[Elecraft] RS-232 communication failure KPA100
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then tried to find the 16293 kHz signal on my SW receiver but couldn´t hear it. I however find -75 V at the end of the diode chain.so is the HV xtal oscillator at fault or not? Any suggestion on what to do next is much appreciated! Thanks, 73, Per SM0WRA . K2 no 1623, K1, KX1 -- View this message in context: http://www.nabble.com/RS-232-communication-failure-KPA100-tp15560370p15560370.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RS-232 failure KPA100
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then tried to find the 16293 kHz signal on my SW receiver but couldn´t hear it. I however find -75 V at the end of the diode chain.so is the HV xtal oscillator at foult or not? Any suggestion on what to do next is much appreciated! Thanks, 73, Per SM0WRA . K2 no 1623, K1, KX1 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RS-232 communication failure KPA100
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then tried to find the 16293 kHz signal on my SW receiver but couldn´t hear it. I however find -75 V at the end of the diode chain.so is the HV xtal oscillator at fault or not? Any suggestion on what to do next is much appreciated! Thanks, 73, Per SM0WRA . K2 no 1623, K1, KX1 -- View this message in context: http://www.nabble.com/RS-232-communication-failure-KPA100-tp15560371p15560371.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RS-232 communication failure KPA100
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then tried to find the 16293 kHz signal on my SW receiver but couldn´t hear it. I however find -75 V at the end of the diode chain.so is the HV xtal oscillator at fault or not? Any suggestion on what to do next is much appreciated! Thanks, 73, Per SM0WRA . K2 no 1623, K1, KX1 -- View this message in context: http://www.nabble.com/RS-232-communication-failure-KPA100-tp15560369p15560369.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RS-232 communication failure KPA100
In a recent message, Per Enocson [EMAIL PROTECTED] wrote ... My PC to KPA100 communication suddenly failed. Checked the cabling and did It looks very much as though the problem is with your computer, Per. Your message to the Reflector was send no fewer than five times. Hope you manage to solve the problem. 73 -- David G4DMP Leeds, England, UK -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KBPF3
When I ordered my K3 and accessories I did not order the KBPF3 because I thot that was to add general coverage receive Now, I am thinking it is a bandpass filter to filter OUT non-ham band signals. That I need, so another order if my latter idea is correct. What is the function of the KBPF3? Do u need one for both main and sub receivers?73Charles [EMAIL PROTECTED] From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: [Elecraft] Filter question Date: Mon, 18 Feb 2008 15:04:44 -0800 CC: elecraft@mailman.qth.net Does the KBPF3 go into the RX module or the main board module? Ie do you need two if you have the dual receivers? You probably wouldn't need dual RX out of band but just a wonder I guess the band passes would have to be on the RX modules or you wouldn't be able to get the two RX modules onto frequencies on two separate bands True? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Bayern Sent: Monday, February 18, 2008 1:55 PM To: Bill Kimura Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Filter question From the K3 FAQs (see http://www.elecraft.com/K3/K3FAQ.htm) Q: I'm still not clear on the general-coverage (GC) receive option -- if it is indeed optional or available by default in a minimally configured radio. The basic radio, as well as the subreceiver, has a full array of ham-band-only filters at the front end. This is to ensure excellent performance in the ham bands. These filters are switched in by means of relays. The KBPF3 option is a small plug-in module that sits above the ham-band filters. It, too, has a number of filters switched in by relays. The difference is that these are wider filters, covering all of the area between the ham bands. But they share the same input/output path as the ham-band filters. When not selected, the GC filters have absolutely no effect on performance, thanks to a very careful layout that minimizes trace lengths. When you tune the radio well outside the ham bands, an appropriate GC filter is automatically selected by firmware. Hopes this helps -- at least with your KBPF3 question. Mark AD5SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KBPF3
Hi Charles, When I ordered my K3 and accessories I did not order the KBPF3 because I thot that was to add general coverage receive Correct. Now, I am thinking it is a bandpass filter to filter OUT non-ham band signals. No. It is a filter to allow non-ham frequencies. What is the function of the KBPF3? Take a look at: http://www.elecraft.com/K3/K3FAQ.htm#KBPF3 How is the KBPF3 bandpass filter used... http://www.elecraft.com/K3/K3FAQ.htm#Subreceiver I'm still not clear on the general-coverage (GC) receive option... http://www.nabble.com/The-KBPF3-is-not-a-roofing-filterit%27s-an-RF-band-pass-filter-module-to13820837.html#a13820837 The KBPF3 is not a roofing filter... http://www.nabble.com/KBPF3-frequency-range-to14085227.html#a14085228 KBPF3 frequency range... http://www.nabble.com/Ham-bands-vs-GC-receive-to14075801.html#a14075839 Ham bands vs GC receive... etc. etc. etc. Do u need one for both main and sub receivers? If you want good sensitivity outside of the ham bands on both receivers, yes. If you want good sensitivity outside of the ham bands on one RX, you only need one KBPF3. If you are only want good sensitivity within the Ham bands, you do not need the KBPF3. vy 73 de toby ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Repeated receotion of postings.
During the past 36 hours or so I have been receiving several repeats of some postings to this List. Some arrive at approximately one minute intervals, with others the interval between repeats can be several hours. Has anybody else noticed this? 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Firmware Update (MCU 1.68, DSP 1.53)
Brett Howard said: Poof! As much as K3 owners have been having fun with the new Elecraft invented mode of CW to RTTY now there is yet another new mode in amateur radio! CW-to-RTTY isn't new - the AEA MBA-RC was able to convert CW to Baudot ASCII RTTY vice versa. Not sure, there may have been another box that could do some of this, too. Was quite cool to use, especially given the alternatives to work digital modes at the time. Pleased to see how with the relative ease of working them now that a Morse interface is still of interest. Maybe we'll see that Morse UI PDA yet? http://marc.info/?l=elecraftm=111600319308527w=2 73 HLNY, VR2BrettGraham. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Repeated receotion of postings.
