[Elecraft] UK Elecraft Net
Hi all, Please be aware that because of the WPX contest this weekend it has been decided to cancel this weeks net. The net will be on again next Sunday (4th April) as normal. 73 and good luck in the contest :) Ian -- Ian J Maude, G0VGS SysOp GB7MBC HB9DRV-9 DX Clusters Member RSGB, GQRP 9838, FISTS 14077 | K3 #455 http://www.amateurradiotraining.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KBPF3
Maybe I've missed it or forgotten where it was but is it documented somewhere what the RX performance is with and without the KBPF3? I've seen where it says that you get 500Khz-30Mhz and 48-54Mhz but it then says KBPF3 required for general coverage But how wide are the ham band filters and what all are the gaps that one are looking at missing. I really never went and played outside the ham bands on the Kenwood TS-450Sat that I was borrowing for a while when I was saving up for a K3... So I wonder what I'm missing out there and figured this would make a fun K3 related thread that many would have fun sharing in. ~Brett __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
I find this (that there must always be ground continuity across and isolation transformer, and that one end of the secondary must be connected to neutral) unlikely. There are at least five circumstances in which this doesn't apply under UK regulations, and I am pretty sure that the same situations apply in the USA. The first is Separated Extra Low Voltage (SELV - e.g. the common or garden wall wart). The second is the common or garden bathroom shaver socket. The third, is class IT systems, which have no earth at all, and are required in certain areas of hospitals. The fourth is special non-conducting environments, where it is physically impossible to touch more than one conductor at a time. And the fifth is environments where all exposed conductors are bonded together, but not to the supply earth. The last two are specialist cases. Jim Brown wrote: Aside from the fractured logic in this sentence, power isolation transformers, installed per NEC, do NOT isolate the green wire on one side from the green wire on the other, because code requires that ALL grounds (including all green wires, and the chassis of all equipment) be bonded together! NEC also requires that the neutral of every transformer secondary must be bonded to ground, and as noted above, all grounds must be bonded together. So the question is, what, exactly, from a grounding perspective, do you expect to gain by using an isolation transformer? -- David Woolley we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics List Guidelines http://www.elecraft.com/elecraft_list_guidelines.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] OT: Internal keyer in TS-480
I have a K1, K2, K3 and TS-480SAT. I always use the internal keyers in them and find no issues with the way they key, Elecraft and Kenwood internal keyers seem very similar to me. I use Iambic B with a weight of 1 (from the K3 menu in front of me). The only radios that I've had an issue with were the FT-857D which lacks a decent internal keyer and a TS-570 which had a keyer timing issue - Kenwood knew about the 570 keying issue for some time prior to mine being manufactured but still produced defective radios needing a return to the importer to have it updated... I use a Palm Mini paddle for portable operating and used their Code Cube keyer with the FT-857D, however the Code Cube is not used, or needed, with my current Elecraft or TS-480 radios. 73 Dave, G4AON SNIP Is this just a matter of different operators having different keyer preferences, or is there something unusual about the Kenwood internal keyer? Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Guy Olinger criticism...
