Re: [Elecraft] Re： OT: K440XV?
Um, guy's, I am surrounded by millions of acres of real estate and one 2M repeater...:-) I would need an eleventeen element yagi on a massive boom to just key it sometimes from some of the places I frequent...not a worth while investment for a three thousand dollar radio when my trusty old Yucksu 2M set get's used once in a blue moon..:-) On a more serious note though, I know of one K3 out here with the 2M module and it works quite well but Oz is not really the place where a 70cm option would sell well..I think Now if you guys were asking for 4 antenna inputs (tx/rx) that would sure get my attention...hence I am eagerly awaiting the desktop/remote tuner that is coming. Wouldn't that be nice to be able to squeeze inside a K3...wow!!! That would get me running for the check book...:-) 73's I gotta go do some DX on 20M Gary On Sat, Nov 13, 2010 at 6:36 AM, Johnny Siu vr2...@yahoo.com.hk wrote: Hello James and Gary, It is a good idea of K440XV. However, we have to look at the price as well. If you just want something in the FM mode, any price near the K144XV could be expensive. Any FM mobile rig will give you the answer. If you go for a real UHF based station, the frequency and power stability of K440XV are of primary importance. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ James Sarte k2qi@gmail.com 收件人﹕ Gary Gregory garyvk...@gmail.com 副本(CC) Elecraft Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/13 (六) 1:10:01 PM 主題： Re: [Elecraft] OT: K440XV? That's a good point Gary. One big difference and advantage with the K3 though is its modular construction. If an internal transverter were to go kaput, I imagine that one could just disable it in the settings until its repaired or replaced. HF would still work fine. That may not be the case with something like the TS-2000 or Icom's upcoming IC-9100. Personally, a UHF rather than VHF option would have been better for me. I could see myself using the K3 as a UHF base station if that option were made available. There really isn't that much activity on 2m in my neck of the woods except for the local hams who hang out on 146.520. There are several 2 meter machines in close proximity, but I've never heard anything on them except for the occasional broadcast ID. On the other hand, NYC has a lot of activity on 440. More so than in any other part of the US I've been in. Anyway, I may still purchase the K144XV for experimentation. I've got good height at my location, and a small log-periodic for 2m on the balcony might be fun to play around with. 73, James K2QI On Fri, Nov 12, 2010 at 11:56 PM, Gary Gregory garyvk...@gmail.com wrote: Yep, wishful thinking I reckon. There are two options I would not contemplate, 2M and 70CM and for that matter any higher frequencies. DC to Daylight radios might be attractive until something goes wrong, then your 'all in one box' system CAN take you off air completely and that for me would be kinda bad...no, make that a disaster...I just gotta have my daily HF 'fix' :-) YMMV Gary On Sat, Nov 13, 2010 at 4:26 AM, James Sarte k2qi@gmail.com wrote: Hello group, Is there any hardware limitation preventing the design and implementation of an internal UHF transverter? In this day and age of DC to Daylight boxes, I'm surprised that Elecraft only has a VHF module available for the K3. For me, 2 meters isn't so useful in NYC. If given the option, I would rather have a UHF module in order to take advantage of the many active repeaters near me. I know it's a long shot, but it would be nice to have an all-in-one K3 that can go from 160 to 1.2Ghz. Wishful thinking perhaps? -- 73 de James K2QI President UNARC/4U1UN -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679, P3 #546 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] OT: K440XV?
James, if your only interest is 440 FM then a handheld or mobile TRX should be a much cheaper solution. ;-)) Having fitted the K144XV in my K3 I would not see any available space anymore to also fit a 70 and/or 23 cm transverter inside, too. With all the options space is getting rare inside. ;-)) And I don't think that lots of people would fit a K440XV instead of a K144XV inside meaning you have 160 - 6 m coverage plus 440 in one box but skipping 144 MHz. Sure this is no good business model, at least to my mind. ;-)) But maybe you would like to use Elecraft's external transverters which integrate nicely, i.e. besides the external box you completely control everything from the K3 itself including frequency display. Can it get any better? ;-)) 73, Olli - DH8BQA __ 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 P3 and SteppIR controller
Using the Y cable in the serial feed from the P3 to the K3 works here. Perhaps something has changed in your setup? I now prefer using LP-Bridge to feed the SteppIR because it sends the tx frequency to the SteppIR when working split. 73, Pete F5VNB On 12/11/2010 23:37, zumbr...@comcast.net wrote: Good afternoon to the group. How do I configure the K3, P3 and SteppIR controller so that the K3 P3 will cause the SteppIR to change bands. Before the P3 I had no trouble controlling the SteepIR with the K3. 73, Steve __ 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] UK Elecraft Net
Hi all, I will be running the net as usual tomorrow morning on 3658 +/- QRM at 09:00z. I hope to hear you there. 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC HB9DRV-9 DX Clusters Member RSGB, GQRP 9838, FISTS 14077 | K3 #455 http://www.m0scg.org.uk __ 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 APF
Outstanding! I have been spotting and working weak signal DX on 40m tonight. I am able to copy and work stations with S-3 signals on 40m here in TX with the APF On. I worked ZL2MS and was able to give him a 549 report. We were both running 100w. His antenna a GP and mine a half sloper. His report to me was 349, so I believe my advantage was the APF. It cuts right through the noise on 40m here in Arlington, TX. The filter in the rig is the 250Hz CW filter. Good Job Y'All Oh, and I am finding these weak signals with my new P3 ;o) 73, Tom Childers Radio Amateur N5GE Licensed since 1976 QCWA Member 35102 __ 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] K2 Alignment
K2 s/n 6905 I have just got to the 40-metre TX alignment and peaked up L1/L2; minor issue/observation. The power output varies sometimes when [TUNE] is selected. Set to 2W and sometimes it's about 1.5W and sometimes 2.5W. I've checked the output on a 20 MHz scope and there is no obvious instability. Battery 11.7, volts current about 1.26A when on higher output and about 1.1A when it's jumped to the lower output. I have not seen this change during TUNE, just when hitting TUNE, rx, TUNE, etc. When adjusting the power control and looking at the output on the scope, there are discrete jumps rather than a smooth variation. Presumably this is normal, but if the power setting is set on the edge of a 'jump' then maybe this is to be expected...? Seems a bit strange is this is the case. Maybe it does not occur in normal use? I have had a quick look in the archive (power varies) but not found anything that really matches these symptoms. Any thoughts? Thanks and regards, Ian, G4JQT __ 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 firmware with APF and SSB improvements -- any takers?
Hello Wayne I'll be glad to test 4.21 and let you know how it works. I am still playing with 4.18 and the APF is working very good, at least as good compared to my FT1000D. 73 Ami 4X4DK __ 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] K2 Alignment
Nothing to worry about, Ian. The KAT3 automatically reduces the power while tuning up to protect the relays. But you do need to set the power control to over about 5W or else you will get a Lo P warning, which indicates that the power is set too low for the KAT3 to perform the tuning operation. 73 de David G4DMP In a recent message, Ian Liston-Smith ian...@hotmail.co.uk writes The power output varies sometimes when [TUNE] is selected. Set to 2W and sometimes it's about 1.5W and sometimes 2.5W. -- + - - - - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds, England | | Website: http://www.g4dmp.fsnet.co.uk | + - - - - - - - - - - - - - - - - - - - + __ 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 firmware with APF and SSB improvements -- any takers?
Hello Wayne and all Elecrafters, I am a CW operator 100 % of time, so I tested, and still test, the APF function. Due to the fact that I have a simple mobile antenna in my balcony I do not RX strong CW signals, however I did a qso with HA4FF some minuts ago. In fact APF improves signal quality if CW is steady. With my antenna limitations, with bad RX, it amplifies also some noise, it seems for me. However despite my antenna situation APF works fine. Maybe mid of December I will have an MFJ-1786X. Best 73. CT1DRB David Quental Hello Wayne I'll be glad to test 4.21 and let you know how it works. I am still playing with 4.18 and the APF is working very good, at least as good compared to my FT1000D. 73 Ami 4X4DK __ 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] K3 firmware with APF and SSB improvements -- any takers?
Hello again, just to say that I am using a 250hz filter. Best 73 to all. CT1DRB David Quental __ 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] K3 firmware with APF and SSB improvements -- any takers?
When will the rest of us get the release? It's my understanding that APF is only a beta release. W1EQ, Bob -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Quental Sent: Saturday, November 13, 2010 7:13 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 firmware with APF and SSB improvements -- any takers? Hello again, just to say that I am using a 250hz filter. Best 73 to all. CT1DRB David Quental __ 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] Day 1: Fried something already?
Glad you got it working. In the future, destroying the part *carefully* is the way to go -- hack away at it with pliers, dremel, whatever. But do it carefully: - too much stress and prying can rip the vias and pads off the board, leaving you with (possibly) a bigger problem than before - if you're cutting or dremel'ing it away, you're probably showwering the rest of board with tiny metal shavings .. __ 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] K2 Alignment
Ian, What you are seeing in TUNE is normal. The power control is not as responsive in TUNE as it is in normal operation. There is a reason for it - think of those using a manual tuner. 73, Don W3FPR On 11/13/2010 6:28 AM, Ian Liston-Smith wrote: K2 s/n 6905 I have just got to the 40-metre TX alignment and peaked up L1/L2; minor issue/observation. The power output varies sometimes when [TUNE] is selected. Set to 2W and sometimes it's about 1.5W and sometimes 2.5W. I've checked the output on a 20 MHz scope and there is no obvious instability. Battery 11.7, volts current about 1.26A when on higher output and about 1.1A when it's jumped to the lower output. I have not seen this change during TUNE, just when hitting TUNE, rx, TUNE, etc. When adjusting the power control and looking at the output on the scope, there are discrete jumps rather than a smooth variation. Presumably this is normal, but if the power setting is set on the edge of a 'jump' then maybe this is to be expected...? Seems a bit strange is this is the case. Maybe it does not occur in normal use? I have had a quick look in the archive (power varies) but not found anything that really matches these symptoms. Any thoughts? Thanks and regards, Ian, G4JQT __ 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] How do unrelated features get broken?