Yes, it *usually* happens on weekends, but not exclusively. David G3UNA From: Geoffrey Mackenzie-Kennedy [EMAIL PROTECTED] Date: 2008/02/19 Tue AM 11:53:24 GMT To: Elecraft Discussion List elecraft@mailman.qth.net Subject: [Elecraft] Repeated receotion of postings. During the past 36 hours or so I have been receiving several repeats of some postings to this List. Some arrive at approximately one minute intervals, with others the interval between repeats can be several hours. Has anybody else noticed this? 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WA3WSK Bead-wire antenna questions
I am not one of those hearty souls that participates in FYBO, but spring is just around the corner and my cabin fever thoughts are drifting to visions of portable operations with my KX-1 (40, 30, 15 m with internal ATU). Over the past couple of years I have used a variety of antennas. Everything has worked, but I'm still searching for the holy grail that will maximize portability, convenience, and performance. I recently came across the WA3WSJ Bead-Wire antenna and would like to hear from anyone that has tried variations of this antenna. Some of my specific questions are. What is this wire like to work with? Strong? Light? Does it kink or tangle easily? What are the different radiator lengths that people have tried? WA3WSJ uses 3 equal-length counterpoise wires. Has anyone tried counterpoise lengths cut to specific bands? Any other comments or ideas? Thanks in advance for your help. 73 Paul - N8XMS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RS-232 Apple scripts
I'm new to programing and was thinking about making some kind of script to send the TX and RX comands to the K2. Any Mac users out there with input? - Damon Wascom KC5CQW Elecraft K2 #:6351 Build: 12/28/07-01/01/08 -- View this message in context: http://www.nabble.com/RS-232-Apple-scripts-tp15560562p15560562.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] new solder answers
Answer to new solder is yes, it looks like that. Yes, u need a hotter iron. Yes, stay with old style solder. BIG thanks to all. 73Charles [EMAIL PROTECTED] Date: Mon, 18 Feb 2008 17:38:16 -0500 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] new solder Charles, I have tried some of that no-lead solder and found the same thing as you. It requires a higher soldering iron temperature and does not conduct heat through itself very well. It is doubly difficult to de-solder a thru-plated hole that has been soldered with that stuff. Unless you have some really binding restrictions where you live, I suggest that you stick with the regular leaded solder for electronic work and leave the no-lead solders to the manufacturers. It does work better with SMD components than with thru-plated hole construction. 73, Don W3FPR Charles Harpole wrote: I have some of the new solder with the non-toxic flux and no lead. I get what looks like cold joints regardless of the heat applied many tries, same result. Anyone else get the same? 73Charles Harpole___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New: K3 tops the list
Easy enough to solve. Just send your radio in for a retest. To arbitrarily dismiss this test as non-representative smacks of a troll. No it doesn't. This is exactly the reason why the ARRL buys a rig and doesn't accept product from manufacturers to test. 73 K5LDB -- Support the entire Constitution, not just the parts you like. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 Serial Number 414 Completed
Hello Dave! Good to hear your build is going smoothly. To answer your specific questions: ...the standoffs on the RF board: Wouldn't it be better to mount all of the standoffs on the RF board right at the start? If I'm missing something here, please fill me in. Three of the four standoffs are secured by screws that also hold the rear shield that encloses the KPA3. It would be very difficult to install many of the part on the top of the RF board with that shield in place so it and the standoffs the shield mounting screws also hold are installed near the end of the build. It seemed to make sense to install the fourth standoff with the others to ensure it wasn't overlooked. Was there any difficulty reaching the necessary parts to do that? We've not had any reports of problems so far. The Chassis Stiffener gets installed and then removed if your installing the KPA3. It seems like you could make the decision to install it or not based on if you have the KPA3 option rather than remove it if you're going to install the KPA3. I guess you would have to make a note on the speaker grill cloth positioning but I would rather do that than take out the top cover screws an additional time. You identified the issue there: ensuring the speaker grill cloth won't get caught between the stiffener bar and the top cover when the cover is installed. It seemed the most straightforward way was to mount the bar on the top cover temporarily while the speaker is being fitted to ensure the cloth is trimmed properly. It really doesn't matter whether the KPA3 is installed. Wayne has asked that the stiffener be left in place when the top cover is removed, so the grill cloth must be trimmed to avoid any interference. You'll find all the installation procedures for options that require opening the top cover say to remove the cover leaving the stiffener in place. If you use a Phillips screwdriver that fits the screw snugly, you should not have any problem scratching the screw heads. The screws must be snug, but don't over-tighten them! You should never approach a level of torque that would cause a properly-fitting screwdriver to slip out. One great tip in the manual deals with attaching the front panel assembly to the RF board. Make a note of the screw in the 2D fastener that can block installation when the DSP board hits it. PAGE 37. I'd suggest removing it before attempting to mate the front panel with the FOUR connectors. Not all the DSP boards strike that screw. It's very, very close! So we didn't want to ask builders to pull it out unless it's in the way. Also, when you think you have it properly installed, check it at least three times to make sure all pins are properly inserted. Yes, it's important to actually SEE those connectors to ensure they are aligned, as shown in Figs 50 and 51. That's why, after much discussion, Wayne ordered the side panels removed so you can see more clearly inside to ensure they align the first time. Actually, once the system has been mated, ensuring the connectors are all aligned, removing and remounting the front panel is a lot easier although we go to great lengths to avoid your having to do that in the future. On Calibration of the Reference Oscillator - I found that I had to readjust the audio level of WWV and the Monitor level several times before I think I got it right. Also, it would seem to me that if the calibration is done correctly, you should be able to hear the undistorted audio annoucement from WWV at the top of each minute. It should be nice and clear. Someone correct me if I'm off base here. Yes, when zero beating the two tones in CW mode, it's necessary to have them at the SAME audio level to hear the beat clearly. You didn't hear the announcement clearly because you were still in CW mode. Switch to SSB or AM mode and you should hear the announcement fine. Some builders who have trouble hearing the beat do the reference oscillator calibration in SSB mode, switching between sidebands while listening until the tones and voice announcements sound the same on either sideband. I hope this clears up your questions and that you got the rig going FB. One cardinal rule is to not work when you're tired. It's too easy to skip or misread a step. As many builders have noted: measure twice, cut once applies here! Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Mojo
The Elecraft Mojo continues. I worked Ducie Island, VP6DX on 17 meters SSB running 10 watts to a G5RV antenna. Ken K1DWZ -- View this message in context: http://www.nabble.com/K3-Mojo-tp15560876p15560876.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] KBPF3 answer
Great advice response and vy clear Answer is no the KBPF3 does not help the ham bands. So, it is not a band pass filter in the usual sense of an ICE 419 which rejects sigs outside one ham band (switchable). BIG thanks 73Charles [EMAIL PROTECTED] Date: Tue, 19 Feb 2008 11:26:02 +0100 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] CC: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]; elecraft@mailman.qth.net Subject: Re: [Elecraft] KBPF3 Hi Charles, When I ordered my K3 and accessories I did not order the KBPF3 because I thot that was to add general coverage receive Correct. Now, I am thinking it is a bandpass filter to filter OUT non-ham band signals. No. It is a filter to allow non-ham frequencies.What is the function of the KBPF3? Take a look at: http://www.elecraft.com/K3/K3FAQ.htm#KBPF3 How is the KBPF3 bandpass filter used... http://www.elecraft.com/K3/K3FAQ.htm#Subreceiver I'm still not clear on the general-coverage (GC) receive option... http://www.nabble.com/The-KBPF3-is-not-a-roofing-filterit%27s-an-RF-band-pass-filter-module-to13820837.html#a13820837 The KBPF3 is not a roofing filter... http://www.nabble.com/KBPF3-frequency-range-to14085227.html#a14085228 KBPF3 frequency range... http://www.nabble.com/Ham-bands-vs-GC-receive-to14075801.html#a14075839 Ham bands vs GC receive... etc. etc. etc.Do u need one for both main and sub receivers? If you want good sensitivity outside of the ham bands on both receivers, yes. If you want good sensitivity outside of the ham bands on one RX, you only need one KBPF3. If you are only want good sensitivity within the Ham bands, you do not need the KBPF3. vy 73 de toby ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Filter question
On Mon, 18 Feb 2008 15:18:45 -0800 (PST), you wrote: Ultimately, the 15 khz FM filter would be the best choice for roofing AM and FM (on receive). I have ordered the FM filter for use in AM BC reception. But now I am reconsidering since someone has said that AM BC sounds so good with one sideband through the 6 khz filter. I wonder if the performance benefits of the narrower filter will outweigh the better fidelity of the wide filter. Oh, well, still have a couple of months to decide... 73, Drew AF2Z ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Best way to secure RF ground from 2nd floor?
On Mon, 18 Feb 2008 20:44:55 -0800, Ron AC7AC wrote: Another approach for an RF ground is to use your connection to the ground rod, but tune out the reactance. MFJ made a small tuner for just that purpose: a coil and capacitor in series that one adjusted as needed to produce maximum ground current at the rig. That can be very effective, but it is frequency-sensitive: it requires readjustment for every band. And, because the circuit involves a capacitor in series with the coil, it is not a d-c ground if that's what you are looking for. But it can produce a good RF ground. Ron AC7AC An automatic ground tuner might be nice-- a GTU, i guess you would call it. 73, Drew AF2Z ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Tops the List
how about a youtube video recording..! that might be one of the first GOOD uses of youtube... bill At 12:28 AM 2/19/2008, David Cutter wrote: It would be good for the wider amateur community if someone could make a recording of that. David G3UNA Good news indeed about the K3 being at the head of the performance list - Congrats to the Elecraft folks! Thought I would mention that Rob Sherwood will be giving a talk tomorrow (Tuesday) nite at the Boulder Amateur Radio Club. The subject is Measuring Receiver Performance and DSP. I don't know how much, if any, of his time will be spent raving about the K3 he measured, but I for one will be there to find out. If you are in NE Colorado, you might want to consider attending. 7 PM. For info go to www.qsl.net/W0DK. 73 ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Repeated receotion of postings.