John, I think you may owe Guy an apology. He's agreeing with you on how good the K2 tuner is and how others may not fare as well. I don't see any criticism of your comments at all. 73, Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Ragle Sent: Friday, March 26, 2010 8:26 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Guy Olinger criticism... I don't exactly know what set this guy off, but I know what my antennas are doing because I use a vector network analyzer on them. I was simply comparing the K2's tuner with a couple of other tuners I've used. My points were (a) the KAT2 tuner is very good/outstanding for a switcher that uses discretized components, (b) an external tuner subtracts from the portability of the K2 or K3, and (c) the discretized components in the F3K are chosen for the low-frequency bands and don't work at all for 10 or 6 if one is trying to match a hi-Q antenna structure, which may be not too far from 50+0i at its resonant frequency. Dr. J. L. Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] OT: Internal keyer in TS-480
G'day, I use mode B in both my K2 and K3. However, If I try to use mode B with my microHAM CW KEYER I usually end up messing it up and when you mess up you worry about messing up so mess up even more! At this point I give up. Fortunately the K3 enables me to plug in both but I lose the message interrupt facility from the paddles when plugged into the external keyer. Regards, Mike VP8NO - Original Message - From: Nathan Edson nedsonj...@gmail.com To: n...@cds1.net Cc: elecraft@mailman.qth.net Sent: Saturday, March 27, 2010 1:26 AM Subject: Re: [Elecraft] OT: Internal keyer in TS-480 Most newer rigs only offer iambic type B keying while many operators prefer type A. I would guess this is the reason the article mentioned including an external keyer. Nathan, KO6U Type A Guy __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
Dave, An isolation transformer *does* isolate the neutral (and the hot), but does *not* isolate the green wire ground - and for safety, it should not. 73, Don W3FPR David Woolley (E.L) wrote: I find this (that there must always be ground continuity across and isolation transformer, and that one end of the secondary must be connected to neutral) unlikely. There are at least five circumstances __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calibrate TX Gain error
Good Morning: I just ran the TX gain calibration and it fails on 29 MHz at both the 5 and 50 watt power levels indicating an SWR of 2.1:1. I checked the SWR manually and indeed it is indicated at approximately 2:1 at 29 MHz. I manually checked all bands and 24.9 MHz is indicating an SWR of 1.6:1. On all of the other bands the SWR is 1:1 with the tuner in bypass. I am using a load good up to 3 GHz. I have swept the load and the cable that I am using and the RL is better than -40 dB throughout the HF and VHF spectrum. It seems to me that all this points to the lowpass filter in the K3 for 12/10 meters. I can do a physical check for a bad cap or cold solder joint and it looks like I can sweep the filter by opening W3 and sweeping into a load connected to the antenna connector. Before I do this I wanted to confirm if anyone else has seen this problem and if so, what was the root cause? Thanks in advance for your assistance. 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] Calibrate TX Gain error
Gregg, at one time I had this problem with bandpass tuning on 40 meters. I would get in touch with K3 support for guidance on touching up bandpass filter tuning. I don't believe I've ever seen tuning instructions that published for a K3. They told me what to turn and in what order to flatten it out, though some might want to send the radio in to have that aligned. There was nothing missing, burned, shorted or open on my unit. It has remained tuned since then. 73, Guy. On Sat, Mar 27, 2010 at 9:34 AM, Gregg W6IZT w6...@bellsouth.net wrote: Good Morning: I just ran the TX gain calibration and it fails on 29 MHz at both the 5 and 50 watt power levels indicating an SWR of 2.1:1. I checked the SWR manually and indeed it is indicated at approximately 2:1 at 29 MHz. I manually checked all bands and 24.9 MHz is indicating an SWR of 1.6:1. On all of the other bands the SWR is 1:1 with the tuner in bypass. I am using a load good up to 3 GHz. I have swept the load and the cable that I am using and the RL is better than -40 dB throughout the HF and VHF spectrum. It seems to me that all this points to the lowpass filter in the K3 for 12/10 meters. I can do a physical check for a bad cap or cold solder joint and it looks like I can sweep the filter by opening W3 and sweeping into a load connected to the antenna connector. Before I do this I wanted to confirm if anyone else has seen this problem and if so, what was the root cause? Thanks in advance for your assistance. 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
[Elecraft] (OT) american made
Are the elecraft boards American made? I had a ham friend tell me they were not. But he does not know anything about elecraft. Plus he is telling me I would be better off to buy a $1400 kenwood that had everything. I think the quality and support of elecraft is far best of any radio out there. I am sticking with the K3/100 when I order it. 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] (OT) american made (not OT)