Not being a programmer, I'm just wondering how seemingly unrelated features get broken with firmware changes. For example, the current decrease in SSB power out with APF. Another example, the frequency shift casued by chaining memory buffers. Tnx, Barry -- Barry Kutner, W2UP Lakewood, CO __ 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] CP antenna article in Dec QST
My 144-MHz dual-polarity diversity receiver is exactly what you describe, only for HF in your case: two orthogonal antennas, each fed to one of the K3 receivers. In my case a dual-channel 144-MHz Rx converter is feeding 28-MHz to the K3 and fed by my X-yagis. To observe the polarity effects the two separate receiver audio streams are fed to a a computer which runs Linrad, a program for weak-signal reception that also resolves the polarity angle from the two orthogonal signals. http://www.kl7uw.com/eme144.htm http://g7rau.demon.co.uk/sm5bsz/index.htm No fancy coax network is needed; just make the baluns and feedlines identical. 73, Ed BTW Eric is a member of the ARRL 600m Experimental Group: WD2XSH. -- Message: 8 Date: Fri, 12 Nov 2010 19:31:56 - From: Bill VanAlstyne W5WVO w5...@cybermesa.net Subject: Re: [Elecraft] [K3] CP antenna article in Dec QST [was: Education please] To: Elecraft Reflector elecraft@mailman.qth.net Message-ID: 6720a8423c184619a1be732734b53...@billhp9250 Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Just as a heads-up for anyone interested in this subject -- in the December QST just now arriving in subscribers' hands, there is a cool article on X-O circular polarization (CP) antennas. The author (Eric Nichols, KL7AJ) discusses the fact that all F-layer ionospheric propagation is actually circular and arrives at the receiving antenna by way of one of two different refraction paths, depending on... well, you can read the article for the theoretical details. He says all of this has actually been well understood in physics and radio engineering circles since the 1930s, but (with a few exceptions) has had scant mention in the ham radio literature. The executive summary is that you can build a receive antenna (which empirically demonstrates and proves the theory) consisting of two inverted vee antennas constructed around a central support, with the four legs arranged accurately such that the slopes of the legs are all identical, the angles between the legs are all 90 degrees, and the two feedlines (connected through identical baluns) are precisely the same length. By then inserting a 1/4-wavelength (90 degree) delay line in one dipole's feedline and then adding the signals together through a T or some more sophisticated combiner, you will get either a large increase in signal strength with respect to either dipole individually, OR a commensurately large loss of signal strength with respect to either dipole individually -- depending on which variety of circular polarization (X-wave or O-wave) you are getting from the station being received at the moment. This is one kind of orthogonal receiving antenna that could have very practical uses on the HF bands, especially if you have a diversity-capable receiver such as the K3. One possibility I can think of: You could set up two separate X-O inverted vee antenna systems on two separated support masts, each magnetically aligned as described in the article, with one antenna set up for X waves and the other set up for O waves. Connect the X-wave configured antenna to one receiver, the O-wave configured antenna to the other receiver. And say goodbye to a lot of the QSB normally associated with F-layer-propagated reception! (At least it seems to me that it would have that effect.) Another possibility: use ultra-fast PIN diode switching of the 90-degree delay line and reconstruct both an X and O output from a single antenna. Since even PIN diodes probably can't switch faster than, say, one cycle at 14 MHz (about 72 nanoseconds), I don't know if this would work, as you would be switching multiple cycles and fractions of cycles (asynchronously) back and forth... Would this matter? You would end up with a 3-dB loss on each leg, but that in itself should be trivial; absolute sensitivity is not an issue at HF. But would the chopped-up waves be properly demodulated in the receivers? This is about where the engineering of it goes over my head... Comments? Bill W5WVO 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-800*w, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == *temp not in service __ 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 v. 4.21
The 4.21 firmware seems to have normalized the mic gain setting. On 4.18 I had to reduce the mic gain and reduce TXG VCE to 0dB. I have left TXG VCE at 0dB and all is still well. APF appears to work fine now. It is very smooth and no artifacts. Thanks. Roy Morris W4WFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3/K3 Probelm Oscilation
Every 7 seconds or so the P3 makes a momentary audible beep sound (from the box itself) and the displayed noise level jumps 10 dB - leaving a horizontal red trace all the way across the waterfall. I do not hear or detect anything corresponsding to this in the K3 output. This just started recently. Should I send it back for repair? Bruce W8RA __ 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] OT: K440XV?
Hi Olli, My primary interest would have been for 70cm FM, but I'm open to experimentation. I'm still haven't ruled out purchasing the K144XV just for that reason. A small log-periodic and a 160 watt mirage 2m amplifier might be fun to play with. Anyway, I guess I should say that it would have been nice if it was possible to have 2m/70cm internal transverter, rather than just 2m alone. My original question was more or less leading to that; what sort of limitations exist in the K3's hardware that prevented such a module from being designed in the first place? 73 de James K2QI On Sat, Nov 13, 2010 at 4:07 AM, Oliver Olli Dröse dro...@necg.de wrote: James, if your only interest is 440 FM then a handheld or mobile TRX should be a much cheaper solution. ;-)) Having fitted the K144XV in my K3 I would not see any available space anymore to also fit a 70 and/or 23 cm transverter inside, too. With all the options space is getting rare inside. ;-)) And I don't think that lots of people would fit a K440XV instead of a K144XV inside meaning you have 160 - 6 m coverage plus 440 in one box but skipping 144 MHz. Sure this is no good business model, at least to my mind. ;-)) But maybe you would like to use Elecraft's external transverters which integrate nicely, i.e. besides the external box you completely control everything from the K3 itself including frequency display. Can it get any better? ;-)) 73, Olli - DH8BQA __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] How do unrelated features get broken?
Even though features may not be related, one can cause side-effects in another due to unintentional modification of variables. Of course we jump through a lot of hoops to avoid this, but programmers are (unfortunately) human. 73, Wayne N6KR On Nov 13, 2010, at 5:45 AM, Barry wrote: Not being a programmer, I'm just wondering how seemingly unrelated features get broken with firmware changes. For example, the current decrease in SSB power out with APF. Another example, the frequency shift casued by chaining memory buffers. Tnx, Barry -- Barry Kutner, W2UP Lakewood, CO __ 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] K3 firmware with APF and SSB improvements -- any takers?
As soon as the field test confirms that all is well, we'll do a beta release, putting the files on our web site. If the wider beta testing shows no problems, we'll update it to a production release a few days later. 73, Wayne N6KR On Nov 13, 2010, at 4:46 AM, Bob Garceau wrote: When will the rest of us get the release? It's my understanding that APF is only a beta release. W1EQ, Bob -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Quental Sent: Saturday, November 13, 2010 7:13 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 firmware with APF and SSB improvements -- any takers? Hello again, just to say that I am using a 250hz filter. Best 73 to all. CT1DRB David Quental __ 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 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 v. 4.21
I concur Roy; something has changed again in the way mic gain is handled with this firmware iteration. Prior to 4.14, I had to leave mic gain set to 4 or 5 and bias to low. Those settings gave me 5-7 bars ALC on normal voice peaks. This is with the MH2 hand mic. After 4.18, I noticed that I had to turn mic gain up to 15 in order to achieve the same results. Now with 4.21, mic gain has to be reduced to 5 in order to keep the ALC happy. One thing that I'm not sure about however is the difference in setting required for SSB and FM. When testing using FM, I have to increase mic gain by 50% to see a similar ALC readout. I don't remember if it behaved as such prior to 4.14. Can anyone pse confirm? 73 de James K2QI On Sat, Nov 13, 2010 at 10:20 AM, Roy Morris w4...@carolina.rr.com wrote: The 4.21 firmware seems to have normalized the mic gain setting. On 4.18 I had to reduce the mic gain and reduce TXG VCE to 0dB. I have left TXG VCE at 0dB and all is still well. APF appears to work fine now. It is very smooth and no artifacts. Thanks. Roy Morris W4WFB __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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 v. 4.21
Correction - on FM, I have to increase mic gain settings by 200%, not 50% as I had written. For example, what might sound fine using a gain setting of 5 on SSB will not produce full modulation on FM at the same setting. I have to turn gain up to 15 for similar results. I'm very curious about this now. Can anyone test their K3 and reply? Tnx, James K2QI On Sat, Nov 13, 2010 at 12:13 PM, James Sarte k2qi@gmail.com wrote: I concur Roy; something has changed again in the way mic gain is handled with this firmware iteration. Prior to 4.14, I had to leave mic gain set to 4 or 5 and bias to low. Those settings gave me 5-7 bars ALC on normal voice peaks. This is with the MH2 hand mic. After 4.18, I noticed that I had to turn mic gain up to 15 in order to achieve the same results. Now with 4.21, mic gain has to be reduced to 5 in order to keep the ALC happy. One thing that I'm not sure about however is the difference in setting required for SSB and FM. When testing using FM, I have to increase mic gain by 50% to see a similar ALC readout. I don't remember if it behaved as such prior to 4.14. Can anyone pse confirm? 73 de James K2QI __ 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 for sale
Hey guys, Would this be the best place to put an elecraft k3 up for sale? Selling it for a friend who doesn't have internet access at the moment. Thanks, Jed __ 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 P3 and SteppIR controller
Hi, I looked quickly ahead and didn't see an answer so here's my 2cents worth. I'm not a STeppIR user, but from reading this and other reflectors, I think STeppIR make a RS232 Y cable that allows the radio on someother divice to talk while the STeppIR controller only listens, not taking an active part in the 'conversation'. This allows the logging program to work in that the logger will ask for frequency information, and the STeppIR controler hears the request/answer and responds. Check this out on the STeppIR web site. ...bc nr4c -Original Message- From: zumbr...@comcast.net [mailto:zumbr...@comcast.net] Sent: Friday, November 12, 2010 5:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 P3 and SteppIR controller Good afternoon to the group. How do I configure the K3, P3 and SteppIR controller so that the K3 P3 will cause the SteppIR to change bands. Before the P3 I had no trouble controlling the SteepIR with the K3. 73, Steve __ 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] K3 APF
For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-APF-tp5735159p5735892.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] Day 1: Fried something already?