Alan [EMAIL PROTECTED] wrote: I have also noticed it in the last few days. is this a UK thing? Alan G8FMH K3 ?? still waiting but not long now Seemingly not I am told by people in the States and elsewhere. I have received a repeat before on the rare occasion, but this is the first time that I have received umpteen repeats of so many postings. Enjoy your K3! 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: Re: [Elecraft] Repeated receotion of postings.
I have had 200+ in my in box and as fast I clear them, they re-fill. To stop this re-filling I go to webmail and remove items from there. I've assumed it's an ISP issue. David G3UNA From: Geoffrey Mackenzie-Kennedy [EMAIL PROTECTED] Date: 2008/02/19 Tue PM 02:49:54 GMT To: [EMAIL PROTECTED] CC: Elecraft Discussion List elecraft@mailman.qth.net Subject: Re: [Elecraft] Repeated receotion of postings. Alan [EMAIL PROTECTED] wrote: I have also noticed it in the last few days. is this a UK thing? Alan G8FMH K3 ?? still waiting but not long now Seemingly not I am told by people in the States and elsewhere. I have received a repeat before on the rare occasion, but this is the first time that I have received umpteen repeats of so many postings. Enjoy your K3! 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K1 - Which Bands or KX1 That's the question
I chose the K1 because I thought it would make a better every day rig than the KX1 and I wanted a rig that I would use regularly and not something that I would build, test and put in a box. There was something about the form factor that I liked, and when I read the manuals, I thought the approach to building the K1 was better for a first time builder like me. I went with the 2 band model and chose 40 15 meters. I figured those two bands would be fine at either end of the sun spot cycle for both US and DX contacts and it makes the portable antenna selection pretty easy as a 40 meter dipole will work for both. I also liked the antenna tuner option in the K1, there may be times where I can't get a good dipole in the air and the K1 tuner is great. A local ham made a contact with a K1 on 40 meters while tuning up the lead of his DMM. I don't have the tuner yet, it is something I plan to add, but it might be a while since I just ordered a K3 :). 73 de Joseph Durnal NE3R On Feb 19, 2008 9:52 AM, Curron HILL [EMAIL PROTECTED] wrote: I am pondering buying or building a K1 or KX1 again. I am aware of the major differenece, There are a few things that lead me to the K1: Better filters, better autotuner and a few more watts out The two things that lead me to the KX1 are: SWL and 80 40 30 20 meters all in one small radio, if the K1 could do those two things it would be perfect. A couple questions for the group, 1. How easy is it to switch band modules on the K1. Say I build a 80 17 module and a 40 30 20 15. How easy is it to change between those out in the field? It it a 5 minute no alignement job, or a 45 tweek a little exchange? 2. If you were building the K1, which bands would you select if you could only have one board - The 80 and X band - What band would X be? - 40 30 20 would you select 15 or 17 and why - how important is 80 meters today? 3. For those who own or have owned both, could you make the same contacts with the KX1 as the K1? How much does difference does the 3 watts extra output in the K1 really make? I love camping, and hiking, but I also will have the radio sitting by my easy chair at home tied to the outside dipole. The size of the K1 does not bother me for hiking. I can carry that and my paddles in a case. I would mostly use it at a picnic table anyway. So can the KX1 do it all for me, or will I rather have the K1. Thanks for sharing your experience and knowledge, 73 de KB3DRW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Repeated receotion of postings.
Geoff: Yes.Yes.YesYes.et cetera 73, Steve Kercel AA4AK From: Geoffrey Mackenzie-Kennedy [EMAIL PROTECTED] Date: 2008/02/19 Tue AM 11:53:24 GMT To: Elecraft Discussion List elecraft@mailman.qth.net Subject: [Elecraft] Repeated receotion of postings. During the past 36 hours or so I have been receiving several repeats of some postings to this List. Some arrive at approximately one minute intervals, with others the interval between repeats can be several hours. Has anybody else noticed this? 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 - Which Bands or KX1 That's the question
I am pondering buying or building a K1 or KX1 again. I am aware of the major differenece, There are a few things that lead me to the K1: Better filters, better autotuner and a few more watts out The two things that lead me to the KX1 are: SWL and 80 40 30 20 meters all in one small radio, if the K1 could do those two things it would be perfect. A couple questions for the group, 1. How easy is it to switch band modules on the K1. Say I build a 80 17 module and a 40 30 20 15. How easy is it to change between those out in the field? It it a 5 minute no alignement job, or a 45 tweek a little exchange? 2. If you were building the K1, which bands would you select if you could only have one board - The 80 and X band - What band would X be? - 40 30 20 would you select 15 or 17 and why - how important is 80 meters today? 3. For those who own or have owned both, could you make the same contacts with the KX1 as the K1? How much does difference does the 3 watts extra output in the K1 really make? I love camping, and hiking, but I also will have the radio sitting by my easy chair at home tied to the outside dipole. The size of the K1 does not bother me for hiking. I can carry that and my paddles in a case. I would mostly use it at a picnic table anyway. So can the KX1 do it all for me, or will I rather have the K1. Thanks for sharing your experience and knowledge, 73 de KB3DRW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] New: K3 tops the list
Brett Howard wrote: To arbitrarily dismiss this test as non-representative smacks of a troll. No it doesn't. This is exactly the reason why the ARRL buys a rig and doesn't accept product from manufacturers to test. If anyone is in doubt, I suggest they wait another 5 years...especially if they are competing against me in contests. ;-) 73, Bill W4ZV -- View this message in context: http://www.nabble.com/New%3A-K3-tops-the-list-tp15549251p15561396.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RS-232 Apple scripts
Load the developer tools, I think there is a scripting tutorial - certainly you'll get the script editor 73 de M0XDF / K3 #174 | iMac 24, 2.8GHz, core 2 Intel On 19/02/2008 11:49, Damon - KC5CQW [EMAIL PROTECTED] sent: I'm new to programing and was thinking about making some kind of script to send the TX and RX comands to the K2. Any Mac users out there with input? - Damon Wascom KC5CQW Elecraft K2 #:6351 Build: 12/28/07-01/01/08 -- Mathematics is the language with which God has written the universe. -Galileo Galilei, physicist and astronomer (1564-1642) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Filter question
There'll be times that we'll want to listen to AM on only one sideband or the other to get rid of interference on the other side, but no matter how good it may sound that way, I still want the synchronous detector and DSP wide enough to benefit from the 12 KHz filter when conditions allow. I enjoyed that on my 746Pro too much to be happy with narrow AM broadcast. I'd sure hate to go back to an Icom just to have better AM receive. So I'm waiting to see what the good guys can do. Dave W5DHM I have ordered the FM filter for use in AM BC reception. But now I am reconsidering since someone has said that AM BC sounds so good with one sideband through the 6 khz filter. I wonder if the performance benefits of the narrower filter will outweigh the better fidelity of the wide filter. Oh, well, still have a couple of months to decide... 73, Drew AF2Z ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 FINISHED
After weeding thru a few problems my K2 is up and running good. So far I have not added any extra modules and the basic K2 is doing fine with on the air QSOs. I will share my problems to maybe help some one keep from making same mistakes. Don W3FPR was VERY helpful guiding me thru my problems. I put C6 RF board in the wrong place. The book says 2 outside terminals so I put it in the 2 closest to the outside of the case.. WRONG. Then I lost the BFO because the 5 meg resistor across the coil was shorting it out. Guess I pushed too hard on the tape I put over it. I also installed T4 backwards which gave too much current drawn on Tx. Now I'm building my extra modules and taking a break to have some fun on the air with the K2. Great kit...fun to build...and good rig when done. 73 Rich WB4VFN ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3: How many amps does it draw?