First, I don't believe this is off topic. Second, I believe Wayne has stated before the boards are made 'just down the road' from Elcraft's Aptos HQ. Third - imho the K3 is a far better rig - but then I'm biased. 73 de M0XDF, K3 #174 -- It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err. -Mohandas K. Gandhi (1869-1948) On 27 Mar 2010, at 15:53, Chris Hembree wrote: Are the elecraft boards American made? I had a ham friend tell me they were not. But he does not know anything about elecraft. Plus he is telling me I would be better off to buy a $1400 kenwood that had everything. I think the quality and support of elecraft is far best of any radio out there. I am sticking with the K3/100 when I order it. 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] K3 receiver gain problem
I am playing in the contest today. I have had two instances where my receiver gain has gone down dramatically. It sounds like I have switched to the second antenna with nothing attached. Engaging PTT brings it back. I installed the second receiver and DVR a week ago. Has been working fine until today. The problem is not reproducible. Happens on its own schedule. K3/100 #1248 FW 3.79 No modifications Any magic out there, or do I wait for Elecraft to wake up Monday? Ron W3ZV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and AM RX [explanation]
When tuning across an AM station there are clicks and cracks, seems to be on even kHz. On my radio it has been from day one. Is this normal or is my radio faulty? I use latest FW. / Jim Jim, When tuning near a very strong continuous carrier, you may hear a small AF artifact at points where the PLL divider switches. This occurs at different intervals depending on the band. On 20 meters the interval averages about 15 kHz. We minimize the effect by introducing a small amount of DSP limiting during the switching window (~10 ms). This is not avoidable with the present synth design, which was optimized for extremely low phase noise. There are two contributing factors. First, we follow the DDS with a very narrow crystal filter to dramatically clean up this signal; frequency shifts through the filter are subject to a small amount of group delay. (Other rigs using DDS use either no filtering, or very wide filtering, leaving them susceptible to DDS spurs.) Second, the VCO control bandwidth is low, improving close-in phase noise, but again causing a small re-lock delay when the PLL dividers are switched. (Most rigs use a wider VCO control bandwidth, and thus suffer from greater phase noise at small offsets that are important to ham operation, i.e. 2 kHz from the carrier.) We feel that this was the right design tradeoff, and I think most customers would agree. Dynamic range is greatly improved with a low- noise synthesizer, both on transmit and receive. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calibrate TX Gain error
Thanks Guy. Cc'd support 73 Gregg -Original Message- From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger K2AV Sent: Saturday, March 27, 2010 10:29 AM To: Gregg W6IZT Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Calibrate TX Gain error Gregg, at one time I had this problem with bandpass tuning on 40 meters. I would get in touch with K3 support for guidance on touching up bandpass filter tuning. I don't believe I've ever seen tuning instructions that published for a K3. They told me what to turn and in what order to flatten it out, though some might want to send the radio in to have that aligned. There was nothing missing, burned, shorted or open on my unit. It has remained tuned since then. 73, Guy. On Sat, Mar 27, 2010 at 9:34 AM, Gregg W6IZT w6...@bellsouth.net wrote: Good Morning: I just ran the TX gain calibration and it fails on 29 MHz at both the 5 and 50 watt power levels indicating an SWR of 2.1:1. I checked the SWR manually and indeed it is indicated at approximately 2:1 at 29 MHz. I manually checked all bands and 24.9 MHz is indicating an SWR of 1.6:1. On all of the other bands the SWR is 1:1 with the tuner in bypass. I am using a load good up to 3 GHz. I have swept the load and the cable that I am using and the RL is better than -40 dB throughout the HF and VHF spectrum. It seems to me that all this points to the lowpass filter in the K3 for 12/10 meters. I can do a physical check for a bad cap or cold solder joint and it looks like I can sweep the filter by opening W3 and sweeping into a load connected to the antenna connector. Before I do this I wanted to confirm if anyone else has seen this problem and if so, what was the root cause? Thanks in advance for your assistance. 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] (OT) american made (not OT)
Lets see if his questions about the design and operation of that $1400 Kenwood are answered by the designer. I see that Wayne has just answered a question about the K3 and tuning strong AM signals. He even answered it on a Saturday morning! Mark AD5SS On Sat, Mar 27, 2010 at 11:00 AM, David Ferrington, M0XDF m0...@alphadene.co.uk wrote: First, I don't believe this is off topic. Second, I believe Wayne has stated before the boards are made 'just down the road' from Elcraft's Aptos HQ. Third - imho the K3 is a far better rig - but then I'm biased. 73 de M0XDF, K3 #174 -- It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err. -Mohandas K. Gandhi (1869-1948) On 27 Mar 2010, at 15:53, Chris Hembree wrote: Are the elecraft boards American made? I had a ham friend tell me they were not. But he does not know anything about elecraft. Plus he is telling me I would be better off to buy a $1400 kenwood that had everything. I think the quality and support of elecraft is far best of any radio out there. I am sticking with the K3/100 when I order it. 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] (OT) american made (not OT)
