Re: [Elecraft] D-Star
Mike, Please disassociate my posts from official Elecraft. While I do contract repair work on the legacy products (K1, KX1, K2, etc,) for Elecraft, I do not represent Elecraft in any statements that I make here on the reflector. What I suggest is my own independent offering. 73, Don W3FPR. On 4/28/2012 11:40 PM, amsct...@comcast.net wrote: Don - I am not suggesting that you include D-Star in your products, and I am not going to change your mind, but I tend to disagree with the concern about D-Star over the proprietary nature of ABME... Not to split hairs, but the mode of D-Star is Gaussian minimum shift keying, a form of frequency shift keying. The D-Star implementation of GMSK is an open standard, and has been implemented at the hobbyist level. Which brings us to ABME, a proprietary code-book protocol (codec). I struggle with the lack of a published, unfettered standard as many do, but...I wonder how large of a practical impact this on me. I think about the other things that I can't make myself but leverage in my station, such as DSP controllers containing proprietary intellectual property and microprocessor-based transceivers (e.g. K3) from which I can not, to the best of knowledge, obtain and reuse the code. I think that one of the things that distinguishes open from proprietary is that I could, if I was so inclined, attempt to implement AMBE in software if ABME was open. I am not so inclined, no more than I am inclined to hack my K3 or replace the DSP in one of my other radios with a custom FPGA. If the test for ABME is the ability of an individual or organization to implement it at-will and without royalty, then I would have to admit it fails...but...with all of the proprietary IP and non-reproducible components in my amateur systems, and knowing of the existence of a number of modes (protocols) that are implemented by one seriously-flawed PC application (that I can't decode by ear), I guess I just have a hard time seeing the big difference. In the end, I think D-Star is fun and probably less of threat to the long-term health of amateur radio than gentrification and apathy, but that's just my opinion... 73, Mike Alexander N8MSA amsct...@comcast.net *From: *Don Wilhelm w3...@embarqmail.com *To: *Greg Troxel g...@work.lexort.com *Cc: *elecraft@mailman.qth.net *Sent: *Saturday, April 28, 2012 9:42:29 PM *Subject: *Re: [Elecraft] D-Star I agree fully, despite the article in the May issue of QST which glosses over the proprietary nature of D-Star. I am opposed to the use of proprietary protocols in ham radio. Ham radio to me is free radio. I have passed my license requirements, and should be able to use whatever modulation techniques are authorized by the FCC. The thought of paying for a license (even though that payment may be bundled with a transceiver purchase) is foreign to my views of ham radio. Certainly, I buy computers with Windows loaded, but I do not buy Icom transceivers with D-Star loaded. That is what is foreign to my view of ham radio. Until someone comes up with an open source and free to use substitute for the AMBE Codec that is owned by Digital Voice Systems, Inc., I will not be using D-Star. 73, Don W3FPR On 4/28/2012 9:17 PM, Greg Troxel wrote: I would hope that Elecraft would not add D-Star support; I think it's against the spirit of amateur radio, and particularly contrary to the kit culture, to have an on-air specification that an individual amateur is precluded from implementing without obtaining a patent license. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] FM Transmit Audio Level
Ed, Don't forget there is a High/Low mike gain setting (MAIN:MIC SEL Tap 1 to toggle High/Low). Probably not much use to you unless it can be somehow selected for FM only. 73 Tom G3OLB KL7UW wrote: So I wonder if there is an internal mic gain pot that can be adjusted for FM? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Frequency Shift
Aging of components? Vy 73, Olli - DH8BQA http://www.dh8bqa.de/ - Original Message - From: w0ih mfros...@msn.com To: elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 4:52 AM Subject: [Elecraft] K3 Frequency Shift A couple weeks ago, I was on 40 meters with a group of friends, and one of the guys (likes everyone on frequency ;-) suggested that I was off. I finally got around to checking the K3 last week and found that it was off by about 260 Hz from what it should have been. I rechecked the calibration (against WWV, per the manual instructions) and the reference oscillator had not changed from the original setting (I had it marked down in the manual from when I first calibrated it). I had to move it by 260 Hz to get it to zero beat WWV. Anyone have any idea why it should shift frequency? I can't say that I'm terribly concerned, more curious about it. Mike __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft UK_EUlocal net
Not any more. I set an 80m SSB Sunday morning net up some time ago, it was later run by Ian, G0VGS. There were few callers so we called it a day. 73 Dave, G4AON Dear all is there a eu/Uk Elecraft net. If so what the time and QRG please Thanks Tony G0GMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft UK_EUlocal net
I would be happy to join a net again, I've just strung up a new aerial and you might hear me now on 80 or 40m. David G3UNA - Original Message - From: Dave Johnson dave.g4...@gmail.com To: elecraft elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 10:08 AM Subject: Re: [Elecraft] Elecraft UK_EUlocal net Not any more. I set an 80m SSB Sunday morning net up some time ago, it was later run by Ian, G0VGS. There were few callers so we called it a day. 73 Dave, G4AON Dear all is there a eu/Uk Elecraft net. If so what the time and QRG please Thanks Tony G0GMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft UK_EUlocal net
I too would be happy to join again, but the time didn't suit me - a bit early on a Sunday :-) What about during the week in evening, (but diff band)? 73 de David, M0XDF (K3 #174, P3 #108) -- Some primal termite knocked on wood, And tasted it, and found it good! And that is why your Cousin May, Fell through the parlor floor today. - Ogden Nash (1902-1971) On 29 Apr 2012, at 13:09, David Cutter wrote: I would be happy to join a net again, I've just strung up a new aerial and you might hear me now on 80 or 40m. David G3UNA - Original Message - From: Dave Johnson dave.g4...@gmail.com To: elecraft elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 10:08 AM Subject: Re: [Elecraft] Elecraft UK_EUlocal net Not any more. I set an 80m SSB Sunday morning net up some time ago, it was later run by Ian, G0VGS. There were few callers so we called it a day. 73 Dave, G4AON Dear all is there a eu/Uk Elecraft net. If so what the time and QRG please Thanks Tony G0GMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Firmware ver. for K3 only
What is the last firmware ver. that is just for the K3? I don't have a P3 or Amp. But I would like to keep the radio up to date. Thanks Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PR-6 issue when QRO
I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. Any ideas? 73 Gregg W6IZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Firmware ver. for K3 only
Chris: This information is posted on the Elecraft website. 73, Ken K3IU On 4/29/2012 8:47 AM, Chris Hembree wrote: What is the last firmware ver. that is just for the K3? I don't have a P3 or Amp. But I would like to keep the radio up to date. Thanks Chris W7CTH __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Frequency Shift
Quite so. The calibration against WWV is not a one time event, I do it at least a couple of times a year. Actually it can vary a few counts in a day, mainly dependent upon heat soak of the front panel. Mine regularly runs at 37C. If my understanding is correct the REF CAL number is a stored number not a direct measurement of the TCXO frequency, though it might look like that. Therefore it will not change, ever, unless manually done so or the EXTREF board is installed and running. It would be interesting if someone with an EXTREF board installed would post the change in REF CAL number from cold to hot and extended run. I used to drive the local Intelsat Std. B earth station and our uplinks at 6GHz were locked to an approximately 4MHz precision TCXO which locked a 100MHz osc, which locked the final SHF osc. It was not unusual to see a couple of Hz/month wander (at 4MHz). Not done like that in the new station. Neither does it have two stage parametric RX preamps that need de-icing twice a year at the feed assembly, but that is another story. Regards, Mike VP8NO On 29/04/2012 06:06, Oliver Dröse wrote: Aging of components? Vy 73, Olli - DH8BQA http://www.dh8bqa.de/ - Original Message - From: w0ihmfros...@msn.com To:elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 4:52 AM Subject: [Elecraft] K3 Frequency Shift A couple weeks ago, I was on 40 meters with a group of friends, and one of the guys (likes everyone on frequency ;-) suggested that I was off. I finally got around to checking the K3 last week and found that it was off by about 260 Hz from what it should have been. I rechecked the calibration (against WWV, per the manual instructions) and the reference oscillator had not changed from the original setting (I had it marked down in the manual from when I first calibrated it). I had to move it by 260 Hz to get it to zero beat WWV. Anyone have any idea why it should shift frequency? I can't say that I'm terribly concerned, more curious about it. Mike __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 no RF ouput
My K3 produces no RF in transmit at the 10 watt or 100 watt levels. The display shows two horizontal lines during transmit and shows 0.0 watts output. I have loaded older (4.47) firmware and then reloaded newer (4.48). I have done a re-initialization and reloaded all parameters. I removed the KPA3 and reinstalled it. No noticeable burned components were found. I believe the K3 did show, very briefly, a fault 6 and fault 7 but it was a very brief flash in the display. I thought SWR sensing diodes might have been the cause so I replaced D36 and D37. Any help would be appreciated. Thanks Todd __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ANT 1-2 isolation
Interesting. I looked at it from the other direction. With the K3 ANT1 connected to a dummy load and ANT2 connected also to a dummy load via my WM-2 QRP wattmeter. With 100W out at ANT1, out of ANT2 I measured 30mW at 50MHz down to 1mW at 7.1MHz. A range of -30dB to -50dB. 50MHz is not in the WM-2 spec, however, 25mW was measured at 28.2MHz which gives -36dB. There are obviously potential measurement errors there so no one needs to take it as absolute. Perhaps someone with access to precision equipment could also do the test. Regards, Mike VP8NO On 28/04/2012 12:27, Mark - G4AXX wrote: The isolation between ANT 1 and ANT 2 varies from -76dB at 1.8MHz to -46dB at 50MHz. This is measured with a signal generator, using the K3 S-meter, with ANT 2, AUX RF and RX ANT IN terminated in 50 Ohms. http://elecraft.365791.n2.nabble.com/file/n7509068/ANT1-2_leakage.jpg The isolation between AUX RF and ANT 1/2 is95dB (1-30MHz), rising to -70dB (52MHz). This was measured with an N2PK VNA. I have tried to dress the unscreened wires from ANT 1 2 to the ATU in a way to minimise coupling, but the coupling is dominated by the capacitance of relays K18 K19. Using ANT1/2 for Diversity reception means the receivers are never truly independent. There is likely to be more coupling inside the K3 than can usually be achieved by physical separation of the antennas. Operating Diversity reception with the SUB RX fed from the AUX RF BNC input is the way to go. 73 Mark G4AXX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Firmware ver. for K3 only
I believe it is 4.48. http://www.elecraft.com/K3/k3_software.htm Good luck! Keith AG6AZ Sent from my iPhone please excuse typos On Apr 29, 2012, at 5:47 AM, Chris Hembree w7...@yahoo.com wrote: What is the last firmware ver. that is just for the K3? I don't have a P3 or Amp. But I would like to keep the radio up to date. Thanks Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
Well I have the money in the bank and there is not a heck of a lot of difference in the price of the K2 and KX3 so it's decision time. Do I buy a K2 or get in line for a KX3? I am looking forward to the building process, so that speaks for the K2. I imagine, even in kit form that the KX3 is not much of a challenge - just plugging in a bunch of pre-assembled boards. On the other hand the KX3 is state of the art and the K2 is over ten years old. What are your thoughts? 73. Joe -- View this message in context: http://elecraft.365791.n2.nabble.com/Decisions-Decisions-buy-a-K2-or-wait-for-a-KX3-tp7511085.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Gregg, FWIW, I have a PR6 and use a THP amp on 6M with no problem. 73! Kem - K0PP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Frequency Shift
