others keyboard will be supported. BTW I am happy with this keyboard thanks to the reflector (and Eric) to share the info about this model. Nicolas, F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-SVGA-AZERTY-keyboard-tp7562149.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
Re: [Elecraft] P3 Utility and Mountain Lion problem
Hi To answer the question. The problem was the shut down of the P3 Utility after probably the upgrade of the Mac Os (Lion to Moutain Lion). The solution is very easy (thank to Adrian VK4TUX), just remove the prefs file in the user librairy (P3utilityprefs). Hope this help (no problem so far with others Elecraft softwares) Best 73 Nicolas, F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Utility-and-Mountain-Lion-problem-tp7561916p7562057.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
Re: [Elecraft] P3 Utility and Mountain Lion problem
Thank to Adrian VK4TUK... 5 minutes after my threat he mailed me the solution !!! Fine reflector. Nicolas NC40, SIERRA, K1, K2, K3, P3, KPA500, KX1, waiting for KX3 & KAT500. -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Utility-and-Mountain-Lion-problem-tp7561916p7561917.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
[Elecraft] P3 Utility and Mountain Lion problem
I tried this morning to install the new firmware for the P3 (beta SVGA 0105BEATA.ZIP) but I was not able to run the P3 utility (1.12.4.26). I use a MAC and the problem is probably the new OSX (mountain lion) I installed few weeks ago. K3 utility is running fine. There was a threat on the reflector on this subject but without solution and no mention if the OS was Lion or the mountain lion. Any suggestion or help ? Nicolas, F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Utility-and-Mountain-Lion-problem-tp7561916.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
[Elecraft] KAT500 info ?
Proud owner of a KPA500, I am anxioustly waiting for the KAT500. I have not seen any information when the KAT 500 will be avalaible for a while (at least to order). Any info ? 73, Nicolas F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-info-tp7171132p7171132.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
Re: [Elecraft] KPA #455 SOLVED
Thanks for the good advices and for the schematics. I found the problem... a beginner mistake (shift of a ribbon cable) and everything's fine now . Best 73 Nicolas -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-455-not-very-well-tp6943877p6944196.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
[Elecraft] KPA #455 not very well
Hi I just finished to build KPA500 #455. Unfortunately I found several problems. 1/ fan is not working (I already checked that the 2 wires are a the right place on the plug - no inversion like someone reported earlier) 2/ I coupled the KPA500 to the K3 with the KPAK3aux from Elecraft. For some bands (14,21,10,5.3) when I push the button on the front of KPA500 the band is changed on K3 but NOT on KPA500 (example 14 gives 1,8 - 21 gives 7) ! For this 4 bands, in TX mode, the KPA500 automatic band switching selects the proper band. I thought to a software problem and i tried to reload the firmware (after a parameter reset to default value) and I run to my third problem... 3/No communication available with the KPA500. I tried two configurations Mac and PC. The serial / USB cable is the KUSB from Elecraft and both systems are perfectly working with K3 and P3 so I am pretty sure that it is a KPA500 problem. I don't have the schematics of the KPA500 (and in the other hand I'm not a brilliant technician...) so any help will be appreciated. I should mention that I already build Norcal 40, SIERRA, K1, KX1, K2, K3, P3 so I have a little experience and I already checked that I didn't make any mistake (wire ribbon cable inversion or badly plugged, no thermal insulator). I performed all test with success with my DMM during the building. Last point the HF module seems to wok without problem. So again thank in advance for any help Nicolas, F5HFZ -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-455-not-very-well-tp6943877p6943877.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
[Elecraft] KX1 - 7 displays briefly; then just the single lower left vertical LED segment flashes.
Hi, KX1 Build. Thanks for the helpful replies to my last issue (6 volt supply), that is now resolved! I have got to page 42. Then on to the Relay checks - all OK. I switched off the rig then later I switched back on and plugged in my headphones for the sidetone test. But 7 displays briefly; then just the single lower left vertical LED segment flashes. I have tried a reset but as soon as the switches are released the same Led segment still just flashes. Is there anything else I should be checking? Any suggestions appreciated as my planned /P building attempt has now paused, and I was so close to getting the RX working! Please reply to [EMAIL PROTECTED] as I only get the daily digest. Thanks Again Regards Nicolas www.m1hog.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 - U9 - 77L06 - outputing 8.03 Volts...