That's exactly why I avoid power tools to destroy a part that needs to come off except as a last resort. Tiny bits of metallic trash can cause endless trouble now and in the future as an overlooked bit wiggles into just the wrong position. Whenever I must do that I work with the board upside down so things fall away, not to the side on down directly to the board. Clumsy, but keeps the trash off the board and surrounding components. One danger with something like a relay and the plated through holes is that a fillet of solder forms under the relay if too much solder was applied in the first place. Indeed, that's often been the issue with people shorting the signal path to a crystal can in the K2. It can be very difficult to get all of that solder off from underneath and chopping the part to bits is the only answer. I have found that working each pin separately - removing solder then wiggling it until it's free - gets the job done 90% of the time. Ron AC7AC -Original Message- Glad you got it working. In the future, destroying the part *carefully* is the way to go -- hack away at it with pliers, dremel, whatever. But do it carefully: - too much stress and prying can rip the vias and pads off the board, leaving you with (possibly) a bigger problem than before - if you're cutting or dremel'ing it away, you're probably showwering the rest of board with tiny metal shavings .. __ 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] 4.21 APF impressions
Been playing with the new 4.21 release for a few hours. My impressions of the APC is it is an excellent addition to the CW op's tools. Smoothly boosts the weak signal out of the noise. Thanks to both Elecraft and the reflector members who pushed for this refinement. Although we might get tired of seeing similar posts urging a wanted addition it sure is beneficial when the results are like this one. The only change I note on SSB is that I can turn my gain down to 5~6 with a Yamaha CM500(?) It was previously at ~19. One other note I can't hear any difference if I am using High or Low bias. Checked with monitor and DVR. 73, Howard..K2HK __ 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] 4.21 APF impressions
Has it now been released, Howard? I've just been trawling all the FTP folders without success. Please advise. David G4DMP In a recent message, Howard K2HK k...@arrl.net writes Been playing with the new 4.21 release for a few hours. __ 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] 4.21 APF impressions
Howard, One correction - the High or Low do not apply to the bias. The thing that High and Low refer to is the range for the mic level. You should see a change in the audio (ALC) level when switching between High and Low, but since your mic level is now set to a low value, there may only be a slight difference. 73, Don W3FPR On 11/13/2010 1:36 PM, Howard K2HK wrote: The only change I note on SSB is that I can turn my gain down to 5~6 with a Yamaha CM500(?) It was previously at ~19. One other note I can't hear any difference if I am using High or Low bias. Checked with monitor and DVR. 73, Howard..K2HK __ 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 - Installation times for options
I wonder if I could get a few ideas regarding the times to install a couple options. The 100 watt PA, and the KXV3 IF interface and multiple antenna input kit. How long should I budget? Rick K2XT __ 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] OT: K440XV?
The 2M setup has connectors inside that lead me to think that a 70cm add on might be in the works for next year. If not then it was a funny way to set the 2M up ;-) 73 Dan - Dan AB3EN -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-K440XV-tp5734761p5736018.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
Re: [Elecraft] elecraft for sale
Hard to say which place is the best Jed, but this seems to be a very good place. Willis 'Cookie' Cooke K5EWJ From: Jed Barton j...@jedbarton.com To: elecraft@mailman.qth.net Sent: Sat, November 13, 2010 11:51:13 AM Subject: [Elecraft] elecraft for sale Hey guys, Would this be the best place to put an elecraft k3 up for sale? Selling it for a friend who doesn't have internet access at the moment. Thanks, Jed __ 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] K2: K2 #7029 is alive and well
Hi elecrafters After three weeks of building my new K2 #7029 is alive and well. The building went straight and without any proplems, thanks to the excellent manuals from Elecraft. The K2 #7029 is fully equipped with 100w, SSB, DSP, NB, 60m and 160m. It reminded me about my Heath HW 101 some 40 years ago. All was real fun. Thanks to Elecraft for that beautiful little toy. 73 de Hans, DF5SR, K3 #536, P3 #608 and K2 #7029 __ 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] K2: K2 #7029 is alive and well
Dr Hans, Very nice to hear! Congratulations! Hiopefully one day when I have more time, I too will join the ranks of K2 builders. Until then, I must be satisfied with the K3. :) See you on the bands OM! 73 de James K2QI On Sat, Nov 13, 2010 at 3:18 PM, Hans H Vollmer hans.h.voll...@t-online.dewrote: Hi elecrafters After three weeks of building my new K2 #7029 is alive and well. The building went straight and without any proplems, thanks to the excellent manuals from Elecraft. The K2 #7029 is fully equipped with 100w, SSB, DSP, NB, 60m and 160m. It reminded me about my Heath HW 101 some 40 years ago. All was real fun. Thanks to Elecraft for that beautiful little toy. 73 de Hans, DF5SR, K3 #536, P3 #608 and K2 #7029 __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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 APF
I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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] How do unrelated features get broken?
LOL Wayne, the day when programmers ARE NOT human is the day we had all better start running for the hills! Bill W5WVO -Original Message- From: Wayne Burdick Sent: Saturday, November 13, 2010 16:53 To: Barry Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] How do unrelated features get broken? Even though features may not be related, one can cause side-effects in another due to unintentional modification of variables. Of course we jump through a lot of hoops to avoid this, but programmers are (unfortunately) human. 73, Wayne N6KR On Nov 13, 2010, at 5:45 AM, Barry wrote: Not being a programmer, I'm just wondering how seemingly unrelated features get broken with firmware changes. For example, the current decrease in SSB power out with APF. Another example, the frequency shift casued by chaining memory buffers. Tnx, Barry -- Barry Kutner, W2UP Lakewood, CO __ 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] How do unrelated features get broken?
Their are code shooters which create code from one's instructions. They are fast but not the best at crafting algorithms which save space and time. Much like looking at the object files created by compilers when one views the raw code spewed by a code shooter a software engineer cringes. Let the compilers craft the bulk of the code to save programmer time but when necessary get into the assembly language files and craft the best and fastest code possible. Maybe one day there will be a good code shooter but programming is still a craft which requires insight and skill. 73, Kevin. KD5ONS On Sat, 13 Nov 2010 13:07:21 -0800, Bill VanAlstyne W5WVO w5...@cybermesa.net wrote: LOL Wayne, the day when programmers ARE NOT human is the day we had all better start running for the hills! Bill W5WVO -Original Message- From: Wayne Burdick Sent: Saturday, November 13, 2010 16:53 To: Barry Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] How do unrelated features get broken? Even though features may not be related, one can cause side-effects in another due to unintentional modification of variables. Of course we jump through a lot of hoops to avoid this, but programmers are (unfortunately) human. 73, Wayne N6KR On Nov 13, 2010, at 5:45 AM, Barry wrote: Not being a programmer, I'm just wondering how seemingly unrelated features get broken with firmware changes. For example, the current decrease in SSB power out with APF. Another example, the frequency shift casued by chaining memory buffers. Tnx, Barry -- Barry Kutner, W2UP Lakewood, CO __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1153 / Virus Database: 424/3254 - Release Date: 11/13/10 -- Using Opera's revolutionary email client: http://www.opera.com/mail/ - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1153 / Virus Database: 424/3254 - Release Date: 11/13/10 __ 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] How do unrelated features get broken?
One of my programmer employees once said to me when I asked why is this beta taking so long to clear...he said It takes longer to debug software than to write it. AMEN!! George, W6GF --- On Sat, 11/13/10, Bill VanAlstyne W5WVO w5...@cybermesa.net wrote: From: Bill VanAlstyne W5WVO w5...@cybermesa.net Subject: Re: [Elecraft] How do unrelated features get broken? To: Wayne Burdick n...@elecraft.com, Barry w...@comcast.net Cc: elecraft@mailman.qth.net Date: Saturday, November 13, 2010, 1:07 PM LOL Wayne, the day when programmers ARE NOT human is the day we had all better start running for the hills! Bill W5WVO -Original Message- From: Wayne Burdick Sent: Saturday, November 13, 2010 16:53 To: Barry Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] How do unrelated features get broken? Even though features may not be related, one can cause side-effects in another due to unintentional modification of variables. Of course we jump through a lot of hoops to avoid this, but programmers are (unfortunately) human. 73, Wayne N6KR On Nov 13, 2010, at 5:45 AM, Barry wrote: Not being a programmer, I'm just wondering how seemingly unrelated features get broken with firmware changes. For example, the current decrease in SSB power out with APF. Another example, the frequency shift casued by chaining memory buffers. Tnx, Barry -- Barry Kutner, W2UP Lakewood, CO __ 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 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 APF
Joe wrote: I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. Joe, I agree with your subjective observation. No, the signals don't pop as much -- but there is less ringing. This is a trade-off, of course, and the precise balance of peak gain versus ringing is always going to be a matter of personal preference. I like this less-ringy version better, I think. Haven't had time to play with it a lot yet, but I will. I'm sure we will see many other opinions. So far, I think the current version is very smooth and adequately peaky. (Opinion subject to revision upon more extensive usage.) Bill W5WVO -Original Message- From: Joe Subich, W4TV Sent: Saturday, November 13, 2010 20:35 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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 Frequency Memory Editor
Anybody on the list having trouble getting K3 Freq Memory Editor to load properly? I have one XP machine on which it works fine, and one on which it always throws a fault and quits. AFAIK, the two machines are at the same OS/SP level and both have the latest .NET service pack. Doug Wetzel K7IP __ 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 Frequency Memory Editor
Can you give some details about the fault? Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Wetzel Sent: Saturday, November 13, 2010 1:20 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Frequency Memory Editor Anybody on the list having trouble getting K3 Freq Memory Editor to load properly? I have one XP machine on which it works fine, and one on which it always throws a fault and quits. AFAIK, the two machines are at the same OS/SP level and both have the latest .NET service pack. Doug Wetzel K7IP __ 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] How do unrelated features get broken?