It would be interesting if someone with an EXTREF board installed would post the change in REF CAL number from cold to hot and extended run. For K3 #24, w/EXTREF: Cold start: 49.379.774 is typical; After ~2 hours warmiing up: 49.379.693 is typical. The EXTREF here is driven by a Trimble Thunderbolt-based GPSDO. 73, matt W6NIA == I used to drive the local Intelsat Std. B earth station and our uplinks at 6GHz were locked to an approximately 4MHz precision TCXO which locked a 100MHz osc, which locked the final SHF osc. It was not unusual to see a couple of Hz/month wander (at 4MHz). Not done like that in the new station. Neither does it have two stage parametric RX preamps that need de-icing twice a year at the feed assembly, but that is another story. Regards, Mike VP8NO On 29/04/2012 06:06, Oliver Dröse wrote: Aging of components? Vy 73, Olli - DH8BQA http://www.dh8bqa.de/ - Original Message - From: w0ihmfros...@msn.com To:elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 4:52 AM Subject: [Elecraft] K3 Frequency Shift A couple weeks ago, I was on 40 meters with a group of friends, and one of the guys (likes everyone on frequency ;-) suggested that I was off. I finally got around to checking the K3 last week and found that it was off by about 260 Hz from what it should have been. I rechecked the calibration (against WWV, per the manual instructions) and the reference oscillator had not changed from the original setting (I had it marked down in the manual from when I first calibrated it). I had to move it by 260 Hz to get it to zero beat WWV. Anyone have any idea why it should shift frequency? I can't say that I'm terribly concerned, more curious about it. Mike __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
Joe, Actually -- depending on the K2 option set you would choose, the KX3 could be less expensive than the K2. But if your desire is to build by soldering parts on a board and winding toroids, then the K2 will be your choice. Building the KX3 is more about mechanical assembly - there is no soldering. If your desire is to solder kits, take a look at the Elecraft mini-modules. There are a number of very useful kits available - for instance, every ham station needs a dummy load, and the XG2 (or XG3) is a good tool for calibrating the S-meter. 73, Don W3FPR On 4/29/2012 9:43 AM, af6ni wrote: Well I have the money in the bank and there is not a heck of a lot of difference in the price of the K2 and KX3 so it's decision time. Do I buy a K2 or get in line for a KX3? I am looking forward to the building process, so that speaks for the K2. I imagine, even in kit form that the KX3 is not much of a challenge - just plugging in a bunch of pre-assembled boards. On the other hand the KX3 is state of the art and the K2 is over ten years old. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 ANT 1-2 isolation
Oops, I should have written that I saw 100mW at 50MHz, not 30 which was the loss in dB. Regards, Mike VP8NO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Firmware ver. for K3 only
I have a basic K3 and only update the FW when there is some new feature that I'm interested in. I am still on 4.36. Don't know if this version is just for the K3, but it is the last one that had anything new that I was interested in. If you're not sure which version to load you might as well go with the latest. 73, Drew AF2Z On Sun, 29 Apr 2012 05:47:19 -0700 (PDT), Chris W7CTH wrote: What is the last firmware ver. that is just for the K3? I don't have a P3 or Amp. But I would like to keep the radio up to date. Thanks Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 no RF output
Todd, I experienced the same problem a couple of months ago. I never noticed a fault, but maybe it did it, and I didn't notice. I emailed Gary (supp...@elecraft.com) and tried the EE INIT including reloading previously saved configurations. I ended up sending the radio (S/N 3598) in. Keith found an IC that wasn't properly soldered, but really nothing else. It never malfunctioned while there. He did extended burn-in sessions and installed a couple updates, including De-Oxit to the front panel connections. It's worked fine since then. I was charged for an hour of time, and I imagine he spent more time than that. It was unsettling to not have conclusively determined the problem, especially since it seemed to happen without warning, but it's been working fine. 73, Jim N7US -Original Message- From: T Gahagan [mailto:wa7...@gmail.com] My K3 produces no RF in transmit at the 10 watt or 100 watt levels. The display shows two horizontal lines during transmit and shows 0.0 watts output. I have loaded older (4.47) firmware and then reloaded newer (4.48). I have done a re-initialization and reloaded all parameters. I removed the KPA3 and reinstalled it. No noticeable burned components were found. I believe the K3 did show, very briefly, a fault 6 and fault 7 but it was a very brief flash in the display. I thought SWR sensing diodes might have been the cause so I replaced D36 and D37. Any help would be appreciated. Thanks Todd __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Don: I have replaced the open frame relay with Schrack relays 73 Gregg -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, April 29, 2012 10:12 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Firmware ver. for K3 only
Chris: There are a couple of ways to determine this: http://www.elecraft.com/K3/k3_software.htm shows the current K3 firmware revisions numbers. If you start the K3 Utility and click the Copy Files from Elecraft from the firmware tab, the K3 Utility will copy the most recent production firmware files onto your personal computer and and compare them with what's in your K3. Often (but not right now) a pre-production Beta firmware version is available. There'll be a reference to that on the main K3 software page when appropriate. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chris Hembree Sent: Sunday, April 29, 2012 5:47 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Firmware ver. for K3 only What is the last firmware ver. that is just for the K3? I don't have a P3 or Amp. But I would like to keep the radio up to date. Thanks Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
Joe - The performance of each of these radios is so good that important (perhaps more so) to consider 1) what you'll be doing with them and 2) what your operating aesthetic is. For me the strength of the K2 is high performance simplicity, for CW operation, in a low-power, analog, user-serviceable design. Despite its age it doesn't feel outdated to me. The KX3: More modes, more bands, more easily expandable/flexible (software defined), digital features (NR, DSP, APF, ...), more portable, and if it's K3-like, perhaps a smoother, more quality feel to the UI. Elecraft has (again) designed two different radios with little overlap (though each one could probably work fine as your only station). Andrew, NV1B .. On Sun, Apr 29, 2012 at 9:43 AM, af6ni astro_cr...@hotmail.com wrote: Well I have the money in the bank and there is not a heck of a lot of difference in the price of the K2 and KX3 so it's decision time. Do I buy a K2 or get in line for a KX3? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Greg, Is that SB-200 a modified for 6 meters only amplifier, one that has six meters added to the HF bands or is the problem happening when operating on HF bands? Is the K3/PR6 configured to bypass and turn the PR6 off when operating on HF? 73, ... Joe, W4TV On 4/29/2012 11:10 AM, Gregg Marco W6IZT wrote: Don: I have replaced the open frame relay with Schrack relays 73 Gregg -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, April 29, 2012 10:12 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
I may just have been lucky so far, but with a DEM 6M preamp and converted SB220, everyone has been getting along with the default 8ms delay in the K3 and a stock SB220 relay. Be aware that relay switching speeds are specified without a snubber diode connected. Adding the diode can greatly extend the release time of a relay. With the limited testing I have done, it seems not all relays act in the same way (i.e. some go much slower, others not so much). In the Dow-key design guide they indicate A transient suppression diode across the actuating coil can increase the release time of an electromechanical switch by as much as 100 times. There are ways around this with the use of zeners instead of just a diode. Mark n2qt -Original Message- From: Don Wilhelm Sent: Sunday, April 29, 2012 10:11 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Start Up Problem
Over the past 6 months my K3 has developed a curious problem. When I turn it on and it goes through it's boot cycle, I go to key the radio the rig does not key properly in that it drops a dit or dah. It makes no difference what antenna I use or if the amp is on or off or what I use to key the radio - computer or external paddle. After a warm up period of say 5 minutes, all's well and the rig keys normally. This gets to be a problem if I turn the rig on and there is something I want to work immediately. If I wait then all's well. I'm guessing there is either a board or component that isn't totally happy until this warm up is complete. Thoughts appreciated. Pete, W1RM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 + P3 issues
I have a K2 that is performing perfectly, it has all the options except for 60 meters. I am wondering it it is possible to integrate the P3 with the K2? I realize that some of the features of the P3 + K3 pair will probably not be available, but will the basic P3 work with the K2 to display band scope type information?Also, when this P3 feature someday becomes available, will the P3 display RF envelope (TX output) waveforms when using it with a K2? Has anyone done this, and if so, what issues were encountered? - Jim, KL7CC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 no RF output
Thanks to you guys for the ideas. The voltage does not vary when going to transmit mode. It stays a constant 13.5 volts and the current drain stays at about 1.18 amps. The horizontal lines are two lcd (end to end horizontal) lines that take the place of the frequency when I go to transmit. As soon as I go back to receive the frequency returns. These lines generally indicate that a device is not installed as I recall such as dvr3, kat3, etc. My wife says we had some distant lightning while I was at the DX convention but all equipment was grounded. I'm suspicious that static fried something. Bypassing the KPA3 does not make any difference. I do hear a side tone in CW but again, there is no RF being produced. Initially the problem was not being able to do 5 watt tx gain and the K3 shut off on its own. I was able to see power output while doing the 50 watt tx gain but as stated now there is no RF being produced at all. Thanks again and it looks like a trip to Elecraft for the K3. Todd -Original Message- From: Jim N7US Sent: Sunday, April 29, 2012 9:09 AM To: 'Elecraft List' Cc: 'Gary Surrency' Subject: Re: [Elecraft] K3 no RF output Todd, I experienced the same problem a couple of months ago. I never noticed a fault, but maybe it did it, and I didn't notice. I emailed Gary (supp...@elecraft.com) and tried the EE INIT including reloading previously saved configurations. I ended up sending the radio (S/N 3598) in. Keith found an IC that wasn't properly soldered, but really nothing else. It never malfunctioned while there. He did extended burn-in sessions and installed a couple updates, including De-Oxit to the front panel connections. It's worked fine since then. I was charged for an hour of time, and I imagine he spent more time than that. It was unsettling to not have conclusively determined the problem, especially since it seemed to happen without warning, but it's been working fine. 73, Jim N7US -Original Message- From: T Gahagan [mailto:wa7...@gmail.com] My K3 produces no RF in transmit at the 10 watt or 100 watt levels. The display shows two horizontal lines during transmit and shows 0.0 watts output. I have loaded older (4.47) firmware and then reloaded newer (4.48). I have done a re-initialization and reloaded all parameters. I removed the KPA3 and reinstalled it. No noticeable burned components were found. I believe the K3 did show, very briefly, a fault 6 and fault 7 but it was a very brief flash in the display. I thought SWR sensing diodes might have been the cause so I replaced D36 and D37. Any help would be appreciated. Thanks Todd __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Joe: It is a 6m only amp. Yes, the K3 is set to bypass the PR6 when on HF. The TR relay has been replaced by a TR switch that Dick, K5AND designed that uses Schrack relays that are spec'd to switch in 8 msec. 73 Gregg -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, April 29, 2012 11:34 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] PR-6 issue when QRO Greg, Is that SB-200 a modified for 6 meters only amplifier, one that has six meters added to the HF bands or is the problem happening when operating on HF bands? Is the K3/PR6 configured to bypass and turn the PR6 off when operating on HF? 73, ... Joe, W4TV On 4/29/2012 11:10 AM, Gregg Marco W6IZT wrote: Don: I have replaced the open frame relay with Schrack relays 73 Gregg -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, April 29, 2012 10:12 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