Saturday afternoon here ! Elecraft's service is second to none, I've only found one other vendor to be as good and that is Dog Park Software, creators of MacLoggerDX (logging for Mac OSX and other software). :-) 73 de M0XDF, K3 #174 On 27 Mar 2010, at 16:18, Mark Bayern wrote: Lets see if his questions about the design and operation of that $1400 Kenwood are answered by the designer. I see that Wayne has just answered a question about the K3 and tuning strong AM signals. He even answered it on a Saturday morning! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) American made
Chris wrote: I am sticking with the K3/100 when I order it. Good choice Chris. Elecraft and Elecraft Support are like the Marine Corps saying: The difficult we do immediately. the impossible takes a little longer. 73, Fred, AE6IC, K3 2241 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calibrate TX Gain error
Gregg W6IZT wrote: It seems to me that all this points to the lowpass filter in the K3 for 12/10 meters. I can do a physical check for a bad cap or cold solder joint I would visually inspect the 10/12m BPF very carefully, especially looking for a bad solder joint on any toroids (i.e. enamel not allowing solder connection). I had a similar problem (60m band) and was able to scrape the enamel and resolder the toroid from the top side without removing it from the K3. 73 GL! Bill -- View this message in context: http://n2.nabble.com/Calibrate-TX-Gain-error-tp4809356p4809912.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] (OT) american made
Hi Chris, From http://n2.nabble.com/Are-K3-boards-built-overseas-tp4609367p4609378.html (a post by Lyle Johnson, an Elecraft employee) Component parts come from all over the world. Parts are placed on the PCBs, soldered, and tested all in California. 73 -- Joe KB8AP On Mar 27, 2010, at 8:53 AM, Chris Hembree wrote: Are the elecraft boards American made? ... 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 options input sought
David The onboard tuner is pretty handy and fast tuning. I have a couple 1KW size outboard manual tuners but still use the K3's often. If you don't contest much and don't plan to record off the air the KDVR3 might be overkill. Last I heard, KDVR3 won't stream rx audio to an external device such as your PC's HDD. The tuner, btw, is only useful for impedance matching. Its an L section which will not attenuate harmonics. 73 Art -- 73 Art Allison, Colorado Whether you believe you can do a thing or not, you are right. --Henry Ford. David wrote: From: david beckwith david.beckw...@att.net Subject: [Elecraft] K3 options input sought To: elecraft@mailman.qth.net Message-ID: 977804.36998...@web82101.mail.mud.yahoo.com Content-Type: text/plain; charset=iso-8859-1 I am upgrading the shack from a K2 to K3. I have a nice Palstar tuner and an ACOM amp.? I am mostly a SSB guy, not big on contests or FM.? Given these resources and needs my planned configuration for the new K3 is: K3/100? KXV3A IF Out and RX Ant.?General?coverage RX bandpass ?KDVR3-DVR? KUSB 500 Hz 5pole CW filter and 6kHz AM/ESSB 8 pole filter.? Thoughts? Am I unwise for not including the internal ATU even though I have the Palstar? Thanks and 73? Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 receiver gain problem
On 3/27/2010 9:02 AM, Ron W3ZV wrote: I am playing in the contest today. I have had two instances where my receiver gain has gone down dramatically. It sounds like I have switched to the second antenna with nothing attached. Engaging PTT brings it back. I installed the second receiver and DVR a week ago. Has been working fine until today. The problem is not reproducible. Happens on its own schedule. Often this kind of problem is caused by an intermittent poor connection somewhere in the antenna system, a dirty relay contact if you have any relays in the path, etc. As soon as you hit it with a bit of RF, it cleans up and works for a while. But in receive, the voltage is so low that it stays in high-resistance mode. Check the coax connectors, relays if any, etc. I had the exact symptom about a year ago when I had a balun with a corroded solder connection. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 receiver gain problem
Hoo boy! I know about this one. I actually sent my rig back to Elecraft for repair when it was happening to me. Imagine my chagrin when my backup rig started behaving the same way. 73 -- Joe KB8AP On Mar 27, 2010, at 10:44 AM, Vic K2VCO wrote: On 3/27/2010 9:02 AM, Ron W3ZV wrote: I am playing in the contest today. I have had two instances where my receiver gain has gone down dramatically. ... Engaging PTT brings it back. Often this kind of problem is caused by an intermittent poor connection somewhere in the antenna system, ... As soon as you hit it with a bit of RF, it cleans up and works for a while. But in receive, the voltage is so low that it stays in high-resistance mode. ... Vic, K2VCO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) American made