Hi, KX1 Build I have got up to the test of U3 voltage (Page 28), and pin 6 is at 8.03 volts.. It should be 6! I have triple checked everything so far which all appears to be in order. As I am away from home at the moment I am building the KX1 on a small table and hence lack any more test equipment than a multimeter. Is 77L06 (U9) likley to be fried? Is there anything else I should be checking? Any suggestions appreciated as my planned /P building attempt has now ground to a halt, and it would be great to be able to build some more! Please reply to [EMAIL PROTECTED] as I only get the daily digest. Thanks Regards Nicolas www.m1hog.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] T Shirt Slogans
Hi, I like "Ed" [EMAIL PROTECTED] idea, perhaps just boil it down to simply K3 The New Peak And What's in your shack? Some other suggestions 1. K3 - Just K3 on the T shirt and the web address in large letters. Black T Shirt with White lettering... or is that to close to Yaesu! 2. K3 Big 3 - You could add a question mark on the end, or is that just too cryptic! Regards Nicolas www.m1hog.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 #4039 - Distorted transmit audio
Hi, The distorted audio moves with the Control board, so either K2 can enjoy distorted transmit audio, if it has the faulty board fitted! Just to clarify point 3. The 12v rail seemed to modulate on both K2's when using either the faulty ** OR ** the working Control board! As this effect is the same for both K2's with either Control board. This would seem to indicate it is some other measurement (etc) effect, that we are seeing? Thanks again!!! Regards Nicolas Original posting. Hi, Following reports of poor transmitted audio, and aided by a fellow K2 owner we set about a little investigation. What happens.. Raspy, clipping?, (distorted by RF?), almost Dalek (For UK readers!!), sounding transmit audio. We checked the various board, joints etc, swapped things with the known working K2 and established.. 1. The issue is with the control board, when swapped, it gives the same fault in either K2. 2. No obvious component problems. 3. Another interesting observation on both K2's, was how the 12v rail modulates when you transmit? Any suggestions, where / what to look for on the control board, or other ideas? Thanks!!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.808 / Virus Database: 550 - Release Date: 08/12/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 #4039 - Distorted transmit audio
Hi, Following reports of poor transmitted audio, and aided by a fellow K2 owner we set about a little investigation. What happens.. Raspy, clipping?, (distorted by RF?), almost Dalek (For UK readers!!), sounding transmit audio. We checked the various board, joints etc, swapped things with the known working K2 and established.. 1. The issue is with the control board, when swapped, it gives the same fault in either K2. 2. No obvious component problems. 3. Another interesting observation on both K2's, was how the 12v rail modulates when you transmit? Any suggestions, where / what to look for on the control board, or other ideas? Thanks!!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.806 / Virus Database: 548 - Release Date: 05/12/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 #4039 Headphone Socket - Replacement needed, UK supplier?
Hi, I wonder if anyone can suggest a UK supplier for the K2’s headphone socket. Mine no longer switches the internal speaker on and sometimes makes a poor connection to the headphones. Close internal inspection revealed that one of the plastic lugs on the “rear switch” had broken away. So the headphone socket was no longer sliding the rear switch across. I have tried Maplin’s and RS, I could find the correct basic socket but not one with the rear switch. Thanks!!! Regards Nicolas HYPERLINK "mailto:[EMAIL PROTECTED]"[EMAIL PROTECTED] HYPERLINK "http://www.m1hog.com/"www.m1hog.com K2 #4039 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.799 / Virus Database: 543 - Release Date: 19/11/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 - 4039 Aligning with Spectrogram questions.
Hi, Thanks to everyone for there feedback regarding my bassy audio. I have now downloaded Spectrogram and read N0SS's K2_SSB_Gram notes (17/01/2001). I struggled a bit to find the correct settings with the latest version of Spectrogram but have made a start with the following settings Sample 22k Mono Scope 2 Plot type signal Averaging 1second Spectrum DB/hz max 30 Freq linear Fft 2048 Freq res 10.8 High band Limit 2570 Low band Limit 0 My K2 #4039 is using the unmoded 2.2 (Revison D, Jan 8, 2004) SSB filter I do get some vaguely sensible graphs(!) But I have a few questions! 1. Are these spectrogram setting optimal? 2. What upper and lower frequency markers should I use? 3. Mention is made in another doc of placing a 10Ohm resistor to ground if using the headphone output (as I am) do I need to do this if so where should the resistor be placed? Or should I use the speaker output? 4. Any other suggested documents hints etc? Thank you very much!! I just want to get my K2 set up nicely and work some of you guys!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.744 / Virus Database: 496 - Release Date: 24/08/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: SSB Transmit Audio
Hi, I have recently completed K2 4039 along with the "K2" Heil Headset, SSB, 160m, ATU and Battery options. I have made a few (6) contacts on SSB. Yesterday we tried a contact on 20m just across town to a good pal of mine, and an experienced ham, to really check out the sound of the radio/audio. We worked through the Mic gain and compression options, but he advised that my audio was bassy and lacked top end / punch. His audio sounded perfect (Well to me at least!!) Ah.. This was a little disappointing.. But we needed to know. So, now the only other thing I can think to change is the BFO transmit offset? Is this a place to start??(!) Or what else might I have missed? Thanks! Regards Nicolas (In search of better audio!) www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: #4039 Auto ATU - Adjusting C55!!
