Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
David, Bandwidth might not be a good argument. I'm not convinced ALC transients are a major universal problem with SSB signals when they are compared to other reasons for bandwidth problems. This isn't the appropriate forum for that discussion. I have looked at ALC overshoot because of my connection with amplifier designs and failures in semiconductors and other sensitive components caused by ALC problems, and the pulse duration is very short. That short pulse repeats only after the ALC has discharged significantly, so the transmitter's gain is high. The problem is a great deal like automatic bias, where the leading edge always causes some distortion as the circuitry changes states. The deeper the bias, the more time it takes to remove it and the stronger the unwanted off-channel energy. ALC is a little worse because the control signal is sampled after some delay and has to wrap back around to the start. This means no matter what they do in the amplifier the cannot cure the leading edge problem. The one exception would be if they held the ALC voltage high and then pulled it down to a level that allowed proper drive. They may be doing that, but an indicator would be a slow power rise on the leading edges. It is a mirror of normal ALC. As for bandwidth measurements, I'm not convinced the WaveNode is good at transient analysis. With FFT analysis, the window where waveform is sampled has to be present at the same time as the transient, and the processing cannot average the power. It has to calculate to provide bandwidth information of the very short duration peaks. The problem is much like the reason a conventional spectrum analyzer will miss ALC problems in all but a few really severe cases. If it isn't sampling the transient frequency when it is there, the extra bandwidth doesn't show. I'm not convinced at all, because the overshoot is so short, it is the major problem we hear on the airor even a significant one. I'm not convinced, and actually think it unlikely, the WaveNode could measure such a short burst. All that aside, because it is a big discussion, we are left with the fact Elecraft has clearly warned to NOT do 100% power control with an external ALC source. That warning is 100% understandable based on the unique way the K3 ALC works. It is absolute common sense the K3 ALC should not be replaced with a traditional external ALC for primary power level control. Even without Wayne's warning, I would not do it now that I understand how the K3 ALC works. To prevent splatter, the K3's internal pre-filter ALC must have primary control of power limits. The amplifier should only provide a fail-safe control that pulls back or kills the exciter drive if limits are reached. By the way, I'm testing new PA module designs with an IC706. It has terrible ALC overshoot. It has 100-watt plus transients when I have it set at 20 watts to drive the PA modules. The K3 does not. Fortunately the MRF-150's are able to handle the 600% overdrive bursts from the IC706 without failure. I keep a couple ICOM's around just for that reason. I cannot test for PA module survival with a bad ALC system in the exciter using the K3, unless I ran the K3 power on full and used an external ALC detector system. Then I could make the K3 emulate the IC-706. Why would people not testing things want to do that 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SubRX anomaly continued
Gary, I have now removed the front panel, reseated the aux DSP, replaced the front panel and reassembled with exactly the same symptoms. This is the second time my K3 has developed a fault out of the blue and it is expensive (increasingly) to return things to Aptos for servicing. I would be grateful if we could localise the fault as closely as possible in order to work out the relative cost/benefit of returning a part for repair or buying a replacement. The latter has only a one-way mailing cost for me and keeps my K3 in service. A further thought occurs to me: in 'external source' RF calibration mode the dsp is calculating the calibration data, and in 'factory default' mode the data writes to the dsp, so does this data *need* to be written to the EEPROM for calibration to survive power resets? Or is it just stored there for saving a configuration? 73, Pete F5VNB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SubRX anomaly continued
Didn't mean to send that to the list; apologies where they are due. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
WHY? The K3/100 is 1900. For $100 you would buy the Kenwood - NOT. Actually, the K3/100 is $2150. Plus $100 for the 500 Hz filter. Plus $330 for the antenna tuner. The K3/100 ends up being almost $800 more. Think we should wait and see what kind of performance the TS-590S actually delivers. It is VERY premature to decide now. Having said that, however, I do like the fact that the TS-590S front panel layout has nothing for one's hand to bump into when trying to use the tuning knob. I wish Elecraft had gotten that right. 73, Bob K3PH -- +--+ | Bob Schreibmaier K3PH | E-mail: k...@ptd.net | | Kresgeville, PA 18333 | http://www.dxis.org | +--+ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] Ordered K3 at Dayton
I placed my order for a K3 at Dayton yesterday after talking with Wayne and a few others at the Elecraft booth. Wayne is a very popular guy, so I had to wait for an opening a couple of times. Seems like these guys couldn't even get a minute alone to get something to eat! Wayne was very helpful with my questions about QSK on the K3 vs. the Orion II, CW roofing filters, hardware mods, and using high impedance microphones, although I first asked Eric about using my Shure 444 microphone (older model with high impedance only). He told me that I might need a single transistor circuit to transform the impedance, but he also told me that Wayne would be a better person to ask. When I finally got the chance to talk to Wayne again, he told me that Eric would probably be able to help me more on the microphone question, but told me that it should work. Has anyone tried using the Shure 444 microphone on the K3? Any comments will be appreciated. I look forward to assembling my new K3 soon, but judging by all the orders being placed at Dayton, I assume it may take a couple extra days for my order to be processed. Thanks Wayne, Eric, and the rest of the gang from Elecraft. You were all very helpful. I appreciate the fact that I was able to talk to the guys who designed the K3. Oh, and thanks for the K3 button Eric. 73, Art WB8ENE -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Ordered-K3-at-Dayton-tp5061495p5061495.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
