Re: [Elecraft] [K3] Main vs. Config Menus
Yes, mine: PF1 = B-A PF2 = SPKR+PH (I keep phones in rear, but sometimes just listen without them) There are a couple of others I use - VOX GN and ANTIVOX (I haven't quite got that right yet) that I'd like on PF keys, but as per previous posts, I want to use M1-M4 and REC buttons for KDVR3, so that limits me to 2 PF keys. Still noting what I use most from CONFIG, will probably want to switch from RF gain to Squelch when I've built using the XV144, could find myself changing that quite a bit. And still tweaking ALC, so IF we had an assignable menu, they would have been on it at present, but not forever. 73 de M0XDF, K3 #174 -- Hofstadter's Law: The time and effort required to complete a project are always more than you expect, even when you take into account Hofstadter's Law. On 28 Jan 2009, at 07:07, Leigh L. Klotz, Jr WA5ZNU wrote: Wayne n6kr wrote: I attempted to make a distinction between operating menu entries (MAIN) and configuration/test menu entries (CONFIG). It's possible I didn't get this right in some cases, in hindsight. But I have noticed that as the firmware and options near completion, the average operator needs CONFIG menu entries less often. I can move menu entries around if there's a compelling reason. So far I haven't seen one :) I kept this in mind for a few days and here's my results: I've been using two PF keys for MIC and SPKR settings, a suggestion I read on the list here. PF1 (RIF) - Spkrs 1/2 (toggles nicely) PF2 (XIT) - Mic Sel (Front, Rear) Once per-mode equalization (TX/RC) is in the firmware (or even if it's possible to limit it to SSB modes only) I will not need to use Menu or Config in normal operation. Leigh/WA5ZNU K3#51 K2#3121 KX1#712 ___ 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] Help on understanding receiver performance
Where I live there are several amateurs with a mile and we are all members of the same club. During club contests we all suffer splatter, my question is to do with what level of splatter is reasonable to expect from a station a mile away line of sight running 100W on 6m. I can do the path loss calculations easily enough - what I am trying to understand is the maximum level that a clean SSB signal say 10kHz or more away can be before receiver generated IMDs become more of a problem than the ones from the transmitter. I.e. the power input in dBm on 6m on the K3 that will cause a noticeable increase in the IMDs - not the 3rd order ones, but the 5th, 7th 9th 11th etc. For example, if the transmitter 5th order is x dB down, what signal level will the receiver cope with until the receiver generated IMDs increases x by 3 dB. For example I seem to suffer more splatter on my K6 than the other station does from me on their IC756/FT726/IC706 (depending who it is). That could be their IMDs or it could be my K3 receiver being overloaded. -- View this message in context: http://n2.nabble.com/Help-on-understanding-receiver-performance-tp2231587p2231587.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K3 Tuning aid on digi mode
W7BRS wrote: Really could very much use a MENU setting that quells VFO-B from reverting to anything other than decoded message when decoding is enabled. My short term memory has it's own QSB and after the other station wizzes by, if I don't copy it I lose it. I hate losing it. Maybe I already lost it.. Who are you again? Yes, since you mention it I would find that handy, too. My memory is hopeless, if I don't write something down the instant I heard it I've forgotten it. I fully appreciate the intent of the original design. I don't wish to take away the original design, just request that if so configured, the decoded message remains un-changed by the apparent time-out to bring back whatever the DISP writes to VFO-B. And for release MCU 4+, maybe pause, rewind and replay in text only, not KDVR-style. I don't know if Elecraft realizes how bees knees the decoder widget we made for fun turns out to be. It's cool. Make it cooler! And to nip it in the bud, I will not use a PC to 'cw-get'. I operate the K3 and just the K3. Yes, I've been extremely impressed with how good the CW decoder is. I have run it in parallel with Fldigi and I could not say one is better than the other. Any feature to preserve the decoded text would be useful for the RTTY and PSK decoders too. Although I guess you don't want to use a computer, I hope one day to be able to get the decoded text from the K3 and display it on the PC screen in KComm. (I know the firmware updater can do that, but it isn't possible to do that and get other info from the radio at the same time, which a logging program needs to do.) - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/K3-Tuning-aid-on-digi-mode-tp2227536p2231824.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] Mods documentation requests, please
I have a new K3 (s/n 2542). How can I find out what mods and updates were included in the construction of my radio? Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Faunt N6TQS +1-510-655-8604 Sent: Tuesday, January 27, 2009 11:46 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Mods documentation requests, please Hi, I've found that the mods are named inconsistently: On the instructions, it says: Elecraft K3 AF Stage Upgrade Instructions (LINE OUT and Speaker Amplifier), but on the Notes page, its called K3 AF Mod kit. Since there's another mod called K3 AF Output Mod Kit, it's a little confusing. Ideally they'd have numbers to make it easier to tell them apart. And I wonder if we can get a set of schematics made available with the changes on them? I'm sure the documentation exists inside Elecraft, and it'd be good to have them available to us. Thanks and 73, doug ___ 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 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] Mods documentation requests, please
In a recent message, Robert Naumann w...@w5ov.com wrote ... I have a new K3 (s/n 2542). How can I find out what mods and updates were included in the construction of my radio? Bob - Have a read through the various mod sheets for the K3 at http://www.elecraft.com/K3/mods/ Most of them will tell you how to recognise whether your K3 has them already. 73 -- David G4DMP Leeds, England, UK -- ___ 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] Mods documentation requests, please
Robert Naumann wrote: I have a new K3 (s/n 2542). How can I find out what mods and updates were included in the construction of my radio? Bob W5OV http://www.elecraft.com/K3/k3_app_notes.htm 73, Bill -- View this message in context: http://n2.nabble.com/Mods-documentation-requests%2C-please-tp2230537p2231885.html Sent from the Elecraft mailing list archive at Nabble.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] Ham band expansions in Norway
The Norwegian FCC equivalent is going to propose some additional and expanded ham radio bands. In the 160-6 m range, the changes are: 60m: 5260-5410 - not channelized. 12m: lower limit moves down to 24740. We're also getting a 500 kHz band and a 70 MHz band. These changes haven't taken effect yet, but hopefully Elecraft will take note, so that any necessary firmware updates and mods are ready in time. Those of you who are able to decipher Norwegian can find more info at http://nrrl.no/NewsArticle.asp?id=296;. Google translate's English version is entertaining, but more or less comprehensible. 73 Jon LA4RT ___ 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] Ham band expansions in Norway
12 meters? There is a 12 meter band? I thought ham was only 40 and 80 CW. Oh, and 30 on contest weekends. Wow! - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jon K Hellan 60m: 5260-5410 - not channelized. 12m: lower limit moves down to 24740. 73 Jon LA4RT ___ 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] Mods documentation requests, please
Thanks Bill, Dave and others. I'll check the list, and take the top cover off (again) to see what's included. -Bob -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill W4ZV Sent: Wednesday, January 28, 2009 6:09 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Mods documentation requests, please Robert Naumann wrote: I have a new K3 (s/n 2542). How can I find out what mods and updates were included in the construction of my radio? Bob W5OV http://www.elecraft.com/K3/k3_app_notes.htm 73, Bill -- View this message in context: http://n2.nabble.com/Mods-documentation-requests%2C-please-tp2230537p2231885 .html Sent from the Elecraft mailing list archive at Nabble.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 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] K3/100 input voltage and TX IMD
Jim, You mention that the TX IMD gets worse when run at 120 watts. The K3 is specified at 100 watts. If you run at 120 watts, it is entirely possible that the TX IMD will then not be as specified. I don't understand why hams expect performance when a transmitter is pushed beyond it specifications. Why should I expect a transmitter specified for 100 watts to operate within its other specs at 120 watts? I don't because that is unreasonable! Trying to squeeze the last drop of power from a transmitter has long been known to create splatter and distortion products. Please don't do that. 73, Don W3FPR Jan Erik Holm wrote: Rick, and others Just to clarify things a bit. First of all when I did get the bad IMD report on the air I was at a different QTH and used a another PS, in this case I do not know exactly what voltage K3 got or voltage drop. Then I did bring K3 home to a PS that had 13.9V RX and 13.5V at TX, didn´t reflect much about this. I then started to measure IMD on the K3 and it didn´t look all that bad up to 80W but at 120W it was much worse. After that I started to rant about different things here on the reflector, did get more or less zilch help from Elecraft sorry to say. Received some good ideas from some nice people here on the reflector. That together with some studies of my own led to bias adjustment on the KPA100 and also I did turn up PS voltage to 14.9V at RX. Also made area of cable between PS and K3 much much larger, at TX I now have 14.6V at the K3 display. My IMD measurements now looks very good up to 100W and at 120W only slightly slightly worse. Since I didn´t get much help from Elecraft I don´t feel I owe them anything but still to be fair to Elecraft it actually looks slightly better now compared to the known good FT-1000D. You can look at these analyzer pictures, Ft-1000D at 200W and K3 at 100W. It actually looks very good. ___ 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] K3/100 input voltage and TX IMD