Uh, I give up, how many? I'm guessing 3 amps or less. Does your PS have an meter on it? Can your DMM measure current? I'd like to know too, but I don't have any concerns since I'll be running my K3/10 from my Astron 20 amp supply. - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 - -Original Message- On Behalf Of DOUGLAS ZWIEBEL I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Here is what the specs quote: Supply Voltage/current: 13.8 V nominal (11 V min, 15 V max). 17-22 Amps typical in TX (100W). 0.9A minimum RX. Now at 5 watts...I dunno. One of the ways you can find out is...of course...put an amp meter in line with the rig. If you don't have one, cobble one together with a known meter movement...and .1 ohm resistor and the appropriate multiplier resistor. That should do the trick of getting the data you want. Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Harbor Freight stores have a good little DMM for $4. On sale they are $2. Yes, they work. Jerry W4UK At 11:41 AM 2/19/2008, Lee Buller wrote: Here is what the specs quote: Supply Voltage/current: 13.8 V nominal (11 V min, 15 V max). 17-22 Amps typical in TX (100W). 0.9A minimum RX. Now at 5 watts...I dunno. One of the ways you can find out is...of course...put an amp meter in line with the rig. If you don't have one, cobble one together with a known meter movement...and .1 ohm resistor and the appropriate multiplier resistor. That should do the trick of getting the data you want. Lee - K0WA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Mojo
I also worked them on 30m and 20m with a QRP K2 into a Cobra Ultralite antenna. ( www.k1jek.com ). The bands were not in great shape either. There was a stuck paddle on 7002.0 all night last night. John W2XS K1DWZ wrote: The Elecraft Mojo continues. I worked Ducie Island, VP6DX on 17 meters SSB running 10 watts to a G5RV antenna. Ken K1DWZ -- View this message in context: http://www.nabble.com/K3-Mojo-tp15560876p15562353.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Thanks Dick. My error...poorly worded. By small, I mean AMPS, not physical size. Sorry! de Doug KR2Q On 2/19/08, Dick Dievendorff [EMAIL PROTECTED] wrote: This isn't a direct answer to your question, Doug, but if you're looking for a physically small supply, consider the Gamma Research HPS-1a. It has enough current capability for 100-watt transceivers using intermittent duty cycle modes (SSB CW). It is about the size of a thick pocket book and weighs just over a pound. http://www.gammaresearch.net/hps-1a.html 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of DOUGLAS ZWIEBEL Sent: Tuesday, February 19, 2008 7:59 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: How many amps does it draw? Hi all: Wondering if anybody has measured this... I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. Thanks, de Doug KR2Q PS: I already have a 35 amp supply which I'm currently (no pun) using, but it overkill when I run qrp. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Repeated receotion of postings.
In a message dated 19/02/2008 12:41:36 GMT Standard Time, [EMAIL PROTECTED] writes: Yes, it *usually* happens on weekends, but not exclusively. David G3UNA From: Geoffrey Mackenzie-Kennedy [EMAIL PROTECTED] Date: 2008/02/19 Tue AM 11:53:24 GMT To: Elecraft Discussion List elecraft@mailman.qth.net Subject: [Elecraft] Repeated receotion of postings. During the past 36 hours or so I have been receiving several repeats of some postings to this List. Some arrive at approximately one minute intervals, with others the interval between repeats can be several hours. Has anybody else noticed this? 73, Geoff GM4ESD I have also noticed it in the last few days. is this a UK thing? Alan G8FMH K3 ?? still waiting but not long now ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New: K3 tops the list
No review will be representative of all K3s. I think Dave's line above says it all. No one review will ever capture the true performance of all transceivers. This is a significant hang-up area with many operators. Often, we'll read a QST or RadCom product review and make the quantum-leap assumption that one parameter will remain the same across an entire production run of transceivers. TX IMD specs come to mind here. For example, depending on a bias setting, the real IMD performance can very substantially with most SSB transceivers. If Elecraft's final alignment procedure is identical to that used by the casual end-user, does it matter whether or not the unit has been to Elecraft or Sherwood? I think the whole point of Elecraft's design team was to take the influential alignment variable out of the equation. I suspect if Wayne Eric were even the least bit concerned in this area that the kit version would not have been offered. Or, in the alternative, all kits would go back to Elecraft for final alignment. Paul, W9AC (K3 just days away from shipment) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] New: K3 tops the list
Guys It's not rocket science to measure the performance of a receiver... All you need are a few items of relatively common test gear, calibrated to national standards if possible. The test procedure is given in some detail on the ARRL web site. No review will be representative of all K3s, I've measured similar 3rd order dynamic range as do our German colleagues... That covers measurements on four different samples of a K3 - all can't be wrong. To put the K3 in perspective, in the March 2008 RSGB RadCom there is a review of the FT2000D by Peter Hart (G3SJX) which gives a 3rd order dynamic range of 67 dB at 2 KHz spacing... at least 30 dB worse than most K3 measurements. 73 Dave, G4AON K3/100 #80 -- Charlie, I am sorry to hear that Rob Sherwood's K3 test was performed on a rig that may or may not be representative off all K3's. It would have been best if Elecraft had not done any work on it or made any adjustments to it once it was built by you. Chances are what they did to it did not have any affect on its performance but we will never know. I hope you will like your #149 as much as I like my #148. John [K7SVV] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 #253 arrived
Hi guys. K3 #253, ordered May31st (w/deposit) has arrived in Ronkonkoma, NY. Assembly to start shortly!! 73 Ken WB2ART ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Doug Zwiebel, KR2Q, posed the following... Wondering if anybody has measured this... I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. Obviously, this is NOT the absolute answer to your query, but it's what I just measured on my (Field Test) K3, on 20M CW, into a known accurate 50 Ohm load with the ATU in BYPASS mode, using an in-line Fluke 187 DMM in the 10A position and the shortest 'test' clip-leads (about 4 each) I had available. K3 #0008 Mode Current (A) OFF 0.055 A (55 mA) RX 0.99 A (990 mA) 1W TX 2.56 A 5W TX 3.37 A 10W TX 3.95 A 12W TX 4.14 A (power setting just BEFORE KPA3 enabled) 13W TX 8.90 A (KPA3 just enabled) Given a small amount of resistive losses in the (alligator clip) connections to the DC leads, the DC voltage applied to the K3 (measured BY the K3) varied from 13.9VDC (RX), 13.7 VDC (1W TX), to 13.3VDC (13W TX). This may (or may NOT) be representative of all K3s... YMMV.. 73, Tom Hammond N0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3: How many amps does it draw?
This isn't a direct answer to your question, Doug, but if you're looking for a physically small supply, consider the Gamma Research HPS-1a. It has enough current capability for 100-watt transceivers using intermittent duty cycle modes (SSB CW). It is about the size of a thick pocket book and weighs just over a pound. http://www.gammaresearch.net/hps-1a.html 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of DOUGLAS ZWIEBEL Sent: Tuesday, February 19, 2008 7:59 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: How many amps does it draw? Hi all: Wondering if anybody has measured this... I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. Thanks, de Doug KR2Q PS: I already have a 35 amp supply which I'm currently (no pun) using, but it overkill when I run qrp. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: How many amps does it draw?