Don't forget tho that the K3 has the option for you to build it yourself. Then you know how it goes together and you save $250 over the fully built version in the process. Then there's the fact that the Kenwood is a catchup radio that's not even finished yet, and once it goes into to production there's going to be the usual feast of version One Point Oh bugs. And who knows if/when those will ever get fixed... and by then the K3 will just be even further ahead, etc.. Before I became a dedicated elecrafter my favorite Kenwood rigs were the TS 5/830 and the 930. Those were the last good rigs I think Kenwood made. I couldn't pull the trigger on any of them after that due to having to pay for more creeping featurism rather than good basic performance. if they still sold the 830 new, tho, I'd whip out the credit card right now to get one. The higher end rigs from the big 3 are even more ridiculous, where you have to take out a bank loan to buy something with an RX that hardly performs as well as my K2, much less the K3. Rigs like the Icom 7700 and 7800 are just tragedies.. tho somehow Icom manages to sell a bunch of them. How? I dunno - more money than brains I guess hi hi. So at least for me, elecraft got it exactly spot-on in terms of my needs. The only criticism I can give have to do with ergonomics but those are pretty low priority items to me.. The bang/buck ratio of elecraft is the highest in the industry that I've been able to find. 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Son-of-K3-tp5060507p5061567.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] AC hum on tune
This one is a bit hard to describe, so please bare with me. I was talking to some locals (1-5 miles) this morning on 80m LSB. I was told that when I was tuning up a hum was heard on my signal by the guys, which were in LSB on their receivers I tried with low power 1w I tried with higher power 90w I tried it through the external amp I tried it with the external amp off I tried it direct to the antenna I unplugged everything from the K3 but the power and antenna I have switched power supplies, I have switched AC outlets in the room. They say they still hear the hum. I switched to cw and when they were still listening in LSB, they still heard the hum on my cw signal. IF they switch to cw on their rigs, they do NOT hear any hum on my cw signals. what in the world is going on here? do I have a problem or not? -- GB 73 K5OAI Sam Morgan __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
If the TS-590 uses only two roofing filters and has the best receiver specs out there, then I speculate that it could be using an H-Mode mixer, that the roofers exhibit better than average in-passband and skirt IIP3 followed by a decent strong IF, plus a LO whose phase noise is suitably low e.g. -145 dbc/Hz at 1 kHz offset. If they have gone down this route and if they have paid attention to important details such as core sizes and mix, then with the 500 Hz roofer in line we might be seeing spurious free IMDDR3 figures of 120db at spacings of 1kHz, and a HF noise figure of 9-10db without a preamp, based on actual measurements made on a living H-Mode receiver. 73, Geoff GM4ESD From: William Ravenel wm...@triad.rr.com Sent: Sunday, May 16, 2010 1:24 AM I talked to a Kenwood rep at Dayton this morning. He said the TS-590 would have the best receiver specs out there. I asked if it would beat the K3 and he said the TS-590 would have the best receiver specs out there. The radio has an IF of 11MHz and two stock roofing filters - 2.8KHz and 500Hz - no spare slots and no options. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Bad power supplies, check for hum from them. Ground radio and/or power supplies. The A/C hum has to come from the wall supply. That's my two cents, good luck. N6XVT 73 Sent from my iPhone On May 16, 2010, at 8:43 AM, Sam Morgan k5oai@gmail.com wrote: This one is a bit hard to describe, so please bare with me. I was talking to some locals (1-5 miles) this morning on 80m LSB. I was told that when I was tuning up a hum was heard on my signal by the guys, which were in LSB on their receivers I tried with low power 1w I tried with higher power 90w I tried it through the external amp I tried it with the external amp off I tried it direct to the antenna I unplugged everything from the K3 but the power and antenna I have switched power supplies, I have switched AC outlets in the room. They say they still hear the hum. I switched to cw and when they were still listening in LSB, they still heard the hum on my cw signal. IF they switch to cw on their rigs, they do NOT hear any hum on my cw signals. what in the world is going on here? do I have a problem or not? -- GB 73 K5OAI Sam Morgan __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] Ordered K3 at Dayton
I placed my order for a K3 at Dayton yesterday after talking with Wayne and a few others at the Elecraft booth. Wayne is a very popular guy, Do Ya THINK? ;-0 Seems like these guys couldn't even get a minute alone to get something to eat! For them, Dayton is a poor mans Jenny Craig (if you throw in a little sleep deprivation). I first asked Eric about using my Shure 444 microphone (older model with high impedance only). Has anyone tried using the Shure 444 microphone on the K3? Any comments will be appreciated. Of course Eric will give you the conservative answer not having one hooked up at home, but I do have one hooked up, it's a Shure 444D, black and has hi/lo impedance switch and vox switch in the base. I have it wired for the front panel and it provides good drive and a good response, adaptable to the operator using the TX EQ. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
more money than brains I guess... Oh yes,there are thousand outhere who has no brain at all when they want just to have what they like,what could you think If you see on ebay two years ago a guy from K8 land paying $3300 for an old Drake TR4CW ? and what could you think about another guy on the same website buying and old Hallicrafter SR-400 for the crazy amount of $7700 ? ah? no brain at all,go figure. AD4C For a refined ham it is compulsory to own a k3 --- On Sun, 5/16/10, lstavenhagen lstavenha...@hotmail.com wrote: From: lstavenhagen lstavenha...@hotmail.com Subject: Re: [Elecraft] Son of K3?? To: elecraft@mailman.qth.net Date: Sunday, May 16, 2010, 1:14 PM Don't forget tho that the K3 has the option for you to build it yourself. Then you know how it goes together and you save $250 over the fully built version in the process. Then there's the fact that the Kenwood is a catchup radio that's not even finished yet, and once it goes into to production there's going to be the usual feast of version One Point Oh bugs. And who knows if/when those will ever get fixed... and by then the K3 will just be even further ahead, etc.. Before I became a dedicated elecrafter my favorite Kenwood rigs were the TS 5/830 and the 930. Those were the last good rigs I think Kenwood made. I couldn't pull the trigger on any of them after that due to having to pay for more creeping featurism rather than good basic performance. if they still sold the 830 new, tho, I'd whip out the credit card right now to get one. The higher end rigs from the big 3 are even more ridiculous, where you have to take out a bank loan to buy something with an RX that hardly performs as well as my K2, much less the K3. Rigs like the Icom 7700 and 7800 are just tragedies.. tho somehow Icom manages to sell a bunch of them. How? I dunno - more money than brains I guess hi hi. So at least for me, elecraft got it exactly spot-on in terms of my needs. The only criticism I can give have to do with ergonomics but those are pretty low priority items to me.. The bang/buck ratio of elecraft is the highest in the industry that I've been able to find. 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Son-of-K3-tp5060507p5061567.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 DSP Upgrade Board