Don Wilhelm wrote: Jim, You mention that the TX IMD gets worse when run at 120 watts. The K3 is specified at 100 watts. If you run at 120 watts, it is entirely possible that the TX IMD will then not be as specified. I don't understand why hams expect performance when a transmitter is pushed beyond it specifications. Why should I expect a transmitter specified for 100 watts to operate within its other specs at 120 watts? I don't because that is unreasonable! Trying to squeeze the last drop of power from a transmitter has long been known to create splatter and distortion products. Please don't do that. This was what I was saying in my post the other day Don. If the rig does not have good IMD over 100W and Elecraft say we should not run it over 100W, why does the radio allow me to turn it up? IMHO, the power level on SSB should stop at 100W. It is fine probably on CW to run 120W but on SSB and possibly datamodes, it should stop at 100W. It is only software. 73 Ian 73, Don W3FPR Jan Erik Holm wrote: Rick, and others Just to clarify things a bit. First of all when I did get the bad IMD report on the air I was at a different QTH and used a another PS, in this case I do not know exactly what voltage K3 got or voltage drop. Then I did bring K3 home to a PS that had 13.9V RX and 13.5V at TX, didn´t reflect much about this. I then started to measure IMD on the K3 and it didn´t look all that bad up to 80W but at 120W it was much worse. After that I started to rant about different things here on the reflector, did get more or less zilch help from Elecraft sorry to say. Received some good ideas from some nice people here on the reflector. That together with some studies of my own led to bias adjustment on the KPA100 and also I did turn up PS voltage to 14.9V at RX. Also made area of cable between PS and K3 much much larger, at TX I now have 14.6V at the K3 display. My IMD measurements now looks very good up to 100W and at 120W only slightly slightly worse. Since I didn´t get much help from Elecraft I don´t feel I owe them anything but still to be fair to Elecraft it actually looks slightly better now compared to the known good FT-1000D. You can look at these analyzer pictures, Ft-1000D at 200W and K3 at 100W. It actually looks very good. ___ 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 -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP, FISTS K2 #4044 |K3 #455 http://www.amateurradiotraining.org ___ 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] K3: shift granularity: suggestion
To me the current granularity with SHIFT/WIDTH (50 Hz) is fine. With LO/HI it is 100Hz, which is too high for LO. Also, LO often changes from 0.00 to 0.20 in one step, and taking it to 0.10 takes an extra step. Seems like a bug. Ignacy DOUGLAS ZWIEBEL wrote: Wayne said, We're planning to improve SHIFT granularity (etc.) in a future firmware release. I hope that this will be an added option in the CONFIG. menu. I like it the way it is now (fast)...at least for cw. I am really not looking forward to having to spin that tiny knob to move in 10hz steps. de Doug KR2Q ___ 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 -- View this message in context: http://n2.nabble.com/K3%3A-shift-granularity%3A-suggestion-tp2229337p2232275.html Sent from the Elecraft mailing list archive at Nabble.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] Config:Wattmeter
Using the latest 2.80 firmware, I find a problem I didn't have with prior versions. It may be unrelated to the firmware change. I have only been using the radio for two weeks. TECH MD set to ON and select CONFIG: WMTR LP or HP. The display shows a three digit number. When I hold TUNE, the display changes and shows SWR. The VFO A knob does nothing. I had set the wattmeter calibration earlier and all went as described in the manual. Firmware bug?? Operator error?? 73 de K1ESE John ___ 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] Ham band expansions in Norway
This is good news. Especially 4m. When can I expect to work you and is there now a market for my old 28-70MHz transverter or my XV50 conversions? Mike Jon K Hellan wrote: The Norwegian FCC equivalent is going to propose some additional and expanded ham radio bands. In the 160-6 m range, the changes are: 60m: 5260-5410 - not channelized. 12m: lower limit moves down to 24740. We're also getting a 500 kHz band and a 70 MHz band. These changes haven't taken effect yet, but hopefully Elecraft will take note, so that any necessary firmware updates and mods are ready in time. Those of you who are able to decipher Norwegian can find more info at http://nrrl.no/NewsArticle.asp?id=296;. Google translate's English version is entertaining, but more or less comprehensible. 73 Jon LA4RT ___ -- View this message in context: http://n2.nabble.com/Ham-band-expansions-in-Norway-tp2231983p2232293.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K3/100 input voltage and TX IMD
Ian, Your comment is worthy of consideration, but OTOH, I am of the 'old school' - amateur radio operators traditionally have not been bound by power limits imposed by the firmware, and many would be quite displeased if it were limited in the K3. We are supposed to share the bands as gentlemen and operate our equipment in such a manner as not to annoy our fellow hams. That does require a knowledge of our equipment, especially its limitations. I am fully aware that there are more and more 'appliance operators' on the ham bands who do not know the limits of their transmitters, and the only thing they seem to understand is the upper limit of the power knob. There is a name for those operators - I call them LIDS. While that term is usually applied to those who practice bad operating protocol, I choose to apply it also to those who operate their equipment improperly. RTFM is a requirement to know your equipment, but then I was schooled as a young engineer and made to understand that is a VERY important task 73, Don W3FPR Ian Maude wrote: Don Wilhelm wrote: Jim, You mention that the TX IMD gets worse when run at 120 watts. The K3 is specified at 100 watts. If you run at 120 watts, it is entirely possible that the TX IMD will then not be as specified. I don't understand why hams expect performance when a transmitter is pushed beyond it specifications. Why should I expect a transmitter specified for 100 watts to operate within its other specs at 120 watts? I don't because that is unreasonable! Trying to squeeze the last drop of power from a transmitter has long been known to create splatter and distortion products. Please don't do that. This was what I was saying in my post the other day Don. If the rig does not have good IMD over 100W and Elecraft say we should not run it over 100W, why does the radio allow me to turn it up? IMHO, the power level on SSB should stop at 100W. It is fine probably on CW to run 120W but on SSB and possibly datamodes, it should stop at 100W. It is only software. 73 Ian ___ 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] K3 Tuning aid on digi mode
I believe one thing that is still planned is to be able to scroll back a certain number of characters to see what was displayed. I don't know how large the scroll back buffer will be or when it will make its way to the top of the list. 73 Greg -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Julian, G4ILO Sent: Wednesday, January 28, 2009 3:57 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Tuning aid on digi mode W7BRS wrote: Really could very much use a MENU setting that quells VFO-B from reverting to anything other than decoded message when decoding is enabled. My short term memory has it's own QSB and after the other station wizzes by, if I don't copy it I lose it. I hate losing it. Maybe I already lost it.. Who are you again? Yes, since you mention it I would find that handy, too. My memory is hopeless, if I don't write something down the instant I heard it I've forgotten it. I fully appreciate the intent of the original design. I don't wish to take away the original design, just request that if so configured, the decoded message remains un-changed by the apparent time-out to bring back whatever the DISP writes to VFO-B. And for release MCU 4+, maybe pause, rewind and replay in text only, not KDVR-style. I don't know if Elecraft realizes how bees knees the decoder widget we made for fun turns out to be. It's cool. Make it cooler! And to nip it in the bud, I will not use a PC to 'cw-get'. I operate the K3 and just the K3. Yes, I've been extremely impressed with how good the CW decoder is. I have run it in parallel with Fldigi and I could not say one is better than the other. Any feature to preserve the decoded text would be useful for the RTTY and PSK decoders too. Although I guess you don't want to use a computer, I hope one day to be able to get the decoded text from the K3 and display it on the PC screen in KComm. (I know the firmware updater can do that, but it isn't possible to do that and get other info from the radio at the same time, which a logging program needs to do.) - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/K3-Tuning-aid-on-digi-mode-tp2227536p2231824.html Sent from the Elecraft mailing list archive at Nabble.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 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] [KX1] - Display dead after 30m/80m install
Ok Don. Will do. I have been helping him remotely. I will get over there and take a look at it. Just as a follow-up, he got his test readings to me. Here they are; Resistance Table U1 Called for 1k Pin 1 - .582 Pin 20 - .582 Pins 3, 4, 8, and 19 all had correct readings. D2 D3 s1 on 1k D2 D3 s1 off 10k Voltage Checks U1 1 - ok 2 - 0v (S/B 5v) 3 - 2.5v (S/B 4.6v) 4 - 2.5v (S/B 4.9v) 5 - 4.14 (S/B 4.9v - this is likely close enough) 6 - 4.90 (S/B 3.4v) 7 - 12 good readings 13 - 00v (S/B 5.0v) 14 - 2.46v (S/B 00v) 15 - 20 good readings 21 - .1v (S/B 5.0v) 22 - .1v (S/B 5.0v) 23 - 28 good readings U2 8 - 2.91v (S/B 1.32v) 14 - 1.27v (S/B 00v) I asked John to describe where the shoulders of the U1 chip were, in relation to the seats in the holder. He said the wide part of the pin, was seated all the way down in the socket. I am going to try to get by his place to give the thing a visual, but it sounds like he has good solder and U1 well seated. Dave Wilburn NM4M Don Wilhelm wrote: Dave, It sounds like U1 is not plugged in securely. When U1 is inserted into the socket, most of the narrow part of the IC pins are fully into the socket. It does take a bit of pressure to seat U1 in the machine pin socket. Make certain all the pins are started into the socket pins and then apply pressure with both thumbs on the IC body, fingers under the board and squeeze until the leads seat completely. If that does not cure the problems, look critically at the soldering. The solder should flow out to an almost invisible edge on both the solder pad and the component lead at each connection. If there is a defined edge to the solder, insufficient heat was applied during the soldering process. I am not certain why, but from the number of KX1 repairs that I have done, soldering problems are more common with the KX1 than other Elecraft kits. Perhaps builders are more hesitant to apply sufficient heat due to the more dense component placement, but somehow that does happen. If the solder connections look more like ' balls' than 'mountains' having a concave fillet, you can be certain insufficient heat was used during the soldering process, and the only cure is to wick away the excess solder and apply good solder using sufficient heat (700 to 750 deg F). 