Hi all: Wondering if anybody has measured this... I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. Thanks, de Doug KR2Q PS: I already have a 35 amp supply which I'm currently (no pun) using, but it overkill when I run qrp. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Hi Tom I'm curious about one thing. In the K2 we can cut back on receive current by menu selections for things like FD on battery power. Is there any plan for such a capability in the K3? 73, Bob N6WG - Original Message - From: Tom Hammond [EMAIL PROTECTED] To: DOUGLAS ZWIEBEL [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, February 19, 2008 9:25 AM Subject: Re: [Elecraft] K3: How many amps does it draw? Doug Zwiebel, KR2Q, posed the following... Wondering if anybody has measured this... I have the K3 with the KPA3, but I run it almost all the time at 5 watts output (5.0 setting). What is the max amps that this configuration might draw, assuming a good SWR and a normal voltage (indoor) supply? I want to see how small (but safe) a power supply I can use. Obviously, this is NOT the absolute answer to your query, but it's what I just measured on my (Field Test) K3, on 20M CW, into a known accurate 50 Ohm load with the ATU in BYPASS mode, using an in-line Fluke 187 DMM in the 10A position and the shortest 'test' clip-leads (about 4 each) I had available. K3 #0008 Mode Current (A) OFF 0.055 A (55 mA) RX 0.99 A (990 mA) 1W TX 2.56 A 5W TX 3.37 A 10W TX 3.95 A 12W TX 4.14 A (power setting just BEFORE KPA3 enabled) 13W TX 8.90 A (KPA3 just enabled) Given a small amount of resistive losses in the (alligator clip) connections to the DC leads, the DC voltage applied to the K3 (measured BY the K3) varied from 13.9VDC (RX), 13.7 VDC (1W TX), to 13.3VDC (13W TX). This may (or may NOT) be representative of all K3s... YMMV.. 73, Tom Hammond N0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: Relays for antenna switching
Hello All, I planning to put up a 20m switchable vertical yagi made up of 4 vertical elements, with a relay control box to switch the elements to be either the driven element or the reflector elements. Preferable the relays should be DPDT, although I can use SPDT relays if they're cheap enough. - What relays should I use (any specific recommendations?) , or what characteristics should I look for in relays. The relay control box will be mounted on the antenna, so it has to operate over a very wide range of temperatures (below 0 to over 100 degrees), and be controlled via 12VDC. - What should the relay contact rating be to use with my K2 at 100 watts? - Will there be a significant amount of loss if I use power relays for RF applications (which seem to be the only ones in the catalogs that probably have a sufficient contact rating)? - Are the relays used in the KAT100 appropriate for external use (they would be in mounted a sealed box)... and does anyone know what the KAT100 relays are? (I expect the Elecraft would prefer that I order them from some othe rsource so that they're not a parts supplier for non-Elecraft projects). Thanks. Bob W1SRB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New: K3 tops the list
Paul - Actually, Wayne and Eric care quite a bit, as evidenced by their wanting the rig to be sent to them for checkout *AFTER* being told it was going to Rob for review. Also, recall that very nice Bavarian Contest Club review ( http://www.bavarian-contest-club.de/projects/K3_english.pdf ) wherein they mention Wayne, N6KR and chief designer of the K3, knew that we were working on this report, and asked me to give him a chance to see the report at an early stage, so that he could point out errors, fix anything which might be broken and make comments Lastly, I seem to recall something about Elecraft wanting the ARRL to measure a pre-production K3, to compare the League's measurements versus Elecraft's. (Am I making that up? It sure *seems* familiar.) It's not unreasonable for them to care, and I don't especially believe that they did anything above and beyond the published alignment procedure to especially enhance the performance...but we'll all feel more comfortable after we see a broader sampling of measurements from unrelated sources. How's that expression go? Trust, but verify Also not too many days away from my K3 being shipped... Steve NN4X On 2/19/08, Paul Christensen [EMAIL PROTECTED] wrote: No review will be representative of all K3s. I think Dave's line above says it all. No one review will ever capture the true performance of all transceivers. This is a significant hang-up area with many operators. Often, we'll read a QST or RadCom product review and make the quantum-leap assumption that one parameter will remain the same across an entire production run of transceivers. TX IMD specs come to mind here. For example, depending on a bias setting, the real IMD performance can very substantially with most SSB transceivers. If Elecraft's final alignment procedure is identical to that used by the casual end-user, does it matter whether or not the unit has been to Elecraft or Sherwood? I think the whole point of Elecraft's design team was to take the influential alignment variable out of the equation. I suspect if Wayne Eric were even the least bit concerned in this area that the kit version would not have been offered. Or, in the alternative, all kits would go back to Elecraft for final alignment. Paul, W9AC (K3 just days away from shipment) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] New: K3 tops the list
Sorry I brought this up. I never intended for this to be a flame thread or argumentative thread. My point is: ELECRAFT DID NOT SPECIAL TUNE MY RADIO! You finish the calibration and your radio should perform exactly the same. Others independently have verified Rob Sherwood's results. Instead of checking with me, as I indicated before, please verify this with Eric or Wayne. Then you will know too! 73, Charlie, W0YG.. -- View this message in context: http://www.nabble.com/New%3A-K3-tops-the-list-tp15549251p15562395.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 MOJO
just worked VP6DX on 17m QRP 10watts. K2 rules. those k3 have ears -- http://www.geocities.com/kc5wa 72/73 DE RC KC5WA Flying Pigs #567 NAQCC #420 NETX #43 SKCC #089 ARCI-QRP #12572 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Lisagram
Just heard from Lisa . My K3/100 kit ordered 19 June will be in my hands in a week or so. It's been so long (8 months) that I had almost forgotten about the order (sure!). I think that by June a K3 will be an in-stock item judging by the way they're coming off the assembly line. 73 Gord VE7YU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Lisagram In stock by June - really?
It is my forecast that delivery times will not be improved for long...quite the opposite. Once the rest of the ham world gets wind of the Sherwood (and presumably closely matching ARRL) data, the K3 orders will go through the roof (no pun intended). I would expect orders to start showing up on an order of magnitude of 10 or more real soon after this information hits the streets and is confirmed by famous Contesters and DXers...some of whom are taking delivery now. It won't take long for DX and Contest Clubs to disseminate this information to their membership. I would also expect the K3 base price to go up too (in other words...if you're still sitting on the fence, put it gear NOW). Sure hope the Aptos guys have a strong contingency plan for the deluge. de Doug KR2Q PS. Glad I got my 2nd one ordered this past November!!! Especially glad since I have played with #295 this past weekend. Can't get enough! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: How many amps does it draw?
Hi Bob: I'm curious about one thing. In the K2 we can cut back on receive current by menu selections for things like FD on battery power. Is there any plan for such a capability in the K3? 73, Bob N6WG I kinda doubt it. If I recall, we discussed this (among FTs) early on and it was decided that since the K3 was designed NOT as a 'portable' rig, and that given it's circuit architecture, it was not all that feasible to attempt to effect significant savings with regard to operating current. Wayne may want to elaborate, but this is how I recall the discussion going. 73, Tom ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Lisagram In stock by June - really?
Agreed. I placed my order last Aug to get a K3 after the initial production issues are solved but before the ARRL, Sherwood major DXers all get word out and create a huge wave of demand. Time will tell if my timing was right one or not. 73 all! - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 - -Original Message- From: DOUGLAS ZWIEBEL Once the rest of the ham world gets wind of the Sherwood (and presumably closely matching ARRL) data, the K3 orders will go through the roof (no pun intended). ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Lisagram In stock by June - really?