Unless you debug as you go. You can reduce some of the bugs by debugging sections when appropriate, but in the long run debugging takes time and many project managers don't take that into account. 73, Tom Childers Radio Amateur N5GE Licensed since 1976 QCWA Member 35102 On Sat, 13 Nov 2010 13:21:35 -0800 (PST), george fritkin georgefrit...@yahoo.com wrote: One of my programmer employees once said to me when I asked why is this beta taking so long to clear...he said It takes longer to debug software than to write it. AMEN!! George, W6GF [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 - Installation times for options
I have installed several upgrades to my original K3/10. I have found that 20 to 30 minutes will cover most items. Filters are on the low side, the sub-rec or 2meter xverter (Internal) might be a little more. The longest I have had was the KAT3 auto tuner. It took about 15 minutes to install, but another 30 minutes to locate the internal 'star' washer that slipped out of my fingers, and I was determined not to apply power 'till I had found it! It was logged in the corner, in front of the shield between a standup capacitor and the side panel in the gap behind the front panel. Would not shake out. Finally retrieved it with a 'dental' pick. I'm getting pretty good at removing the top panel by now. I hope you have as much fun and enjoyment with yours as I have with mine. The assembly was fun, but using it is even better. Good luck! ...bc nr4c -Original Message- From: Rick Stealey [mailto:rstea...@hotmail.com] Sent: Saturday, November 13, 2010 2:23 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - Installation times for options I wonder if I could get a few ideas regarding the times to install a couple options. The 100 watt PA, and the KXV3 IF interface and multiple antenna input kit. How long should I budget? Rick K2XT __ 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] K3 APF
The APF algorithm is unchanged. Lyle is going to verify. Wayne http://www.elecraft.com On Nov 13, 2010, at 1:19 PM, Bill VanAlstyne W5WVO w5...@cybermesa.net wrote: Joe wrote: I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. Joe, I agree with your subjective observation. No, the signals don't pop as much -- but there is less ringing. This is a trade-off, of course, and the precise balance of peak gain versus ringing is always going to be a matter of personal preference. I like this less-ringy version better, I think. Haven't had time to play with it a lot yet, but I will. I'm sure we will see many other opinions. So far, I think the current version is very smooth and adequately peaky. (Opinion subject to revision upon more extensive usage.) Bill W5WVO -Original Message- From: Joe Subich, W4TV Sent: Saturday, November 13, 2010 20:35 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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] K3 - Installation times for options
Hi Rick I've recently added the 100w PA, and took a leisurely hour or so. No hassle at all. John G4ZTR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Stealey Sent: 13 November 2010 19:23 To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - Installation times for options I wonder if I could get a few ideas regarding the times to install a couple options. The 100 watt PA, and the KXV3 IF interface and multiple antenna input kit. How long should I budget? Rick K2XT __ 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 __ Information from ESET NOD32 Antivirus, version of virus signature database 5617 (20101113) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5617 (20101113) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.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 APF
The APF algorithm is unchanged. Lyle is going to verify. They are identical. 73, Lyle KK7P __ 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 APF (alpha 4.21)
I agree with Joe. My first impression was a quieter APF (if that's the right word). The peaking is certainly there, and signals that are not copyable at 50 cycles are definitely copyable with the new APF activated (provided there is a copyable signal at all). But the peaked signal doesn't take your breath away like it did on the earlier version. Frankly, I prefer this newer tamed (if you will) iteration. It certainly has less ringing. You can't have both blasting and no ringing at the same time. There has to be a sweet spot and I believe version 4.21 nails it. I think there was some early confusion about what exactly is frozen when the APF is turned on. It is the SHIFT that is locked, not the WIDTH. The WIDTH control is still fully functional in APF mode with the bandwidth still being clearly indicated both numerically (0.05 and up) and by the normal width-varying graphic. When the APF is turned on, the normal DUAL PB icon we have grown used to that incorporates upward-pointing winglets is still displayed, but in APF mode the winglets are positioned at the extreme ends of the line and are fixed. They do not change position when the WIDTH control is rotated (as they do when in normal DUAL PB mode). The middle-bars between the winglets that show passband width DO change (as they always have) to visually indicate the change of bandwidth. Fixing the winglets and locating them at the far ends of the graphic display is a great idea and gives further feedback that you are definitely in APF mode and not DUAL-PB mode. I doubt anyone will confuse the two because (as in the earlier version) you have to enable the APF mode in menu item CONFIG: DUAL PB. The SSB problem in version 4.18 that required higher settings of CMP and ALC has been fixed. My MH2 microphone delivers the recommended 5-7 bars of ALC and 2-3 bars of CMP at MIC=16 and CMP=13. These are the nominal settings I have always run when circumstances force me to pull the mic out of the drawer. For some reason the boys on the Missouri SSB Traffic Net get real agitated when I check-in using a paddle. Great job, Lyle, et al. 73, Kent Trimble, K9ZTV SN 21 On 11/13/2010 2:35 PM, Joe Subich, W4TV wrote: I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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] k2 full optional for sale
Hello k2 for sale option installed: 100w, atu 100w, dsp, 160m, ssb, noiseblanker. 1100 euros plus shipping please reply to luca.amend...@uniroma1.it 73 luca -- View this message in context: http://elecraft.365791.n2.nabble.com/k2-full-optional-for-sale-tp5736377p5736377.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] K3 APF (alpha 4.21)
I agree, I like the newer version as the ringing is much less now. Jim K4JAF - Original Message - From: K9ZTV k9...@socket.net Cc: elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 4:29 PM Subject: Re: [Elecraft] K3 APF (alpha 4.21) I agree with Joe. My first impression was a quieter APF (if that's the right word). The peaking is certainly there, and signals that are not copyable at 50 cycles are definitely copyable with the new APF activated (provided there is a copyable signal at all). But the peaked signal doesn't take your breath away like it did on the earlier version. Frankly, I prefer this newer tamed (if you will) iteration. It certainly has less ringing. You can't have both blasting and no ringing at the same time. There has to be a sweet spot and I believe version 4.21 nails it. I think there was some early confusion about what exactly is frozen when the APF is turned on. It is the SHIFT that is locked, not the WIDTH. The WIDTH control is still fully functional in APF mode with the bandwidth still being clearly indicated both numerically (0.05 and up) and by the normal width-varying graphic. When the APF is turned on, the normal DUAL PB icon we have grown used to that incorporates upward-pointing winglets is still displayed, but in APF mode the winglets are positioned at the extreme ends of the line and are fixed. They do not change position when the WIDTH control is rotated (as they do when in normal DUAL PB mode). The middle-bars between the winglets that show passband width DO change (as they always have) to visually indicate the change of bandwidth. Fixing the winglets and locating them at the far ends of the graphic display is a great idea and gives further feedback that you are definitely in APF mode and not DUAL-PB mode. I doubt anyone will confuse the two because (as in the earlier version) you have to enable the APF mode in menu item CONFIG: DUAL PB. The SSB problem in version 4.18 that required higher settings of CMP and ALC has been fixed. My MH2 microphone delivers the recommended 5-7 bars of ALC and 2-3 bars of CMP at MIC=16 and CMP=13. These are the nominal settings I have always run when circumstances force me to pull the mic out of the drawer. For some reason the boys on the Missouri SSB Traffic Net get real agitated when I check-in using a paddle. Great job, Lyle, et al. 73, Kent Trimble, K9ZTV SN 21 On 11/13/2010 2:35 PM, Joe Subich, W4TV wrote: I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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_APF
Hello All, Is the APF in the IF stage ? Ken K5DNL __ 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 APF
KK7P wrote: The APF algorithm is unchanged. Lyle is going to verify. They are identical. Maybe not quite identical. The new algorithm is zero beat and the initial one peaked at +10 Hz above zero beat. It could be that guys were not tuning to the actual peak so the residual ringing could have been several dB stronger than the signal (relatively) making one think there was more ringing. Now the zero beat signal may appear stronger than the residual ringing (on noise) since it is better centered. BTW the filter response measures about -4 dB at a 10 Hz offset, which is quite noticeable on weak signals. I personally don't notice any difference but I had been peaking each signal using VFO-FINE in 1 Hz steps (which is how I found the +10 Hz offset in the initial version). 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-APF-tp5735159p5736422.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] K3_APF
K5DNL wrote: Is the APF in the IF stage ? Yes in the DSP IF stage. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-APF-tp5736402p5736428.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] Elecraft SSB Net Announcement
The weekly Elecraft SSB net will meet tomorrow (11/14/10) at 1800z
on 14.314
MHz. I will be net control from western Oregon, and I will try to
swing the
antenna in multiple directions to get as many of you as I can. We'll
try
back east calling stations and relays too. See you then.
73,
Phil NS7P BODY { font-family:Arial, Helvetica,
sans-serif;font-size:12px; }
__
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] Help for newbie
I just finished putting together the basic k3(10w) and (prior to installing the amp and sub receiver) tried to do the 5w transmitter gain calibration, but am not having any luck. The result was that the utility just hung and the result was the power settled at 0.0w Anyone have any idea what I am doing wrong. I have the ATU installed, but if I press the ANT button, I am told No ATU. I tried hooking it to an antenna, but the antenna doesn't seem connected. No RX, just rushing sound like the antenna is not connected. I suspect the path to the Ant1 PL259 is not working for some reason. I have backtracked and checked my work a couple times and can't find anything out of place. Any help? -- 73, Bob K5SM __ 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: Right paddle key not working?