73, Don W3FPR David Wilburn wrote: I'm helping a friend troubleshoot a KX1. Unit was fine after build. Took unit apart and installed 30m/80m. Then 3rd digit did not work on display. He re-flowed some pins on the unit (I do not know which ones and he does not recall) and now the display is not functional at all. I started him checking through the resistance checks on page 26 of the document. Pins 1 20 of U1 has about 500 ohm on it, whether U1 is installed or not. We have been all through the voltages with D3/D2, U8, and U9. All the regulators seem good. Though I did caution him about running from a wall wart. His 12v seems a bit low. Around 11.5v. As a result of this, the voltage on pin 4 of U1 is a bit low at 3.5v. Also pin 14 is at 2.5v where it is supposed to be low. I find little odds and ends here that are not right, but if the display is not functional I would expect bigger issues. Some voltage off on clock inputs wouldn't seem the culprit. Also the ATU was not plugged in. We have worked through the troubleshooting tree, problem 00, I need to review with him where he is on problem 20. We looked through problem 26. No pins are bent on U1. All of the voltages were good except the 2 mentioned. I have not built a KX1, but built a K2. My thoughts are to go through the various resistance and voltage checks for the 3 build sections and see if we can make any sense of it. Am I headed in the right direction? Am I missing anything obvious since I am not familiar with the KX1? I'm hoping my friend (John, K6OWD) got setup on the list today. Dave Wilburn NM4M K2/100 S/N 5982 K3/100 S/N 766 ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.14/1918 - Release Date: 1/27/2009 7:26 AM ___ 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] K3/100 input voltage and TX IMD
I thought as HAMs we would know how to operate a rig within specs and not rely on manufacturing. I have been an amateur for 49 years and I learned early on that is was my responsibility to know how to operate and control my own signals regardless of rigs. That is why we learn theory. We have a mic gain control... just turn up your mic gain beyond its recommended settings and splatter all over the band... there's no difference than operating at 120 watts for a rig that is designed to operate at 100. (Do we buy an amp capable of 2500 w and operate it there? I hope not.) Besides, what good is it to run at 120 watts anyway? No noticeable difference at the receiving end. Let me control my rig, not Elecraft. 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods -Original Message- Why should I expect a transmitter specified for 100 watts to operate within its other specs at 120 watts? I don't because that is unreasonable! Trying to squeeze the last drop of power from a transmitter has long been known to create splatter and distortion products. Please don't do that. This was what I was saying in my post the other day Don. If the rig does not have good IMD over 100W and Elecraft say we should not run it over 100W, why does the radio allow me to turn it up? IMHO, the power level on SSB should stop at 100W. It is fine probably on CW to run 120W but on SSB and possibly datamodes, it should stop at 100W. It is only software. 73 Ian 73, Don W3FPR Jan Erik Holm wrote: Rick, and others Then I did bring K3 home to a PS that had 13.9V RX and 13.5V at TX, didn´t reflect much about this. I then started to measure IMD on the K3 and it didn´t look all that bad up to 80W but at 120W it was much worse. -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP, FISTS K2 #4044 |K3 #455 ___ 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] K3/100 input voltage and TX IMD
--- On Wed, 1/28/09, Ian Maude i...@gb7mbc.net wrote: This was what I was saying in my post the other day Don. If the rig does not have good IMD over 100W and Elecraft say we should not run it over 100W, why does the radio allow me to turn it up? IMHO, the power level on SSB should stop at 100W. It is fine probably on CW to run 120W but on SSB and possibly datamodes, it should stop at 100W. It is only software. 73 Ian Precisely. ___ 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] K3/100 input voltage and TX IMD
It's simple, The manual says this. Note: The K3 is capable of up to 120 W output on some bands. However, IMD and spurious products are specified at 100 W. This is the recommended maximum. You run your rig out of spec don't complain to Elecraft about it's performance. Maybe that particular sentence should be in a bigger font and bold. Obviously it isn't getting read. Of course that wouldn't do a thing about those folks who run their rigs all knobs full right. Don Wilhelm wrote: Ian, Your comment is worthy of consideration, but OTOH, I am of the 'old school' - amateur radio operators traditionally have not been bound by power limits imposed by the firmware, and many would be quite displeased if it were limited in the K3. We are supposed to share the bands as gentlemen and operate our equipment in such a manner as not to annoy our fellow hams. That does require a knowledge of our equipment, especially its limitations. I am fully aware that there are more and more 'appliance operators' on the ham bands who do not know the limits of their transmitters, and the only thing they seem to understand is the upper limit of the power knob. There is a name for those operators - I call them LIDS. While that term is usually applied to those who practice bad operating protocol, I choose to apply it also to those who operate their equipment improperly. RTFM is a requirement to know your equipment, but then I was schooled as a young engineer and made to understand that is a VERY important task 73, Don W3FPR -- R. Kevin Stover, ACØH ___ 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] K3/100 input voltage and TX IMD
Don Wilhelm wrote: Ian, Your comment is worthy of consideration, but OTOH, I am of the 'old school' - amateur radio operators traditionally have not been bound by power limits imposed by the firmware, and many would be quite displeased if it were limited in the K3. With respect Don, it is already limited :) It is limited to 120W. What is the point of doing that if the radio should not be used at that power? We are supposed to share the bands as gentlemen and operate our equipment in such a manner as not to annoy our fellow hams. That does require a knowledge of our equipment, especially its limitations. I do not disagree with that at all, in fact I applaud it! 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP, FISTS K2 #4044 |K3 #455 http://www.amateurradiotraining.org ___ 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] [KX1] - Display dead after 30m/80m install
Dave, Without the display operating, the voltages on U1 pins 3, 4, 5, and 21 through 28 will not be as expected, and who knows what the microprocessor is trying to do under those conditions. It is beginning to sound like a case of 'too much solder' creating solder bridges and covering up inadequately heated connections. You might suggest that he review the soldering tutorial on the Elecraft Builder's Resource page and compare his solder connections to the figures in that document. If there is too much solder, the only way I know to cure the problems is to remove it with solder wick or a de-soldering iron. That task takes 2 hours or more on a KX1 if it is required. 73, Don W3FPR David Wilburn wrote: Ok Don. Will do. I have been helping him remotely. I will get over there and take a look at it. Just as a follow-up, he got his test readings to me. Here they are; Resistance Table U1 Called for 1k Pin 1 - .582 Pin 20 - .582 Pins 3, 4, 8, and 19 all had correct readings. D2 D3 s1 on 1k D2 D3 s1 off 10k Voltage Checks U1 1 - ok 2 - 0v (S/B 5v) 3 - 2.5v (S/B 4.6v) 4 - 2.5v (S/B 4.9v) 5 - 4.14 (S/B 4.9v - this is likely close enough) 6 - 4.90 (S/B 3.4v) 7 - 12 good readings 13 - 00v (S/B 5.0v) 14 - 2.46v (S/B 00v) 15 - 20 good readings 21 - .1v (S/B 5.0v) 22 - .1v (S/B 5.0v) 23 - 28 good readings U2 8 - 2.91v (S/B 1.32v) 14 - 1.27v (S/B 00v) I asked John to describe where the shoulders of the U1 chip were, in relation to the seats in the holder. He said the wide part of the pin, was seated all the way down in the socket. I am going to try to get by his place to give the thing a visual, but it sounds like he has good solder and U1 well seated. Dave Wilburn NM4M Don Wilhelm wrote: Dave, It sounds like U1 is not plugged in securely. When U1 is inserted into the socket, most of the narrow part of the IC pins are fully into the socket. It does take a bit of pressure to seat U1 in the machine pin socket. Make certain all the pins are started into the socket pins and then apply pressure with both thumbs on the IC body, fingers under the board and squeeze until the leads seat completely. If that does not cure the problems, look critically at the soldering. The solder should flow out to an almost invisible edge on both the solder pad and the component lead at each connection. If there is a defined edge to the solder, insufficient heat was applied during the soldering process. I am not certain why, but from the number of KX1 repairs that I have done, soldering problems are more common with the KX1 than other Elecraft kits. Perhaps builders are more hesitant to apply sufficient heat due to the more dense component placement, but somehow that does happen. If the solder connections look more like ' balls' than 'mountains' having a concave fillet, you can be certain insufficient heat was used during the soldering process, and the only cure is to wick away the excess solder and apply good solder using sufficient heat (700 to 750 deg F). 73, Don W3FPR David Wilburn wrote: I'm helping a friend troubleshoot a KX1. Unit was fine after build. Took unit apart and installed 30m/80m. Then 3rd digit did not work on display. He re-flowed some pins on the unit (I do not know which ones and he does not recall) and now the display is not functional at all. I started him checking through the resistance checks on page 26 of the document. Pins 1 20 of U1 has about 500 ohm on it, whether U1 is installed or not. We have been all through the voltages with D3/D2, U8, and U9. All the regulators seem good. Though I did caution him about running from a wall wart. His 12v seems a bit low. Around 11.5v. As a result of this, the voltage on pin 4 of U1 is a bit low at 3.5v. Also pin 14 is at 2.5v where it is supposed to be low. I find little odds and ends here that are not right, but if the display is not functional I would expect bigger issues. Some voltage off on clock inputs wouldn't seem the culprit. Also the ATU was not plugged in. We have worked through the troubleshooting tree, problem 00, I need to review with him where he is on problem 20. We looked through problem 26. No pins are bent on U1. All of the voltages were good except the 2 mentioned. I have not built a KX1, but built a K2. My thoughts are to go through the various resistance and voltage checks for the 3 build sections and see if we can make any sense of it. Am I headed in the right direction? Am I missing anything obvious since I am not familiar with the KX1? I'm hoping my friend (John, K6OWD) got setup on the list today. Dave Wilburn NM4M K2/100 S/N 5982 K3/100 S/N 766 ___ 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.):