The radios are very different and both are good. Wrack your brain and decide which one you want! The wait time for a KX3 will pass and you will forget about it, but whatever radio you buy will stay the same. Get the one that fits YOUR needs and wants. I waited 17 years for a radio that I thought would be better than my TS-850 then waited 6 months for Elecraft to ship my K3. I am not sorry! Willis 'Cookie' Cooke K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart From: af6ni astro_cr...@hotmail.com To: elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 8:43 AM Subject: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3?? Well I have the money in the bank and there is not a heck of a lot of difference in the price of the K2 and KX3 so it's decision time. Do I buy a K2 or get in line for a KX3? I am looking forward to the building process, so that speaks for the K2. I imagine, even in kit form that the KX3 is not much of a challenge - just plugging in a bunch of pre-assembled boards. On the other hand the KX3 is state of the art and the K2 is over ten years old. What are your thoughts? 73. Joe -- View this message in context: http://elecraft.365791.n2.nabble.com/Decisions-Decisions-buy-a-K2-or-wait-for-a-KX3-tp7511085.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] FM Transmit Audio Level
Tom, Thanks for that tip. I so rarely go into the menu so was not even aware of a mic gain switch. I wonder what the level change is? If it is 3-dB or more it might affect FM deviation sufficiently to fix the low deviation reports I get. If that will accomplish the deviation issue perhaps firmware can be added some day for FM mode which will set the mic gain? I use my K3 on 6m/2m/222/432/1296 so FM is more than a funny curiosity on 10m for me. I'll have to experiment on one of the 2m FM channels and get some on-air reports. I only have one radio at the present (the K3) so I cannot monitor my signal on another radio to determine the affect. I do long for the days when I had a service monitor at work and could make such tests so simply. I am in negotiation to buy a used HP-141T spectrum analyzer which would display FM deviation of a tone visually. I was just playing with the NR adjustments this morning and noting their effect - interesting. What's so nice about the K3: you own it two years and still have stuff to discover about it! 73, Ed - KL7UW --- Date: Sun, 29 Apr 2012 08:23:58 +0100 From: Tom Boucher t...@telemetry.demon.co.uk Subject: [Elecraft] [K3] FM Transmit Audio Level To: elec...@mailman.qth.net elecraft@mailman.qth.net Message-ID: 85431716172341E398D75267D9C13EC5@Tom Content-Type: text/plain; charset=iso-8859-1 Ed, Don't forget there is a High/Low mike gain setting (MAIN:MIC SEL Tap 1 to toggle High/Low). Probably not much use to you unless it can be somehow selected for FM only. 73 Tom G3OLB KL7UW wrote: So I wonder if there is an internal mic gain pot that can be adjusted for FM? 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - background hiss
My first thought was to change the EQ more like I have my TX eq set pulling the low end down and raising the high end up does tend to accent the high-end of speech for clarity on phone but on a quiet band makes the band noise sound hissy. I don't have my low end set up to the plus side as high nor the high end set as low on the negative side as N1EU but have went in this general direction to smooth out the band noise but in a very active round table I don't know if the noise tone is really that important in relation to good receive audio clarity. If you go too high on the plus side of the bottom end and too negative on the high end you can tend to use loose some signal clarity and get a little muddy. 73 de KE4WY Jim These work for me, CW or Phone: RX Eq settings Low to High audio band: 50 = +2 100= +2 200= +1 400= 0 800=-1 1.6k= -2 2.4k= -3 3.2k= -4 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Adrian Sent: Saturday, April 28, 2012 8:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - background hiss You guys are on the wrong track, NR is a waste of time on the K3 on SSB, esp low bands and attenuation ATT and/or RF gain reduction is way better to keep audio clarity whilst making noise transparent. Recommend; AGC threshold = 8 AGC slope = 0. This white noise issue is fixed with N1EU pink noise roll-off settings; RX Eq settings Low to High audio band:50 = +9 100= +5 200= +2 400=0 800=-2 1.6k=-3 2.4k=-5 3.2k=-10 Problem solved . Adrian ... vk4tux __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Frequency Shift
Mike, I was one of the beta-testers of the K3EXREF and see about a move from 49.380 to 49.380.080 over about an hour from cold start. Then is settles down to moving only in single digit amounts. MY 10-MHz reference is a surplus OCXO (oven controlled xtal osc) rated at +/- 5 E-12 which holds the K3 to within +/- 2 Hz at 28-MHz. The error is proportional to frequency so error is 1Hz at 20m and below. On 6m it runs between 2-Hz and 3-Hz error measured on my mw frequency counter locked to a Rubidium standard. You can view my complete beta-test report on the EXREF at: http://www.kl7uw.com/K3EXREF.htm Date: Sun, 29 Apr 2012 06:58:42 -0700 From: Matt Zilmer mzil...@verizon.net Subject: Re: [Elecraft] K3 Frequency Shift To: Mike Harris mike.har...@cwimail.fk Cc: elecraft@mailman.qth.net Message-ID: 62iqp7l39asr4eh8abo3h36g64m6q5u...@4ax.com Content-Type: text/plain; charset=ISO-8859-1 It would be interesting if someone with an EXTREF board installed would post the change in REF CAL number from cold to hot and extended run. For K3 #24, w/EXTREF: Cold start: 49.379.774 is typical; After ~2 hours warmiing up: 49.379.693 is typical. The EXTREF here is driven by a Trimble Thunderbolt-based GPSDO. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - background hiss
While tweaking the rx EQ may help mask the problem I feel the root cause is that the AGC operates at too low a signal level. I like to set my RF gain at a level where I can hear what I want but not the band noise. If I then engage the AGC it has the effect of increasing the gain by 2 or three S points increasing background band noise by the same amount. Or put another way, the same as increasing the RF gain control by 15 - 20 degrees of arc. It is not receiver generated noise. My receiver is fabulously quiet with the AGC off. 73 John G3XRJ My first thought was to change the EQ more like I have my TX eq set pulling the low end down and raising the high end up does tend to accent the high-end of speech for clarity on phone but on a quiet band makes the band noise sound hissy. I don't have my low end set up to the plus side as high nor the high end set as low on the negative side as N1EU but have went in this general direction to smooth out the band noise but in a very active round table I don't know if the noise tone is really that important in relation to good receive audio clarity. If you go too high on the plus side of the bottom end and too negative on the high end you can tend to use loose some signal clarity and get a little muddy. 73 de KE4WY Jim These work for me, CW or Phone: RX Eq settings Low to High audio band: 50 = +2 100= +2 200= +1 400= 0 800=-1 1.6k= -2 2.4k= -3 3.2k= -4 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Kit Shipping Schedule Theory
Fred- Thanks for the laugh! Very insightful. And thanks for the other comments too. I realize conjecture is useless, but somehow we all do this when we are so interested in the fate of something as compelling as the KX-3. If Tom's list is only a fraction of the actual orders (and I think it might be a higher fraction than imagined), the only data one can draw from it - is that this poll of existing orders does represent the /relative ratio/ of kit to factory orders. (a 10% random polling sampling gives over 95% accuracy) We can also see that it seems that no orders have been shipped for a week. Also, we can observe that Eric and Wayne have erred on the side of less information over more information. Whatever generates less inquiry traffic for them is best. They have been down this road before. We who are waiting just hope that production of the KX-3 will continue at some date and that eventually the object of our desire will appear on our doorstep. I can't say that ANY ham radio produced in my 5 sunspot cycles has been as tantalizing as the KX-3. I think it will be what puts Elecraft into Ham Radio history. And I certainly didn't mean to infer that the $100 price difference had an influence on not shipping kits. Obviously their company was founded on making kits and it is a winning approach. If any of we who ordered -could create such a masterpiece of engineering, we would do so. A major tip-of-the-hat to Eric and Wayne for achieving this level of design excellence. Bob-AB5N -- View this message in context: http://elecraft.365791.n2.nabble.com/Kit-Shipping-Schedule-Theory-tp7509170p7511527.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Kit Shipping Schedule Theory
I'm guessing with the lengthy time to ship all back orders, the KAT500 is being pushed further behind it's anticipated April delivery.. I am as anxious to receive this as you are with the KX3. Phil Philip LaMarche 727-944-3226 727-510-5038 Cell www.w9dvm.com WWW.FLAMGROUP.COM K3 # 1605 KPA500 # 029 P3 #1480 CCA 98-00827 CRA 1701 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of AB5N Sent: Sunday, April 29, 2012 1:48 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Kit Shipping Schedule Theory Fred- Thanks for the laugh! Very insightful. And thanks for the other comments too. I realize conjecture is useless, but somehow we all do this when we are so interested in the fate of something as compelling as the KX-3. If Tom's list is only a fraction of the actual orders (and I think it might be a higher fraction than imagined), the only data one can draw from it - is that this poll of existing orders does represent the /relative ratio/ of kit to factory orders. (a 10% random polling sampling gives over 95% accuracy) We can also see that it seems that no orders have been shipped for a week. Also, we can observe that Eric and Wayne have erred on the side of less information over more information. Whatever generates less inquiry traffic for them is best. They have been down this road before. We who are waiting just hope that production of the KX-3 will continue at some date and that eventually the object of our desire will appear on our doorstep. I can't say that ANY ham radio produced in my 5 sunspot cycles has been as tantalizing as the KX-3. I think it will be what puts Elecraft into Ham Radio history. And I certainly didn't mean to infer that the $100 price difference had an influence on not shipping kits. Obviously their company was founded on making kits and it is a winning approach. If any of we who ordered -could create such a masterpiece of engineering, we would do so. A major tip-of-the-hat to Eric and Wayne for achieving this level of design excellence. Bob-AB5N -- View this message in context: http://elecraft.365791.n2.nabble.com/Kit-Shipping-Schedule-Theory-tp7509170p 7511527.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 + P3 issues
Jim, Add an IF output buffer to the K2 and connect the P3. Clifton Labs makes a Z1 buffer amplifier specific for the K2. 73, Don W3FPR On 4/29/2012 11:48 AM, Jim Wiley wrote: I have a K2 that is performing perfectly, it has all the options except for 60 meters. I am wondering it it is possible to integrate the P3 with the K2? I realize that some of the features of the P3 + K3 pair will probably not be available, but will the basic P3 work with the K2 to display band scope type information?Also, when this P3 feature someday becomes available, will the P3 display RF envelope (TX output) waveforms when using it with a K2? Has anyone done this, and if so, what issues were encountered? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FW: RE: Decisions, Decisions buy a K2 or wait for a KX3??