Hi, I have completed and installed the 20w internal ATU. I am now carefully working through the tests, which have all been OK so far. Accept for adjusting C55 to get a reading of 0. The best I can manage is about 15. Despite a lot of fiddling!!! All the voltages check out OK, and C55 is roughly in midrange. BTW my dummy load has a resistance of 56 Ohms, just thought I would mention that. Any suggestions? Thanks everyone!!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.726 / Virus Database: 481 - Release Date: 22/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Effective Antennas for use with K2 ATU
Hi, My K2 is complete and I will finish the auto ATU tonight. I am sure this is FAQ please feel free to refer me! So, here goes.. What simple Antennas would you recommend for use with my K2 and the built in auto ATU for 1. Base station use, a small back garden 30ft by 22ft? My "shack" is on the first floor in a room facing the garden. At the moment I have no holes in the wall!! If I have to run wires around the window frame to start with that is fine. Just keen to get going!! 2. Portable, by the seaside or in a pub garden? Thanks! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.725 / Virus Database: 480 - Release Date: 19/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] RE: 4039 - Bandpass filters? - Sorted - Thanks!
Hi, Thank you very much! The clue, is of course the AGC... Once switched off, the easy peaking of the band pass filters returns! Regards Nicolas www.m1hog.com -Original Message- From: Tom Hammond [mailto:[EMAIL PROTECTED] Sent: 19 July 2004 14:17 To: [EMAIL PROTECTED] Subject: Re: [Elecraft] RE: 4039 - Bandpass filters? Hi Nicholas: >During the course of this final alignment I worked through the set up >procedure for the band pass filters again, using the small broadband noise >generator I have built (Thanks N0SS). But I just did not seem to get the >same easy "peaks" esp. on the lower bands, that I did when I first aligned >it on 40m etc as an RX only (Prior to fitting the SSB board, TX, etc). > >Is something wrong? Probably not... as long as the sensitivity appears to still be good. Try removing the KBS2 and replacing it with the two capacitors (which were previously removed) plugged into the headers. If there's a marked difference in sensitivity, then there probably IS a problem, otherwise, probably not. Double-check the peaks, and use band noise for the peaking, rather than the noise generator... it usually will provide MUCH more than the required RF levels and will usually 'swamp' (overload) the AGC (if it's turned on). The noise generator was really intended for use with adjusting the xtal filters, rather than fine-tuning the BPF, which requires low signal levels and good hearing. Cheers, Tom N0SS --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.721 / Virus Database: 477 - Release Date: 16/07/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.721 / Virus Database: 477 - Release Date: 16/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: 4039 - Bandpass filters?
Hi, Firstly, thanks to everyone for their help. I have now completed, aligned and briefly tested 4039 on 20M. During the course of this final alignment I worked through the set up procedure for the band pass filters again, using the small broadband noise generator I have built (Thanks N0SS). But I just did not seem to get the same easy "peaks" esp. on the lower bands, that I did when I first aligned it on 40m etc as an RX only (Prior to fitting the SSB board, TX, etc). Is something wrong? Thanks !!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.721 / Virus Database: 477 - Release Date: 16/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: 4039 - Running, But a bit unsteady on it's feet..
Hi, Thanks!!! All sorted now, the combination of the cabinet screws and moving the 2 rear rubber feet slightly did the trick. Next job is to get the ATU built!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.721 / Virus Database: 477 - Release Date: 16/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: 4039 - Running, But a bit unsteady on it's feet..