That motto was attributed to the SeaBees (Construction Battalion). They could kluge anything while under fire. If they were not getting shot at they got bored :) Kevin. KD5ONS (whose father navigated to more than one of their strips across the vast Pacific) -Original Message- From: Fred Atchley hamkt...@att.net Sent: Mar 27, 2010 9:48 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] (OT) American made Chris wrote: I am sticking with the K3/100 when I order it. Good choice Chris. Elecraft and Elecraft Support are like the Marine Corps saying: The difficult we do immediately. the impossible takes a little longer. 73, Fred, AE6IC, K3 2241 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 receiver gain problem
I had these symptoms (with another radio) and eventually tracked it down to a corroded junction where a saddle clamp joined parts of the linear loading wire on my short 40m beam. Dick, K6KR Sent from my iPhone On Mar 27, 2010, at 10:44 AM, Vic K2VCO v...@rakefet.com wrote: On 3/27/2010 9:02 AM, Ron W3ZV wrote: I am playing in the contest today. I have had two instances where my receiver gain has gone down dramatically. It sounds like I have switched to the second antenna with nothing attached. Engaging PTT brings it back. I installed the second receiver and DVR a week ago. Has been working fine until today. The problem is not reproducible. Happens on its own schedule. Often this kind of problem is caused by an intermittent poor connection somewhere in the antenna system, a dirty relay contact if you have any relays in the path, etc. As soon as you hit it with a bit of RF, it cleans up and works for a while. But in receive, the voltage is so low that it stays in high-resistance mode. Check the coax connectors, relays if any, etc. I had the exact symptom about a year ago when I had a balun with a corroded solder connection. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
On Sat, 27 Mar 2010 10:20:09 +, David Woolley (E.L) wrote: I find this (that there must always be ground continuity across and isolation transformer, and that one end of the secondary must be connected to neutral) unlikely. There are at least five circumstances in which this doesn't apply under UK regulations, and I am pretty sure that the same situations apply in the USA. I can't speak to UK regulations, but I am certain about those in North America. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
On Sat, 27 Mar 2010 09:32:12 -0400, Don Wilhelm wrote: An isolation transformer *does* isolate the neutral (and the hot), NO! This is a summary of NEC (National Electric Code) requirements: The NEUTRAL of a transformer on the secondary side MUST be bonded to the equipment ground (steel conduit, the green wire, building structure, etc), and that green wire must be carried from the breaker panel to each outlet and to the transformer. The neutral conductor that feeds the primary side of the transformer must be bonded to ground at the service for the building (that is, the main breaker panel). And, as we all know, all groundes must be bonded together. Thus, an isolation transformer does NOT isolate either the neutral or the equipment ground. What an isolation transformer DOES do is reduce the voltage between neutral and ground to zero. It also shortens the return path for leakage currents on the green wire -- they now return to that transformer, not to the more distant breaker panel at the service entrance. This has the potential to reduce noise current on the shield of signal cables. BUT -- the simple bonding regimen outlined in my Ham Interfacing Power Point is a MUCH less expensive AND more effective solution. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 receiver gain problem
Besides the K3 there is a long list of other possibles, but since you WERE into the cables inside the K3, if all those mini-coax connectors did not get seated correctly...I found that a little tricky and there is a certain feel to it when they go in right and seat solid. That an unrelated intermittent could occur the same weekend as a K3 upgrade is likely due to passing through a nexus of murphyite entropy, our your neighbor casting spells. Mostly it sounds like this kind of stuff that has happened to me personally over time. I'm sure the list is really much longer if we add in everyone's experience. * Connection of coax shield to dipole half was parted but still touching when it was convenient. * Connection of yagi matching device to driven element corroded and loose. * Water in barrel connector splice in feedline, getting green. * Center connection in hardline connector soldered too far down on hardline center conductor (didn't use the little spacer to do it because I couldn't find it) and cold wx would separate it at night. In the morning when sun hit it would close up. * PL259 on back of rig cross-threaded and making poor contact. * PL259 on back of rig not tightened at all. * Amp relay contacts burned by running at contest station with no delay set up for transceiver-amp keying sequence, causing hot switching. * Amp relay contacts worn out from years of QSK. * Unsoldered connection