What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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] K2 deaf
Folks, i have an old K2, s/n 0505 which was built by a friend, then later sold to me. It has started to go deaf. At first a tap on the key or paddle would immediately restore it to normal, but its now getting to be noisy most of the time and a struggle to hear signals at all sometimes. I confess to feeling a little lost inside the rig (its more complicated than my lovely little K1 for sure) but I have tried checking for dry joints, and have been round as much as I could reach with a soldering iron, though the guy who built it is a skilled home-brewer and he'd be unlikely to have messed up like that. Besides the rig has worked well for years, and started playing up in a mild way perhaps two years ago, and just lately has got much worse. Help! Any suggestions to guide me would be appreciated. Regards, Les Austin g0nmd __ 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] K2 deaf
Make sure that you have ruled out problems with coax connectors, baluns, etc. The 'tap on the key fixes it' phenomenon is common when there is a poor connection in the antenna system. On 11/13/2010 4:05 PM, Leslie Austin wrote: Folks, i have an old K2, s/n 0505 which was built by a friend, then later sold to me. It has started to go deaf. At first a tap on the key or paddle would immediately restore it to normal, but its now getting to be noisy most of the time and a struggle to hear signals at all sometimes. I confess to feeling a little lost inside the rig (its more complicated than my lovely little K1 for sure) but I have tried checking for dry joints, and have been round as much as I could reach with a soldering iron, though the guy who built it is a skilled home-brewer and he'd be unlikely to have messed up like that. Besides the rig has worked well for years, and started playing up in a mild way perhaps two years ago, and just lately has got much worse. Help! Any suggestions to guide me would be appreciated. Regards, Les Austin g0nmd -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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] K2 deaf
Les. Heed the sage advice of Vic who responded a few minutes ago. That being said, those symptoms are typical of a poorly soldered connection somewhere. It would be helpful if you could get the antenna out of the picture and replace it with a low level signal generator. If it displays the same behavior with the signal generator, then the problem is in the K2, but if it does not, look at your antenna system for the solution. Do you have the basic K2? or the KAT2 option? or the KPA100? or the KAT100. There can be several pieces in the receive path, and any of them are suspect until they have proven their worthiness. If you do have multiple options, and you must use your antenna system for evaluation, try connecting another transceiver to the antenna system and see if you have the same failure - if not, then you can break down the K2 to its basic configuration for troubleshooting - then add the KAT2, KPA100, KAT100 one at a time until the failure occurs. That will tell you which piece of gear to examine in detail. 73, Don W3FPR On 11/13/2010 7:05 PM, Leslie Austin wrote: Folks, i have an old K2, s/n 0505 which was built by a friend, then later sold to me. It has started to go deaf. At first a tap on the key or paddle would immediately restore it to normal, but its now getting to be noisy most of the time and a struggle to hear signals at all sometimes. I confess to feeling a little lost inside the rig (its more complicated than my lovely little K1 for sure) but I have tried checking for dry joints, and have been round as much as I could reach with a soldering iron, though the guy who built it is a skilled home-brewer and he'd be unlikely to have messed up like that. Besides the rig has worked well for years, and started playing up in a mild way perhaps two years ago, and just lately has got much worse. __ 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: Right paddle key not working?
James, Remove the key from the equation. Insert a stereo plug with the ring soldered to the sleeve. Does the K3 make dashes? If so, then you can blame your paddles and their plug. If not, then there is something wrong with your K3. 73, Don W3FPR On 11/13/2010 6:53 PM, James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? __ 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] Fwd: [qrp-l.org] K8DD final update 11-13-10
I am deeply saddened by the loss of Hank Kohl K8DD. He will be missed. I knew Hank through QRP ARCI, but at times he was active on the Elecraft reflector too. I am certain many of you were acquainted with Hank - Dayton 2011 and FDIM will just not be the same without him. 73, Don W3FPR Original Message Subject:[qrp-l.org] K8DD final update 11-13-10 Date: Sat, 13 Nov 2010 11:05:34 -0500 From: Mike - WB8ICN wb8...@gmail.com To: FP at MPNA fpqr...@mpna.com, Ian C. Purdie ianpur...@integritynet.com.au, G-QRP Group g...@yahoogroups.com, qr...@qrp-l.org qr...@qrp-l.org, qr...@mailman.qth.net This may be the hardest email I've ever written. At 5:33 a.m. this morning Henry Richard Kohl passed away from respiratory complications in the ICU of Henry Ford Detroit. Hank was surrounded by his wife Kathie, son Andy and friends Trish and Stan Arnett. Per his wishes there will not be a funeral, but a memorial service will be held sometime in the Spring. Kath extends her thanks to everyone for their cards, prayers and well wishes. K8DD (SK) RIP I'll try to write more when I'm less likely to short the keyboard with tears Stan, AC8W -- 72's/73's...Mikey, WB8ICN www.qsl.net/wb8icn __ 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 APF
I'll count this as another vote in favor of adding the Variable Q setting... At least a choice of 3 perhaps Wide, Med and Narrow. Even if one perceives the APF as less ringy and comments on it being a good thing, that means that they are happy to know that the Q got widened out a little, and things seem to sound better. From: w5...@cybermesa.net To: li...@subich.com; elecraft@mailman.qth.net Date: Sat, 13 Nov 2010 21:19:46 + Subject: Re: [Elecraft] K3 APF Joe wrote: I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. Joe, I agree with your subjective observation. No, the signals don't pop as much -- but there is less ringing. This is a trade-off, of course, and the precise balance of peak gain versus ringing is always going to be a matter of personal preference. I like this less-ringy version better, I think. Haven't had time to play with it a lot yet, but I will. I'm sure we will see many other opinions. So far, I think the current version is very smooth and adequately peaky. (Opinion subject to revision upon more extensive usage.) Bill W5WVO -Original Message- From: Joe Subich, W4TV Sent: Saturday, November 13, 2010 20:35 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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] K3: Right paddle key not working?
Hi Don, I just did that. I can short tip to ground and get dits, but shorting ring to ground produces nothing. Looks like there's something wrong with the K3. What should I look for at this point? Tnx, James K2QI On Sat, Nov 13, 2010 at 7:52 PM, Don Wilhelm w3...@embarqmail.com wrote: James, Remove the key from the equation. Insert a stereo plug with the ring soldered to the sleeve. Does the K3 make dashes? If so, then you can blame your paddles and their plug. If not, then there is something wrong with your K3. 73, Don W3FPR On 11/13/2010 6:53 PM, James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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 APF
Are you sure that the problem isn't your REF CAL settings are off from where you think they are? Date: Sat, 13 Nov 2010 15:02:43 -0800 From: btipp...@alum.mit.edu To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF KK7P wrote: The APF algorithm is unchanged. Lyle is going to verify. They are identical. Maybe not quite identical. The new algorithm is zero beat and the initial one peaked at +10 Hz above zero beat. It could be that guys were not tuning to the actual peak so the residual ringing could have been several dB stronger than the signal (relatively) making one think there was more ringing. Now the zero beat signal may appear stronger than the residual ringing (on noise) since it is better centered. BTW the filter response measures about -4 dB at a 10 Hz offset, which is quite noticeable on weak signals. I personally don't notice any difference but I had been peaking each signal using VFO-FINE in 1 Hz steps (which is how I found the +10 Hz offset in the initial version). 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-APF-tp5735159p5736422.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 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: Right paddle key not working?
James, Did you plug in to the Paddle plug or the Key plug? Rick K6LE On 11/13/2010, at 3:53 , James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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: Right paddle key not working?
Hi Rick, It was plugged into the Paddle jack. I just replied to Don; did a test where I removed the plastic plug cover and inserted the plug into the paddle jack. I shorted tip to ground and got dits. Shorted ring to ground produces nothing. I even checked the continuity on the plug itself; all contacts are good. Looks to me like there might be something wrong with the K3's jack or perhaps something more... not sure yet. Tnx, James K2QI On Sat, Nov 13, 2010 at 8:09 PM, Rick Prather k6limae...@gmail.com wrote: James, Did you plug in to the Paddle plug or the Key plug? Rick K6LE On 11/13/2010, at 3:53 , James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN -- 73 de James K2QI President UNARC/4U1UN __ 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] off on 20 meters
Hi all, Its been a long time since I tinkered with my K2 and I am getting reports that I am a few KC's off on 20M sure enough they sound that way too, so when I tune them in better, I am about 7-8 Kc off frequency what should I start looking at? -Neil Ac2o __ 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 APF
The Smiths wrote: Are you sure that the problem isn't your REF CAL settings are off from where you think they are? Quite sure...Lyle verified the +10 Hz offset and corrected it in the latest version. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-APF-tp5735159p5736629.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] KX1 died. Where to start?
Don, Removed and re-seated the MCU. No change in operation. Also closely inspected for no/bad solder -- all looks good. Kept thinking about if I could have done anything to cause this. I remembered I had both the KX1 and my K3 connected via 18 jumpers to a coax A/B switch to share my main HF antenna. Was doing some receiver comparisons between the two, and have used this configuration to easily use the KX1 indoors with the main antenna. Always before I have always disconnected the coax from the KX1 before transmitting with the K3 (as well as moving the A/B switch to the K3 position). The last time I had the KX1 hooked up this way, I may not have removed the coax from the KX1 before using my K3 on 40m cw, and 80m SSB. I'm not sure I tried/used the KX1 after doing this. Could strong RF from the K3 maybe have fried the KX1 MCU (or other component)? Perhaps the A/B switch isolation is not so good -- or stray RF, etc.? Oscar, WB5GCX -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-died-Where-to-start-tp5734439p5736635.html Sent from the [KX1] 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] K3: Right paddle key not working?
Here's what I did now to rule out the actual K3 jack: I took the rear bottom panel off. I checked continuity with a plug connected to the socket. I touched ground on the plug and G on the RF main board and that passed. Did the same with ring R, and tip T, and all passed. So there doesn't appear to be anything wrong with the contacts inside the jack itself. Strange... -- 73 de James K2QI President UNARC/4U1UN __ 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: Right paddle key not working?
I wonder if the solder joint for the K3's key jack is cracked. I've had that happen on other rigs. Shine a bright light on the solder joint and use a magnifying glass to examine. N4LQ Steve - Original Message - From: James Sarte k2qi@gmail.com To: Rick Prather k6limae...@gmail.com Cc: Elecraft Elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 8:13 PM Subject: Re: [Elecraft] K3: Right paddle key not working? Hi Rick, It was plugged into the Paddle jack. I just replied to Don; did a test where I removed the plastic plug cover and inserted the plug into the paddle jack. I shorted tip to ground and got dits. Shorted ring to ground produces nothing. I even checked the continuity on the plug itself; all contacts are good. Looks to me like there might be something wrong with the K3's jack or perhaps something more... not sure yet. Tnx, James K2QI On Sat, Nov 13, 2010 at 8:09 PM, Rick Prather k6limae...@gmail.com wrote: James, Did you plug in to the Paddle plug or the Key plug? Rick K6LE On 11/13/2010, at 3:53 , James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN -- 73 de James K2QI President UNARC/4U1UN __ 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] soldering station
Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC Get Free Email with Video Mail Video Chat! http://www.juno.com/freeemail?refcd=JUTAGOUT1FREM0210 __ 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: Right paddle key not working?
