[Elecraft] Building an older K2
Hello all, It's been years since I did any serious kit building, and I've been looking for a good winter project for a while now. So, when I found an unbuilt K2, KPA100, and KAT100-1 as part of an estate sale, I jumped on it. Are there any potential pitfalls I should be aware of, or is there anything I should be concerned about when assembling a 15-year old kit? All the boxes have 2002 purchase dates noted on them. The K2 is SN 3172, so I know it has the Rev "B" RF board. Thanks & 73, Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 w/ straight key
Hi Jim, I don't know that you would have to turn off the keyer, per se. Just plug in the straight key to the key jack and leave your paddles plugged in to the paddle jack. Then, either would work. 73 Joe, N1QD On Wed, Jun 24, 2015 at 11:54 AM, Jim Hoge knowk...@verizon.net wrote: I have always used my K3 with paddles but today wanted to play with a straight key and a sideswiper. For the life of me, I cannot find out how to turn the keyer off in the manual. The closest I thought I had come was VOX/PTT and I have also scanned through the config and menu to no avail. Perhaps it is just sleep deprivation preventing me from this but please how do I do this? Tnx es 73,Jim W5QM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to joseph.a.har...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] TS-990
-your-horsepower Porsche eats your lunch. Conversely, the Porshe will lose in the straightaway to the Corvette. Suspension, gearing, steering, track type, race format - etc. are are equivalent in importance to horsepower. So, If you want to talk about what the best contesting rig is, then I think you have to consider radios in a more multidimensional manner than by just comparing the equivalent of horsepower. Of which, Flex clearly seems to win. -Michelle W5NYV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to joseph.a.har...@gmail.com -- Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Another K3-SignaLink question
Ed, See page 20 of the K3 manual, in the Line Out setting. You can set the Line Out level in Config, or it can be set to =PHONES, which is what it sounds like you have it set to. 73, Joe, N1QD On Thu, Mar 27, 2014 at 3:09 PM, Edward F. Steinfeld edw...@go-embedded.com wrote: I have just connected my SignaLink to the K3 using SignaLink supplied K3 cables. I find the Line Out amplitude varies according to where I have the AF control set. I would have thought that Line Out was a constant signal level. Without setting the AF level quite high I do not get good PSK reception. At those levels it is too loud for my ham shack (and my wife). What I have I set wrong? Ed -- KB1ZJK Edward F. Steinfeld 25 Arbor Glen Drive Stow, MA 01775-1258 Home: (978)897-3127 Cell: (978)376-3146 mailto::edw...@go-embedded.com http://www.go-embedded.com http://www.go-embedded.com/ http://en.wikipedia.org/wiki/Mount_Steinfeld __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to joseph.a.har...@gmail.com -- Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: KPA100 Squeal
I just listened to Geoff's recording, and this is exactly what is happening with my K3/100. On Fri, Jul 1, 2011 at 1:49 AM, Geoff Wolf AB3LS liltechdud...@gmail.comwrote: No go. Hooked the radio up to a gel cel battery and we're still getting the 12Khz junk coming from something and the clicking between TX and RX. I made a longer recording of the 'junk' and posted it. Cycled between TX and RX a few times using the manual TX button on the front. Then finished off with a few dits and dahs. All while in TX Test mode. http://alien.liltechdude.com/files/index.php?dir=Recordings/file=kpa3squealrev2.mp3 Anyone from Elecraft have anything on this? AB3LS On Fri, Jul 1, 2011 at 1:24 AM, Geoff Wolf AB3LS liltechdud...@gmail.com wrote: This is a brand new K3 that I assembled about a month ago. The Serial Number is 5517. I have been using an Astron SS-25A power supply with this which is indeed a switcher. I have a battery that I'll be hooking up to it to see if this is still a problem. On Thu, Jun 30, 2011 at 4:41 PM, Guy Olinger K2AV olin...@bellsouth.net wrote: A repeated 12 kHz would be echoed all over the room and lose a lot of it's pulse nature. This continues to look suspiciously like crap from a 12 volt switching power supply that is somehow finding something mechanically resonant in the K3. Back to asking for 12 volts from a linear supply (transformer and 60 Hz rectifiers) or battery. Is this particular K3 serial # prior to the introduction of gold plated pins for the KPAIO3 connection? 73, Guy. On Thu, Jun 30, 2011 at 1:52 PM, W5UXH chuck.broadw...@gmail.com wrote: I looked at the MP3 file using Goldwave. It appears to me that the 12 KHz component is present only during the tics, not continuously. The tic period is roughly 270 msec (I have no idea what the tic is of course). I zoomed in to a single tic (see PDF of images at the link below). It appears that each tic has a very distinct pattern seen in the individual samples which I suspect is the 12 KHz energy. I have no idea what any of this means. 73, Chuck, W5UXH Las Cruces, NM https://sites.google.com/site/k3lineoutrecordings/ab3ls-mp3-file-analysis Images and comments from Goldwave view of the MP3 file Guy, K2AV wrote: Hi Geoff, below... On Thu, Jun 30, 2011 at 9:24 AM, Geoff Wolf AB3LS lt;liltechdud...