I ordered my DSP upgrade board on 12/28/09 and resisted Elecraft's recent offer to send my old board back for a quick turnaround on the upgraded board install. It was a very nice gesture, but I just couldn't pull it off at the time. I got an email from Lisa on May 5, 2010 saying my DSP upgrade board would ship in 1-2 days. The next day, I got a notice that it shipped on 5/6/10. On 5/8/10 it was in my mailbox here in St. Louis! I had a busy week, but yesterday I completed the board swap (along with the IF buffer mod). The old board will go back to Aptos on Monday. After the install I downloaded the latest version of K3 Utility and upgraded my K3 firmware to the latest version. Smooth as silk. So smooth that I wonder if I had missed something. ;o) Is there anything else that needs to be done to complete the DSP board upgrade or the IF buffer mod? Menu setting changes?? Trying hard not to sound like a broken record, many thanks to the folks at Elecraft who just keep on keepin' on! Terry, W0FM K3/100 # 474 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
I wish that I was in a position to do these things---I'm not---but why get upset with those who are? I'm sure there were those who when watching coverage of the Kentucky Derby were shocked and/or thought a guy nuts when he walked up with a briefcase full of money ($100K) and bet it on a horse. I imagine some thought differently when his pick paid 8 to 1. --- On Sun, 5/16/10, Hector Padron ad4c2...@yahoo.com wrote: more money than brains I guess... Oh yes,there are thousand outhere who has no brain at all when they want just to have what they like,what could you think If you see on ebay two years ago a guy from K8 land paying $3300 for an old Drake TR4CW ? and what could you think about another guy on the same website buying and old Hallicrafter SR-400 for the crazy amount of $7700 ? ah? no brain at all,go figure. AD4C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 New Amp
Just sold my AL80B. LK450/6 meter amp next. Then comes the wait for the new amplifier. Money being put in a sock. Smile Wondering when the order notice will be to get in the queue. Phil Philip LaMarche LaMarche Enterprises, Inc 727-944-3226 727-937-8834 Fax 727-510-5038 Cell www.w9dvm.com http://www.w9dvm.com/ K3 #1605 CCA 98-00827 CRA 1701 W9DVM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Sometimes hum will be induced from transformers in the vicinity. Run the K3 on a card table by itself and see if the hum follows you. 73, Guy. On Sun, May 16, 2010 at 12:16 PM, Karl Marderian karl...@sbcglobal.net wrote: Bad power supplies, check for hum from them. Ground radio and/or power supplies. The A/C hum has to come from the wall supply. That's my two cents, good luck. N6XVT 73 Sent from my iPhone On May 16, 2010, at 8:43 AM, Sam Morgan k5oai@gmail.com wrote: This one is a bit hard to describe, so please bare with me. I was talking to some locals (1-5 miles) this morning on 80m LSB. I was told that when I was tuning up a hum was heard on my signal by the guys, which were in LSB on their receivers I tried with low power 1w I tried with higher power 90w I tried it through the external amp I tried it with the external amp off I tried it direct to the antenna I unplugged everything from the K3 but the power and antenna I have switched power supplies, I have switched AC outlets in the room. They say they still hear the hum. I switched to cw and when they were still listening in LSB, they still heard the hum on my cw signal. IF they switch to cw on their rigs, they do NOT hear any hum on my cw signals. what in the world is going on here? do I have a problem or not? -- GB 73 K5OAI Sam Morgan __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
well, OK. If you've been convinced you need to spend 10 grand on a rig that's outperformed by a better one costing a 1/5th the price, then there's not much more I can say. You get what you deserve comes immediately to mind, but hey, go ahead - knock yourself out. I never fell for it, but that's just me 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Son-of-K3-tp5060507p5062068.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Son of K3??
I think $800 more for the K3 versus comparable TS-590 may be about right, I always hate to see kit prices higher than factory assembled units but when you go head to head with the high volume producers, that's what happens. As for the K3 front panel layout, I credit the fact that the K3 is a contest radio first and foremost to that. Operation is supposed to be PC based. After ownning K3 from the beginning, my request would be for an armchair version of K3. There would be an analog S-Meter, large LED/LCD display, band buttons, mode buttons. I also -really- enjoy an analog take-off receiver for CW. But the guys have based their product line around K3 and I feel strongly that anyone that buys a K3 today will have the current Elecraft transceiver for years to come. didit. [Elecraft] Son of K3?? Bob Schreibmaier k3ph at ptd.net Sun May 16 08:24:15 EDT 2010 WHY? The K3/100 is 1900. For $100 you would buy the Kenwood - NOT. Actually, the K3/100 is $2150. Plus $100 for the 500 Hz filter. Plus $330 for the antenna tuner. The K3/100 ends up being almost $800 more. Think we should wait and see what kind of performance the TS-590S actually delivers. It is VERY premature to decide now. Having said that, however, I do like the fact that the TS-590S front panel layout has nothing for one's hand to bump into when trying to use the tuning knob. I wish Elecraft had gotten that right. 73, Bob K3PH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
On 5/16/2010 11:22 AM, Dale Putnam wrote: Hey Sam, Good Morning, what may be happening, is your power supply has an excessive amount of hum, or filtering has degraded. Why they may not hear the hum when they use cw, is that their receivers cut off the hum because the cw filtering doesn't usually listen that low. If you have another supply, changing to it may have a significant impact. I just went to battery power and hear the same hum I have turned on a radio shack swl receiver sitting across the room and am using 0.10w output into the same antenna (dipole 24 ft up on roof) So now I hearing what I think they were talking about it's not exactly what I would call an 60 cycle ac hum but it does modulate the tune signal at a low frequency rate Ok including what should answer others posts as well. the only other ac field near by is a computer switching supply about a foot below, I don't think switching supplies create the kind of fields we are talking about in other posts? -- GB 73 K5OAI Sam Morgan __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3?? P3 keyboard interface