Re: [Elecraft] Mods documentation requests, please
Each of the mods has a way to find out if your radio has that mod installed. You can usually tell visually, but sometimes it requires an ohmmeter. 73, doug From: Robert Naumann w...@w5ov.com Date: Wed, 28 Jan 2009 06:00:28 -0600 I have a new K3 (s/n 2542). How can I find out what mods and updates were included in the construction of my radio? Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Faunt N6TQS +1-510-655-8604 Sent: Tuesday, January 27, 2009 11:46 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Mods documentation requests, please Hi, I've found that the mods are named inconsistently: On the instructions, it says: Elecraft K3 AF Stage Upgrade Instructions (LINE OUT and Speaker Amplifier), but on the Notes page, its called K3 AF Mod kit. Since there's another mod called K3 AF Output Mod Kit, it's a little confusing. Ideally they'd have numbers to make it easier to tell them apart. And I wonder if we can get a set of schematics made available with the changes on them? I'm sure the documentation exists inside Elecraft, and it'd be good to have them available to us. Thanks and 73, doug ___ 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 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] K3/100 input voltage and TX IMD
Don Wilhelm-4 wrote: You mention that the TX IMD gets worse when run at 120 watts. The K3 is specified at 100 watts. If you run at 120 watts, it is entirely possible that the TX IMD will then not be as specified. I don't understand why hams expect performance when a transmitter is pushed beyond it specifications. Typical Citizen Band mentality (knobs fully to the right) plus some on this list are well known QRO types (i.e. VERY big amps need more drive than legal amps). 73, Bill -- View this message in context: http://n2.nabble.com/Re%3A-K3-100-input-voltage-and-TX-IMD-tp2230205p2232778.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K3/100 input voltage and TX IMD
- Original Message - From: Bill W4ZV btipp...@alum.mit.edu Typical Citizen Band mentality (knobs fully to the right) plus some on this list are well known QRO types (i.e. VERY big amps need more drive than legal amps). ... a remark tossed off by Ian Gillan of Deep Purple during a concert in Japan: Could we have everything louder than everything else? Probably an RTTY contester? Simon Brown, HB9DRV www.ham-radio-deluxe.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
Re: [Elecraft] K3/100 input voltage and TX IMD
With respect Don, it is already limited :) It is limited to 120W. What is the point of doing that if the radio should not be used at that power? I can't speak for the K3 designer(s), but not all modes elevate or produce IM at the upper end of the output power curve. CW is one such mode, although other non-IM artifacts may be possible above 100W. There are times when driving a low-gain, GG amplifier (e.g., 3CX1200 w/ untuned input) when the operator wants to drive it to its maximum capability but in order to do so, something a bit more than 100W is required. It's not worth getting into a discussion as to whether the added power increase from the extra drive is worth it -- but some ops want to utilize their amps to the fullest capability when conditions permit. But that same op needs to understand that in IMD-generating modes like SSB, the K3's power needs to be throttled back to specified limits. When running an amp, s/he may safely achieve 1500W in CW, but must then settle for something less (e.g., 1300W) in SSB mode. Paul, W9AC ___ 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] N2CQ QRP Contest Calendar: Feb 2009
~ N2CQ QRP CONTEST CALENDAR February 2009 ~ 80 METER FOXHUNT (CW) *** QRP Contest *** Each Tuesday to Mar 24 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ 40 METER FOXHUNT (CW) *** QRP Contest *** Each Thursday to March 26 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ EPC WW DX Contest (BPSK125) ... 10W LP Jan 31, 1200z to Feb 1, 1200z Rules: http://www.epcwwdx.srars.org/index.php/contest-rules.html ~ QRP ARCI Fireside Sprint (SSB) ...QRP Contest! Feb 1, 2000z to 2359z Rules: http://www.qrparci.org/ ~ Adventure Radio Spartan Sprint (CW) ... QRP Contest! EST: Feb 2, 9 PM to 11 PM (First Monday each month) UTC: Feb 3, 0200z to 0400z Rules: http://arsqrp.pbwiki.com:80/Spartan+Sprints ~ Vermont QSO Party (CW/Ph/Dig) Feb 7, z to Feb 8, 2400z Rules: http://www.w1bd.org/ ~ 10-10 Int. Winter Phone QSO Party ... QRP Category Feb 7, 0001z to Feb 8, 2359z Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf ~ Black Sea Cup International (CW/SSB) ... QRP Category Feb 7, 1200z to 2400z Rules: http://bscc.ucoz.ru/index/0-21 ~ Worldwide Peace Messenger Cities (CW/SSB)... Feb 7, 1200z to Feb 8, 1200z Rules: http://www.s59dcd.si/english/ ~ Minnesota QSO Party (All) ... QRP Category Feb 7, 1400z to 2359z Rules: http://www.w0aa.org/ ~ FYBO Winter QRP Field Day (CW/SSB) ... QRP Contest! Feb 7, 1400z to 2400z Rules: http://www.azscqrpions.org ~ AGCW Straight Key QSO Party (CW 80M) ... QRP Category Feb 7, 1600z to 1900z Rules: http://www.agcw.org/en/?Contests:Straight_Key_Party ~ British Columbia QSO Challenge (CW/PH/Dig) ... QRP Category Feb 7, 1600z to Feb 8, 0359z Rules: http://www.deltaamateurradio.com/BC%20QSO%20CONTEST.htm ~ New Mexico QSO Party (CW/PH/Dig) ... QRP Category Feb 7, 1700z to Feb 8, 2350z Rules: http://pages.swcp.com/~n5zgt/nmqsoparty/index.html ~ Delaware QSO Party (All) ... QRP Category Feb 7, 1700z to Feb 8, 0500z Feb 8, 1300z to Feb 9, 0100z Rules: http://www.fsarc.org/DEQSO.html ~ MEXICO RTTY INTERNATIONAL CONTEST Feb 7, 1800z to Feb 8, 1759z Rules: http://www.fmre.org.mx/concursos/2009/rtty/rules-rtty-2009-eng.pdf ~ SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category Feb 8, z to 2359z Rules: http://www.skccgroup.com/sprint/wes/ ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EST: Feb 10, 8:30 PM to 10:30 PM UTC: Feb 11, 0130Z to 0330Z Rules: http://www.arm-tek.net/~yoel/contests.html ~ North American Sprint (CW) ... QRP Category Feb 8, z to 0400z Rules: http://www.ncjweb.com/sprintrules.php ~ Valentine Sprint (PODXS) (PSK-31) ... QRP Category Feb 13, 2000 to Feb 16, 0200 LOCAL TIME Rules: http://www.podxs070.com/ ~ CQ WW RTTY WPX Contest ... Low Power Category Feb 14, z to Feb 15, 2400z Rules: http://www.cqwpxrtty.com/ ~ Northern New York Section QSO Party (All) Feb 14, z to Feb 15, 2359z Rules: http://www.nnyara.org/ ~ New Hampshire QSO Party (Ph/CW/Dig) ... QRP Category Feb 14, 0001z to Feb 15, 0001z Rules: http://www.w1fz.org/ ~ Dutch PACC Contest (SSB/CW) ... QRP Category Feb 14, 1200z to Feb 15, 1200z Rules: http://pacc.veron.nl/ ~ Louisiana QSO Party (Ph/CW/Dig) Feb 14, 1500z to Feb 15, 0300z Rules: http://www.qsl.net/kd5wdy/LAQSO_/laqso_.html ~ FISTS Winter Sprint (CW of course) ...QRP Category Feb 14, 1700z to 2100z Rules: http://www.fists.org/sprints.html
Re: [Elecraft] AC supply for KX-1
I have not experienced any noise issues with mine, but possibly there are variations between units (not an unknown occurrence with MFJ equipment). I have mainly used it on 20 meters and up so don't know how it might do on 160 or 80 (noise issues are often worse on the lower bands). Milestone Technologies (N1FN) sells the CUP36, a similar supply which is popular among QRP operators http://www.mtechnologies.com/cup/. The web site indicates their tests showed it to be pretty clean, but the only review on eham.net mentions noise problems with that supply. I searched a bit before buying my MFJ-4102 in 2004, hoping to find one that put out a little higher voltage so I could use it only to charge the internal battery in my K2 (which would avoid hash issues), but was unable to find a suitable supply at that time. 73, Bob, N7XY On Jan 27, 2009, at 10:49 PM, Sante - IK0HBN wrote: The comments on Eham.net are very bad, due to the noise and hash that PS develops (MFJ-4103). Hope this help. Sante At 03.33 28/01/2009, you wrote: On Jan 27, 2009, at 4:41 PM, dbellw...@aol.com wrote: I'm looking for a very small, lightweight 110/220 supply for the KX-1. Suggestions? I have the MFJ-4103 switcher which weighs 10 oz. I use it with my K2, but I'm sure it would be fine with a KX-1, as well. Bob, N7XY ___ 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 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 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] Need Help with XG1
I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. 73, Pete N4ZR the World Contest Station Database is back, and updated daily www.conteststations.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
Re: [Elecraft] Need Help with XG1
Thanks for the idea - I removed both D1 and D2 from the circuit - no improvement. The signal is quite audible (in the 50 uv switch position, and barely audible in the 1 uV position, but doesn't move an S-meter that was formerly tested with it and registered S9. Anyone else? I know that if I had a scope I could measure the p-p voltage coming out of the oscillator, but I don't. 73, Pete N4ZR At 11:49 AM 1/28/2009, Philip Carter wrote: See if maybe you shorted the protection led. --- On Wed, 1/28/09, Pete Smith n...@contesting.com wrote: From: Pete Smith n...@contesting.com Subject: [Elecraft] Need Help with XG1 To: elecraft@mailman.qth.net Date: Wednesday, January 28, 2009, 11:19 AM I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. 73, Pete N4ZR the World Contest Station Database is back, and updated daily www.conteststations.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 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] K3/100 input voltage and TX IMD
It would be interesting to check the voltage drop from the APP on the K3 to the cathode of D11 ( component of KPA3) when under a 100 watt load. 73 Gil K8EAG - Original Message - From: Rick Shindley To: elecraft@mailman.qth.net Sent: Tuesday, January 27, 2009 11:09 PM Subject: Re: [Elecraft] K3/100 input voltage and TX IMD A solid state linear RF PA will generate more IMD if the supply voltage sags on current peaks. How much distortion vs voltage change depends on the amplifier design and components used. Someone reported here that he increased the supply voltage a bit and noted a 1 to 2 dB reduction in TX IMD. He also reported a 400 mV drop in the supply at the back of his K3/100 during Tx. Increasing the supply voltage but still having a 400mV droop and yet seeing a slight reduction in TX IMD hints at the sensitivity of the relationship between supply voltage and TX IMD. I measured the voltage drop at the Power Pole connector at the back of my K3/100 while transmitting 100W CW out on 14.350 MHz into a dummy load. I found a 270mV drop due to the standard length power cable from Elecraft (IR loss) and 20mV due to the supply (Astron RM-35) load regulation capability for a total droop of 290mV. So on SSB voice peaks or CW at 100W there is at least a 290 mV (and some say 400mV) drop in the supply voltage to the radio. It may even be a bit more inside the rig at the PA due to connector contact resistance and trace routing on the PCB. The slight drop in voltage will contribute to the amount of distortion in the output. Could this be the cause of the reported variations in measured TX IMD among rigs? Rick KC0OV -- ___ 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 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] Need Help with XG1