in commercial balun. * Unsoldered connection in homemade balun. (Apparently a communicable disease.) * Balun hit by lightning, odd thing that it had periods of apparently working OK. It was full of loose pieces inside. * Heathkit SB series setup. RCA plugs wore out and got loose. * Worn out T/R relays of many kinds. * Conductor in 450 window line parted inside the polyethylene due to wind flexing. * Center conductor in RG8 pulled apart due to stretching under weight of ice, would only part in coldest weather. * Incomplete crimp on BNC center conductor. * Going way back to novice days when I could barely tell difference between coax and rope, unsoldered shield and center conductors in PL259 conveniently fogotten and still in service. In most of the above, hitting the key and putting the connection under power would close the gap temporarily, for a second, an hour, a month Couple others, for fairness: * Incomplete solder joint in transceiver SMD board. Was making connection as glued, but would sometimes not make contact. Hitting transmit did nothing. Only found it with freeze spray and what amounted to a low grade microscope. It ran AOK for a long time before the trouble surfaced. * Burned transformer in TRX input due to inband power (100w+?) on the line back to the TRX in RX state. It worked part of the time. Longer I think about it the longer the upper list gets. 73 and good luck. Guy. On Sat, Mar 27, 2010 at 12:02 PM, Ron W3ZV w...@verizon.net wrote: I am playing in the contest today. I have had two instances where my receiver gain has gone down dramatically. It sounds like I have switched to the second antenna with nothing attached. Engaging PTT brings it back. I installed the second receiver and DVR a week ago. Has been working fine until today. The problem is not reproducible. Happens on its own schedule. K3/100 #1248 FW 3.79 No modifications Any magic out there, or do I wait for Elecraft to wake up Monday? Ron W3ZV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (OT) Grounding Mat
NO! This is a summary of NEC (National Electric Code) requirements: The NEUTRAL of a transformer on the secondary side MUST be bonded to the equipment ground (steel conduit, the green wire, building structure, etc), and that green wire must be carried from the breaker panel to each outlet and to the transformer. The neutral conductor that feeds the primary side of the transformer must be bonded to ground at the service for the building (that is, the main breaker panel). And, as we all know, all groundes must be bonded together. Thus, an isolation transformer does NOT isolate either the neutral or the equipment ground. I wonder when that changed? All of my isolation transformers, probably manufactured in the 70's or 80's, float the mains terminals on the load side. We used them all the time working on AC/DC radios and I still use them now working on SMPS. Only the case and safety grounds are grounded. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
But Jim, The secondary of an isolation transformer is fully isolated - i.e. floating AC. The fact that the neutral of the transformer input side is bonded to the green wire ground is quite a different thing. A proper isolation transformer has no relationship to neutral on the secondary side - only the safety ground and the voltage across the secondary winding. Remember the old AC/DC receivers that had one side of the AC line tied to the chassis! Every proper service bench had an isolation transformer during that era. 73, Don W3FPR Jim Brown wrote: On Sat, 27 Mar 2010 09:32:12 -0400, Don Wilhelm wrote: An isolation transformer *does* isolate the neutral (and the hot), NO! This is a summary of NEC (National Electric Code) requirements: The NEUTRAL of a transformer on the secondary side MUST be bonded to the equipment ground (steel conduit, the green wire, building structure, etc), and that green wire must be carried from the breaker panel to each outlet and to the transformer. The neutral conductor that feeds the primary side of the transformer must be bonded to ground at the service for the building (that is, the main breaker panel). And, as we all know, all groundes must be bonded together. Thus, an isolation transformer does NOT isolate either the neutral or the equipment ground. What an isolation transformer DOES do is reduce the voltage between neutral and ground to zero. It also shortens the return path for leakage currents on the green wire -- they now return to that transformer, not to the more distant breaker panel at the service entrance. This has the potential to reduce noise current on the shield of signal cables. BUT -- the simple bonding regimen outlined in my Ham Interfacing Power Point is a MUCH less expensive AND more effective solution. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] oscarv...@speedy.com.ar
I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
I'm planning to install a sub receiver eventually. Now I need a CW filter. I'm considering buying two now, matched, with the second for later use with the sub receiver. I understand that the 5-pole filters need to be matched, but have the impression that the 8-pole filters do not. Is that right? If so, I only need to buy one filter now. Thanks Rich NU6T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Let's all play scrabble...