great dayton... a lot more people a lot more young people , SUNSHINE,,, I passed by / thru Kenwood three times along the wall of the new radio... I did hear the word K3 each time... not one time did I hear kenwood,. If the new Kenwood has a tuner I wonder if it has the capability of the k3's tuner., doubt it, unless they copied that concept as well. Eric Wayne did a 45 minute casual talk at the QRP convention on Sat night. In responding to a K3 keyboard interface Eric indicated the interface would be through the P3. bill /3 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Sam - If you are running the K3 on battery power, then obviously power supply hum isn't the problem. Some possibilities: Try changing the orientation of ANY AC operated device near the K3. If possible, remove the item temporarily as a test. If it is not possible to move the external device, then at least try rotating it 90 degrees in at least 2 planes (one at a time) and test again. I have experienced instances where a external magnetic field was modulating a VCO inside a radio, and causing the sort of problem you are experiencing. The problem may be coming from something other than a power supply. I had an instance where the magnetic field from a TV set's horizontal oscillator was affecting the VCO in a Kenwood 9800 VHF set, and causing it to transmit spurs up and down the band at 15.75 kHz intervals. That computer power supply could be a possible culprit. Try turning it off (remove the power cord to insure a complete shutdown) just to see for sure. If you have not already tried this, try running the K3 with no external connections at all - other than perhaps the battery source. That means no antenna, no microphone or key paddle, nothing at all. It goes without saying that any other connections should be removed for this test - no computer interface, no external speaker, no nothing except for the K3 by itself. I believe you should be able to key up the K3 from the front panel using either a test mode or manually operated transmit. Set the power to as low as it will go before making this test. 1 watt or less of RF will not damage the radio even if the antenna is completely disconnected. Listen on another receiver to see if you still hear the hum. If you do, and if you have eliminated any possibility of influence by an external AC field, then the problem is internal to the K3, and it needs repair. If not, then try attaching external connections one at a time until the hum comes back, and you have found the basic problem. It is possible that a ground loop from one or more external connections is causing the problem. Let us know what you find after making these tests. - Jim, KL7CC Sam Morgan wrote: snip I just went to battery power and hear the same hum I have turned on a radio shack swl receiver sitting across the room and am using 0.10w output snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DSP Upgrade Board
Hi Terry. No new menu settings need to be made or changed as a result of the DSP upgrade or the IF buffer mod. Just make sure you that if you have the subRX installed, you have the same firmware version in the main and sub DSP. It is also always a good idea to have the latest version of the K3 utility on the computer, and the latest version of firmware files in the rig. Enjoy! Bruce N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
Let me get my $0.02 in before the dreaded End of Thread message appears. I too would love to see an analog meter offered. I e-mailed LDG re. their outboard S/RF meter and its possible use with Elecraft products. I received a rather curt response that I had considered posting here for all to see but then decided against it. I still have it saved for those who would like to see it privately. Customer service is apparently not their strong suit. Regarding the new Kenwood rig, any word re. its CW full break-in/QSK capabilities? As always, take care es... Vy 73 de Bert WA2SI - Original Message - From: Don Rasmussen wb8...@yahoo.com To: elecraft@mailman.qth.net Sent: Sunday, May 16, 2010 12:44 PM Subject: [Elecraft] Son of K3?? After ownning K3 from the beginning, my request would be for an armchair version of K3. There would be an analog S-Meter, large LED/LCD display, band buttons, mode buttons. I also -really- enjoy an analog take-off receiver for CW. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3?? P3 keyboard interface
Wayne also indicated that a VGA video output option (P3) is in the works as well... GREAT..!! W4CCS On 5/16/2010 2:09 PM, Bill NY9H wrote: great dayton... a lot more people a lot more young people , SUNSHINE,,, I passed by / thru Kenwood three times along the wall of the new radio... I did hear the word K3 each time... not one time did I hear kenwood,. If the new Kenwood has a tuner I wonder if it has the capability of the k3's tuner., doubt it, unless they copied that concept as well. Eric Wayne did a 45 minute casual talk at the QRP convention on Sat night. In responding to a K3 keyboard interface Eric indicated the interface would be through the P3. bill /3 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3?? P3 keyboard interface
Gee, it just keeps getting better and better eh? What gear have they got on display?...any photos of the Booth for us that are far away and in the dark?...(Grin) Gary VK4FD On Mon, May 17, 2010 at 5:25 AM, W4CCS w4...@w4ccs.com wrote: Wayne also indicated that a VGA video output option (P3) is in the works as well... GREAT..!! W4CCS On 5/16/2010 2:09 PM, Bill NY9H wrote: great dayton... a lot more people a lot more young people , SUNSHINE,,, I passed by / thru Kenwood three times along the wall of the new radio... I did hear the word K3 each time... not one time did I hear kenwood,. If the new Kenwood has a tuner I wonder if it has the capability of the k3's tuner., doubt it, unless they copied that concept as well. Eric Wayne did a 45 minute casual talk at the QRP convention on Sat night. In responding to a K3 keyboard interface Eric indicated the interface would be through the P3. bill /3 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 For everything else there's Mastercard!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3?? P3 keyboard interface
VGA? Not HDMI? How ever will I get this low res signal to look crisp on my 60 1080p display? And what about 3-D? :-) Grant/NQ5T On May 16, 2010, at 2:25 PM, W4CCS wrote: Wayne also indicated that a VGA video output option (P3) is in the works as well... GREAT..!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3?? P3 keyboard interface
Hi Gary: Here is my take on Dayton 2010.. The Elecraft booth was by far the most popular place to be. Saw the new P3 and the new KPA500. Both were impressive. No pictures from me. I had enough to tote around.. The new Kenwood radio was good to see but not a lot of interest by my observation. Yaesu's boot was full mostly of people looking for a free hat, myself included ( just put it on the self with the other 6 or 7 I have). Alpha showed there new 6 meter offering. Runs a 4CX1500 tube and will delver lots of smoke on six. Not yet type accepted or priced but the rumor was 5 to 6k.. OUCH..!! The bone yard was much better this year over last. Much less plain junk, lots of land mobile junk.. Lots more actual ham equipment. My observation is that this Datyton was much better then last year. Had lots of fun and met lots of great hams. By the end, both my feet and legs were very mad at me.. De W4CCS On 5/16/2010 3:28 PM, Gary Gregory wrote: Gee, it just keeps getting better and better eh? What gear have they got on display?...any photos of the Booth for us that are far away and in the dark?...(Grin) Gary VK4FD On Mon, May 17, 2010 at 5:25 AM, W4CCS w4...@w4ccs.com mailto:w4...@w4ccs.com wrote: Wayne also indicated that a VGA video output option (P3) is in the works as well... GREAT..!! W4CCS On 5/16/2010 2:09 PM, Bill NY9H wrote: great dayton... a lot more people a lot more young people , SUNSHINE,,, I passed by / thru Kenwood three times along the wall of the new radio... I did hear the word K3 each time... not one time did I hear kenwood,. If the new Kenwood has a tuner I wonder if it has the capability of the k3's tuner., doubt it, unless they copied that concept as well. Eric Wayne did a 45 minute casual talk at the QRP convention on Sat night. In responding to a K3 keyboard interface Eric indicated the interface would be through the P3. bill /3 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 For everything else there's Mastercard!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