I don't have mine in front of me, but it is the SMA device that is on there that you need to replace. It gets blown out. I'll grab the docs real quick and follow-up. Dave Wilburn NM4M Pete Smith wrote: I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. 73, Pete N4ZR the World Contest Station Database is back, and updated daily www.conteststations.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 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] Need Help with XG1
Have you checked for any damage to the circuit board traces? If enough power was applied to fry those resistors despite D1 D2 being in the circuit, maybe some of the traces were damaged as well. I would think it would be visually obvious, but maybe not. 73 -- Joe KB8AP On Jan 28, 2009, at 8:19 AM, Pete Smith wrote: I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. ___ 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] Wanted: LP-Pan
Wanted: LP-Pan Please respond off list to hjohnc at gmail dot com 73 de K1ESE John ___ 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] Need Help with XG1
It appears I was thinking of another device. I would first suspect Q1. Dave Wilburn NM4M David Wilburn wrote: I don't have mine in front of me, but it is the SMA device that is on there that you need to replace. It gets blown out. I'll grab the docs real quick and follow-up. Dave Wilburn NM4M Pete Smith wrote: I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. 73, Pete N4ZR the World Contest Station Database is back, and updated daily www.conteststations.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 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 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] SHIFT pitch
Hi Don, Thanks for info, I have tried it and have let it do the math as you suggested. The problem comes when you are operating in a contest and QRM both above and below is constantly changing. Having both LO and HI CUT to tweek during RX periods ONLY is just too restrictive and no-one I have spoken to in the above situation uses LO and HIGH CUT for this reason. If the primary function of NORM didn't change the roofing filter as well or adjustment were allowed during tx then the situation would be better. Cancelling any redundant settings of LO and HIGH CUT in one button push would be more easily accomplished and would become useable for contests. Everyone I have spoken to are working around these firmware quirks by using the harder to get at secondary feature of the NORM button to select a known SHIFT and WIDTH setting during RX whilst simultaneously trying to type calls. It's a hassle and detracts from the operating enjoyment of the K3 and is why I mentioned it. Doug GM0ELP Don Wilhelm-4 wrote: Doug, I always use the HiCut/LoCut for SSB and just forget about the NORM settings. The center frequency will be automatically set and it is quick to turn the HI knob just enough to reduce interference - the roofing filters will switch in automatically as required to support the DSP bandwidth. -- View this message in context: http://n2.nabble.com/SHIFT-pitch-tp2226432p2233936.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K3/100 input voltage and TX IMD
It would be interesting to check the voltage drop from the APP on the K3 to the cathode of D11 ( component of KPA3) when under a 100 watt load. 73 Gil K8EAG Cascading APP connectors can add up to relevant IR loss. For example, in my installation, the power supply and a 55-AH gel-cell battery (back-up) are routed to West Mountain PowerGate. The PowerGate feeds an 8-port APP manifold. One manifold port feeds the K3. That's 5 (count 'em) APP connector sets in the power supply path. At ~ 20A, the voltage drop at the K3 is nearly one volt when using #10 AWG wire -- and the reason why I am now using an industrial-grade power supply with remote sensing terminals that makes up for the IR loss on demand. The other devices on the manifold can easily withstand the variation. Paul, W9AC ___ 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] Need Help with XG1
At 10:53 AM 28/01/09, you wrote: and barely audible in the 1 uV position, but doesn't move an S-meter that was formerly tested with it and registered S9. Do you mean you used to get S9 with a 1uV signal? I would think the 1uV signal would be close to the noise level. John k7up ___ 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] Need Help with XG1
Of course, change the interconnecting cable or adapter between the XG1 and your rig. Coincidental failures are rare, but not impossible. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pete Smith Sent: Wednesday, January 28, 2009 9:54 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Need Help with XG1 Thanks for the idea - I removed both D1 and D2 from the circuit - no improvement. The signal is quite audible (in the 50 uv switch position, and barely audible in the 1 uV position, but doesn't move an S-meter that was formerly tested with it and registered S9. Anyone else? I know that if I had a scope I could measure the p-p voltage coming out of the oscillator, but I don't. 73, Pete N4ZR At 11:49 AM 1/28/2009, Philip Carter wrote: See if maybe you shorted the protection led. --- On Wed, 1/28/09, Pete Smith n...@contesting.com wrote: From: Pete Smith n...@contesting.com Subject: [Elecraft] Need Help with XG1 To: elecraft@mailman.qth.net Date: Wednesday, January 28, 2009, 11:19 AM I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. 73, Pete N4ZR the World Contest Station Database is back, and updated daily www.conteststations.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 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 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] Need Help with XG1
Pete, Do you have the proper voltage on Q1? Check for 1.22 volts at the cathode of U2. Also check the value of R3 and R3 with your ohmmeter. It sounds like you have replaced everything important, but if you had enough RF to fry the resistors, you may have damaged the switch contacts at the same time. You should be able to determine the resistance through the switch with your ohmmeter. Do that for both poles, and both switch positions. 73, Don W3FPR Pete Smith wrote: Thanks for the idea - I removed both D1 and D2 from the circuit - no improvement. The signal is quite audible (in the 50 uv switch position, and barely audible in the 1 uV position, but doesn't move an S-meter that was formerly tested with it and registered S9. Anyone else? I know that if I had a scope I could measure the p-p voltage coming out of the oscillator, but I don't. 73, Pete N4ZR ___ 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] AC supply for KX-1
Dave, I don't know what your intended use is, but may I be bold enough to suggest you use a small SLA battery and keep it topped off with a low current battery charger. I know that does not conform to lightweight, but it certainly will provide all the power the KX1 will need, and it should be good clean power. 73, Don W3FPR dbellw...@aol.com wrote: I'm looking for a very small, lightweight 110/220 supply for the KX-1. Suggestions? 73, Dave, W6AQ ___ 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] A plug for Nifty! accessories
Hi all, I just purchased two items from Nifty! that are really outstanding: the Band Ops Guide and the DX Field Reference. Yes, you can get this info off the web or from various other sources. But their guides are compact, easy to read, and very well organized. http://www.niftyaccessories.com/ (Elecraft has no financial or other ties to Nifty! Accessories. I just like their stuff.) 73, Wayne N6KR --- http://www.elecraft.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] K1 build Alignment and Test Part II
Just did all the resistance checks after visual inspection. About to do DC measurements and I note BLANK LCD...it is lit but no error message. Had the LCD working during Alignment and Test Part I Where should I begin my quest ? Thanks John AB8O ___ 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] K1 build Alignment and Test Part II
John, The most obvious is to begin looking critically at your soldering. Things that worked the last time it was tried and now do not work usually add up to a bad or intermittent connection. Check the front panel board over carefully, and examine pin 1 of each IC, the round solder pad at the pin 1 location is often skipped and later found unsoldered. 73, Don W3FPR John Wiener wrote: Just did all the resistance checks after visual inspection. About to do DC measurements and I note BLANK LCD...it is lit but no error message. Had the LCD working during Alignment and Test Part I Where should I begin my quest ? Thanks John AB8O ___ 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] Antenna switching [K3]
I put up a vertical yesterday to begin playing with diversity mode. When I installed the sub receiver I opted to connect the Aux RF BNC connector. Now I am not sure I made the right decision for me as I want to be able to easily switch transmit and receive antennas. Of course then my 20M dipole and my 6 M vertical would be just sitting there unconnected and to switch bands I have to plug new cables in. I have more antennas planned for the future and I may try some kind of low noise receive-only antenna. In the old days a simple antenna switch would be all I need but now I have multiple simultaneous antennas to switch and I need to make sure I don't transmit out of Antenna 1 into the Aux Rx port ;-) So now I am considering building some kind of well isolated Antenna switch matrix. I am interested in what others are doing. If I use relays, how does one build for good cross-talk isolation between antennas? Maybe all I need is two or three simple antenna switches. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ 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] A plug for Nifty! accessories
Wayne has beaten me to commenting about Nifty! accessories. (:-)) Had planned to post the following anyway ... (:-) Rose has just received several samples of Bernie's products to use in investigating the possibility of offering a case or wallet-like carrier for his publications. They -are- nicely done! 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 ___ 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] CW activation while in USB mode...