I should add that the performance of the radios/ops of the VP6DX operation will increase the interest/orders for the K3. Last night I worked VP6DX on 30m cw at 10113 and 30m RTTY at 10140 both on the band at the same time. Clearly no QRM problems! Doug W6JD -- Original message -- From: DOUGLAS ZWIEBEL [EMAIL PROTECTED] It is my forecast that delivery times will not be improved for long...quite the opposite. Once the rest of the ham world gets wind of the Sherwood (and presumably closely matching ARRL) data, the K3 orders will go through the roof (no pun intended). I would expect orders to start showing up on an order of magnitude of 10 or more real soon after this information hits the streets and is confirmed by famous Contesters and DXers...some of whom are taking delivery now. It won't take long for DX and Contest Clubs to disseminate this information to their membership. I would also expect the K3 base price to go up too (in other words...if you're still sitting on the fence, put it gear NOW). Sure hope the Aptos guys have a strong contingency plan for the deluge. de Doug KR2Q PS. Glad I got my 2nd one ordered this past November!!! Especially glad since I have played with #295 this past weekend. Can't get enough! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: Relays for antenna switching
Bob ... I recently built an outside switching box for another antenna project. Not switched verticals like you will have, but a way of switching a multiband doublet from doublet to tophat vertical operation. Also at 100W power level, so I'm guessing that the possible maximum voltage and currents in my application will be, if anything, greater than yours. I used a Potter Brumfield DPDT relay. Rated at 20A current. It has worked great. 12V coil. Mouser PN is 655-KUHP-11DT1-12. One reason I picked it is the mechanical package. It has a built-in mounting flange that you can simply screw to your chassis or to the inside of your enclosure. Then all the contact terminals are exposed and accessible for soldering. If I were doing your project I would use this one again. About $14 in small quantities. 73 ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 by June?
Greetings everyone, I just ordered my 1st HF radio the other day, (K3) and I was told that the expected ship date would be June. (4 months out) After reading numerous threads on this mailing list about people receiving their units 8, 9, 10 months after placing the order, it's hard to be optimistic that I'll actually see my unit in 4 months. Does anyone think that this is a realistic date, or will I most likely be waiting 8-10 months? Has Elecraft ramped up their production at all recently to be able to get these units out the door faster? Thanks, - Bill (KB1PXD) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] New: K3 tops the list
No it doesn't. This is exactly the reason why the ARRL buys a rig and doesn't accept product from manufacturers to test. Well, the K3 that ARRL is testing is a factory built radio. In all probability it will be identical in every way to the one that the factory aligned and Sherwood is testing (except that the first ARRL test radio will be a 10 watt version). When a given product is available only from the manufacturer there is no way that they will not get one identical to all of the other factory assembled and tested units. On the other hand, what's different about a factory aligned radio than the entry for the Icom 765 that says: m Receiver was optimized by Malcom Technical Support for best dynamic range - or for that matter if Sherwood were to test any other radio that had recently been aligned the manufacturer or manufacturer's service facility? We're not talking about a custom K3 here ... it's a customer radio on which the final alignment was done in Aptos. There is no reason to cast doubt on the validity of Sherwood's tests. If anyone wanted to make the test results better, they would have been done using the 8-pole filters supplied by Elecraft and not the 5-pole customer filters in the radio. 73, ... Joe, W4TV -Original Message- From: Brett Howard [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 19, 2008 1:26 AM To: 'Joe Subich, W4TV'; 'John [K7SVV]'; elecraft@mailman.qth.net Subject: RE: [Elecraft] New: K3 tops the list To arbitrarily dismiss this test as non-representative smacks of a troll. No it doesn't. This is exactly the reason why the ARRL buys a rig and doesn't accept product from manufacturers to test. If you know what is going to be tested for you can make sure to tweak and tune for those specs and/or even worse you can make non representative samples. When I was working in the car audio industry we used to read reviews all the time about amps that measured out at whatever power. Then we'd buy one and find out that it only did 70% of what the magazine reviewed it to do. After calling the magazine and asking them about their test methods we got to talking and they tore the amp apart and found out that the amp they had and the one we had was loaded with different output FETs. Did Eric and Wayne do this? I highly doubt it! But did they make sure that the thing was tweaked and tuned as well as they would have their own personal rig? You bet they did! Did they do a better job than joe blow who's putting together the kit? Probably a lil because they probably have access to better equipment and they know and the tips and tricks to eek out every bit of performance. Are we talking much? No probably less than a dB of difference between the unit but its still slightly different than just coming from the hands of the owner directly. That's all he was saying. He wasn't dismissing it just slightly questioning it. Then in the same breath said it was a fantastic radio! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: troll/trawl
Charley, My dictionary says troll is an elf or gnome or other part human creature (that often lives under bridges). In the on-line world a troll is an evil little creature who inhabits forums/newsgroups/e-mail lists who writes things to cause trouble and generate discontent or controversy. The act of doing so is trolling. The term has been in use for 20 years or more and most certainly had its genesis in the behavior of that mythical little gnome who lived under bridges and caused problems for those traveling across. I'm sure that a modern on-line aware dictionary would include the more recent definition. 73, ... Joe, W4TV -Original Message- From: Charles Harpole [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 19, 2008 4:40 AM To: Brett Howard; 'Joe Subich, W4TV'; 'John [K7SVV]'; elecraft@mailman.qth.net Subject: troll/trawl My dictionary says troll is an elf or gnome or other part human creature (that often lives under bridges). A trawl is a search of something, like fishing with a drag net or looking for a fight on a reflector with inflamatory statements. However, troll is often misused in newspapers, etc., to mean trawl. BTW, that is where the boat name trawler comes from. 73 Charly [EMAIL PROTECTED] From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; elecraft@mailman.qth.net Subject: RE: [Elecraft] New: K3 tops the list Date: Mon, 18 Feb 2008 22:25:45 -0800 CC: To arbitrarily dismiss this test as non-representative smacks of a troll. No it doesn't. This is exactly the reason why the ARRL buys a rig and doesn't accept product from manufacturers to test. If you know what is going to be tested for you can make sure to tweak and tune for those specs and/or even worse you can make non representative samples. When I was working in the car audio industry we used to read reviews all the time about amps that measured out at whatever power. Then we'd buy one and find out that it only did 70% of what the magazine reviewed it to do. After calling the magazine and asking them about their test methods we got to talking and they tore the amp apart and found out that the amp they had and the one we had was loaded with different output FETs. Did Eric and Wayne do this? I highly doubt it! But did they make sure that the thing was tweaked and tuned as well as they would have their own personal rig? You bet they did! Did they do a better job than joe blow who's putting together the kit? Probably a lil because they probably have access to better equipment and they know and the tips and tricks to eek out every bit of performance. Are we talking much? No probably less than a dB of difference between the unit but its still slightly different than just coming from the hands of the owner directly. That's all he was saying. He wasn't dismissing it just slightly questioning it. Then in the same breath said it was a fantastic radio! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: Relays for antenna switching
I've built a lot of HF relay-switched projects, including a relay-based QSK switch for my ALS-600 amplifier. I've found that virtually any relay works well at HF as long as the contact rating and voltage breakdown are sufficient. Since Power = I-squared R, at 100 watts and 50 ohms, you will have 1.414 amps RMS of RF current. And since Power = V-squared/R, at 100 watts you are looking at 70.7Vrms contact-to-contact voltage breakdown. Multiply these values by the square root of SWR if the relay will be used in a system with an SWR greater than 1:1 (worst case value). My favorite relays are the high speed OMRON signal relays available from Mouser (653-G6A-274P40-DC12), or Panasonic DS2E-M-DC12V relays available from Allied (788-1053). These are DPDT relays with contacts rated at 3-amps and 1000Vrms breakdown. These relays switch in 3-5ms typical, which is about as fast as vacuum relays. I paralleled the DPDT contacts to give a 6-amp rating for my ALS-600 QSK switch. These relays only cost about $3 each and plug into a 16-pin IC socket. Phil - AD5X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 by June?