Hi Steve, I checked the solder joints too when I was testing continuity on the jack itself. All looks OK. Not sure what else can be wrong at this point. Plug is OK, jack is OK, paddle is good, and the jack itself looks to be soldered well onto the main board. I'm at a loss... 73 de James K2QI On Sat, Nov 13, 2010 at 8:40 PM, Steve Ellington n...@carolina.rr.comwrote: I wonder if the solder joint for the K3's key jack is cracked. I've had that happen on other rigs. Shine a bright light on the solder joint and use a magnifying glass to examine. N4LQ Steve __ 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: Right paddle key not working?
James, Based on your other posts to the reflector where you checked continuity inside the K3, I would suggest a new download of the firmware, save your configuration, then do an EE INIT. Install the firmware via K3 Utility, restore your configuration and see if anything changes. If that fails to correct it, an email to k3supp...@elecraft.com is in order. Why do these things always happen on the weekend?? 73, Don W3FPR On 11/13/2010 8:09 PM, James Sarte wrote: Hi Don, I just did that. I can short tip to ground and get dits, but shorting ring to ground produces nothing. Looks like there's something wrong with the K3. What should I look for at this point? Tnx, James K2QI On Sat, Nov 13, 2010 at 7:52 PM, Don Wilhelm w3...@embarqmail.com mailto:w3...@embarqmail.com wrote: James, Remove the key from the equation. Insert a stereo plug with the ring soldered to the sleeve. Does the K3 make dashes? If so, then you can blame your paddles and their plug. If not, then there is something wrong with your K3. 73, Don W3FPR On 11/13/2010 6:53 PM, James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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] off on 20 meters
Neil, For K2 Dial Calibration issues, go to my website www.w3fpr.com and look at the K2 Dial Calibration article there. It should solve your problem - do the whole process including the filter parts. 73, Don W3FPR On 11/13/2010 8:21 PM, Neil Shubert wrote: Hi all, Its been a long time since I tinkered with my K2 and I am getting reports that I am a few KC's off on 20M sure enough they sound that way too, so when I tune them in better, I am about 7-8 Kc off frequency what should I start looking at? -Neil Ac2o __ 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] K3: Right paddle key not working?
I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Saturday, November 13, 2010 5:58 PM To: James Sarte Cc: Elecraft Subject: Re: [Elecraft] K3: Right paddle key not working? James, Based on your other posts to the reflector where you checked continuity inside the K3, I would suggest a new download of the firmware, save your configuration, then do an EE INIT. Install the firmware via K3 Utility, restore your configuration and see if anything changes. If that fails to correct it, an email to k3supp...@elecraft.com is in order. Why do these things always happen on the weekend?? 73, Don W3FPR On 11/13/2010 8:09 PM, James Sarte wrote: Hi Don, I just did that. I can short tip to ground and get dits, but shorting ring to ground produces nothing. Looks like there's something wrong with the K3. What should I look for at this point? Tnx, James K2QI On Sat, Nov 13, 2010 at 7:52 PM, Don Wilhelm w3...@embarqmail.com mailto:w3...@embarqmail.com wrote: James, Remove the key from the equation. Insert a stereo plug with the ring soldered to the sleeve. Does the K3 make dashes? If so, then you can blame your paddles and their plug. If not, then there is something wrong with your K3. 73, Don W3FPR On 11/13/2010 6:53 PM, James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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] KX1 died. Where to start?
Oscar, If your coax switch was connected properly, no harm should have been done to the KX1. OK, now that the MCU chip has been verified as fully seated, you are in for some in-depth troubleshooting. The first thing that should be checked is the DDS frequency - but if you do not have a frequency counter, that is difficult. I assume you do have another HF receiver (the K3 if nothing else) - if so, operate the KX1 into a dummy load and couple the other receiver near the dummy load with a short antenna - you should hear the KX1 transmit quite close to the frequency on the KX1 dial. If the KX1 transmit frequency is close to the frequency the KX1 is tuned to, that part is good, and we can rule out the KX1 MCU and DDS for transmit. Next, try a quick and dirty check of the KX1 receiver - connect the center conductor of your antenna (using a jumper wire) to U6 pin 1 - do you hear signals as you tune? If not, you are in for some greater in depth signal tracing (tell me what equipment you have available) - but if you do, then the problem is in the Low Pass Filter of your KX1. 73, Don W3FPR On 11/13/2010 8:27 PM, Oscar, WB5GCX wrote: Don, Removed and re-seated the MCU. No change in operation. Also closely inspected for no/bad solder -- all looks good. Kept thinking about if I could have done anything to cause this. I remembered I had both the KX1 and my K3 connected via 18 jumpers to a coax A/B switch to share my main HF antenna. Was doing some receiver comparisons between the two, and have used this configuration to easily use the KX1 indoors with the main antenna. Always before I have always disconnected the coax from the KX1 before transmitting with the K3 (as well as moving the A/B switch to the K3 position). The last time I had the KX1 hooked up this way, I may not have removed the coax from the KX1 before using my K3 on 40m cw, and 80m SSB. I'm not sure I tried/used the KX1 after doing this. Could strong RF from the K3 maybe have fried the KX1 MCU (or other component)? Perhaps the A/B switch isolation is not so good -- or stray RF, etc.? Oscar, WB5GCX __ 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] soldering station
Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC Get Free Email with Video Mail Video Chat! http://www.juno.com/freeemail?refcd=JUTAGOUT1FREM0210 __ 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] Re： soldering station
Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelm w3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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 APF
I'll count this as another vote in favor of adding the Variable Q setting... Not on your life. The lack of ringing on the newer version seems to go along with a general decline in effectiveness. If anything I'd prefer to see higher Q. Just for grins I reloaded 4.16 to make the same measurements using the XG-2 as I made on 4.21. Here is the comparison: BW 4.21 4.16 - 0 dB1 2 Hz -1 dB8 9 Hz -6 dB 31 31 Hz -10 dB 52 49 Hz -20 dB 165162 Hz -30 dB 345351 Hz Gain 9.09.1 dB Unlike W4ZV, I found only a 3 Hz offset in 4.16 (the peak response was 3 Hz above zero beat - or the indicated spot/shift frequency). Even though the test results were generally the same within the measurement tolerances, I still feel the 4.16 version was more effective in on air listening. These measurements were generated with an XG-2 set for 1 uV with the K3 attenuator engaged for an effective signal level of -118 dBm. 73, ... Joe, W4TV On 11/13/2010 8:07 PM, The Smiths wrote: I'll count this as another vote in favor of adding the Variable Q setting... At least a choice of 3 perhaps Wide, Med and Narrow. Even if one perceives the APF as less ringy and comments on it being a good thing, that means that they are happy to know that the Q got widened out a little, and things seem to sound better. From: w5...@cybermesa.net To: li...@subich.com; elecraft@mailman.qth.net Date: Sat, 13 Nov 2010 21:19:46 + Subject: Re: [Elecraft] K3 APF Joe wrote: I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. Joe, I agree with your subjective observation. No, the signals don't pop as much -- but there is less ringing. This is a trade-off, of course, and the precise balance of peak gain versus ringing is always going to be a matter of personal preference. I like this less-ringy version better, I think. Haven't had time to play with it a lot yet, but I will. I'm sure we will see many other opinions. So far, I think the current version is very smooth and adequately peaky. (Opinion subject to revision upon more extensive usage.) Bill W5WVO -Original Message- From: Joe Subich, W4TV Sent: Saturday, November 13, 2010 20:35 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the gain (APF vs not) which I didn't do before...+9.1 dB which is very close to Lyle's design goal of +9 dB. Nice job Elecraft! 73, Bill __ 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
Re: [Elecraft] K3 APF
Probably why it sounds the same to me. Wes --- On Sat, 11/13/10, Wayne Burdick n...@elecraft.com wrote: The APF algorithm is unchanged. Lyle is going to verify. Wayne __ 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: Right paddle key not working?
Hi Gene, After following Don's advice to do an EE Init and reload, I still had the same problem. I then removed the bottom plate and checked RFC3 and RFC4. Continuity check shows that RFC3 is ok, but RFC4 has no continuity. How did Gary suggest you fix RFC4? Did you resolder the choke? If so, how did you do it - from the bottom of the board where the choke is mounted, or did you have to solder from the other side? If it's from the other side, wow.. I'm not looking forward to tearing the K3 apart. That's a lot of work. Pse advise. Mni tnx es vy 73 de James K2QI On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorff k6...@sbcglobal.netwrote: I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Saturday, November 13, 2010 5:58 PM To: James Sarte Cc: Elecraft Subject: Re: [Elecraft] K3: Right paddle key not working? James, Based on your other posts to the reflector where you checked continuity inside the K3, I would suggest a new download of the firmware, save your configuration, then do an EE INIT. Install the firmware via K3 Utility, restore your configuration and see if anything changes. If that fails to correct it, an email to k3supp...@elecraft.com is in order. Why do these things always happen on the weekend?? 73, Don W3FPR On 11/13/2010 8:09 PM, James Sarte wrote: Hi Don, I just did that. I can short tip to ground and get dits, but shorting ring to ground produces nothing. Looks like there's something wrong with the K3. What should I look for at this point? Tnx, James K2QI On Sat, Nov 13, 2010 at 7:52 PM, Don Wilhelm w3...@embarqmail.com mailto:w3...@embarqmail.com wrote: James, Remove the key from the equation. Insert a stereo plug with the ring soldered to the sleeve. Does the K3 make dashes? If so, then you can blame your paddles and their plug. If not, then there is something wrong with your K3. 73, Don W3FPR On 11/13/2010 6:53 PM, James Sarte wrote: What am I doing wrong? I hooked up an old iambic paddle to the K3 a few moments ago. Left paddle works fine; gives me a string of dots. Right paddle doesn't do anything. I checked continuity on tip, ring, and ground and everything tests fine. Is there something I'm not doing right with the K3?? -- 73 de James K2QI President UNARC/4U1UN __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] off on 20 meters
Hi I was looking for Spectrogram, my old computer crashed and I wanted to download it, Looks like it is no longer available!! Sam kf4yox -Original Message- From: Don Wilhelm Sent: Saturday, November 13, 2010 9:01 PM To: Neil Shubert Cc: elecraft group Subject: Re: [Elecraft] off on 20 meters Neil, For K2 Dial Calibration issues, go to my website www.w3fpr.com and look at the K2 Dial Calibration article there. It should solve your problem - do the whole process including the filter parts. 73, Don W3FPR On 11/13/2010 8:21 PM, Neil Shubert wrote: Hi all, Its been a long time since I tinkered with my K2 and I am getting reports that I am a few KC's off on 20M sure enough they sound that way too, so when I tune them in better, I am about 7-8 Kc off frequency what should I start looking at? -Neil Ac2o __ 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] Re： soldering station
Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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] KX1 died. Where to start?