Hi Don, Don Wilhelm wrote: Lance, Getting CW+SSB to work with PTT applied is on the list, but may be some time in coming. It is encouraging to learn that the feature will eventually be available to those of us who use footswitches and/or sequencers to enable the XMIT on the K3. I probably won't have a need for this feature until summer Es season anyway, so I am happy to wait on this one. Although it may not help with the current CW+SSB situation, you might want to consider starting your sequencer with the K3 KEYOUT and use TX INH to hold off RF until the sequencer finishes. Doing so will allow you to begin the sequence with the normal K3 outputs rather than an isolated 'start sequencer' signal from a footswitch or a manual switch (i.e. normal PTT or VOX to the K3 would start the sequencer, but the K3 would not tramsmit RF until the sequencer completes). 73, Don W3FPR Yes, that certainly seems like another way to do it, although somewhat indirect. I think rather than rewire everything in the shack, I will keep the current standard sequencer setup so I can use my IC746 on 2m EME without blowing things up. I look forward to the updated firmware that will permit the SSB+CW mode while in the PTT mode ;-) MNI TNX and VY 73, Lance Lance Collister wrote: Hello Don, Thank you very much for the clarification. I guess I just dont' have that option available to me, since I use a sequencer to activate the PTT line of the K3. Don Wilhelm wrote: Lance and all, I was mistaken (I was prompted to try it with CW+SSB). CW in SSB seems to only work using the hit the key method. Once PTT is active, it will not work at all, only the SSB inputs work. Too bad for me, I guess :-( I cannot duplicate your setup since I do not have your sequencer controls here. Are you using TX INH as well as the PTT input to the K3 from your sequencer? 73, Don W3FPR No, I am just using the sequencer to activate the K3 PTT after all the other relays and equipment. It might have something to do with which was the grounded side of my KEY that was inserted into the KEY jack in the back of the rig, but I don't know for sure about that. I will try to experiment with that when I have a chance. Thanks very much for your clarification. Anyway, the K3 is working properly for digital modes input in through the mic jack again now that I have opted out of the SSB+CW option. TNX and VY 73, Lance Don Wilhelm wrote: Lance, Do you have your K3 set to PTT or VOX? If you have it set to PTT, then the PTT must be closed before keying can begin - that is true whether in CW+SSB or not. 73, Don W3FPR Lance Collister wrote: I am not sure if this is a bug or I am just doing something wrong, but I selected the + option yesterday to be able to send CW while in the USB mode, and plugged my external keyer into the KEY jack on the back of the K3. I tried it, but never could seem to get the rig to send CW while I was in USB mode. However, today when I started up trying to run a 6m EME sked, I found that when the PTT line was closed by my sequencer, the K3 started transmitting immediately and I heard a sidetone in the speaker. All while the tones from the computer also were coming through to the mic input. It was as if the rig was trying to send a CW carrier at the same time as SSB or something! I finally figured out that it was nothing in the latest firmware download, but that I could get things back to normal by changing the CW option back to -. Anybody have any idea what is going on? TNX and VY 73, Lance ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.14/1918 - Release Date: 1/27/2009 7:26 AM No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.14/1918 - Release Date: 1/27/2009 7:26 AM -- Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8) P.O. Box 73 Frenchtown, MT 59834 USA QTH: DN27UB TEL: (406) 626-5728 URL: http://www.bigskyspaces.com/w7gj 2m DXCC #11, 6m DXCC #815 ___ 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.):
Re: [Elecraft] SHIFT pitch
Hi Doug and Don, This is one aspect of the K3 on SSB that I think can be improved. I agree that in a contest there is just not enough time to tweak the SSB filters for maximum intelligibility. HI CUT without an accompanying LO CUT does not work very well to improve intelligability. It would help if the WIDTH control would move the centre frequency down/up by a fraction of the bandwidth change (approx. 25Hz per KHz). I suggested some time ago that the XFIL button was not much use on SSB. Personal choice SSB filter settings could be saved and be recalled by repeated pressing of the XFIL button. For general listening I use macros and the K3 Utility to recall any number of filter settings. I would rather not go to the computer to accomplish this. My fingers just could not control those little knobs for filter adjustment (poor eyesight and insensitive fingers) so I fitted 2 larger knobs (3/4 in dia and 7/8 in long). They are a bit big but I no longer nudge the VFO knob. I would also have preferred a positive detent on the filter encoders. 73 Tony Fegan VE3QF K3 #137 GM0ELP wrote: Hi Don, Thanks for info, I have tried it and have let it do the math as you suggested. The problem comes when you are operating in a contest and QRM both above and below is constantly changing. Having both LO and HI CUT to tweek during RX periods ONLY is just too restrictive and no-one I have spoken to in the above situation uses LO and HIGH CUT for this reason. If the primary function of NORM didn't change the roofing filter as well or adjustment were allowed during tx then the situation would be better. Cancelling any redundant settings of LO and HIGH CUT in one button push would be more easily accomplished and would become useable for contests. Everyone I have spoken to are working around these firmware quirks by using the harder to get at secondary feature of the NORM button to select a known SHIFT and WIDTH setting during RX whilst simultaneously trying to type calls. It's a hassle and detracts from the operating enjoyment of the K3 and is why I mentioned it. Doug GM0ELP Don Wilhelm-4 wrote: Doug, I always use the HiCut/LoCut for SSB and just forget about the NORM settings. The center frequency will be automatically set and it is quick to turn the HI knob just enough to reduce interference - the roofing filters will switch in automatically as required to support the DSP bandwidth. ___ 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] SHIFT pitch
On Jan 28, 2009, at 1:32 PM, Tony Fegan VE3QF wrote: I suggested some time ago that the XFIL button was not much use on SSB. Personal choice SSB filter settings could be saved and be recalled by repeated pressing of the XFIL button. You can use the I/II floating presets if you have two crystal filter/DSP filter setups you prefer during contests. They were intended for exactly this purpose -- quickly adjusting the passband to accommodate changing conditions. Just hold I/II to switch between them (adjust DSP controls as required for each one). These settings are saved per-mode. 73, Wayne N6KR --- http://www.elecraft.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
Re: [Elecraft] K3/100 input voltage and TX IMD
Have you measured the transient response time? Should be easy to see a 1V transient with a modest scope. David G3UNA It would be interesting to check the voltage drop from the APP on the K3 to the cathode of D11 ( component of KPA3) when under a 100 watt load. 73 Gil K8EAG Cascading APP connectors can add up to relevant IR loss. For example, in my installation, the power supply and a 55-AH gel-cell battery (back-up) are routed to West Mountain PowerGate. The PowerGate feeds an 8-port APP manifold. One manifold port feeds the K3. That's 5 (count 'em) APP connector sets in the power supply path. At ~ 20A, the voltage drop at the K3 is nearly one volt when using #10 AWG wire -- and the reason why I am now using an industrial-grade power supply with remote sensing terminals that makes up for the IR loss on demand. The other devices on the manifold can easily withstand the variation. Paul, W9AC ___ 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] FSK problem with my K3
Hi all, First of all, I prefer to use FSK instead of AFSK. ASFK works fine. My problem is that I have the wrong polarity coming out of my rtty program (fldigi under linux). It is hooked up to pin 1 of the ACC 15 pin connector. It is changing polarity fine (looking at it with my oscope. How can I invert it in the K3? I tried the CONFIG param FSK POL and that does not do it. I read an email on the archives saying that the config item FSK POL does not work. If that is the case, when will it be fixed? I have the latest code 2.78. On the air I get no print from other hams. As a test I use my K2 with another pc to check and ASFK is fine by garbage with FSK. Jerry, N2UZ ___ 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] FSK problem with my K3
Hi Jerry, If your program doesn't provide any way to invert the polarity, I'll try to get FSK POL working for you. It had fallen off the radar because all the applications in use had a way to do this. tnx Wayne N6KR On Jan 28, 2009, at 1:47 PM, n2uz wrote: Hi all, First of all, I prefer to use FSK instead of AFSK. ASFK works fine. My problem is that I have the wrong polarity coming out of my rtty program (fldigi under linux). It is hooked up to pin 1 of the ACC 15 pin connector. It is changing polarity fine (looking at it with my oscope. How can I invert it in the K3? I tried the CONFIG param FSK POL and that does not do it. I read an email on the archives saying that the config item FSK POL does not work. If that is the case, when will it be fixed? I have the latest code 2.78. On the air I get no print from other hams. As a test I use my K2 with another pc to check and ASFK is fine by garbage with FSK. Jerry, N2UZ ___ 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 --- http://www.elecraft.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
Re: [Elecraft] Antenna switching [K3]
Mike, take a look at Array Solutions and see if they don't have an offering that either fits your needs or gives you some ideas to work with. Willis 'Cookie' Cooke K5EWJ --- On Wed, 1/28/09, Mike Scott m...@paxsen.com wrote: From: Mike Scott m...@paxsen.com Subject: [Elecraft] Antenna switching [K3] To: Elecraft@mailman.qth.net Date: Wednesday, January 28, 2009, 12:30 PM I put up a vertical yesterday to begin playing with diversity mode. When I installed the sub receiver I opted to connect the Aux RF BNC connector. Now I am not sure I made the right decision for me as I want to be able to easily switch transmit and receive antennas. Of course then my 20M dipole and my 6 M vertical would be just sitting there unconnected and to switch bands I have to plug new cables in. I have more antennas planned for the future and I may try some kind of low noise receive-only antenna. In the old days a simple antenna switch would be all I need but now I have multiple simultaneous antennas to switch and I need to make sure I don't transmit out of Antenna 1 into the Aux Rx port ;-) So now I am considering building some kind of well isolated Antenna switch matrix. I am interested in what others are doing. If I use relays, how does one build for good cross-talk isolation between antennas? Maybe all I need is two or three simple antenna switches. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ 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 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] Antenna switching [K3]
So is a KRC2 in order? 73 de M0XDF, K3 #174 -- Don‘t complain. Nobody will understand. Or care. And certainly don‘t try to fix the situation yourself. It‘s dangerous. Leave it to a highly untrained, unqualified, expendable professional. On 28 Jan 2009, at 22:14, WILLIS COOKE wrote: Mike, take a look at Array Solutions and see if they don't have an offering that either fits your needs or gives you some ideas to work with. Willis 'Cookie' Cooke K5EWJ --- On Wed, 1/28/09, Mike Scott m...@paxsen.com wrote: From: Mike Scott m...@paxsen.com Subject: [Elecraft] Antenna switching [K3] To: Elecraft@mailman.qth.net Date: Wednesday, January 28, 2009, 12:30 PM I put up a vertical yesterday to begin playing with diversity mode. When I installed the sub receiver I opted to connect the Aux RF BNC connector. Now I am not sure I made the right decision for me as I want to be able to easily switch transmit and receive antennas. Of course then my 20M dipole and my 6 M vertical would be just sitting there unconnected and to switch bands I have to plug new cables in. I have more antennas planned for the future and I may try some kind of low noise receive-only antenna. In the old days a simple antenna switch would be all I need but now I have multiple simultaneous antennas to switch and I need to make sure I don't transmit out of Antenna 1 into the Aux Rx port ;-) So now I am considering building some kind of well isolated Antenna switch matrix. I am interested in what others are doing. If I use relays, how does one build for good cross-talk isolation between antennas? Maybe all I need is two or three simple antenna switches. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ 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] Need Help with XG1