On Sun Apr 29 at 0943 EDT Joe McGerald AF6NI wrote (on the Elecraft K3 Reflector) ... ... I am looking forward to the building process, so that speaks for the K2. ... What are your thoughts? -- Joe, Only you can answer this question. I can offer a few thoughts for you to consider, but before I do ... if you were to build a K2, then I suggest that you purchase a Rework Eliminator(TM) K2 Option Bypass Headers kit, and perhaps also a Rework Eliminator(TM) Internal Mic Adaptor. See http://www.unpcbs.com/ for details. --- - - - --- Now then, some factors to consider in your decision making process might be ... 1) Do you prefer the latest technology which will continue to develop for years to come via firmware upgrades? Or the nostalgia of through-hole construction? 2) A pro for the K2 is the building experience plus the fact that you can repair and upgrade it yourself. (BTW, this is where the Rework Eliminator(TM) Headers are worth their weight in gold!) 3) Pros for the KX3 are no doubt functionality, features, portability, and probably also value, including resale value. (I'm guessing the two radios are probably about even with regard to RX power consumption.) 4) As far the value of the K2 is concerned, the bare kit is still a bargain; whereas a fully loaded K2 is difficult to justify. UNLESS the building experience is one of your most important criteria! 5) One last thing to consider is that the KX3 will certainly be around for many years to come, whereas your opportunity to purchase a K2 is probably measured in months at this point. 73, Gary KI4GGX K2 #4067 unpcbs.com webmaster P.S. From the looks of your shack (on qrz.com) it would appear that you don't need another radio. That fact ought to also figure into your decision process. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] An all-K3 DXpedition to Yemen imminent
Well, mostly all: http://www.yemen2012.com/plans.php John AE5X http://www.ae5x.com/blog __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] BFO resets itself after cal fil (K2)
Hi all, I decided to recalibrate the filters in my K2 because I noticed a small RX-TX frequency difference which made it hard to use my NUE-PSK. But I didn't get the calibration working... I enter filter calibration menu. I select FL1 in open-mode. I adjust (in RX) the BFO and watch the audio move on the waterfall (change pitch). All seems 100% OK. Then I press XFIL to save the value. (the freq-probe is in TP2 - duoble checked). When I then return to FL1 the pitch is back where it was from the start. I first thaught that the value did not get saved, but after re-checking the BFO-D/A value it has been saved. I then tried to measure U8 pin 16 to see if the control voltage is changing - yes it is. The voltage changes when I change the BFO-D/A value in cal filter. The value I choose will be saved and I can measure the same voltage when I return to FL1. But the BFO keeps resetting itself no matter what value I choose in cal filter. The most strange thing is that the BFO changes as long as I am in cal filter menu, it resets itself when I change filter (saving the value) I had the SSB option in, but in the troubleshooting I removed it. The behavior is still the same with or without the SSB option plugged in. So... Can anyone give me a clue what's going on here? Tnx in advance and 73 de SM0RVV ./Erik __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Besides my earlier direct email to you Greg, changing the sb-220 120v FT supply to a FWB rectifier and replace the C4 electrolytic with a 200uF to 320 uF works very well at speeding up the existing relay. The much larger capacitor can be sourced from a good one from the HV capacitor bank when replacing bad units. The FT supply handles the much larger capacitance with no issue. Circuit see right side :http://www.somis.org/add-160m-d.jpg I have 3 sb-220's here, One has a AG6K qsk kit fitted which works very well. They all have FWB rectifier (relay)supplies and 450v/320uF electrolytic's which fit snug between the deck base and lower side rail @ 35mm diameter. Just silicone in place. Adrian ... vk4tux NB; FT = Filament transformer __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PR-6 issue when QRO
Gregg, I can only comment that I have exactly the same setup on 6 with PR 6 and a W1QJ sb-220, and have never had any issue. The PR6 is connected to K3 acc output for programmed band dependant switching etc as per manual; The PR6 can be connected directly to the RX ANT IN/OUT jacks on the K3's KXV3 module (required), where it can be switched in automatically by the transceiver when operating on 6 meters. A second pair of jacks is provided on the opposite side of the PR6 to allow use of the K3's normal RX ANT IN/OUT signal path when the preamp is not in use. Power for the PR6 can be obtained from any 11 to 14 VDC supply. When used with a K3, the PR6 can be powered from the 12 VDC accessory output. It can be strapped permanently ON, or it can be turned on/off externally from an open-source/open-drain logic signal. In the K3 case, the DIGOUT1 control line can be used (on the 15-pin ACC jack), since it is stored on a per-band basis. The antenna is a InnovAntenna 7EL LFA yagi and there is no feedline radiation. There is a coax choke wound near the loop termination.. As the PR6 circuit is only utilised during RX , I can only think you have a feedline radiation issue or similar. My PR-6 12v line connects to a large electrolytic capacitor where a stiff 15v supply cable for the K3 passes through to the K3 APP connectors. So the input is well protected by spikes etc. That may be worth considering re: capacitor? Adrian ... vk4tux -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregg Marco W6IZT Sent: Sunday, 29 April 2012 10:55 PM To: 'elecraft' Subject: [Elecraft] PR-6 issue when QRO I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. Any ideas? 73 Gregg W6IZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ANT 1-2 isolation
You are getting some really worse numbers than I did. You may have ant2 only terminated on one end of its cable connections, which would be really worse on 6 meters than 160. There is one of those bitty jacks that needs a cable attached to it and then terminated. It's the other antenna connection that allows you to listen on whichever of ANT1/2 the TX is NOT using. Out on Core Banks, NC, we were using doublets at right angles on the same pole to ANT1 and ANT2, receiving with diversity. There was 30 dB separation with the two antennas hanging on the same pole. How much better does it have to be inside the K3? You need to terminate the internal K3 connection of ANT2 when you make the measurement. Also the shields of both cable connections at both ends need to be grounded as well as terminated. 73, Guy. On Sun, Apr 29, 2012 at 9:28 AM, Mike Harris mike.har...@cwimail.fk wrote: Interesting. I looked at it from the other direction. With the K3 ANT1 connected to a dummy load and ANT2 connected also to a dummy load via my WM-2 QRP wattmeter. With 100W out at ANT1, out of ANT2 I measured 30mW at 50MHz down to 1mW at 7.1MHz. A range of -30dB to -50dB. 50MHz is not in the WM-2 spec, however, 25mW was measured at 28.2MHz which gives -36dB. There are obviously potential measurement errors there so no one needs to take it as absolute. Perhaps someone with access to precision equipment could also do the test. Regards, Mike VP8NO On 28/04/2012 12:27, Mark - G4AXX wrote: The isolation between ANT 1 and ANT 2 varies from -76dB at 1.8MHz to -46dB at 50MHz. This is measured with a signal generator, using the K3 S-meter, with ANT 2, AUX RF and RX ANT IN terminated in 50 Ohms. http://elecraft.365791.n2.nabble.com/file/n7509068/ANT1-2_leakage.jpg The isolation between AUX RF and ANT 1/2 is95dB (1-30MHz), rising to -70dB (52MHz). This was measured with an N2PK VNA. I have tried to dress the unscreened wires from ANT 1 2 to the ATU in a way to minimise coupling, but the coupling is dominated by the capacitance of relays K18 K19. Using ANT1/2 for Diversity reception means the receivers are never truly independent. There is likely to be more coupling inside the K3 than can usually be achieved by physical separation of the antennas. Operating Diversity reception with the SUB RX fed from the AUX RF BNC input is the way to go. 73 Mark G4AXX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
The TR relay has been replaced by a TR switch that Dick, K5AND designed that uses Schrack relays that are spec'd to switch in 8 msec. Is the K5AND TR Switch design documented anywhere? Does it use a single relay or multiple relays? Is there any chance that the input replay is dropping out while the SB-200 is still making RF? Do you have any separate receive antennas connected to the bypass ports on the PR6? Do the receive antennas have a front end saver inline? Short of a problem elsewhere, I do not see how 6 meter RF from the amplifier can get back through the K3 T/R switch, HPA and LPA to even get to the PR6. 73, ... Joe, W4TV On 4/29/2012 11:56 AM, Gregg Marco W6IZT wrote: Joe: It is a 6m only amp. Yes, the K3 is set to bypass the PR6 when on HF. The TR relay has been replaced by a TR switch that Dick, K5AND designed that uses Schrack relays that are spec'd to switch in 8 msec. 73 Gregg -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, April 29, 2012 11:34 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] PR-6 issue when QRO Greg, Is that SB-200 a modified for 6 meters only amplifier, one that has six meters added to the HF bands or is the problem happening when operating on HF bands? Is the K3/PR6 configured to bypass and turn the PR6 off when operating on HF? 73, ... Joe, W4TV On 4/29/2012 11:10 AM, Gregg Marco W6IZT wrote: Don: I have replaced the open frame relay with Schrack relays 73 Gregg -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, April 29, 2012 10:12 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 no RF ouput
Hi Todd, I experienced the same problem in the field a few months ago. It turned out to be a connection problem between the 10w PA and the main pcb. Removing and re-seating the 10w PA module fixed the problem. Andy -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-no-RF-ouput-tp7511071p7511699.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - background hiss
Yup. Great big clue there :) 73, Guy. On Sun, Apr 29, 2012 at 1:19 PM, John Chappell G3XRJ j...@g3xrj.com wrote: My receiver is fabulously quiet with the AGC off. 73 John G3XRJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] An all-K3 DXpedition to Yemen imminent
The operation will get started at 21:00Z on April 30 and will go on until 21:00Z May 15. There are 11 operators on Socotra right now with more to join them later and some leave on earlier dates. John AE5X http://www.ae5x.com/blog __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BFO resets itself after cal fil (K2)
Erik, Do you see the BFO frequency flashed on the display when you exit? If so, you are verifying that the value is being saved. Fact, the DAC resolution in the K2 is about 20 Hz. If the difference is less than 20 Hz, it my be a situation you have to live with - you have reached the limit. Are you using SSB or the RTTY filter set? If so, there should be no difference in the VFO between RX and TX. If you are listening with a filter other than FL1, then yes the BFO will be switched to FL1 for TX. If your goal is no difference between TX and RX, then you will have to RX with FL1 If you use an RX filter different than FL1, you will have to unlock TX and RX in your software to keep from walking the band. Most packages allow that - I don't know about the NUE-PSK, but II would think that is a required condition. 73, Don W3FPR On 4/29/2012 3:28 PM, Erik Linder wrote: Hi all, I decided to recalibrate the filters in my K2 because I noticed a small RX-TX frequency difference which made it hard to use my NUE-PSK. But I didn't get the calibration working... I enter filter calibration menu. I select FL1 in open-mode. I adjust (in RX) the BFO and watch the audio move on the waterfall (change pitch). All seems 100% OK. Then I press XFIL to save the value. (the freq-probe is in TP2 - duoble checked). When I then return to FL1 the pitch is back where it was from the start. I first thaught that the value did not get saved, but after re-checking the BFO-D/A value it has been saved. I then tried to measure U8 pin 16 to see if the control voltage is changing - yes it is. The voltage changes when I change the BFO-D/A value in cal filter. The value I choose will be saved and I can measure the same voltage when I return to FL1. But the BFO keeps resetting itself no matter what value I choose in cal filter. The most strange thing is that the BFO changes as long as I am in cal filter menu, it resets itself when I change filter (saving the value) I had the SSB option in, but in the troubleshooting I removed it. The behavior is still the same with or without the SSB option plugged in. So... Can anyone give me a clue what's going on here? Tnx in advance and 73 de SM0RVV ./Erik __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