Does anyone think that this is a realistic date, or will I most likely be waiting 8-10 months? Bill, Nobody knows how many K3's have been ordered, but we do know that they shipped zero K3's from May to June, a few K3's in July working up to 125 K3's from mid December to mid January, and 175 K3's mid Jan to mid Feb. Their proces has been refined and they know what to expect in the way of turnaround from their vendors by now. So it may be sustainable at the present rate, maybe even improved. http://www.zerobeat.net/mediawiki/index.php/K3_Serial_Numbers My guess, June is optimistic - keep an eye on the wiki and you will see precisely how much shorter the wait is getting over the next few months. [Elecraft] K3 by June? Bill kimura bill.kimura at gmail.com Tue Feb 19 16:05:00 EST 2008 Greetings everyone, I just ordered my 1st HF radio the other day, (K3) and I was told that the expected ship date would be June. (4 months out) After reading numerous threads on this mailing list about people receiving their units 8, 9, 10 months after placing the order, it's hard to be optimistic that I'll actually see my unit in 4 months. Does anyone think that this is a realistic date, or will I most likely be waiting 8-10 months? Has Elecraft ramped up their production at all recently to be able to get these units out the door faster? Thanks, - Bill (KB1PXD) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 cover
My K3 looks really spiffy with the cover that Rose Kopp made for it. I ordered it in black with just the Elecraft logo embroidered on the front in amber-gold thread. 73, John W2GW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 by June?
As you stated, it depends on how many were ordered over the past 6 months or so. It appears they would be able to produce about 700 more during the next 4 months. Jim K4JAF - Original Message - From: Don Rasmussen [EMAIL PROTECTED] To: ElecraftQRXQRXQRX List elecraft@mailman.qth.net Sent: Tuesday, February 19, 2008 4:14 PM Subject: [Elecraft] K3 by June? Does anyone think that this is a realistic date, or will I most likely be waiting 8-10 months? Bill, Nobody knows how many K3's have been ordered, but we do know that they shipped zero K3's from May to June, a few K3's in July working up to 125 K3's from mid December to mid January, and 175 K3's mid Jan to mid Feb. Their proces has been refined and they know what to expect in the way of turnaround from their vendors by now. So it may be sustainable at the present rate, maybe even improved. http://www.zerobeat.net/mediawiki/index.php/K3_Serial_Numbers My guess, June is optimistic - keep an eye on the wiki and you will see precisely how much shorter the wait is getting over the next few months. [Elecraft] K3 by June? Bill kimura bill.kimura at gmail.com Tue Feb 19 16:05:00 EST 2008 Greetings everyone, I just ordered my 1st HF radio the other day, (K3) and I was told that the expected ship date would be June. (4 months out) After reading numerous threads on this mailing list about people receiving their units 8, 9, 10 months after placing the order, it's hard to be optimistic that I'll actually see my unit in 4 months. Does anyone think that this is a realistic date, or will I most likely be waiting 8-10 months? Has Elecraft ramped up their production at all recently to be able to get these units out the door faster? Thanks, - Bill (KB1PXD) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 #441 received
From my posting from last week: - Ordered (with 50% deposit) 6 June 2007 with subsequent modifications. - Received and responded to Lisagram late Tuesday, 12 Feb 2008. - Called by Madeline for final payment info on Thursday, 14 Feb. - Received UPS shipping notice late that same day. Scheduled delivery is 19 Feb. Update: - Received K3/100 kit today (Tuesday, 19 Feb) as promised. Now I have a big decision to make. Should I drive up to Boulder from Denver to see Rob Sherwood's talk or stay home and assemble my new toy? Other alternatives that I've considered that would give Rob another K3 sample to test: - Assemble it when I get back home around midnight. No - I really need my beauty sleep and generally function badly when I'm tired. - Let Rob assemble and align it himself. No - someone will say he's too expert and that would bias the results. - Assemble it later when my workload permits. But I might be disqualified for being an electronics engineer and firmware developer who might tweak the performance in Elecraft's favor. - Have my daughter, an art historian, assemble and align it. Oops, can't do that - she's living in France. Oh my, what to do? Gus Hansen KB0YH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 #441 received
In a message dated 2/19/2008 3:17:50 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: From my posting from last week: - Ordered (with 50% deposit) 6 June 2007 with subsequent modifications. - Received and responded to Lisagram late Tuesday, 12 Feb 2008. - Called by Madeline for final payment info on Thursday, 14 Feb. - Received UPS shipping notice late that same day. Scheduled delivery is 19 Feb. Update: - Received K3/100 kit today (Tuesday, 19 Feb) as promised. Now I have a big decision to make. Should I drive up to Boulder from Denver to see Rob Sherwood's talk or stay home and assemble my new toy? Other alternatives that I've considered that would give Rob another K3 sample to test: - Assemble it when I get back home around midnight. No - I really need my beauty sleep and generally function badly when I'm tired. - Let Rob assemble and align it himself. No - someone will say he's too expert and that would bias the results. - Assemble it later when my workload permits. But I might be disqualified for being an electronics engineer and firmware developer who might tweak the performance in Elecraft's favor. - Have my daughter, an art historian, assemble and align it. Oops, can't do that - she's living in France. Oh my, what to do? Gus Hansen KB0YH ___ Align a K3 Al WA6VNN **Ideas to please picky eaters. Watch video on AOL Living. (http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/ 2050827?NCID=aolcmp0030002598) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Best way to secure RF ground from 2nd floor?
DOUGLAS ZWIEBEL wrote: HI all: I am re-doing all my 20 year old connections here in the shack, which is on the 2nd floor of my house. Can anyone point me to a resource for the best way to ensure a proper RF ground from the 2nd floor? I have lots of holes in the walls going outside (rotor cables, control lines, many coaxes, etc), so going through the wall is not an issue. If fact, maybe I can use the shield of a coax to help with an earth ground? Im not looking for resonant inside radialsI want a genuine RF ground. Looking forward to your comments. Since I suspect this may a topic of wider interest, I'll ask you post your comments here (or you can always post to me directly if you disagree with filling up the reflector). Thanks so much! de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Here is a solution from a very old QST, and all I can say is it works for me. My shack is on the 2nd floor and I run several rigs w/ amps . I was having RF everywhere until I tried this: - Run coax ( RG-8 or similar) from rig to a real good ground . Put a .01 cap across the shield and center conductor at both ends. Cap needs to be 2KV or better. You will be using the center conductor as your connection to rig and the ground rod.You should also use an ATU as mentioned in an earlier reply. 73 Dale K5AJZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Best way to secure RF ground from 2nd floor?
In a message dated 2/19/08 8:50:41 PM Eastern Standard Time, [EMAIL PROTECTED] writes: Here is a solution from a very old QST, It's not from QST. and all I can say is it works for me. My shack is on the 2nd floor and I run several rigs w/ amps . I was having RF everywhere until I tried this: - Run coax ( RG-8 or similar) from rig to a real good ground . Put a .01 cap across the shield and center conductor at both ends. Cap needs to be 2KV or better. You will be using the center conductor as your connection to rig and the ground rod.You should also use an ATU as mentioned in an earlier reply. Have you tried just using the coax as a ground conductor, without the capacitors, and the center conductor tied to the shield? 73 de Jim, N2EY ** Ideas to please picky eaters. Watch video on AOL Living. (http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/ 2050827?NCID=aolcmp0030002598) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Shipping Data Point
My K3, ordered 18 June 2007, was shipped 19 February 2008. 73, Steve NN4X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: troll/trawl
When I use a word,' Humpty Dumpty said, in a rather scornful tone,' it means just what I choose it to mean, neither more nor less.' 'The question is,' said Alice, 'whether you can make words mean so many different things.' 'The question is,' said Humpty Dumpty, 'which is to be master - that's all.' ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Best way to secure RF ground from 2nd floor?