I have an XG-1 Receiver Test Oscillator which I must have accidentally zapped with RF somehow (I don't know when) because the output resistors R6-8 were fried. I replaced them, as well as R4 and R5, C4 and the transistor. The slide switch in the output tests ok. When I turn the XG-1 on, I can very faintly hear its signal, so it appears that the oscillator is working, but the output level is nowhere near what it should be. Voltage at the top of C3 is 1.23 volts. Anyone have any ideas where else I could look? Elecraft tech support was helpful but ultimately gave up. Pete, try replacing D1 and/or D2. One or both is probably shorted. 73, Charlie, N0TT___ 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] A plug for Nifty! accessories
I wish you would stop doing stuff like this Wayne. I just visited their site and ended up ordering 5 items ;) 73 Craig AC0DS ___ 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] Antenna switching [K3]
Mike, Relays are the answer IMHO. Take a look at the A Low-Cost Remote Antenna Switch by Bill Smith KO4NR in QST April 2005. ARRL measured the isolation at 60 dB except for the two innermost ports which were 50 dB at 28 MHz. FAR circuits has boards for this project. I built 3 for switching my many HF antennas down to 3 runs of coax into the shack (not all the ports are used, I have only 12 HF antennas to switch. As for preventing transmit out of one K3 antenna port into your Aux Rx port, rotary control switches will likely help since a simple rotary switch will only activate one relay of any set. If you have more than one set of remote relays and you connect any one antenna to 2 or more of the remote switches, then you could transmit back into the receiver, so connect any one antenna to only one relay port and make all the other arrangements with switches to the relay coils. Yes, when I get around to completing the complete system, the KRC2 will control the selection from the K3 automatically - the ACC outputs select between 3 sets of antennas. 73, Don W3FPR Mike Scott wrote: I put up a vertical yesterday to begin playing with diversity mode. When I installed the sub receiver I opted to connect the Aux RF BNC connector. Now I am not sure I made the right decision for me as I want to be able to easily switch transmit and receive antennas. Of course then my 20M dipole and my 6 M vertical would be just sitting there unconnected and to switch bands I have to plug new cables in. I have more antennas planned for the future and I may try some kind of low noise receive-only antenna. In the old days a simple antenna switch would be all I need but now I have multiple simultaneous antennas to switch and I need to make sure I don't transmit out of Antenna 1 into the Aux Rx port ;-) So now I am considering building some kind of well isolated Antenna switch matrix. I am interested in what others are doing. If I use relays, how does one build for good cross-talk isolation between antennas? Maybe all I need is two or three simple antenna switches. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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] SHIFT pitch
This is what I do on SSB. Works great here. 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods On Jan 28, 2009, at 1:32 PM, Tony Fegan VE3QF wrote: I suggested some time ago that the XFIL button was not much use on SSB. Personal choice SSB filter settings could be saved and be recalled by repeated pressing of the XFIL button. .. Just hold I/II to switch between them (adjust DSP controls as required for each one). These settings are saved per-mode. 73, Wayne N6KR ___ 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] A plug for Nifty! accessories
What about the Nifty K3 operating manual? Anyone use it who can comment or recommend? Might be handy for portable operation. Mike, AC5P --- On Wed, 1/28/09, wayne burdick n...@elecraft.com wrote: From: wayne burdick n...@elecraft.com Subject: [Elecraft] A plug for Nifty! accessories To: Elecraft Reflector elecraft@mailman.qth.net Date: Wednesday, January 28, 2009, 1:52 PM Hi all, I just purchased two items from Nifty! that are really outstanding: the Band Ops Guide and the DX Field Reference. Yes, you can get this info off the web or from various other sources. But their guides are compact, easy to read, and very well organized. http://www.niftyaccessories.com/ (Elecraft has no financial or other ties to Nifty! Accessories. I just like their stuff.) 73, Wayne N6KR --- http://www.elecraft.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 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] Ham band expansions in Norway
Hello Group, This is also a possibility of 70Mhz in Hong Kong. I am looking forward to a conversion kit for turning XV50 into XV70. cheers, Johnny Siu VR2XMC --- 2009年1月28日 星期三，AD6XY m.j.wil...@rl.ac.uk 寫道﹕ 寄件人: AD6XY m.j.wil...@rl.ac.uk 主題: Re: [Elecraft] Ham band expansions in Norway 收件人: elecraft@mailman.qth.net 日期: 2009 1 28 星期三 下午 9:41 This is good news. Especially 4m. When can I expect to work you and is there now a market for my old 28-70MHz transverter or my XV50 conversions? Mike Jon K Hellan wrote: The Norwegian FCC equivalent is going to propose some additional and expanded ham radio bands. In the 160-6 m range, the changes are: 60m: 5260-5410 - not channelized. 12m: lower limit moves down to 24740. We're also getting a 500 kHz band and a 70 MHz band. These changes haven't taken effect yet, but hopefully Elecraft will take note, so that any necessary firmware updates and mods are ready in time. Those of you who are able to decipher Norwegian can find more info at http://nrrl.no/NewsArticle.asp?id=296;. Google translate's English version is entertaining, but more or less comprehensible. 73 Jon LA4RT ___ -- View this message in context: http://n2.nabble.com/Ham-band-expansions-in-Norway-tp2231983p2232293.html Sent from the Elecraft mailing list archive at Nabble.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 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!___ 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] K3/100 input voltage and TX IMD
I did my own little unscientific IMD check yesterday. I connected the K3 to my Cantenna and monitored with my IC-706IIg on the same desk and same power supply. I used a bit of wire in the 706's antenna terminal sufficient to give an S9 or higher received signal strength. Had the K3 at 100 watts and mic gain to hit 100W on peaks. Then tuned up and down from my signal several kHz each way on the 706 listening for splatter as I transmitted. Didn't hear any, unless it was faint. Of course, I hear my signal changing in pitch and diminishing in strength as I moved the receiver away, but I hope I know what that sounds like. I did this on 40 meters and 15 meters, and with CMP on and off. I did it again at 50 and 80 watts and didn't notice any difference. Also checked at 13.8V and 14.5V supply voltage and didn't notice a difference. I checked my voltage drop on the K3's internal meter. From receive to 100 watts CW key down, I got 0.7 VDC drop. I note that the MFJ switcher provided 0.19V of that. Today I soldered my crimped lugs at the P/S end and noticed no difference when I did the measurement check again. 73-Nick, WA5BDU ___ 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] Upgrade question
Hello all,I've been out of the loop for a while, but I am looking to fire up the soldering iron and digging in again. My K2, #1998, was one of the earlier kits. It is a revision A. Right now it has the 160 board, internal battery and NB options, but it is strictly CW.I want to get the rig back 'up to snuff' and do whatever mods need to be done to make it current. I plan to add the SSB module, and eventually ditch the battery and add the amp, but for now, what are the critical drop-dead mods I need to do so that I am starting on a level playing field? I sold my big-rig last year and so the K2 is my one-and-only.I also noticed that there is a lot of documentation on soldering, but none on desoldering. Any good ideas would be appreciated since I see a lopt of that in my future. Thanks guys and gals,Jim___ 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] Upgrade question
Jim, Download the A to B instructions from the Elecraft website and look at the list of mods included with that document - then download the instructions for each of those mods. Then you can compare those mods with your physical K2 to see if any have already been installed. Order the mod kits required and the K2ATOBKT. That will bring your K2 up to date. On de-soldering, if you have a desoldering iron such as the Hakko 808, then use it to remove components. If you lack de-soldering equipment, the best way to remove components is to clip off the leads (in some cases it is necessary to destroy the component - use pliers to crush it), and then remove the leads one at a time. Clean the holes with solder wick, and if solder remains in the hole, it may be cleared while heated with a toothpick or a stainless steel needle. By all means, preserve the board, it is more valuable than any one component. 73, Don W3FPR Jim Giercyk wrote: Hello all, I've been out of the loop for a while, but I am looking to fire up the soldering iron and digging in again. My K2, #1998, was one of the earlier kits. It is a revision A. Right now it has the 160 board, internal battery and NB options, but it is strictly CW. I want to get the rig back 'up to snuff' and do whatever mods need to be done to make it current. I plan to add the SSB module, and eventually ditch the battery and add the amp, but for now, what are the critical drop-dead mods I need to do so that I am starting on a level playing field? I sold my big-rig last year and so the K2 is my one-and-only. I also noticed that there is a lot of documentation on soldering, but none on desoldering. Any good ideas would be appreciated since I see a lopt of that in my future. Thanks guys and gals, Jim ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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] Upgrade question
Jim, I forgot to mention - for all K2s with serial numbers less than 2560, replace the IF crystals too - the filter will improve dramatically. A set of 7 matched crystals is only $10 from Elecraft and if the KSB2 is installed, a set of 14 matched crystals is only $15. There is no need to match the KSB2 crystals to that used in the K2 IF filter, 2 matched sets of 7 crystals will work nicely too (if you purchase a KSB2 option, you will receive a matched set of 7 crystals with the kit. 73, Don W3FPR Jim Giercyk wrote: Hello all, I've been out of the loop for a while, but I am looking to fire up the soldering iron and digging in again. My K2, #1998, was one of the earlier kits. It is a revision A. Right now it has the 160 board, internal battery and NB options, but it is strictly CW. I want to get the rig back 'up to snuff' and do whatever mods need to be done to make it current. I plan to add the SSB module, and eventually ditch the battery and add the amp, but for now, what are the critical drop-dead mods I need to do so that I am starting on a level playing field? I sold my big-rig last year and so the K2 is my one-and-only. I also noticed that there is a lot of documentation on soldering, but none on desoldering. Any good ideas would be appreciated since I see a lopt of that in my future. Thanks guys and gals, Jim ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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] Request for NR and NTCH inside AGC loop
I've found that adjusting AGC THR makes quite a difference. I normally have THR at 4 but when I need the NR, I adjust THR to 6 or even 7. I set NR at 2-1 or 2-2. With this setting, I normally do not have to turn AF gain up. 73, Gary W7TEA I am not the first one writing that NTCH is outside the AGC loop and that NR reduces the signal strength. With NR, less on strong signals but much on weak signals. For example, signals that are buried in noise seem to be brought to life with NR 3-3 but the AF gain needs to be all the way up, or more. Ignacy John Lemay wrote: Ignacy Maybe your rig has a problem. NR does not affect the signal strength at all. It does however reduce the audio level, depending on how aggressive the setting is. Regards John G4ZTR -- View this message in context: http://n2.nabble.com/Request-for-NR-and-NTCH-inside-AGC-loop-tp2160153p2236450.html Sent from the Elecraft mailing list archive at Nabble.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] K3 and PSK
Setting up my K3 for PSK31. Using PC with on board sound. (Intel Integrated Audio). Stereo cable from K3 to sound card. I am looking to adjust ALC for 4 bars using the line in adjustment. I find that a level change of one unit on K3 (i.e. 5 to 6) changes ALC from zero bars showing to 5 bars showing. Adjusting sound card levels move the onset point but doesn't change the behavior. Am I missing something or do I have something wrong with my setup? Ron W3ZV ___ 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] Upgrade question