It has me stumped too Joe. The TR switch uses two SPDT Tyco/Schrack relays. Dick layed out the PC board. He has used it in several amps that he has built. Is it possible that one of the relays is dropping out early? Maybe. Nothing else is connected to the PR6. I thought about the RX antennas, but they were not connected to the PR6. My RX antennas are disconnected from the K3 and grounded during TX using the key out as the control line. -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Sunday, April 29, 2012 4:06 PM To: Gregg Marco W6IZT; Elecraft Reflector Subject: Re: [Elecraft] PR-6 issue when QRO The TR relay has been replaced by a TR switch that Dick, K5AND designed that uses Schrack relays that are spec'd to switch in 8 msec. Is the K5AND TR Switch design documented anywhere? Does it use a single relay or multiple relays? Is there any chance that the input replay is dropping out while the SB-200 is still making RF? Do you have any separate receive antennas connected to the bypass ports on the PR6? Do the receive antennas have a front end saver inline? Short of a problem elsewhere, I do not see how 6 meter RF from the amplifier can get back through the K3 T/R switch, HPA and LPA to even get to the PR6. 73, ... Joe, W4TV On 4/29/2012 11:56 AM, Gregg Marco W6IZT wrote: Joe: It is a 6m only amp. Yes, the K3 is set to bypass the PR6 when on HF. The TR relay has been replaced by a TR switch that Dick, K5AND designed that uses Schrack relays that are spec'd to switch in 8 msec. 73 Gregg -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, April 29, 2012 11:34 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] PR-6 issue when QRO Greg, Is that SB-200 a modified for 6 meters only amplifier, one that has six meters added to the HF bands or is the problem happening when operating on HF bands? Is the K3/PR6 configured to bypass and turn the PR6 off when operating on HF? 73, ... Joe, W4TV On 4/29/2012 11:10 AM, Gregg Marco W6IZT wrote: Don: I have replaced the open frame relay with Schrack relays 73 Gregg -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, April 29, 2012 10:12 AM To: Gregg Marco W6IZT Cc: 'elecraft' Subject: Re: [Elecraft] PR-6 issue when QRO Gregg, Unless you have changed the open frame relay in the SB-220, it will take at least 15 ms to switch and be clear of the contact bounce. I would suggest you change the stock relay for something faster. 73, Don W3FPR On 4/29/2012 8:55 AM, Gregg Marco W6IZT wrote: I use my K3 on 6 meters with a concerted SB-220. When using the PR6 connected to the KXV3 as intended and using the amp, the GaAs FET is destroyed immediately. My work around was to employ an external TR relay on the K3 to switch TX RX, connecting the PR6 to the RX side of the relay and to the RX input of the KXV3.Using this arrangement has worked fine for the past few years. With E skip season approaching I thought that I would try to resolve this problem and get rid of the extra RF plumbing. My initial thought was the TR relay in the amp might be too slow and RF was being reflected back into the K3 during the transition from TX to RX. After looking at the K3 block diagram I doubt that this is the case as the PR-6 should be switched out of the circuit well before any RF is present at the output. For reference the TR relays in the amp are spec'ed at 8 msec to switch and the K3 is set at 8 msec TX delay, which I believe is the default. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BFO resets itself after cal fil (K2)
Don, tnx for the answer. Yes, the difference was small. Tnx for the info about 20 Hz, then I now the limitation of the construction. Yes I can use the FL1 (open) as both TX and RX (well of course TX is alway using FL1). But if I want something more narrow I like to use FL2 - FL4. And now I know that I can get in 20 or so Hz if I work hard enough. :-) But the main problem here is that I cannot adjust my filters at all right now. :-( I can move the BFO (change the pitch) as long as I am in cal fil but as soon as I save the filter and return to listen the pitch has changed to default. The BFO-value _has_ changed, it _has_ been saved. (I see the display showing BFO freq for a short time). But still - the pitch is where it was before I changed the BFO-value. And I have changed it much - like 50 to 100 units. USB, LSB, CW - the mode does no difference. So: Received pitch of the signal transmitted from my 2:nd TRX: 1500 Hz The BFO value is (lets say) 128 I change the BFO value too 100 I hear (and see on the waterfall) that the pitch is changing. I press XFIL (to save) Display shows BFO freq for a short time. I press XFIL a couple of times to get round to FL1 again. The pitch has now jumped back to 1500 The BFO-value is at it's saved 100 I can now lower the BFO value once more and when I come around the pitch will be 1500 and the BFO is saved with the new value. Isn't it suppose to work like: Change the BFO to get the correct pitch Save Return to the filter and the pitch is where you programmed it to be. 73 de SM0RVV ./Erik 2012/4/29 Don Wilhelm w3...@embarqmail.com Erik, Do you see the BFO frequency flashed on the display when you exit? If so, you are verifying that the value is being saved. Fact, the DAC resolution in the K2 is about 20 Hz. If the difference is less than 20 Hz, it my be a situation you have to live with - you have reached the limit. Are you using SSB or the RTTY filter set? If so, there should be no difference in the VFO between RX and TX. If you are listening with a filter other than FL1, then yes the BFO will be switched to FL1 for TX. If your goal is no difference between TX and RX, then you will have to RX with FL1 If you use an RX filter different than FL1, you will have to unlock TX and RX in your software to keep from walking the band. Most packages allow that - I don't know about the NUE-PSK, but II would think that is a required condition. 73, Don W3FPR On 4/29/2012 3:28 PM, Erik Linder wrote: Hi all, I decided to recalibrate the filters in my K2 because I noticed a small RX-TX frequency difference which made it hard to use my NUE-PSK. But I didn't get the calibration working... I enter filter calibration menu. I select FL1 in open-mode. I adjust (in RX) the BFO and watch the audio move on the waterfall (change pitch). All seems 100% OK. Then I press XFIL to save the value. (the freq-probe is in TP2 - duoble checked). When I then return to FL1 the pitch is back where it was from the start. I first thaught that the value did not get saved, but after re-checking the BFO-D/A value it has been saved. I then tried to measure U8 pin 16 to see if the control voltage is changing - yes it is. The voltage changes when I change the BFO-D/A value in cal filter. The value I choose will be saved and I can measure the same voltage when I return to FL1. But the BFO keeps resetting itself no matter what value I choose in cal filter. The most strange thing is that the BFO changes as long as I am in cal filter menu, it resets itself when I change filter (saving the value) I had the SSB option in, but in the troubleshooting I removed it. The behavior is still the same with or without the SSB option plugged in. So... Can anyone give me a clue what's going on here? Tnx in advance and 73 de SM0RVV ./Erik __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@mailman.qth.**net Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BFO resets itself after cal fil (K2)
Erik, The K2 will preserve the pitch when the BFO is changed. Of course, if you move the BFO enough, the signal will no longer be inside the passband. You must move the VFO to change the pitch, just changing the BFO will not do it. The filter passband edges will change, but the pitch of a tuned signal will not. That is why it is important to use a broadband noise generator (often band noise will do) and some type of audio spectrum analyzer (I use Spectrogram) to view the shape of the passband - you can see when it is centered at your target pitch. Use no signals in the passband when changing the filters, having signals present will only confuse your view of the passband shape and positioning. If you need Spectrogram, you can find it on my website www.w3fpr.com - look near the bottom of the opening page. 73, Don W3FPR On 4/29/2012 4:40 PM, Erik Linder wrote: Don, tnx for the answer. Yes, the difference was small. Tnx for the info about 20 Hz, then I now the limitation of the construction. Yes I can use the FL1 (open) as both TX and RX (well of course TX is alway using FL1). But if I want something more narrow I like to use FL2 - FL4. And now I know that I can get in 20 or so Hz if I work hard enough. :-) But the main problem here is that I cannot adjust my filters at all right now. :-( I can move the BFO (change the pitch) as long as I am in cal fil but as soon as I save the filter and return to listen the pitch has changed to default. The BFO-value _has_ changed, it _has_ been saved. (I see the display showing BFO freq for a short time). But still - the pitch is where it was before I changed the BFO-value. And I have changed it much - like 50 to 100 units. USB, LSB, CW - the mode does no difference. So: Received pitch of the signal transmitted from my 2:nd TRX: 1500 Hz The BFO value is (lets say) 128 I change the BFO value too 100 I hear (and see on the waterfall) that the pitch is changing. I press XFIL (to save) Display shows BFO freq for a short time. I press XFIL a couple of times to get round to FL1 again. The pitch has now jumped back to 1500 The BFO-value is at it's saved 100 I can now lower the BFO value once more and when I come around the pitch will be 1500 and the BFO is saved with the new value. Isn't it suppose to work like: Change the BFO to get the correct pitch Save Return to the filter and the pitch is where you programmed it to be. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] FW: RE: Decisions, Decisions buy a K2 or wait for a KX3??
Joe, I would echo Gary's thoughts. If you order the full K2 and its accessories, then the rework isn't necessary. The microphone Internal Mic adapter is a must in my opinion. I have that unit installed in mine. The K2 is a wonderful radio. I have one fully loaded, except for the amp. I have a solid state amp that takes care of all my needs. 73, Bill K9YEQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary W. Hvizdak Sent: Sunday, April 29, 2012 1:38 PM To: elecraft@mailman.qth.net Subject: [Elecraft] FW: RE: Decisions, Decisions buy a K2 or wait for a KX3?? On Sun Apr 29 at 0943 EDT Joe McGerald AF6NI wrote (on the Elecraft K3 Reflector) ... ... I am looking forward to the building process, so that speaks for the K2. ... What are your thoughts? -- Joe, Only you can answer this question. I can offer a few thoughts for you to consider, but before I do ... if you were to build a K2, then I suggest that you purchase a Rework Eliminator(TM) K2 Option Bypass Headers kit, and perhaps also a Rework Eliminator(TM) Internal Mic Adaptor. See http://www.unpcbs.com/ for details. --- - - - --- Now then, some factors to consider in your decision making process might be ... 1) Do you prefer the latest technology which will continue to develop for years to come via firmware upgrades? Or the nostalgia of through-hole construction? 2) A pro for the K2 is the building experience plus the fact that you can repair and upgrade it yourself. (BTW, this is where the Rework Eliminator(TM) Headers are worth their weight in gold!) 3) Pros for the KX3 are no doubt functionality, features, portability, and probably also value, including resale value. (I'm guessing the two radios are probably about even with regard to RX power consumption.) 4) As far the value of the K2 is concerned, the bare kit is still a bargain; whereas a fully loaded K2 is difficult to justify. UNLESS the building experience is one of your most important criteria! 5) One last thing to consider is that the KX3 will certainly be around for many years to come, whereas your opportunity to purchase a K2 is probably measured in months at this point. 73, Gary KI4GGX K2 #4067 unpcbs.com webmaster P.S. From the looks of your shack (on qrz.com) it would appear that you don't need another radio. That fact ought to also figure into your decision process. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ANT 1-2 isolation
I thought it was clear that all I was looking at was a transmit parameter, that is, what came out of ANT2 when ANT1 was was carrying a signal. This gives an idea of the coupling across the C/O relay K18 which selects ANT1 or 2. In this context both ports were terminated. I fail to see why I should also have to terminate J43 on the KAT3, it would in effect doubly terminate the port with one termination before the wattmeter and one after. Not a satisfactory situation for the measurement. Naturally, if the Sub RX is connected to J43 that job would be being done by the input of the RX and readings might be different. I have my Sub RX either listening to the same antenna as the Main RX or to the Aux antenna port. Nothing connected to J43. The idea was to see what happens with one of a set of standard set-ups, not one where the configuration has been rigged to try and maximise a reading. If there is a real need to absolutely minimise what came out of, or into, the unused antenna port then by all means terminate J43. It's yours to do with what you like. Regards, Mike VP8NO On 29/04/2012 17:06, Guy Olinger K2AV wrote: You are getting some really worse numbers than I did. You may have ant2 only terminated on one end of its cable connections, which would be really worse on 6 meters than 160. There is one of those bitty jacks that needs a cable attached to it and then terminated. It's the other antenna connection that allows you to listen on whichever of ANT1/2 the TX is NOT using. Out on Core Banks, NC, we were using doublets at right angles on the same pole to ANT1 and ANT2, receiving with diversity. There was 30 dB separation with the two antennas hanging on the same pole. How much better does it have to be inside the K3? You need to terminate the internal K3 connection of ANT2 when you make the measurement. Also the shields of both cable connections at both ends need to be grounded as well as terminated. 73, Guy. On Sun, Apr 29, 2012 at 9:28 AM, Mike Harrismike.har...@cwimail.fk wrote: Interesting. I looked at it from the other direction. With the K3 ANT1 connected to a dummy load and ANT2 connected also to a dummy load via my WM-2 QRP wattmeter. With 100W out at ANT1, out of ANT2 I measured 30mW at 50MHz down to 1mW at 7.1MHz. A range of -30dB to -50dB. 50MHz is not in the WM-2 spec, however, 25mW was measured at 28.2MHz which gives -36dB. There are obviously potential measurement errors there so no one needs to take it as absolute. Perhaps someone with access to precision equipment could also do the test. Regards, Mike VP8NO On 28/04/2012 12:27, Mark - G4AXX wrote: The isolation between ANT 1 and ANT 2 varies from -76dB at 1.8MHz to -46dB at 50MHz. This is measured with a signal generator, using the K3 S-meter, with ANT 2, AUX RF and RX ANT IN terminated in 50 Ohms. http://elecraft.365791.n2.nabble.com/file/n7509068/ANT1-2_leakage.jpg The isolation between AUX RF and ANT 1/2 is95dB (1-30MHz), rising to -70dB (52MHz). This was measured with an N2PK VNA. I have tried to dress the unscreened wires from ANT 1 2 to the ATU in a way to minimise coupling, but the coupling is dominated by the capacitance of relays K18 K19. Using ANT1/2 for Diversity reception means the receivers are never truly independent. There is likely to be more coupling inside the K3 than can usually be achieved by physical separation of the antennas. Operating Diversity reception with the SUB RX fed from the AUX RF BNC input is the way to go. 73 Mark G4AXX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Decisions, Decisions buy a K2 or wait for a KX3??