Hi, Sorry if this is FAQ, please refer me if so!! While operating my K2 with the bail arm forward, it "rocks" slightly from front left to rear right. What is the best way to be rid of this wobble? Thanks!! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.719 / Virus Database: 475 - Release Date: 12/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 4039,Failing transmitter tests (Resolved!!)
Hi, Thanks for everyone's input! The problem is now resolved, a note from my Weblog follows!! Regards Nicolas www.m1hog.com 10th July - Main Board - I investigate further; after a good few hours of wandering through various tests and a few trial and errors, I find the PA Bias is grounded, instead of showing 2.7k resistance! Which is not helping matters.. The Pre Driver Bias is OK though. I read through the emails, and chat with Sean. Further digging and checking, but no real progress. Then off for a swim, and a chance to properly consider the various email suggestions; DC voltage checking, PA shorts, removing components, failed components.. Clearly, this problem requires a hot iron and a cold beer. Looking again at the circuit diagram something is dragging the PA bases to ground, now there aren't that many components that are, or could be connected to ground, I start removing them and checking the PA base ground as I proceed. After various capacitors and the 2 PA transistors! have been removed, the ground still remains.. I look across to the LPF connection and remove Z1 (Effectively a link to part of T4). The ground to the PA base disappears.. Progress.. Taking another breather, I consider T4 (As well you might) something from the LPF side of T4 is grounding across T4? Puzzled by this; I remove one of the T4 output wires(3), and replace Z1, the base ground disappears. After some wonderment I resolder the wire and the short does not reappear. I fail to quite see the logic here, but clearly there was something odd happening with T4. A considerable time is spent cleaning up and resoldering all the removed parts, checking along the way. 4039 is once again connected to its dummy load, and tested. This time we have RF!! Looking again at the PA circuit diagram also reveals that T4 should have 3 turns on the output not 2, this could explain the slightly high current being drawn (2 turns are recommended for optimum 5 watt operation. The next task then is to take the heatsink apart again and rewind T4!! --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.718 / Virus Database: 474 - Release Date: 09/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 4039, Failing transmitter tests - PA Bias Grounded
Hi, Thanks everyone for the suggestions. I now have some more information to go on! Q7 Collector 3k OK! Q6 Base118Ohm OK! Q7 BaseSHORT Not OK!!! I have checked the diodes, toroids T1 - T4, and carefully looked over the board for shorts. I have referred to the circuit diagram but I do not really know now to determine if the PA Bias section is grounding it, or if the PA section is grounding itself, or some other section is grounding them!! (Although don't "think" much else can?) Wondered if you had any suggestions? Thanks Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: K2 4039, Failing transmitter tests
Hi, I have steadily and carefully built my K2 and it has passed all the tests so far with flying colours, including 40m RX. Now I have just completed the transmitter stages, and attempted the first tx test... Ah problems. Well things have gone well so far!! Even a bottle of Hoegaarden did not help... This is what happens. 1.40m rx working fine. 2. Connect dummy load etc 3. Set for 2.0 output, tune to 7100 4. Press and hold tune. A bleep in the headphones, the output limiter on the PSU flicks in cutting the power briefly and Elecraft displays on the K2. (I have tried another PSU (3amp) but the same result) If the power is turned down to .2 or so it will stay in tune mode Upon checking the antenna connection, there appears to be a short between earth and the centre of the BNC.. (Using a DVM) This cannot be correct? I have tried another PSU (3amp) but the same result. Perhaps you could confirm if an indicated short across the BNC, is incorrect, and any suggestions of where to look first would be very helpful. Thanks! Regards Nicolas www.m1hog.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05/07/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Toriod winding questions (Sorry!)
Hi, I have now carefully wound and installed the first few Toroids for my K2. Vertical Toriods - As I did not want the wire crossing back over the windings to the mounting holes. I have a bare part of the Toroid (i.e no wire) where the core sits on the board. Not sure of the percentage, could be 20% bare. Horizontal Toriods - As I did not want the wire running parallel to the windings and back to the mounting holes. I have a bare part of the toroid (i.e no wire) where the core sits on the board. Not sure of the percentage, could be 20% bare. I know the manual says 85% as a target. Am I worrying too much? Is it ok / desirable to have the wire running parallel to the windings, in order to get fuller spacing around the core? if so, are they secure with the extra "loose" wire? I have read the toroid page and looked at photos but I have missed this mounting detail! Thanks! Regards Nicolas WWW.M1HOG.COM --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.709 / Virus Database: 465 - Release Date: 22/06/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