@gmail.comgt; wrote: And, for even more information, I analyzed the audio that I recorded and the squeal is right around 12Khz. It peaks at -48dB (louder than the QSK relay clicking) http://imgur.com/V8o5t - image of the analysis AB3LS With your image I realize I had been making some assumptions. I need to fill in some details... Are you listening to the audio in earphones or are you hearing it in the free air. I had been assuming listening with your ears only in free air to miscellaneous sound in the neighborhood of the K3. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA100-Squeal-tp6518460p6534295.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 __ Elecraft mailing list Home: http://mailman.qth.net/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 -- Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/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: KPA100 Squeal
I have very similar symptoms in my K3/100 (SN 5284) that I assembled in March. It makes the sound even if I am in TX test mode. Again, no performance issues, just a slightly bothersome squeal / whine. On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolf liltechdud...@gmail.comwrote: First off it was a great Field Day and my new K3 impressed me extremely not only in performance but in it's functionality. To kick off Field Day I installed a new KPA100 into the K3. I did all the necessary TX gain calibrations using a dummy load. One thing I noticed immediately was that I was hearing a very high pitched squeal coming from either the PA board or possibly the KIO3 (the board the amp plugs into). The squeal seems to vary in frequency each time the transmitter keys up (can only hear it when the radio is in TX). The squeal is not very loud but its loud enough for me to hear it if I listen closely. It doesn't seem to be power related. The squeal is there even if the radio is in TX but no power going out (RF Pwr set to 0W). The closest thing I can compare the sound to is perhaps a tiny leak in an air hose. Is this typical of a bad solder joint or something? This squeal only pertains to the new KPA100 installation. Before the amp was installed I didn't hear a thing. I should also note that nothing appears to be affecting performance. Puts out 100 watts no problem. Clean modulation, etc. -- Geoffrey Wolf AB3LS (Amateur Radio Callsign) University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/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: KPA100 Squeal
Do the fans turn on when the K3 is in TX test mode? On Mon, Jun 27, 2011 at 10:21 AM, Guy Olinger K2AV olin...@bellsouth.netwrote: Check to make sure that the cables routed in front of the fans are not touching. A light touch will result in a sound like that. It will change or go away with the fan speed. 73, Guy. On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei e.adi.and...@gmail.com wrote: I have the same thing happening, similar series K3 (5k something) , also assembled in March. Adi 2E0TTX On 27/06/2011 13:38, Joe Harris wrote: I have very similar symptoms in my K3/100 (SN 5284) that I assembled in March. It makes the sound even if I am in TX test mode. Again, no performance issues, just a slightly bothersome squeal / whine. On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolfliltechdud...@gmail.com wrote: First off it was a great Field Day and my new K3 impressed me extremely not only in performance but in it's functionality. To kick off Field Day I installed a new KPA100 into the K3. I did all the necessary TX gain calibrations using a dummy load. One thing I noticed immediately was that I was hearing a very high pitched squeal coming from either the PA board or possibly the KIO3 (the board the amp plugs into). The squeal seems to vary in frequency each time the transmitter keys up (can only hear it when the radio is in TX). The squeal is not very loud but its loud enough for me to hear it if I listen closely. It doesn't seem to be power related. The squeal is there even if the radio is in TX but no power going out (RF Pwr set to 0W). The closest thing I can compare the sound to is perhaps a tiny leak in an air hose. Is this typical of a bad solder joint or something? This squeal only pertains to the new KPA100 installation. Before the amp was installed I didn't hear a thing. I should also note that nothing appears to be affecting performance. Puts out 100 watts no problem. Clean modulation, etc. -- Geoffrey Wolf AB3LS (Amateur Radio Callsign) University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/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 -- Joe Harris, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/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] Slight tx noise?
Hello, I have had a K3/100 for a few months and I'm loving it. My question concerns a barely audible, very high-pitched whine coming from the rig on transmit. Actually, it still happens when I'm in TX test mode. I don't believe it is the fans. I searched the reflector archives and didn't see anyone else mentioning it. Is this the norm, or am I blessed with a unique feature? 73, Joe, N1QD __ Elecraft mailing list Home: http://mailman.qth.net/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