Don, You said you should hear the KX1 transmit quite close to the frequency on the KX1 dial But the display is not working on the KX1, so I don't know what band or frequency it's on... The only signs of life are: 1) some white noise through the earbuds when I turn on the KX1, and 2) the white LED will come on when I switch it on. I have no test equipment other than a decent VOM, so if it's not something pretty obvious I might have to send to Elecraft... thanks, Oscar, WB5GCX -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-died-Where-to-start-tp5734439p5736741.html Sent from the [KX1] 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] off on 20 meters
Sam, Go to www.n0ss.net and download it from there. If you are not successful there, email me direct and I will send you either Specrtogram 5.17 or Spectrogram 16 which had both been released as Freeware before the author pulled the plug on all his software. 73, Don W3FPR On 11/13/2010 9:31 PM, Samuel Strongin wrote: Hi I was looking for Spectrogram, my old computer crashed and I wanted to download it, Looks like it is no longer available!! Sam kf4yox -Original Message- From: Don Wilhelm Sent: Saturday, November 13, 2010 9:01 PM To: Neil Shubert Cc: elecraft group Subject: Re: [Elecraft] off on 20 meters Neil, For K2 Dial Calibration issues, go to my website www.w3fpr.com and look at the K2 Dial Calibration article there. It should solve your problem - do the whole process including the filter parts. 73, Don W3FPR On 11/13/2010 8:21 PM, Neil Shubert wrote: Hi all, Its been a long time since I tinkered with my K2 and I am getting reports that I am a few KC's off on 20M sure enough they sound that way too, so when I tune them in better, I am about 7-8 Kc off frequency what should I start looking at? -Neil Ac2o __ 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 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] Re： soldering station
I use an Aoyue 937+ which I bought for around 50 dollars. Has lots of tip choices. I believe the Hakko tips will fit also. This soldering station's temperature is digitally controlled and the tip is ESD protected. 73, James K2QI On Sat, Nov 13, 2010 at 9:44 PM, Don Wilhelm w3...@embarqmail.com wrote: Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] Re： soldering station
I use a Metcal at work think its the best I've ever seen. Its just too expensive for mere mortals (they cost more used than many stations do brand new. :-) --Lenny W2BVH On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan.  cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳é€æ—¥æœŸï¹• 2010/11/14 (æ—¥) 10:18:21 AM 主題： Re: [Elecraft] soldering station  Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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] K3: Right paddle key not working?
Darnit. I took half the K3 apart. Nevermind, guess I cant see the solder pins from the top as they're actually covered by the jack housings. OK... on to step two. James K2QI On Sat, Nov 13, 2010 at 9:31 PM, James Sarte k2qi@gmail.com wrote: Hi Gene, After following Don's advice to do an EE Init and reload, I still had the same problem. I then removed the bottom plate and checked RFC3 and RFC4. Continuity check shows that RFC3 is ok, but RFC4 has no continuity. How did Gary suggest you fix RFC4? Did you resolder the choke? If so, how did you do it - from the bottom of the board where the choke is mounted, or did you have to solder from the other side? If it's from the other side, wow.. I'm not looking forward to tearing the K3 apart. That's a lot of work. Pse advise. Mni tnx es vy 73 de James K2QI On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorff k6...@sbcglobal.netwrote: I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM __ 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] Re： soldering station
The Aoyue, CSI, and Hakko should use interchangeable tips and heaters. The Aoyue 937/937+ appears identical to the Circuit Specialist (CSI) and essentially the same has the Hakko 936/937. Analog Aoyue/CSI sells for about USD $40. Digital about $5 more. I think if I was going to pay Hakko's price, I would lean toward the Weller WES51 at USD $95. Paul, W9AC - Original Message - From: James Sarte k2qi@gmail.com To: d...@w3fpr.com Cc: elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 9:54 PM Subject: Re: [Elecraft] Re： soldering station I use an Aoyue 937+ which I bought for around 50 dollars. Has lots of tip choices. I believe the Hakko tips will fit also. This soldering station's temperature is digitally controlled and the tip is ESD protected. 73, James K2QI On Sat, Nov 13, 2010 at 9:44 PM, Don Wilhelm w3...@embarqmail.com wrote: Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] Re： Re： soldering station
Yes, James. I have been using Aoyue 937 as well for nearly 4 years. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ James Sarte k2qi@gmail.com 收件人﹕ d...@w3fpr.com 副本(CC) elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:54:31 AM 主題： Re: [Elecraft] Re： soldering station I use an Aoyue 937+ which I bought for around 50 dollars. Has lots of tip choices. I believe the Hakko tips will fit also. This soldering station's temperature is digitally controlled and the tip is ESD protected. 73, James K2QI On Sat, Nov 13, 2010 at 9:44 PM, Don Wilhelm w3...@embarqmail.com wrote: Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC list: http://www.qsl.net/donate.htm __ 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] soldering station
Oh yes, my Aoyue only costs me US$20 in Hong Kong. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Paul Christensen w...@arrl.net 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 11:10:56 AM 主題： Re: [Elecraft] Re： soldering station The Aoyue, CSI, and Hakko should use interchangeable tips and heaters. The Aoyue 937/937+ appears identical to the Circuit Specialist (CSI) and essentially the same has the Hakko 936/937. Analog Aoyue/CSI sells for about USD $40. Digital about $5 more. I think if I was going to pay Hakko's price, I would lean toward the Weller WES51 at USD $95. Paul, W9AC - Original Message - From: James Sarte k2qi@gmail.com To: d...@w3fpr.com Cc: elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 9:54 PM Subject: Re: [Elecraft] Re： soldering station I use an Aoyue 937+ which I bought for around 50 dollars. Has lots of tip choices. I believe the Hakko tips will fit also. This soldering station's temperature is digitally controlled and the tip is ESD protected. 73, James K2QI On Sat, Nov 13, 2010 at 9:44 PM, Don Wilhelm w3...@embarqmail.com wrote: Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] Re： soldering station
I use a couple of Therm-o-Trac irons made by Hexacon. They are very good for surface mount work. Metcals are good expensive as you pointed out but they produce short range RFI. Hardy N7RT - Original Message - From: w2bvh w2...@comcast.net To: Johnny Siu vr2...@yahoo.com.hk Cc: Elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 7:56 PM Subject: Re: [Elecraft] Re： soldering station I use a Metcal at work think its the best I've ever seen. Its just too expensive for mere mortals (they cost more used than many stations do brand new. :-) --Lenny W2BVH On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan.  cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳é€æ—¥æœŸï¹• 2010/11/14 (æ—¥) 10:18:21 AM 主題： Re: [Elecraft] soldering station  Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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] soldering station
As we consider the lowly soldering station, may I ask the consesus of the hot air/soldering station combo... i.e. which is the preferred, and has the best longevity? I've had two of the KADA 852 units and three hot air guns break, within hours of initial use. Anyone for any better results? I need hot air, temp and volume controllable, and a temp controlled solder iron similar to the weller. AND.. it would be real nice if it would shut itself off after a short period of nonuse. Say... 10 minutes. And the hot air gun/wand, could shut off when returned to its holder. Not a tuff circuit to build. Any suggestions? And no, I am not looking for the $1000 plus machines either. --... ...-- Dale - WC7S in Wy __ 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: Right paddle key not working?
Gene et all, I reheated the contacts on RFC4 to the point that I think I even slightly warped the casing of the choke on one side. No good. No continuity at all from any of the trace points or direct contact with the chokes leads. Looks like RFC4 is dead and K3 #2730 will have to go back to Aptos for repair. 73 de James K2QI On Sat, Nov 13, 2010 at 10:02 PM, James Sarte k2qi@gmail.com wrote: On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorff k6...@sbcglobal.netwrote: I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM -- 73 de James K2QI President UNARC/4U1UN __ 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: Right paddle key not working?