Save more pennies - buy both! My K2 was a fun build, and I still have an option or two to add; the K2 has a long term future in my shack. And my KX3 kit is on ordercan hardly wait! geoff - W1OH On 4/29/12 9:43 AM, af6ni wrote: Well I have the money in the bank and there is not a heck of a lot of difference in the price of the K2 and KX3 so it's decision time. Do I buy a K2 or get in line for a KX3? I am looking forward to the building process, so that speaks for the K2. I imagine, even in kit form that the KX3 is not much of a challenge - just plugging in a bunch of pre-assembled boards. On the other hand the KX3 is state of the art and the K2 is over ten years old. What are your thoughts? 73. Joe -- View this message in context: http://elecraft.365791.n2.nabble.com/Decisions-Decisions-buy-a-K2-or-wait-for-a-KX3-tp7511085.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- * Geoff Allsup, W1OH gall...@whoi.edu or w...@whoi.edu Senior Engineer Upper Ocean Processes Group Woods Hole Oceanographic Institution Woods Hole, MA, USA * __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PACTOR iii
eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K4
H. I've been trying to figure out the best way of using the band switching on modern radios. In my use, it is an impediment to using different modes. Most of the time, when I switch to the 20 meter band, I arrive set up for the PSK sub-band. If I want to use CW or SSB, I have to make a bunch of changes to things like mode, filter bandwidth, frequency etc. etc. If I had been doing CW or SSB the last time I used 20 meters, I have to change them all back. Now memories let me do most of what I need, but I still haven't figured out how to organize memories for both specific things like repeater frequencies and CTCSS or net frequencies, as well as band switching in a way that I can figure out which memory holds what I want. I think if I had an array of band buttons, I would want them subservient to the current mode, so I could easily jump from 20M PSK to 40M PSK. I would also want separate modes for RTTY and each of the other digital modes. If I did much AM, I would want to separate AM and SSB. All of this is quite doable with radio firmware. There is a significant question of whether I would really like a radio that works as I described, or if I would want yet more changes. :-0 If I install the internal 2M transverter, do I get a new front panel button? What about external transverters? New FCC authorized bands? :-) More seriously, I see a possible K4 as a radical change from the K3. If we could get AtoD converters with 140+ dB dynamic range and 100 mega-samples/second, we might see a very interesting radio. If we had narrow-band VHF roofing filters, we might see an up-converting radio instead of the K3 middle conversion radio. Cheers - Bill, AE6JV On 4/28/12 at 8:37, k2vco@gmail.com (Vic K2VCO) wrote: I am not sure how Wayne will do it, but the market wants dedicated band buttons. --- Bill Frantz|The nice thing about standards| Periwinkle (408)356-8506 |is there are so many to choose| 16345 Englewood Ave www.pwpconsult.com |from. - Andrew Tanenbaum| Los Gatos, CA 95032 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
If you're the Skipper, do you have a crew, or is all that just an additional duty as we said in the military? 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 4/29/2012 4:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PACTOR iii
Pactor 3 is heavily used by the marine operators. I ran SCS pactor 3 modem with my Icom radios in the past and it was very good. Regrettably, there is still no specific cable to link up my K3 and the SCS Pactor 3 modem. To respect the intellectural right of the software developer, I would not expect 'free ware' or 'open source' from SCS. ham should be willing to share for free should not be applied here for pactor 3 which is not quite a ham product. Of course, I would not have any objection if SCS eventually let us have 'open source'. There are other digital modes for the ham community to choose and use. In fact, we can use Pactor 1 which is free but slower. We share our radio experience and knowledge within the ham community for free. However, just a statement 'ham should be willing to share for free' is just over simplied the situation. Elecraft, Icom, Yaesu and Kenwood do not 'open source' their DSP. This is nothing wrong, they need to recover their RD and protect their own intellectural right. TNX 73, Johnny VR2XMC 寄件人︰ ussv dharma ussvdha...@yahoo.com 收件人︰ elecraft@mailman.qth.net elecraft@mailman.qth.net 傳送日期︰ 2012年04月30日 (週一) 7:20 AM 主題︰ [Elecraft] PACTOR iii eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Hear Hear Whoopie somebody needed to say that!! Good on ya Joe. 73, Rick W3BI -Original Message- From: Joe Subich, W4TV Sent: Sunday, April 29, 2012 8:19 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] PACTOR iii However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Aloha: I use pactor III with both my ICOM 718 and my K3simple hook up on both xcvrs. If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA From: Johnny Siu vr2...@yahoo.com.hk To: ussv dharma ussvdha...@yahoo.com; elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, April 29, 2012 1:30 PM Subject: PACTOR iii Pactor 3 is heavily used by the marine operators. I ran SCS pactor 3 modem with my Icom radios in the past and it was very good. Regrettably, there is still no specific cable to link up my K3 and the SCS Pactor 3 modem. To respect the intellectural right of the software developer, I would not expect 'free ware' or 'open source' from SCS. ham should be willing to share for free should not be applied here for pactor 3 which is not quite a ham product. Of course, I would not have any objection if SCS eventually let us have 'open source'. There are other digital modes for the ham community to choose and use. In fact, we can use Pactor 1 which is free but slower. We share our radio experience and knowledge within the ham community for free. However, just a statement 'ham should be willing to share for free' is just over simplied the situation. Elecraft, Icom, Yaesu and Kenwood do not 'open source' their DSP. This is nothing wrong, they need to recover their RD and protect their own intellectural right. TNX 73, Johnny VR2XMC 寄件人︰ ussv dharma ussvdha...@yahoo.com 收件人︰ elecraft@mailman.qth.net elecraft@mailman.qth.net 傳送日期︰ 2012年04月30日 (週一) 7:20 AM 主題︰ [Elecraft] PACTOR iii eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Windows4P3 Status
Ok, this time the manual is correct! It can be found here: http://va2fsq.com/wp-content/uploads/2012/04/Windows4P3-Windows-Desktop-Experience-for-the-Elecraft-K3.pdf -- View this message in context: http://elecraft.365791.n2.nabble.com/Windows4P3-Status-tp7488686p7512080.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Amen! There are a lot of Yachtsmen/women who got their license for one reason and one reason alone. To keep from paying for the Sail Mail subscription. it amounts to $250/yr or about $21/month uses marine frequencies and marine type accepted equipment and the ubiquitous/infamous SCS Pactor III modem. On 04/29/2012 07:19 PM, Joe Subich, W4TV wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV -- R. Kevin Stover AC0H __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ANT 1-2 isolation
In your context the ANT1 circuit was normally terminated, one port in the transmitter, the other in an antenna. That's normal, a load on both ends. ANT2 was NOT normally terminated unless you want to treat the reactive 10 k+ Z termination of the tiny capacitance across the relay as normal. If antenna two was actually being used for something while TX on ANT2, there would be something on J43 when not in transmit. If you have a sub RX on the non-TX line, then the crossover means something, as in do I need to close the COR relay. But that now is the same as your ANT1 termination, TX on one end, ANTenna on the other, except RX on one end and antenna on the other. I could say that your method was the one rigged (as in not normal), and was devised to come up with the worst possible reading. I actually USE ANT 2 during TX on ANT 1. That's when you want to know the separation. I don't get readings as bad as yours. 73, Guy. On Sun, Apr 29, 2012 at 5:51 PM, Mike Harris mike.har...@cwimail.fk wrote: I thought it was clear that all I was looking at was a transmit parameter, that is, what came out of ANT2 when ANT1 was was carrying a signal. This gives an idea of the coupling across the C/O relay K18 which selects ANT1 or 2. In this context both ports were terminated. I fail to see why I should also have to terminate J43 on the KAT3, it would in effect doubly terminate the port with one termination before the wattmeter and one after. Not a satisfactory situation for the measurement. Naturally, if the Sub RX is connected to J43 that job would be being done by the input of the RX and readings might be different. I have my Sub RX either listening to the same antenna as the Main RX or to the Aux antenna port. Nothing connected to J43. The idea was to see what happens with one of a set of standard set-ups, not one where the configuration has been rigged to try and maximise a reading. If there is a real need to absolutely minimise what came out of, or into, the unused antenna port then by all means terminate J43. It's yours to do with what you like. Regards, Mike VP8NO On 29/04/2012 17:06, Guy Olinger K2AV wrote: You are getting some really worse numbers than I did. You may have ant2 only terminated on one end of its cable connections, which would be really worse on 6 meters than 160. There is one of those bitty jacks that needs a cable attached to it and then terminated. It's the other antenna connection that allows you to listen on whichever of ANT1/2 the TX is NOT using. Out on Core Banks, NC, we were using doublets at right angles on the same pole to ANT1 and ANT2, receiving with diversity. There was 30 dB separation with the two antennas hanging on the same pole. How much better does it have to be inside the K3? You need to terminate the internal K3 connection of ANT2 when you make the measurement. Also the shields of both cable connections at both ends need to be grounded as well as terminated. 73, Guy. On Sun, Apr 29, 2012 at 9:28 AM, Mike Harrismike.har...@cwimail.fk wrote: Interesting. I looked at it from the other direction. With the K3 ANT1 connected to a dummy load and ANT2 connected also to a dummy load via my WM-2 QRP wattmeter. With 100W out at ANT1, out of ANT2 I measured 30mW at 50MHz down to 1mW at 7.1MHz. A range of -30dB to -50dB. 50MHz is not in the WM-2 spec, however, 25mW was measured at 28.2MHz which gives -36dB. There are obviously potential measurement errors there so no one needs to take it as absolute. Perhaps someone with access to precision equipment could also do the test. Regards, Mike VP8NO On 28/04/2012 12:27, Mark - G4AXX wrote: The isolation between ANT 1 and ANT 2 varies from -76dB at 1.8MHz to -46dB at 50MHz. This is measured with a signal generator, using the K3 S-meter, with ANT 2, AUX RF and RX ANT IN terminated in 50 Ohms. http://elecraft.365791.n2.nabble.com/file/n7509068/ANT1-2_leakage.jpg The isolation between AUX RF and ANT 1/2 is95dB (1-30MHz), rising to -70dB (52MHz). This was measured with an N2PK VNA. I have tried to dress the unscreened wires from ANT 1 2 to the ATU in a way to minimise coupling, but the coupling is dominated by the capacitance of relays K18 K19. Using ANT1/2 for Diversity reception means the receivers are never truly independent. There is likely to be more coupling inside the K3 than can usually be achieved by physical separation of the antennas. Operating Diversity reception with the SUB RX fed from the AUX RF BNC input is the way to go. 73 Mark G4AXX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:
Re: [Elecraft] PACTOR iii
*Right on Joe! There other 'auto-bots' on the amateur bands also and it is most disconcerting to have a rare contact qso destroyed by the sudden appearance of an automatic generated digital mode. Gnashing teeth does not get that rare one in the log...:-( Gary * On 30 April 2012 10:19, Joe Subich, W4TV li...@subich.com wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Joe, It's my understanding that the semiautomatic stations wait until there is a connect request before transmitting, and that Pactor is bugged because it ignores existing activity on the frequency, unlike Winmor which won't transmit unless the frequency is clear. Matthew Pitts N8OHU -- On Sun, Apr 29, 2012 8:19 PM EDT Joe Subich, W4TV wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