I just went to battery power and hear the same hum I have turned on a radio shack swl receiver sitting across the room and am using 0.10w output into the same antenna (dipole 24 ft up on roof) So now I hearing what I think they were talking about it's not exactly what I would call an 60 cycle ac hum but it does modulate the tune signal at a low frequency rate Ok including what should answer others posts as well. the only other ac field near by is a computer switching supply about a foot below, I don't think switching supplies create the kind of fields we are talking about in other posts? Sam, It is common for me to hear hum or buzz on local receivers very near a transmitter. Even on perfectly clean transmitters unless I use a line tap to sample signal all sorts of stuff mixes in. I've never really looked into why. My guess would be it is some nasty multipath being modulated by something. Just a guess. I'm not saying you don't have hum, but just cautioning you to be careful when listening on a local receiver near a transmitter. I can replicate hum on my shop receivers even with a very clean transmitter on the bench. That aside, did you try disconnecting everything except the K3 antenna and power supply? Switching supplies do not normally cause 60 or 120 Hz problems. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] N6XVT
Anyone heard from N6XVT, Karl Sent him reply to posting back on the 7th and have not heard from him. Rick NK 9G rmcga...@wi.rr.com n...@wi.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
Hi Dave, I'm not sure that the embedded picture I received from you would be passed by the reflector, so I'm just quoting your text below. The graphics show that peak distortion in the adjacent channel was only down 25 db from in-channel max power. This even though your trebled up voice is still fairly bass controlled. Which means that if you were up or down from this signal at 20 over on channel, you would be hearing S8 or S9 splatter from it. Sounds familiar, doesn't it. The 1500 watt power spike is particularly frightening, especially if it comes out of my wallet. Might want to pass your results on to the manufacturer as a customer and request they pull that recommendation from their publications and web page. Make sure they understand it's getting them a lot of bad press and is NOT panning out. About as graphic an underscore to Wayne's warning as one can get. (Sorry, couldn't resist) 73, Guy Hello Guy, Well, you sure called it. This screen shot is taken under the same conditions as the previous ones except that the tx equalizer was set to try and simulate a Heil HC4. The tx equalizer settings were: 1 - 0db, 2 - 0db, 3 - 0db, 4 - 0db, 5 - +2db, 6 - + 4db, 7 - + 10db, and 8 - +10db. Two things I noticed right away: First, the peak power is nearly 1500 watts! I sure am glad I still have finals in the Expert. Second, there is definite splatter as evidenced by the light and dark blue on the Modulation quickview window. One can say a lot of things about these tests but one thing comes through loud and clear to me: ALC should not be used to control the K3 set to 100 watts with the Expert 1K FA. Rather the power should be set on each band to just what the Expert needs to reach full power. To do otherwise may cause splatter and might result in final failure. How long can the Expert finals take this kind of abuse? 73 de W6BK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
Hi Guy, Apparently the reflector does not pass emails with large attachments. I think it is pretty graphic and I would like others to see it if I can figure out how. I'll call SteppIR tomorrow and discuss it with them. I support your recommendation that they take that recommended method of operation out of their manual. I will forward that email to Gianfranco at SPE (Expert). Thanks for all your help. 73 de W6BK On May 16, 2010, at 1:20 PM, Guy Olinger K2AV wrote: Hi Dave, I'm not sure that the embedded picture I received from you would be passed by the reflector, so I'm just quoting your text below. The graphics show that peak distortion in the adjacent channel was only down 25 db from in-channel max power. This even though your trebled up voice is still fairly bass controlled. Which means that if you were up or down from this signal at 20 over on channel, you would be hearing S8 or S9 splatter from it. Sounds familiar, doesn't it. The 1500 watt power spike is particularly frightening, especially if it comes out of my wallet. Might want to pass your results on to the manufacturer as a customer and request they pull that recommendation from their publications and web page. Make sure they understand it's getting them a lot of bad press and is NOT panning out. About as graphic an underscore to Wayne's warning as one can get. (Sorry, couldn't resist) 73, Guy Hello Guy, Well, you sure called it. This screen shot is taken under the same conditions as the previous ones except that the tx equalizer was set to try and simulate a Heil HC4. The tx equalizer settings were: 1 - 0db, 2 - 0db, 3 - 0db, 4 - 0db, 5 - +2db, 6 - + 4db, 7 - + 10db, and 8 - +10db. Two things I noticed right away: First, the peak power is nearly 1500 watts! I sure am glad I still have finals in the Expert. Second, there is definite splatter as evidenced by the light and dark blue on the Modulation quickview window. One can say a lot of things about these tests but one thing comes through loud and clear to me: ALC should not be used to control the K3 set to 100 watts with the Expert 1K FA. Rather the power should be set on each band to just what the Expert needs to reach full power. To do otherwise may cause splatter and might result in final failure. How long can the Expert finals take this kind of abuse? 73 de W6BK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] A Few Photos of the KPA500
I've posted a few photos of the KPA500 on my picasa site for those who didn't get to Dayton. No word on price, etc., but availability was indicated as sometime in the winter of 2010. You will also find a few photos of the Yaesu VL-2000 amplifier on my site as well. No specs, flyer, price, delivery, FCC type acceptance, etc.on it. Apparently it just appeared early Friday morning - they didn't even have a poster. Obviously my photos are certainly not professional but photos none-the-less so you can take a gander at each one! If you use the magnifying glass on the picasa web site to see larger images, give the image a few seconds to update. See the photos at: http://picasaweb.google.com/drnesbitt Wayne, Eric and all the others at the Elecraft booth were covered over non stop! Best weather ever in Dayton and great crowd. Enjoy! 73 es gud dxing -- Don N4HH K3/100 #83 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC
The usual way is to put it up on a web page somewhere, and put the link in the email. 73, Guy On Sun, May 16, 2010 at 5:07 PM, David M. Elliott immondi...@earthlink.net wrote: Hi Guy, Apparently the reflector does not pass emails with large attachments. I think it is pretty graphic and I would like others to see it if I can figure out how. I'll call SteppIR tomorrow and discuss it with them. I support your recommendation that they take that recommended method of operation out of their manual. I will forward that email to Gianfranco at SPE (Expert). Thanks for all your help. 73 de W6BK On May 16, 2010, at 1:20 PM, Guy Olinger K2AV wrote: Hi Dave, I'm not sure that the embedded picture I received from you would be passed by the reflector, so I'm just quoting your text below. The graphics show that peak distortion in the adjacent channel was only down 25 db from in-channel max power. This even though your trebled up voice is still fairly bass controlled. Which means that if you were up or down from this signal at 20 over on channel, you would be hearing S8 or S9 splatter from it. Sounds familiar, doesn't it. The 1500 watt power spike is particularly frightening, especially if it comes out of my wallet. Might want to pass your results on to the manufacturer as a customer and request they pull that recommendation from their publications and web page. Make sure they understand it's getting them a lot of bad press and is NOT panning out. About as graphic an underscore to Wayne's warning as one can get. (Sorry, couldn't resist) 73, Guy Hello Guy, Well, you sure called it. This screen shot is taken under the same conditions as the previous ones except that the tx equalizer was set to try and simulate a Heil HC4. The tx equalizer settings were: 1 - 0db, 2 - 0db, 3 - 0db, 4 - 0db, 5 - +2db, 6 - + 4db, 7 - + 10db, and 8 - +10db. Two things I noticed right away: First, the peak power is nearly 1500 watts! I sure am glad I still have finals in the Expert. Second, there is definite splatter as evidenced by the light and dark blue on the Modulation quickview window. One can say a lot of things about these tests but one thing comes through loud and clear to me: ALC should not be used to control the K3 set to 100 watts with the Expert 1K FA. Rather the power should be set on each band to just what the Expert needs to reach full power. To do otherwise may cause splatter and might result in final failure. How long can the Expert finals take this kind of abuse? 73 de W6BK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
W8JI wrote: Sam, It is common for me to hear hum or buzz on local receivers very near a transmitter. Even on perfectly clean transmitters unless I use a line tap to sample signal all sorts of stuff mixes in. I've never really looked into why. My guess would be it is some nasty multipath being modulated by something. Just a guess. I'm not saying you don't have hum, but just cautioning you to be careful when listening on a local receiver near a transmitter. I can replicate hum on my shop receivers even with a very clean transmitter on the bench. That aside, did you try disconnecting everything except the K3 antenna and power supply? Switching supplies do not normally cause 60 or 120 Hz problems. 73 Tom I agree with Tom. I have wasted a lot of time trying to eliminate a non existent problem caused by local monitoring. Obviously as you have had reports from other stations there must be something wrong but I don't think the K3 is particularly prone to transformer induced modulation. Mine sits right next to a Diamond GSV3000 power supply which has a huge great transformer in it and I have never had a problem. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/AC-hum-on-tune-tp5061903p5062847.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Hum
To look for an interferance source, one my use a portable AM radio. Just like T hunting. I was close giving up on my birdie filled K3, until I had my Apple laptop worked on. The wall power supply and the laptop were gone. My K3 was dead quite. Got find the source. Old portable AM radios are great for this. N6XVT 73 Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Julian, G4ILO wrote: Obviously as you have had reports from other stations there must be something wrong but I don't think the K3 is particularly prone to transformer induced modulation. Mine sits right next to a Diamond GSV3000 power supply which has a huge great transformer in it and I have never had a problem. Don't know about the K3, but my K2 exhibits hum if I put it on top of the linear power supply. I'm using a big switcher AD6E graciously gave me now and it works fine. Incidentally, I had the same problem with a Motorola Maxtrac 70cm radio on top of an Astron linear supply. 73, Fred K6DGW - Northern California Contest Club - CU in the 2010 Cal QSO Party 2-3 Oct 2010 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
For me and all others (I maybe the only one). Does this imply the enginreers at Elcraft need to do some brushing up on designing of DSPs. Are you saying their heterodynes aren't would they should be. N6XVT 73 Sent from my iPhone On May 16, 2010, at 8:45 AM, Geoffrey Mackenzie-Kennedy gm4...@btinternet.com wrote: If the TS-590 uses only two roofing filters and has the best receiver specs out there, then I speculate that it could be using an H-Mode mixer, that the roofers exhibit better than average in-passband and skirt IIP3 followed by a decent strong IF, plus a LO whose phase noise is suitably low e.g. -145 dbc/Hz at 1 kHz offset. If they have gone down this route and if they have paid attention to important details such as core sizes and mix, then with the 500 Hz roofer in line we might be seeing spurious free IMDDR3 figures of 120db at spacings of 1kHz, and a HF noise figure of 9-10db without a preamp, based on actual measurements made on a living H-Mode receiver. 73, Geoff GM4ESD From: William Ravenel wm...@triad.rr.com Sent: Sunday, May 16, 2010 1:24 AM I talked to a Kenwood rep at Dayton this morning. He said the TS-590 would have the best receiver specs out there. I asked if it would beat the K3 and he said the TS-590 would have the best receiver specs out there. The radio has an IF of 11MHz and two stock roofing filters - 2.8KHz and 500Hz - no spare slots and no options. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] A Few Photos of the KPA500
At Visalia the KPA500 was quoted in the $2K range. 73 Elliott WA6TLA - Original Message - From: Don Nesbitt n...@yahoo.com To: elecraft@mailman.qth.net Sent: Sunday, May 16, 2010 2:24 PM Subject: [Elecraft] A Few Photos of the KPA500 I've posted a few photos of the KPA500 on my picasa site for those who didn't get to Dayton. No word on price, etc., but availability was indicated as sometime in the winter of 2010. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Link to QRQ CW RECORDING