Just bypass it with a piece of wire. It probably won't matter. It might take months to get your K3 back! N4LQ Steve - Original Message - From: James Sarte k2qi@gmail.com To: Gene Langendorff k6...@sbcglobal.net Cc: Elecraft Elecraft@mailman.qth.net; d...@w3fpr.com Sent: Saturday, November 13, 2010 10:56 PM Subject: Re: [Elecraft] K3: Right paddle key not working? Gene et all, I reheated the contacts on RFC4 to the point that I think I even slightly warped the casing of the choke on one side. No good. No continuity at all from any of the trace points or direct contact with the chokes leads. Looks like RFC4 is dead and K3 #2730 will have to go back to Aptos for repair. 73 de James K2QI On Sat, Nov 13, 2010 at 10:02 PM, James Sarte k2qi@gmail.com wrote: On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorff k6...@sbcglobal.netwrote: I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM -- 73 de James K2QI President UNARC/4U1UN __ 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] K3 APF
Joe, If Lyle is using the same algorithm as before, and your results are as indicated below (virtually a tie), I don't understand how you could be hearing a lack of ringing in the new revision. I simply cannot hear any difference myself, and I'm extremely picky. We have nearly 100 people testing, and only two or three have perceived a difference, so given the statistical evidence, I'd suggest that background noise conditions are the variable here, not the firmware. Lyle has also completely reviewed the DSP implementation -- no change. But since the customers are always right, I'm still in a quandry :) tnx Wayne On Nov 13, 2010, at 6:27 PM, Joe Subich, W4TV wrote: I'll count this as another vote in favor of adding the Variable Q setting... Not on your life. The lack of ringing on the newer version seems to go along with a general decline in effectiveness. If anything I'd prefer to see higher Q. Just for grins I reloaded 4.16 to make the same measurements using the XG-2 as I made on 4.21. Here is the comparison: BW 4.21 4.16 - 0 dB 1 2 Hz -1 dB 8 9 Hz -6 dB 31 31 Hz -10 dB 52 49 Hz -20 dB 165162 Hz -30 dB 345351 Hz Gain 9.09.1 dB Unlike W4ZV, I found only a 3 Hz offset in 4.16 (the peak response was 3 Hz above zero beat - or the indicated spot/shift frequency). Even though the test results were generally the same within the measurement tolerances, I still feel the 4.16 version was more effective in on air listening. These measurements were generated with an XG-2 set for 1 uV with the K3 attenuator engaged for an effective signal level of -118 dBm. 73, ... Joe, W4TV On 11/13/2010 8:07 PM, The Smiths wrote: I'll count this as another vote in favor of adding the Variable Q setting... At least a choice of 3 perhaps Wide, Med and Narrow. Even if one perceives the APF as less ringy and comments on it being a good thing, that means that they are happy to know that the Q got widened out a little, and things seem to sound better. From: w5...@cybermesa.net To: li...@subich.com; elecraft@mailman.qth.net Date: Sat, 13 Nov 2010 21:19:46 + Subject: Re: [Elecraft] K3 APF Joe wrote: I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. Joe, I agree with your subjective observation. No, the signals don't pop as much -- but there is less ringing. This is a trade-off, of course, and the precise balance of peak gain versus ringing is always going to be a matter of personal preference. I like this less-ringy version better, I think. Haven't had time to play with it a lot yet, but I will. I'm sure we will see many other opinions. So far, I think the current version is very smooth and adequately peaky. (Opinion subject to revision upon more extensive usage.) Bill W5WVO -Original Message- From: Joe Subich, W4TV Sent: Saturday, November 13, 2010 20:35 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 APF I made a similar set of measurements ... using the XG-2 and the AFV/dBV capability ... I measure the peak at 1 Hz wide (e.g. -.1dB +/- 1 Hz) the 1 dB points are 8 Hz wide the 6 dB points are 31 Hz wide the 20 dB points are 165 Hz wide the 30 dB points are 345 Hz wide gain is right at 9 dB. The measurements were made on 40 Meters with the XG-2 set to 1 uV and the K3 attenuator activated yielding a -108 dBm test signal. I did not make similar measurements with the original alpha test version but this version seems subjectively less tight than the original ... there is certainly less ringing with this one but signals did not seem to pop like they did on the earlier version when I tried it last night on 160/80/40. 73, ... Joe, W4TV On 11/13/2010 1:24 PM, Bill W4ZV wrote: For my own curiosity I did some measurements of the latest APF. They agree with measurements of the first release with the exception that the filter peak is now zero beat instead of +10 Hz: Zero beat = 7040.021 Flat passband = 021-020 (both 0.0 to -0.1 dB) -1 dB passband = 026-018 (-1.2 dB and -0.8 dB) -6 dB passband = 037-009 (-5.8 and -6.0 dB) Flat = 2 Hz BW (at zero beat) -1 dB = 8 Hz BW -6 dB = 28 Hz BW I didn't measure the -6 dB BW carefully on the first pass since I was more interested in the -1 dB BW, but this looks similar and agrees with Lyle's 30 Hz design goal. As mentioned previously, the -1 dB BW is important when trying to detect signals below the noise floor since the human ear can detect this difference in marginal conditions. I also checked the
[Elecraft] Elecraft CW Net Announcement
Good Evening, It is chilly, foggy, and wet here. The fire feels good but the rain sounds nice and the gloomy weather induces a contemplative setting for my computer work. I have been playing with Virtual Box today creating a series of virtual machines. It is fun being able to instantiate a new OS in just a few seconds. Or I can load applications for a certain work environment and have another set of tools for another setting each in their own VM. Very simple and quick with Virtual Box. Ubuntu or Windows or even both simultaneously with shared resources. I have not listened to the radio recently but reports I have been reading are for great propagation. Let's test them tomorrow. Please join us tomorrow afternoon and evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) Sunday 2300z (Sunday 3 PM PST) 14050 kHz Monday 0100z (Sunday 5 PM PST) 7045 kHz Stay well, Kevin. KD5ONS - -- Using Opera's revolutionary email client: http://www.opera.com/mail/ - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1153 / Virus Database: 424/3255 - Release Date: 11/13/10 __ 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: Right paddle key not working?
If you could get to it to reheat the terminals, you can replace it. And, as the previous poster indicated, it's just an RF filter for the paddle. Chances are you can short it out and you won't have a problem. You can get back on the air until Elecraft sends you a replacement part. You don't need to send your radio to the factory to fix this! On 11/13/2010 7:56 PM, James Sarte wrote: Gene et all, I reheated the contacts on RFC4 to the point that I think I even slightly warped the casing of the choke on one side. No good. No continuity at all from any of the trace points or direct contact with the chokes leads. Looks like RFC4 is dead and K3 #2730 will have to go back to Aptos for repair. 73 de James K2QI On Sat, Nov 13, 2010 at 10:02 PM, James Sartek2qi@gmail.com wrote: On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorffk6...@sbcglobal.netwrote: I had the same symptom on my year old newly completed K3 kit a few months ago (S/N 3172). With Gary's guidance found the trouble to be one of the surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the board needed resoldering. Check for continuity with your ohmmeter and you will probably find one of them not connected. Carefully resolder each end while applying downward pressure, one end at a time, and it should work. Gene K6TTM -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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] soldering station - desoldering gun
On the other hand, my desoldering gun is from Goot. I don't feel Chinese made desoldering gun is good. I think Chinese made soldering stations are ok and they are widely used in radio repair shops in Hong Kong. Regrettably, I still can't find a Chinese made desoldering gun up to my satisfaction. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Johnny Siu vr2...@yahoo.com.hk 收件人﹕ Paul Christensen w...@arrl.net; elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 11:13:44 AM 主題： soldering station Oh yes, my Aoyue only costs me US$20 in Hong Kong. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Paul Christensen w...@arrl.net 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 11:10:56 AM 主題： Re: [Elecraft] Re： soldering station The Aoyue, CSI, and Hakko should use interchangeable tips and heaters. The Aoyue 937/937+ appears identical to the Circuit Specialist (CSI) and essentially the same has the Hakko 936/937. Analog Aoyue/CSI sells for about USD $40. Digital about $5 more. I think if I was going to pay Hakko's price, I would lean toward the Weller WES51 at USD $95. Paul, W9AC - Original Message - From: James Sarte k2qi@gmail.com To: d...@w3fpr.com Cc: elecraft@mailman.qth.net Sent: Saturday, November 13, 2010 9:54 PM Subject: Re: [Elecraft] Re： soldering station I use an Aoyue 937+ which I bought for around 50 dollars. Has lots of tip choices. I believe the Hakko tips will fit also. This soldering station's temperature is digitally controlled and the tip is ESD protected. 73, James K2QI On Sat, Nov 13, 2010 at 9:44 PM, Don Wilhelm w3...@embarqmail.com wrote: Perhaps this is the soldering station being sold by Circuit Specialists that looks like a Hakko 936 knockoff. I buy quality tools, and do not fool with less expensive imitations. In my experience, that has been a good decision. The times I have tried inexpensive substitutes, there has always been some sort of disappointment - like finding parts at a later date, or cheap tools that break and cause injury (the best example is inexpensive mechanics wrenches). When I am in the market for tools, I will choose quality and proven reliability over price - low quality tools can be dangerous in my experience. While cost is still a consideration, if one is to have these tools for years, quality and a reliable source of replacement parts should be a major factor. A Chinese knockoff that you must purchase tips from Japan to obtain similar performance does not sound like a good and long life alternative to me. 73, Don W3FPR On 11/13/2010 9:24 PM, Johnny Siu wrote: Hello Gentleman, I am using a 'Chinese version' of Hakko 936 which is 1/4 of the price. The trick is to replace the original soldering tip with the same from 'Goot' - made in Japan. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Don Wilhelmw3...@embarqmail.com 收件人﹕ riese-k3...@juno.com 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2010/11/14 (日) 10:18:21 AM 主題： Re: [Elecraft] soldering station Bob, The Hakko 936 gets very high marks with most of those who have one, but there are others that are also good. 73, Don W3FPR On 11/13/2010 8:48 PM, riese-k3...@juno.com wrote: Gang last week there was a thread on soldering stations,, before I ordered one I lost a week of e mail... I dont want to start the thread again but could someone off list give me a head up on the recommended station I believe it had an isolated tip etc Bob K3DJC __ 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 -- 73 de James K2QI President UNARC/4U1UN __ 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] K3: Right paddle key not working?
I suppose you're right Vic. I've just never been too confident in my soldering skills when it comes to small surface-mount parts like this choke. Like I said earlier, my iron slipped and I even managed to slightly warp the plastic casing on the choke. Ugh. When it comes to larger, thru-hole stuff then it isn't a problem. If I bypass the choke, what's the worst that could happen? Anyway, I'm still thinking about sending it back... Aptos agreed to swap out the filter and mic encoders for the newer, less-viscous feeling versions after my original encoders went kaput and they sent me an FP board with these stiff ones. So either way, I'd be out of a K3 for a few days. I could kill two birds with one stone and also have them do a complete check to make sure everything else is working before sending it back. I wouldn't be completely dead in the water anyway. I have an Icom 756 Pro III that I could use in the meantime. Tnx, James K2QI On Sun, Nov 14, 2010 at 12:29 AM, Vic K2VCO v...@rakefet.com wrote: If you could get to it to reheat the terminals, you can replace it. And, as the previous poster indicated, it's just an RF filter for the paddle. Chances are you can short it out and you won't have a problem. You can get back on the air until Elecraft sends you a replacement part. You don't need to send your radio to the factory to fix this! -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ -- 73 de James K2QI President UNARC/4U1UN __ 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