I did all the A to B upgrades and other mods on my K2 #1239, including the matched crystals, and then added the KDSP2. What a difference. It is a 10W version and I keep a battery in it, so I added the KIO2 to talk to the computer and the key line mod for amp keying for contesting use. I can drive my pair of 4X150's with it for 400-500 watts QRO if I want. It took a while to work through it, and getting the xtal and dsp skirts to match on CW took some getting used to, but when I got it all done, the work turned the K2 into a red-hot box. I did a 160 contest QRP with it and the RX was never overloaded. The first two CW dsp and xtal filter settings are set to give me a 400 and a 250 Hz resultant. Skirts keep going straight down out of my measurement capabilities. Yes, you can run on 160 using QRP. Going up the band to the land of ugly SWR is not a problem, just use the auto-tune. Then again, maybe it's the mojo that makes the run. I carry the K2 out to an antenna, use the KAT2 to match it at the feed and it tells me what it used to do it. That has been ever so handy. Never gets fooled by close BC stations. Have used it with a 2m rubber duckie to sniff out an HF feedline break. 73, Guy K2AV K2/K3 #1239 - Original Message - From: Don Wilhelm w3...@embarqmail.com To: j...@giercyk.com Cc: elecraft@mailman.qth.net Sent: Wednesday, January 28, 2009 8:15 PM Subject: Re: [Elecraft] Upgrade question Jim, I forgot to mention - for all K2s with serial numbers less than 2560, replace the IF crystals too - the filter will improve dramatically. A set of 7 matched crystals is only $10 from Elecraft and if the KSB2 is installed, a set of 14 matched crystals is only $15. There is no need to match the KSB2 crystals to that used in the K2 IF filter, 2 matched sets of 7 crystals will work nicely too (if you purchase a KSB2 option, you will receive a matched set of 7 crystals with the kit. 73, Don W3FPR Jim Giercyk wrote: Hello all, I've been out of the loop for a while, but I am looking to fire up the soldering iron and digging in again. My K2, #1998, was one of the earlier kits. It is a revision A. Right now it has the 160 board, internal battery and NB options, but it is strictly CW. I want to get the rig back 'up to snuff' and do whatever mods need to be done to make it current. I plan to add the SSB module, and eventually ditch the battery and add the amp, but for now, what are the critical drop-dead mods I need to do so that I am starting on a level playing field? I sold my big-rig last year and so the K2 is my one-and-only. I also noticed that there is a lot of documentation on soldering, but none on desoldering. Any good ideas would be appreciated since I see a lopt of that in my future. Thanks guys and gals, Jim ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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 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] FSK problem with my K3
Jerry, I just looked at the fldigi files on the web, and it appears that fldigi does not do FSK, but all its RTTY operation is in AFSK. If that is the case, you will need to connect the soundcard to the line in and line out connectors on the K3 rather than connecting to the ACC connector pin 1. See http://www.w1hkj.com/FldigiHelp/RTTYFSK.html for the source of my information it states that All of the modem signals that fldigi produces are audio signals. If you have implemented the circuit shown in http://www.w1hkj.com/FldigiHelp/PseudoFSK.html to produce Pseudo FSK, it does state that you may have to invert the sense of the keying signal. A second 2N stage like the one shown should accomplish the inversion. 73, Don W3FPR n2uz wrote: Hi all, First of all, I prefer to use FSK instead of AFSK. ASFK works fine. My problem is that I have the wrong polarity coming out of my rtty program (fldigi under linux). It is hooked up to pin 1 of the ACC 15 pin connector. It is changing polarity fine (looking at it with my oscope. How can I invert it in the K3? I tried the CONFIG param FSK POL and that does not do it. I read an email on the archives saying that the config item FSK POL does not work. If that is the case, when will it be fixed? I have the latest code 2.78. On the air I get no print from other hams. As a test I use my K2 with another pc to check and ASFK is fine by garbage with FSK. Jerry, N2UZ ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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] K3 and PSK
Setting up my K3 for PSK31. Using PC with on board sound. (Intel Integrated Audio). Stereo cable from K3 to sound card. I am looking to adjust ALC for 4 bars using the line in adjustment. I find that a level change of one unit on K3 (i.e. 5 to 6) changes ALC from zero bars showing to 5 bars showing. Adjusting sound card levels move the onset point but doesn't change the behavior. Am I missing something or do I have something wrong with my setup? 5 bars is OK. The adjustment is a bit coarse - and the display a bit tight! - for some combinations of sound card levels. 73, Lyle KK7P ___ 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] K3 and PSK
Ron, I would suggest that you reduce the soundcard output level and increase the K3 line in setting for smoother control of the audio level. I run my K3 line in at 12 to 13 and adjust the soundcard level to achieve the proper number of ALC bars (4) - my soundcard controls are at the mid-point when it is adjusted correctly. I am using an internal SoundBlaster Live 24 soundcard. Your results may depend on your particular soundcard as well as the K3 settings. 73, Don W3FPR Ron W3ZV wrote: Setting up my K3 for PSK31. Using PC with on board sound. (Intel Integrated Audio). Stereo cable from K3 to sound card. I am looking to adjust ALC for 4 bars using the line in adjustment. I find that a level change of one unit on K3 (i.e. 5 to 6) changes ALC from zero bars showing to 5 bars showing. Adjusting sound card levels move the onset point but doesn't change the behavior. Am I missing something or do I have something wrong with my setup? Ron W3ZV ___ 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] K3/100 input voltage and TX IMD
If they do that (limit SSB power to 100W) they really should vary the limit based on power supply voltage. For example, the K3 is specified down to 11V, but you can't get 100W at that voltage. If you try you'll get horrible distortion. It's up to the operator to be aware of these limitations and set the power accordingly. I think Elecraft's philsophy is to assume the operator is competent and not to limit any capabilities unnecessarily. Al N1AL On Wed, 2009-01-28 at 06:25, Ian Maude wrote: Don Wilhelm wrote: Ian, Your comment is worthy of consideration, but OTOH, I am of the 'old school' - amateur radio operators traditionally have not been bound by power limits imposed by the firmware, and many would be quite displeased if it were limited in the K3. With respect Don, it is already limited :) It is limited to 120W. What is the point of doing that if the radio should not be used at that power? We are supposed to share the bands as gentlemen and operate our equipment in such a manner as not to annoy our fellow hams. That does require a knowledge of our equipment, especially its limitations. I do not disagree with that at all, in fact I applaud it! 73 Ian ___ 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] K3/100 power supply voltage and current [was: K3/100 input voltage and TX IMD]
On Tue, 2009-01-27 at 21:15, als...@nc.rr.com wrote: ... Interesting thing is the current draw at each power level was not what I expected. I expected the higher voltage to lower the current at each power level. It did but a miniscule amount. At 10 watts the difference was 0.03 amps. At 100 watts the difference was 0.02 amps. I expected a lot more. The endpoint voltage for the long cable was 12.7 V. For the short cable is was 13.9 volts. I kind of expected the 100 watt amperage to decrease as the ratio of these two voltages. Doing the math, the expected current draw would have been 1.6 amps versu the 20 milliamps. Can someone explain this anomoly? Brian/K3KO Interesting. I believe the power supply voltage affects the maximum possible power but has very little effect on the current at any given power level. It makes sense if you think about it. Because there is a fixed impedance transformation ratio between the PA transistors and the antenna, the current in the transistors tends to be directly proportional to the current in the antenna. In a tube-type amplifier with a PI matching network, you can re-adjust the impedance matching for maximum efficiency. So for the same power level, higher PS voltage results in lower current. Al N1AL ___ 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] 10w K2 external keying line?
Is there a mod for an external keying line from a stock K2 QRP 10 w version? I found a number of links but they refered to moding a K2 for the KPA100 in an external box. I want to add a keying line for a different amp other than the KPA100. -- GB 73 KA5OAI Sam Morgan Linux, the lifetime learning experience. ___ 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] AC supply for KX-1
I have to second this idea - dollar for dollar you aren't going to get any cleaner power than a little battery. I use a 7.2ah battery for my KX1, which I can bring outside, bring on the trail, or use anywhere in the house... will last nearly forever. Even a small 3ah would last a heck of a long time, and would also be useful for other radios/projects. I use a battery tender plus, but I'm sure you could get a cheaper charger to do the job. Don Wilhelm-4 wrote: Dave, I don't know what your intended use is, but may I be bold enough to suggest you use a small SLA battery and keep it topped off with a low current battery charger. -- View this message in context: http://n2.nabble.com/AC-supply-for-KX-1-tp2229341p2236876.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] 10w K2 external keying line?
Sam, Look at www.n0ss.net to find your answer. Tom has (or had) a kit to do exactly that task. 73, Don W3FPR Sam Morgan wrote: Is there a mod for an external keying line from a stock K2 QRP 10 w version? I found a number of links but they refered to moding a K2 for the KPA100 in an external box. I want to add a keying line for a different amp other than the KPA100. No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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 PTT Problem
I have a K2/100 on the bench that seems to operate well on receive, but will not go into tune. Relays do not engage. I did not build this unit, but it seems to be built reasonably well. I have not worked on a K2 in about four years. Think I am out of practice. Hi Hi How do I do a master reset and where would I find a list of all the Menu functions both 1 and 2? The PA is on, but perhaps there is something else I am missing. I do hear the relay engage at about 15 watts when I turn the power setting up. Thanks Art WA8VSJ ___ 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] K2 PTT Problem
How do I do a master reset and where would I find a list of all the Menu Sounds like you need to read the manual. Electronic copies can be obtained from the Elecraft website. Be careful with that master reset. It should have no effect on any PTT problems, but it will loose all the filter settings. Look at it this way -- a master reset will return the radio to factory defaults. But this radio did not leave the factory in a working condition! g Mark AD5SS ___ 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] FSK problem with my K3
I've already completed the FSK POL menu entry, too, in case that is needed. I've sent it to a few testers. 73, Wayne N6KR On Jan 28, 2009, at 7:01 PM, Don Wilhelm wrote: Jerry, I just looked at the fldigi files on the web, and it appears that fldigi does not do FSK, but all its RTTY operation is in AFSK. If that is the case, you will need to connect the soundcard to the line in and line out connectors on the K3 rather than connecting to the ACC connector pin 1. See http://www.w1hkj.com/FldigiHelp/RTTYFSK.html for the source of my information it states that All of the modem signals that fldigi produces are audio signals. If you have implemented the circuit shown in http://www.w1hkj.com/FldigiHelp/PseudoFSK.html to produce Pseudo FSK, it does state that you may have to invert the sense of the keying signal. A second 2N stage like the one shown should accomplish the inversion. 73, Don W3FPR n2uz wrote: Hi all, First of all, I prefer to use FSK instead of AFSK. ASFK works fine. My problem is that I have the wrong polarity coming out of my rtty program (fldigi under linux). It is hooked up to pin 1 of the ACC 15 pin connector. It is changing polarity fine (looking at it with my oscope. How can I invert it in the K3? I tried the CONFIG param FSK POL and that does not do it. I read an email on the archives saying that the config item FSK POL does not work. If that is the case, when will it be fixed? I have the latest code 2.78. On the air I get no print from other hams. As a test I use my K2 with another pc to check and ASFK is fine by garbage with FSK. Jerry, N2UZ ___ 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 -- -- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.15/1921 - Release Date: 1/28/2009 6:37 AM ___ 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 --- http://www.elecraft.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