There are a lot of Yachtsmen/women who got their license for one reason and one reason alone. To keep from paying for the Sail Mail subscription. it amounts to $250/yr or about $21/month uses marine frequencies and marine type accepted equipment and the ubiquitous/infamous SCS Pactor III modem. Most of those checkbook amateurs don't even know what other digital signals sound like. They simply turn on the computer with its pre- programmed list of nodes/frequencies and let the radio hammer away until it hits on a node that it can trigger ... causing QRM to real ham users all along the way. Of course once it finds a PACTOR III box and opens up the full bandwidth the PACTOR-bot wipes out 5 KHz in a flash. The amateur founders of SCS are among the lowest form of life in my book - along with other greats like Romeo and Don Miller. 73, ... Joe, W4TV On 4/29/2012 8:43 PM, Kevin wrote: Amen! There are a lot of Yachtsmen/women who got their license for one reason and one reason alone. To keep from paying for the Sail Mail subscription. it amounts to $250/yr or about $21/month uses marine frequencies and marine type accepted equipment and the ubiquitous/infamous SCS Pactor III modem. On 04/29/2012 07:19 PM, Joe Subich, W4TV wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Gregg, check inside the amp and see if the RF choke between the pi network and the antenna jack is OK. I was running a SB221 converted to 6 and i had a bad choke connection to ground and when going to receive it would blow the rec. pre amp. what happens when that choke fails the plate blocking cap builds up a neg charge on the pi side and has no way to discharge untill it goes to receive and it discharges through the pre amp. the choke will discharge everything from the pi network to the antenna, FWIW Ed K7WIA -- View this message in context: http://elecraft.365791.n2.nabble.com/PR-6-issue-when-QRO-tp7511705p7512096.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
That is correct on it's face, however, The Pactor III protocol allows the robot server to auto-adjust it's bandwidth/speed. It may start a session at 500Hz but if the bands in good shape with not a lot of repeat requests it's widen out to 2.5KHz all by itself. If you next to one running at 500Hz your more than likely going to get clobbered when it shifts into overdrive. All without human control. The SCS modem does have a busy channel detection capability. The Win Link admins have told their people to shut it off as it disrupts throughput. On 04/29/2012 07:49 PM, Matthew Pitts wrote: Joe, It's my understanding that the semiautomatic stations wait until there is a connect request before transmitting, and that Pactor is bugged because it ignores existing activity on the frequency, unlike Winmor which won't transmit unless the frequency is clear. Matthew Pitts N8OHU -- R. Kevin Stover AC0H __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ANT 1-2 isolation
So what you are essentially saying is the K3 has a design fault because in a perfectly normal factory configuration it is leaving a port unterminated. Maybe it is the electronic equivalent of a Persian rug. I'm not rigging anything, it's how it is right out of the box. I think the real objection here is simply that a low number is reported which is contrary to the perceived wish for the K3 to be somehow perfect. Regards, Mike VP8NO On 29/04/2012 21:47, Guy Olinger K2AV wrote: In your context the ANT1 circuit was normally terminated, one port in the transmitter, the other in an antenna. That's normal, a load on both ends. ANT2 was NOT normally terminated unless you want to treat the reactive 10 k+ Z termination of the tiny capacitance across the relay as normal. If antenna two was actually being used for something while TX on ANT2, there would be something on J43 when not in transmit. If you have a sub RX on the non-TX line, then the crossover means something, as in do I need to close the COR relay. But that now is the same as your ANT1 termination, TX on one end, ANTenna on the other, except RX on one end and antenna on the other. I could say that your method was the one rigged (as in not normal), and was devised to come up with the worst possible reading. I actually USE ANT 2 during TX on ANT 1. That's when you want to know the separation. I don't get readings as bad as yours. 73, Guy. On Sun, Apr 29, 2012 at 5:51 PM, Mike Harrismike.har...@cwimail.fk wrote: I thought it was clear that all I was looking at was a transmit parameter, that is, what came out of ANT2 when ANT1 was was carrying a signal. This gives an idea of the coupling across the C/O relay K18 which selects ANT1 or 2. In this context both ports were terminated. I fail to see why I should also have to terminate J43 on the KAT3, it would in effect doubly terminate the port with one termination before the wattmeter and one after. Not a satisfactory situation for the measurement. Naturally, if the Sub RX is connected to J43 that job would be being done by the input of the RX and readings might be different. I have my Sub RX either listening to the same antenna as the Main RX or to the Aux antenna port. Nothing connected to J43. The idea was to see what happens with one of a set of standard set-ups, not one where the configuration has been rigged to try and maximise a reading. If there is a real need to absolutely minimise what came out of, or into, the unused antenna port then by all means terminate J43. It's yours to do with what you like. Regards, Mike VP8NO On 29/04/2012 17:06, Guy Olinger K2AV wrote: You are getting some really worse numbers than I did. You may have ant2 only terminated on one end of its cable connections, which would be really worse on 6 meters than 160. There is one of those bitty jacks that needs a cable attached to it and then terminated. It's the other antenna connection that allows you to listen on whichever of ANT1/2 the TX is NOT using. Out on Core Banks, NC, we were using doublets at right angles on the same pole to ANT1 and ANT2, receiving with diversity. There was 30 dB separation with the two antennas hanging on the same pole. How much better does it have to be inside the K3? You need to terminate the internal K3 connection of ANT2 when you make the measurement. Also the shields of both cable connections at both ends need to be grounded as well as terminated. 73, Guy. On Sun, Apr 29, 2012 at 9:28 AM, Mike Harrismike.har...@cwimail.fk wrote: Interesting. I looked at it from the other direction. With the K3 ANT1 connected to a dummy load and ANT2 connected also to a dummy load via my WM-2 QRP wattmeter. With 100W out at ANT1, out of ANT2 I measured 30mW at 50MHz down to 1mW at 7.1MHz. A range of -30dB to -50dB. 50MHz is not in the WM-2 spec, however, 25mW was measured at 28.2MHz which gives -36dB. There are obviously potential measurement errors there so no one needs to take it as absolute. Perhaps someone with access to precision equipment could also do the test. Regards, Mike VP8NO On 28/04/2012 12:27, Mark - G4AXX wrote: The isolation between ANT 1 and ANT 2 varies from -76dB at 1.8MHz to -46dB at 50MHz. This is measured with a signal generator, using the K3 S-meter, with ANT 2, AUX RF and RX ANT IN terminated in 50 Ohms. http://elecraft.365791.n2.nabble.com/file/n7509068/ANT1-2_leakage.jpg The isolation between AUX RF and ANT 1/2 is95dB (1-30MHz), rising to -70dB (52MHz). This was measured with an N2PK VNA. I have tried to dress the unscreened wires from ANT 12 to the ATU in a way to minimise coupling, but the coupling is dominated by the capacitance of relays K18K19. Using ANT1/2 for Diversity reception means the receivers are never truly independent. There is likely to be more coupling inside the K3 than can usually be achieved by physical separation of the
Re: [Elecraft] PACTOR iii
It's my understanding that the semiautomatic stations wait until there is a connect request before transmitting, Semi-automatic stations will still come up on top of other traffic if they receive a connect request from a station that can't hear the other traffic (e.g. in the skip zone or the opposite direction). unlike Winmor which won't transmit unless the frequency is clear. I've heard Winmor and its cousins come up on occupied frequencies - or so close to an occupied frequency it doesn't matter. Unless/until all of the automated protocols are required to monitor their maximum band- width for *any* signal in *any* protocol, automatic and semi-automatic stations should be banned. Half of the original committee wanted to require listen before transmit protocols for all stations - including semi-automatic stations - but early PACTOR gurus knew that would cripple them and it never happened. The semi-automatic stations are more of a problem that the automatic stations ... one can avoid most of the full automatic bots by staying out of the automatic subbands but the semi-bots can pop up anywhere. 73, ... Joe, W4TV On 4/29/2012 8:49 PM, Matthew Pitts wrote: Joe, It's my understanding that the semiautomatic stations wait until there is a connect request before transmitting, and that Pactor is bugged because it ignores existing activity on the frequency, unlike Winmor which won't transmit unless the frequency is clear. Matthew Pitts N8OHU -- On Sun, Apr 29, 2012 8:19 PM EDT Joe Subich, W4TV wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Please tell me, what constitutes a clear frequency? No activity for a preselected time period? What if a DX operator goes to the John and takes 5 minutes? There are others on the frequency to say the frequency is in use until one of the digital boxes says, wait it's been 5 seconds, the frequency must be clear so I can start transmitting and ignore all those telling me it is in use! Lord knows how many times I have seen that happen and you are hoping this pacwhatever will shut up long enough that you can hear the DX. Also, just because the Pacbox doesn't hear a signal does not mean the frequency is not in use. The station on the frequency can be weak but some with antennas can hear them and BAM BRAP...BRRR. WTF. There goes that contact. I'm sorry. This unattended operation really has to be revoked until it can be controlled properly. That's my 2 cents and I am sticking by it. Tim Herrick, KQ8M Charter Member North Coast Contesters k...@kq8m.com AR-Cluster V6 kq8m.no-ip.org User Ports: 23, 7373 with local skimmer, 7374 without local skimmer Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Matthew Pitts Sent: Sunday, April 29, 2012 8:49 PM To: li...@subich.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] PACTOR iii Joe, It's my understanding that the semiautomatic stations wait until there is a connect request before transmitting, and that Pactor is bugged because it ignores existing activity on the frequency, unlike Winmor which won't transmit unless the frequency is clear. Matthew Pitts N8OHU -- On Sun, Apr 29, 2012 8:19 PM EDT Joe Subich, W4TV wrote: However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me And commercial or quasi-commercial traffic should be conducted on commercial frequencies not on top of amateur users whenever the damn PACTOR-bots decide to start transmitting. As one of the twelve who were on the ARRL committee that formulated the automatic and semi-automatic control concepts nearly 30 years ago, allowing *any* form of automatic control is one of the biggest mistakes in nearly 100 years of amateur radio - right up with phone patches in the amateur service. 73, ... Joe, W4TV On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