N4LQ said: This file was made about a year ago and sent to Elecraft. A Winkeyer USB was used to generate 45 wpm and key the K3. This playback has been slowed so you can hear the uneven elements. The second half shows how the problem goes away when the K3 is locked in Transmit mode. http://docs.google.com/leaf?id=0By_pJYMIPoenM2FhNDE0ZDQtNzdkMy00ZjIyLWJmOWItNGFjZTI0ZWJhYWMyhl=en Acoustically coupled way over driven, has what I hope is echo on trailing edges. Presumably from another receiver? There looks to variation in some element lengths inter-element spacing (bother either shortened or lengthened by about 10 ms?) before N4LQ asserts PTT by pressing the front panel XMIT button. After that, no variations consistent dot/dot-space/dash ratio near 1:1:2.5. Radio following keying I would have thought is basic stuff 45 wpm isn't really all that fast. This must be something that was introduced after new/old QSK selection, as would have expected somebody to have noticed at the time, as folks then were looking at key closure transmitted RF with 'scope, also with an eye on receiver recovery. 73, ex-VR2BG/p. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New K3 QRQ CW mode in the works
I'm working on a new QRQ CW mode that will provide full break-in and improved timing accuracy at high CW speeds. Details later this week. Thanks for all the input on this topic. 73, Wayne, N6KR http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Well at this point I have: gone on battery power nothing is hooked up to the K3 except the 12v power lines from the battery all reports of a hum on my tune signal have come from stations 1/2 mile to 3 miles away my output power was varied from 1w to 100w only difference was the hum was louder with more power one station 75.5 miles away did not hear the hum however the 80m band was QRN with storms and local noise at the rx station clues?: hum is louder on 80m than on 17m nothing different if I go to battery or on ac/dc power supplies at this point I think for my next try (since I have been using it on SSB only so far) I will get on cw and see if I can get any R5 S9 T(1-6) reports If I don't I will quit freaking out and be satisfied for now. If that is successful I will start adding things back to the rig ground, serial cable, line out, (external) tuner, IF output cable, amp and keying line to amp, ground to amp, coax switch, ground to coax switch, other antennas to coax switch, etc etc etc. hm lots of *stuff* involved when you get back to that point hopefully somewhere along the way, something will show it's self as the culprit Thanks to all who have offered suggestions on and off list. -- GB 73 K5OAI Sam Morgan On 5/16/2010 3:03 PM, Tom W8JI wrote: It is common for me to hear hum or buzz on local receivers very near a transmitter. Even on perfectly clean transmitters unless I use a line tap to sample signal all sorts of stuff mixes in. I've never really looked into why. My guess would be it is some nasty multipath being modulated by something. Just a guess. I'm not saying you don't have hum, but just cautioning you to be careful when listening on a local receiver near a transmitter. I can replicate hum on my shop receivers even with a very clean transmitter on the bench. That aside, did you try disconnecting everything except the K3 antenna and power supply? Switching supplies do not normally cause 60 or 120 Hz problems. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC hum on tune
Did you try running your monitor receiver on battery? 73 - Mike WA8BXN ---Original Message--- From: Sam Morgan Date: 5/16/2010 8:03:33 PM To: Tom W8JI Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] AC hum on tune Well at this point I have: Gone on battery power Nothing is hooked up to the K3 Except the 12v power lines from the battery All reports of a hum on my tune signal Have come from stations 1/2 mile to 3 miles away My output power was varied from 1w to 100w Only difference was the hum was louder with more power One station 75.5 miles away did not hear the hum however The 80m band was QRN with storms and local noise at the rx station Clues?: Hum is louder on 80m than on 17m Nothing different if I go to battery or on ac/dc power supplies At this point I think for my next try (since I have been using it on SSB only so far) I will get on cw and see if I can get any R5 S9 T(1-6) reports If I don't I will quit freaking out and be satisfied for now. If that is successful I will start adding things back to the rig Ground, serial cable, line out, (external) tuner, IF output cable, Amp and keying line to amp, ground to amp, coax switch, Ground to coax switch, other antennas to coax switch, etc etc etc. Hm lots of *stuff* involved when you get back to that point Hopefully somewhere along the way, Something will show it's self as the culprit Thanks to all who have offered suggestions on and off list. -- GB 73 K5OAI Sam Morgan On 5/16/2010 3:03 PM, Tom W8JI wrote: It is common for me to hear hum or buzz on local receivers very near a transmitter. Even on perfectly clean transmitters unless I use a line tap to sample signal all sorts of stuff mixes in. I've never really looked into why. My guess would be it is some nasty multipath being modulated by something. Just a guess. I'm not saying you don't have hum, but just cautioning you to be careful when listening on a local receiver near a transmitter. I can replicate hum on my shop receivers even with a very clean transmitter on the bench. That aside, did you try disconnecting everything except the K3 antenna and power supply? Switching supplies do not normally cause 60 or 120 Hz problems. 73 Tom __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3 QRQ CW mode in the works
I'm working on a new QRQ CW mode that will provide full break-in and improved timing accuracy at high CW speeds. Details later this week. Wayne, this is the best news I've heard from Elecraft in years, and I've heard some pretty good news from Elecraft in recent years. Tonight I learned that the KPA500 is in the works, and I was saddened to think that such a stellar setup (K3, P3, KPA500) was being developed and refined only to have CW performance that may (key word *may*) not be able to keep up with what is an otherwise superb QRQ CW station. You've made my day. Keep up the great work. --Andrew .. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3 QRQ CW mode in the works
Good news! I just ran some more test. At 65 wpm it won't produce anything that resembles Morse code unless you engage XMIT mode. Break in speed has no effect on keying quality. Steve N4LQ - Original Message - From: Wayne Burdick n...@elecraft.com To: elecraft@mailman.qth.net Sent: Sunday, May 16, 2010 8:01 PM Subject: [Elecraft] New K3 QRQ CW mode in the works I'm working on a new QRQ CW mode that will provide full break-in and improved timing accuracy at high CW speeds. Details later this week. Thanks for all the input on this topic. 73, Wayne, N6KR http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Difficulty getting through to list
My messages with the SSB net results are not getting through. Testing this message. NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3 QRQ CW mode in the works