Here is a solution from a very old QST, It's not from QST. and all I can say is it works for me. My shack is on the 2nd floor and I run several rigs w/ amps . I was having RF everywhere until I tried this: - Run coax ( RG-8 or similar) from rig to a real good ground . Put a .01 cap across the shield and center conductor at both ends. Cap needs to be 2KV or better. You will be using the center conductor as your connection to rig and the ground rod.You should also use an ATU as mentioned in an earlier reply. If it is not from QST, do you know where it is from? Do you know where (or how) I can get a reprint of it? My shack is on the second floor, too. And I believe that The Wireman used to sell a kit containing the capacitors! Dan Allen KB4ZVM K2 S/N 1757 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Orders- please contact Elecraft
Would the following customers please contact Elecraft regarding your K3 Orders: SM7KHA Martin Bengtsson Juan Bernal W8HCT John Sherrick N3CSY Fred Osbourne VK2NU David Douglass MW0JZE Anthony David G4AYR T. Greenwood Please either email [EMAIL PROTECTED] or phone 831 662 8345. Thank you, Lisa ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K1
Nope - Don't worry about the toroids. The K1 manual is excellent - has drawings and very clear explanations. I actually think winding toroid is fun! I don't get what all the hllabaloo is about. As far as tinning the leads - the way I do it is use an exacto knife to scrape off the insulation. I find it to be easier and more positive than the hot-solder method. In order for the solder method to work, the iron must be hot - hotter than I choose for actual soldering. If I can do it anyone can. 20-600 vision, thick bifocals, and colorblind to boot. Have fun! Carl WA7CS -- View this message in context: http://www.nabble.com/K1-tp15536000p15582041.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] The devil made me do it
i'm now in the k3 queue. i'll probably sell my k2 sometime in may. jim ab3cv ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Best way to secure RF ground from 2nd floor?
-Original Message- Here is a solution from a very old QST, It's not from QST. and all I can say is it works for me. My shack is on the 2nd floor and I run several rigs w/ amps . I was having RF everywhere until I tried this: - Run coax ( RG-8 or similar) from rig to a real good ground . Put a .01 cap across the shield and center conductor at both ends. Cap needs to be 2KV or better. You will be using the center conductor as your connection to rig and the ground rod.You should also use an ATU as mentioned in an earlier reply. If it is not from QST, do you know where it is from? Do you know where (or how) I can get a reprint of it? My shack is on the second floor, too. And I believe that The Wireman used to sell a kit containing the capacitors! Dan Allen KB4ZVM K2 S/N 1757 - Those capacitors look like shorts at RF. So the center conductor is tied to the shield at RF, but not at D-C. Direct current isn't the problem. Tying the shield to the center makes the impedance of the cable slightly less because it's slightly bigger to the RF. Even so, at RF it's still just a wire from the second story to ground. If you force a wire to either a low impedance (grounded) or high impedance (insulated) at one end, it will show at the opposite end the opposite impedance if it's 1/4 wavelength long or an odd multiple of 1/4 wavelength long, and it'll show at the opposite end the *same* impedance if it's 1/2 wave long or a multiple of 1/2 wavelength long. Everything in between will be something in between. Even a marginal RF ground will cure problems caused by no RF ground in some situations. Even a hunk of coax. The things you can do to provide a low(er) impedance ground than a wire is to make the wire larger, or parallel a lot of wires to ground, all separated, such as running a large wide sheet of metal from the rig to the ground. If you're on the second floor, that's seldom practical for those who live in the same building with our shacks ;-) My shack is, fortunately, on the ground floor about 3 feet from where the large metal conduit for the underground utilities emerges from the earth. It's also where all the other services - telephone, cable, etc. - are grounded along with the mains ground. And my RF ground goes there. Since it's only a few feet away, I use a 2-foot wide strip of copper attached to the wall from the rig to a point on the wall opposite the mains conduit. Then a pair of ground wires makes the run through the wall to the mains conduit. Each wire is about 12 inches long. Two in parallel reduce the impedance of one. To RF, they look like on FAT conductor. I didn't suggest that because, from the 2nd floor, it'd take very large piece of metal to show low enough impedance. But all is not lost. You can operate free from RF when you aren't close to ground. It's been done by everything from rigs in Zeppelins to Hams stuck in the attic! The trick is to keep the impedance of all RF antenna circuits at the rig low. A 50 ohm dummy load does that, but it's a lousy radiator. But it demonstrates the concept: keep the impedance low. Feeding an antenna at a current loop (low-impedance) point will do that. That's why Hams seldom have trouble with center-fed dipoles. The impedance at the center of a dipole is low - typically not far from 50 ohms. Bringing the feed point of the dipole directly to the rig or through a length of coax that has a low SWR keeps the impedance at the rig low. The impedance is low because each half of a dipole is 1/4 wavelength long. The far ends are insulated, forcing their impedance high. So the ends at the rig are low impedance - typically 20 to 30 ohms. Two of them makes a 50 ohm load for the rig. The famous Zeppelin antennas did the same for a rig floating high in the sky held aloft by a bag of hydrogen. An open wire feed line, exactly 1/4 wavelength long, was connected to the rig. At the far end one side of the feeder was connected to nothing at all: it was well insulated. The other side of the feeder was connected to a 1/2 wavelength hunk of wire floating out behind the ship in the air stream. The 1/2 wavelength long wire showed a high impedance to the feeder at its end. The feed line, being 1/4 wave long matched that high impedance while showing a low impedance at the rig. The other side of the feed line, being insulated at the far end, also showed a low impedance at the rig in the airship. Low impedance at the rig meant no RF to cause sparks and burns which meant the airship didn't catch fire. If your not using a Zeppeline antenna you can do the same thing. Just hook a 1/4 wave long piece of wire to the chassis of your rig. Yes, that means you need one for each frequency you operate on. That's the bad news. The good news is that it's generally adequate to use only one for each Amateur band. As I mentioned above, you don't need a perfect ground. The problem with such counterpoises, other
Re: [Elecraft] RE: Ducie K3 Drifting on 21.025?
Don Nesbitt wrote: Jim - I've noticed the same thing. Didn't know if it was them or me as I've noticed it before on a few signals! -- Don N4HH K3 #83 Its possible it might have been due to some strange propagation conditions. I once heard WWV drifting a little and there is almost no way their signal should have been doing that. I know my radio at the time was fine. It was definitely odd to hear. -- Cheers! Kevin. http://www.ve3syb.ca/ |What are we going to do today, Borg? Owner of Elecraft K2 #2172 |Same thing we always do, Pinkutus: | Try to assimilate the world! #include disclaimer/favourite | -Pinkutus the Borg ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: Ducie K3 Drifting on 21.025?
In a recent message, Kevin Cozens [EMAIL PROTECTED] wrote ... Its possible it might have been due to some strange propagation conditions. I once heard WWV drifting a little and there is almost no way their signal should have been doing that. I know my radio at the time was fine. It was definitely odd to hear. Or possibly they have only used one felt washer under the main tuning knob ;-) 73 -- David G4DMP Leeds, England, UK -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: Ducie K3 Drifting on 21.025?
I can happily say, sounded like a 2 washer K3 to 2 washer K3 as I made the QSO this morning :) 73 de M0XDF / K3 #174 On 20/02/2008 07:37, David Pratt [EMAIL PROTECTED] sent: In a recent message, Kevin Cozens [EMAIL PROTECTED] wrote ... Its possible it might have been due to some strange propagation conditions. I once heard WWV drifting a little and there is almost no way their signal should have been doing that. I know my radio at the time was fine. It was definitely odd to hear. Or possibly they have only used one felt washer under the main tuning knob ;-) 73 -- Natural ability without education has more often attained to glory and virtue than education without natural ability. -Cicero, statesman, orator, writer (106-43 BC) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