I guess I'm one of the unclean. I licensed 3 1/2 years ago primarily because I wanted to be able to use my vessel's SSB while making an occasional offshore passage. Now I'm a die-hard Elecraft fan with a KX1, a K2, (jonesing for a KX3) and a slowly increasing code speed. Except for those occasions when I'm offshore and use Pactor3 to post position reports, and communicate via email with family and friends, I am almost exclusively CW these days. I'm a little puzzled by the irritation with the presence of amateur Pactor3 transmissions in the Ham bands. The usual Pactor RMS frequencies seem to be well away from the commonly used CW frequencies (30m maybe an exception), and when operating CW I've never found them to be a problem. During contests, when the entire band is filled with CW ops, I can see how an op looking for a clear freq might run into QRM from sailors using Pactor modems. That's not to excuse those who fire up their modems without listening first, but normally there seems to be plenty of room for everybody. Chip AE5KA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
The problem with PACTOR III is the price of the SCS modem. Recently, I have been using the WINMOR waveform to do the very same thing with the WINLINK network. WINMOR uses your sound card for all of the heavy DSP lifting. The interface is RMS express which has a feel like Airmail. You can find everything you wanted to know, but were afraid to ask starting on the Winlink web site. 73, Barry K3NDM On 4/29/2012 7:20 PM, ussv dharma wrote: eVERY ASPECT OF HAM radio is not for all hams.I do not do jf65However that said, Pactor III is a godsend for us hams that are cruising on our boatshere in the south pacific, I can send/rec email, and get all kinds of weather charts/info to make my sailing safer. Pactor III may not be for you, but it is for me If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PR-6 issue when QRO
Ed, what happens when that choke fails the plate blocking cap builds up a neg charge on the pi side and has no way to discharge untill it goes to receive and it discharges through the pre amp. But with the PR6 one would expect that negative voltage to impact the KAT3, the lowpass filters, the PIN diode T/R switch in the KPA3, and the PIN diode T/R switch on the mainboard *before* it got to the pre-amp. There are DC paths to ground, blocking caps and several sensitive components between the antenna jack and the PR-6 that I would expect to be take the brunt of a discharge before the PR-6 was damaged. 73, ... Joe, W4TV On 4/29/2012 8:55 PM, K7WIA wrote: Gregg, check inside the amp and see if the RF choke between the pi network and the antenna jack is OK. I was running a SB221 converted to 6 and i had a bad choke connection to ground and when going to receive it would blow the rec. pre amp. what happens when that choke fails the plate blocking cap builds up a neg charge on the pi side and has no way to discharge untill it goes to receive and it discharges through the pre amp. the choke will discharge everything from the pi network to the antenna, FWIW Ed K7WIA -- View this message in context: http://elecraft.365791.n2.nabble.com/PR-6-issue-when-QRO-tp7511705p7512096.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Issue with new P3/P3SVGA firmware
I uploaded the new P3/P3SVGA firmware last night, and now I have what appears to be a minor, but annoying issue. When I first boot everything up, I have my P3 set up to display both waterfall and bandscope displays. However, the P3SVGA only shows the bandscope display. I have to turn the dual display off then back on again in order to get both displays via the P3SVGA. Also, my frequency markers on the SVGA display are reduced to a 1-pixel wide line instead of the broader green and purple markers. Is anyone else seeing this? Right now it is just a minor inconvenience, but it would be nice if this gets fixed in the next firmware version. Thanks and 73, -- Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com K3 #281, P3 #688 HRD v5.x/6.0 Test Team __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
Well, some of the irritation is brought about something you mention casually: Your using Pactor to email family and friends. Unless your family and friends are all amateurs, communicating with them was at one time not allowed. Amateurs were not allowed to communicate with non-amateurs, no matter the mode, excepting for autopatches and phone patches. None of these operations was automatic, and a licensed amateur was always in control of the transmission. This is not the case with the Pactor autobots. Secondly, and this just my opinion, there is a maritime radio service, so why don't you sailors use that to email your family and friends and transmit logs and get weather information? Since vessels have a dedicated radio service to do everything needed, why pollute the amateur bands with maritime communications? There is absolutely no need to use the amateur bands for this, especially the autoforwarding stuff. No way to justify this, except that sailors have a lot of money and influence in both Newington and D.C. 73, Scott, N9AA On 4/29/12 10:18 PM, Chip Stratton wrote: I guess I'm one of the unclean. I licensed 3 1/2 years ago primarily because I wanted to be able to use my vessel's SSB while making an occasional offshore passage. Now I'm a die-hard Elecraft fan with a KX1, a K2, (jonesing for a KX3) and a slowly increasing code speed. Except for those occasions when I'm offshore and use Pactor3 to post position reports, and communicate via email with family and friends, I am almost exclusively CW these days. I'm a little puzzled by the irritation with the presence of amateur Pactor3 transmissions in the Ham bands. The usual Pactor RMS frequencies seem to be well away from the commonly used CW frequencies (30m maybe an exception), and when operating CW I've never found them to be a problem. During contests, when the entire band is filled with CW ops, I can see how an op looking for a clear freq might run into QRM from sailors using Pactor modems. That's not to excuse those who fire up their modems without listening first, but normally there seems to be plenty of room for everybody. Chip AE5KA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
I'm a little puzzled by the irritation with the presence of amateur Pactor3 transmissions in the Ham bands. The usual Pactor RMS frequencies seem to be well away from the commonly used CW frequencies (30m maybe an exception), and when operating CW I've never found them to be a problem. They're not well away from other digital activity like traditional RTTY and some of the newer modes like JT65, etc. The automatic trash is a severe problem on 30 and 17 meters on a regular basis as well as 40 and 20 meters during RTTY contests. The point is that 90% of the traffic passed on amateur frequencies - including position reports and e-mail - belongs on commercial networks not the amateur bands. 73, ... Joe, W4TV On 4/29/2012 10:18 PM, Chip Stratton wrote: I guess I'm one of the unclean. I licensed 3 1/2 years ago primarily because I wanted to be able to use my vessel's SSB while making an occasional offshore passage. Now I'm a die-hard Elecraft fan with a KX1, a K2, (jonesing for a KX3) and a slowly increasing code speed. Except for those occasions when I'm offshore and use Pactor3 to post position reports, and communicate via email with family and friends, I am almost exclusively CW these days. I'm a little puzzled by the irritation with the presence of amateur Pactor3 transmissions in the Ham bands. The usual Pactor RMS frequencies seem to be well away from the commonly used CW frequencies (30m maybe an exception), and when operating CW I've never found them to be a problem. During contests, when the entire band is filled with CW ops, I can see how an op looking for a clear freq might run into QRM from sailors using Pactor modems. That's not to excuse those who fire up their modems without listening first, but normally there seems to be plenty of room for everybody. Chip AE5KA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
I have no dog in this hunt. However, this seems to me rather far removed from Elecraft discussions :-) 73 Gary W2CS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PACTOR iii
My philosophical negative feelings about Pactor III and other proprietary systems is that they approach the use of codes and ciphers that are prohibited in the amateur service. Amateur radio is in many ways self policing. Proprietary coding impedes that. The other thing in particular about Pactor III is that it is used to some extent to bypass commercial services available. We of course have to be careful here. The accepted National Traffic System did/does a somewhat similar thing. Details are different though in terms of automation and purpose. NTS is good advertising for amateur radio. It does have negative impact on some operations though. I do a lot of QRP fox hunting and various NTS nets have clobbered a fox from time to time. Perhaps the proprietary systems should be required to make available free software to receive their transmissions. This might be good advertising for them to allow us to see what they do and decide if we want to pay the price to transmit them. It would also allow easier enforcement of existing rules if necessary or make it clear that they are not being violated. This thread will probably end soon. That's probably a good thing because the discussion could go on for ever and is really not on topic. 73 - Mike WA8BXN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB Net results (4/29/12)
As last week, propagation was a mixed bag today. Some strong stations but a number that needed to be relayed in. We had 35 participants over a 23 minute period. One station (K6XX) checked in with a KX3. Have a great week. Here is the list of participants. Station NameQTH Rig S/N N6JWJohnCA K3 936 KF5IMA Bruce MS K2 3575 K7BRR BillAZ K3 5545 KN5LJohnTX K3 4448 NT5QDon TX K3 4179 W4RKS Jim AL K3 3618 K6XXBob CA KX3 5 KA0NCR Arnie NE K3 185 K5UXMikeLA K3 6331 N1YXIgorMA K3 4653 NZ0TBillKS K3 1502 W4PFM PaulVA K3 1673 W0FMTerry MO K3 474 NJ6LNeilKY K2 7177 W0CZKen ND K3 457 K7DDM Dan MT K2 6324 AE7PM JohnOR K3 6039 WB9JNZ EricIL K3 4017 N4LAToddNC K3 5331 K5RPD JJ AR K3 6303 N6DBRebar CA K3 3680 AB7CE Roy MT K2 40 QRP KE5VDT Roger TX K3 6054 KB7VMS Ray WA K3 3298 K4GCJ Gerry NC K3 1597 WV5IDwayne TX K3 5287 K0JWC Jim MN K3 3447 W0JXDennis OH K3 3481 KB3AAY Ron MD K3 3747 AE6RH Ron CA K3 1997 N8SBE DaveMI K3 3104 WO1IDickMA K3 911 NA6ZDon CA K3 5495 W5ETJ GaryTX K3 3227 NS7PPhilOR K3 1826 73, Phil, NS7P ph...@riousa.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] (no subject)
K3BI I would have thought one such as yourself on arrl, etc...would know that pactor/winlink does not allow any commerical type traffic. That is relegated to sailmail and marine frequencies. If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Kit Shipping Schedule Theory
Don't forget, the initial shippings are built at Elecraft, and they go out as they're built. One the kits start going out it's logical that they will go out much more quickly Sent from my iPhone On Apr 29, 2012, at 10:48 AM, AB5N 7000...@gmail.com wrote: Fred- Thanks for the laugh! Very insightful. And thanks for the other comments too. I realize conjecture is useless, but somehow we all do this when we are so interested in the fate of something as compelling as the KX-3. If Tom's list is only a fraction of the actual orders (and I think it might be a higher fraction than imagined), the only data one can draw from it - is that this poll of existing orders does represent the /relative ratio/ of kit to factory orders. (a 10% random polling sampling gives over 95% accuracy) We can also see that it seems that no orders have been shipped for a week. Also, we can observe that Eric and Wayne have erred on the side of less information over more information. Whatever generates less inquiry traffic for them is best. They have been down this road before. We who are waiting just hope that production of the KX-3 will continue at some date and that eventually the object of our desire will appear on our doorstep. I can't say that ANY ham radio produced in my 5 sunspot cycles has been as tantalizing as the KX-3. I think it will be what puts Elecraft into Ham Radio history. And I certainly didn't mean to infer that the $100 price difference had an influence on not shipping kits. Obviously their company was founded on making kits and it is a winning approach. If any of we who ordered -could create such a masterpiece of engineering, we would do so. A major tip-of-the-hat to Eric and Wayne for achieving this level of design excellence. Bob-AB5N -- View this message in context: http://elecraft.365791.n2.nabble.com/Kit-Shipping-Schedule-Theory-tp7509170p7511527.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