Oh, the joy of having all that stuff in program code instead of wave-soldered SMD discrete components. Wonderful news. 73, Guy. On Sun, May 16, 2010 at 8:31 PM, Steve Ellington n...@carolina.rr.com wrote: Good news! I just ran some more test. At 65 wpm it won't produce anything that resembles Morse code unless you engage XMIT mode. Break in speed has no effect on keying quality. Steve N4LQ - Original Message - From: Wayne Burdick n...@elecraft.com To: elecraft@mailman.qth.net Sent: Sunday, May 16, 2010 8:01 PM Subject: [Elecraft] New K3 QRQ CW mode in the works I'm working on a new QRQ CW mode that will provide full break-in and improved timing accuracy at high CW speeds. Details later this week. Thanks for all the input on this topic. 73, Wayne, N6KR http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FW: Elecraft SSB net results (5-16-10)
Trying again. -Original Message- From: Phillip Shepard [mailto:ph...@rio.com] Sent: Sunday, May 16, 2010 6:16 PM To: 'elecraft@mailman.qth.net' Subject: Elecraft SSB net results (5-16-10) The net was a bit challenging today due to deep QSB and heavy QRM at times from a net/QSO on 14.316 MHz. Nevertheless, We had 27 participants over the 21 minute net. The long DX was from M0CHK, Andy, and KL7QOW, Mike. N1LQ gave a good report of Elecraft at Dayton. Here is the list of the group: Station NameQTH Rig S/N NF4LMikeFL K3 3539 W5ETJ GaryTX K3 3227 VE3QF TonyON K3 137 NT5QDon NM K3 4179 K5OAI Sam TX K3 4123 W0WOI BillIA K3 541 N4ZAAl NC K3 3065 KL7QOW MikeAK K3 3144 K0JWC Jim MN K3 3447 N1LQDaveMA K3 371 NR5AJerry SD IC703 W4RKS Jim AL K3 3618 AE6IC FredCA K3 2241 W0FMTerry MO K3 474 AC0NM Glenn AZ K3 2843 K8EAG Gil MI K3 99 N4FZGeneKY K3 4128 M0CHK AndyUK K3 1701 N5ZMEarlAR K3 3223 W8OVDaveTX K3 3139 W9EJB Ed IN K3 1593 K4GCJ Gerry NC K3 1597 W9DVM PhilFL K3 1605 KG0KP Jim MO K3 1442 NY9HBillPA K3 49 K0XUJim NE K3 4083 NS7PPhilOR K3 1826 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB net results (5-16-10)
The net was a bit challenging today due to deep QSB and heavy QRM at times from a net/QSO on 14.316 MHz. Nevertheless, We had 27 participants over the 21 minute net. The long DX was from M0CHK, Andy, and KL7QOW, Mike. N1LQ gave a good report of Elecraft at Dayton. Here is the list of the group: Station NameQTH Rig S/N NF4LMikeFL K3 3539 W5ETJ GaryTX K3 3227 VE3QF TonyON K3 137 NT5QDon NM K3 4179 K5OAI Sam TX K3 4123 W0WOI BillIA K3 541 N4ZAAl NC K3 3065 KL7QOW MikeAK K3 3144 K0JWC Jim MN K3 3447 N1LQDaveMA K3 371 NR5AJerry SD IC703 W4RKS Jim AL K3 3618 AE6IC FredCA K3 2241 W0FMTerry MO K3 474 AC0NM Glenn AZ K3 2843 K8EAG Gil MI K3 99 N4FZGeneKY K3 4128 M0CHK AndyUK K3 1701 N5ZMEarlAR K3 3223 W8OVDaveTX K3 3139 W9EJB Ed IN K3 1593 K4GCJ Gerry NC K3 1597 W9DVM PhilFL K3 1605 KG0KP Jim MO K3 1442 NY9HBillPA K3 49 K0XUJim NE K3 4083 NS7PPhilOR K3 1826 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3 QRQ CW mode in the works
Well I can do around 21 wpm with my vibroplex now... so I'm gettin' there, hi hi 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/New-K3-QRQ-CW-mode-in-the-works-tp5063159p5063355.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Son of K3??
No criticism of Elecraft nor the K3 was intended, besides I do not have any good hard data as to the receive signal handling capability of the K3's DSP sub-system. What triggered my comment was that the TS-590 is said to use only two roofing filters and it is claimed by the manufacturer that it has the best receiver specs out there. If it is a superhet, this sounds suspiciously like a receiver that uses a H-Mode mixer, high IIP3 roofers, and a strong IF. The H-Mode is a type of mixer which appeared more than 15 years ago and yields very good IMD performance, better than most, and as far as I know is not yet used in commercial amateur receivers - I don't know why not. It will be interesting to see whether or not the designers of the TS-590 receiver have used a proper Gain Distribution analysis to obtain optimum IMDDR3 performance, which should include every stage or element in or which impacts on the signal path, this includes L-C filters, crystal filters as well as LO phase noise. It will also be interesting to see their approach to the LO, because a PLL based synthesiser whose cost is within budget would probably be too noisy. All should be evident from the schematic when and if it becomes available. 73, Geoff GM4ESD On Sunday, May 16, 2010, at 11:30 PM, Karl Marderian karl...@sbcglobal.net wrote: For me and all others (I maybe the only one). Does this imply the enginreers at Elcraft need to do some brushing up on designing of DSPs. Are you saying their heterodynes aren't would they should be. N6XVT 73 Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] A Few Photos of the KPA500
On 5/16/10 5:24 PM, Don Nesbitt wrote: I've posted a few photos of the KPA500 on my picasa site for those who didn't get to Dayton. No word on price, etc., but availability was indicated as sometime in the winter of 2010. Interesting that the KPA500 is on 14MHz, and the K3 is on 40m ;-) 73, Ross N4RP -- FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.” __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] NAQCC Sprint Wednesday night!
NAQCC Sprint Wednesday night! This coming Wednesday evening will be the monthly NAQCC Sprint for May, 2010. I will refer you to the proper URL: http://home.windstream.net/yoel/sprint201005.html There you will find all the details as to time, frequencies and also a special prize. This month's Special Prize goes to the winner, to be decided by drawing among all who submit a valid log, gets a choice of paddle handles, straight key knobs, and/or K2 knob inserts donated by Gregg WB8LZG. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate (this includes QRO); but you must use QRP power levels to compete for awards. Come join us and have a real good time! 72/73 de Dave VA3RJ NAQCC #0004 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Report for May 16th 17th, 2010
Good Evening, Conditions were not as good as I had expected. During the twenty meter net I had a long lull and was about to close when I heard K0DTJ respond to my CQ. Forty meters was even more difficult eliciting only four check ins all from California. I had not expected either band to be so quiet. The weather reports were good and the coldest report came from CA. Foggy and cool with 50 degrees is not normal for this time of year. I got another 50 degree report from Alaska and then one from Michigan. Up here it was 65 degrees and quite nice. Even now it is warm outside with only a few clouds. On to the lists = On 14049.5 kHz at 2200z: KL7QOW - Mike - AK - K3 - 3144 K1THP - Dave - CT - K3 WB3AAL - Ron - PA - K2 - 1392 W0CZ - Ken - ND - K3 - 457 AB9V - Mike - IN - K3 - 398 KL7CW - Rick - AK - KX1 - 798 K0DTJ - Brian - CA W8OV - Dave - TX - K3 - 3139 NO8V - John - MI - K3 On 7045 kHz at z: K0DTJ - Brian - CA K6GC - TR - CA - K(3) - 838 AE6IC - Fred - CA - K3 - 2241 K6DGW - Fred - CA - K3 - 642 I am still rebuilding the database and collect SNs from emails I receive from the reflector. Most of the week was spent rebuilding computers so I had little time to actually work on them. The database loss was only the beginning since the rest of the drive seems to be dying. So I backed up all the data on two other computers and am still trying to copy whatever I can of the OS. However, the database is now on this laptop and on another computer too so I can work in a couple places. Hopefully during the next week I can spend more time working on the system instead of on the hardware. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