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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)
Har, har, Tom... Transitive Verb: Infinitive *to discretize* Third person singular *discretizes http://en.wiktionary.org/wiki/discretizes* Simple past *discretized http://en.wiktionary.org/wiki/discretized* Past participle *discretized http://en.wiktionary.org/wiki/discretized* Present participle *discretizing http://en.wiktionary.org/wiki/discretizing* *to discretize* (/third-person singular simple present/ *discretizes http://en.wiktionary.org/wiki/discretizes*, /present participle/ *discretizing http://en.wiktionary.org/wiki/discretizing*, /simple past and past participle/ *discretized http://en.wiktionary.org/wiki/discretized*) This is not a New Age word at all. It refers to a process which has been taken from one with */continuous/* variables (variable capacitors, roller inductors) to one in which the L,C components are fixed, but relays switch from one discrete value to another, as in most automatic antenna tuners. ATUs are not discrete (can any of them keep a secret?) but rather discretized -- big difference. I think you need a new dictionary. My vocabulary training took place in a very conservative (not-quite) one-room school house many many years ago. Although we didn't use Horn Books, we did practice Palmer Penmanship (which I hated). I graduated from high school in 1950. I might add that the Fast Fourier Transform, which is so important in communications and with which you are doubtless familiar, is a species of DFT, discretized Fourier Transform, where the integral sign of a normal FT is replaced by a summation sign, and the signal is chopped up into small but finite bits. To call it a discrete FT again risks wondering about its ability to keep secrets. ;-) There doesn't seem to be a word that refers to the reverse process, but it would be something like continuous-ized if it did exist (which it doesn't, thankfully). 73, JLR == Radio Amateur N5GE wrote: On Fri, 26 Mar 2010 21:25:45 -0400, John Ragle tpcj1...@crocker.com wrote: Dr. Ragle, What does the word discretized mean? I looked in the dictionary and can't find it. Is it one of those new ized/tized words that buzz word users are so fond of now days? Wouldn't it be easier and more concise to type discrete? TOM, N5GE BT 73 ES GUD LUK AR DE N5GE SK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 cancelled
The CQ WPX contest will probably make the band conditions pretty lousy for the net tomorrow. Therefore, the net will not be run this week. We will meet again on Sunday, April 4, 2010 at 1800Z on 14.314 MHz. Have a good contest, or whatever you do. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Isolation Transfomer Bonding
This is one of those areas where the term isolation transformer can take on a different meaning and conform to a different set of compliance standards, depending on whether it's located before or after a receptacle. UL 1950 appears to allow for full isolation of the neutral on the isolation transformer's secondary where the iso-transformer is used after a receptacle. By contrast, isolation transformers used on feeder or branch circuits on the NEC side of power distribution require that neutral and ground be bonded at the transformer secondary. This is known as a separately-derived power source. When such source is created by the iso-transformer, this is the only other instance allowed by the NEC where neutral and ground are bonded beyond the Xo ground at the service entrance panel. The IEEE Emerald Book repeatedly discusses a reduction in common-mode noise when the secondary's neutral and ground are bonded. This is my take after reading applicable portions of the NEC, UL 1950 and IEEE Emerald Book (2005 Sec. 9.9.5 and 10.4.2.1). I'll concede that my thoughts on this may not be correct. Paul, W9AC - Original Message - From: Don Wilhelm w3...@embarqmail.com To: Jim Brown j...@audiosystemsgroup.com Cc: Elecraft List elecraft@mailman.qth.net Sent: Saturday, March 27, 2010 4:23 PM Subject: Re: [Elecraft] (OT) Grounding Mat But Jim, The secondary of an isolation transformer is fully isolated - i.e. floating AC. The fact that the neutral of the transformer input side is bonded to the green wire ground is quite a different thing. A proper isolation transformer has no relationship to neutral on the secondary side - only the safety ground and the voltage across the secondary winding. Remember the old AC/DC receivers that had one side of the AC line tied to the chassis! Every proper service bench had an isolation transformer during that era. 73, Don W3FPR Jim Brown wrote: On Sat, 27 Mar 2010 09:32:12 -0400, Don Wilhelm wrote: An isolation transformer *does* isolate the neutral (and the hot), NO! This is a summary of NEC (National Electric Code) requirements: The NEUTRAL of a transformer on the secondary side MUST be bonded to the equipment ground (steel conduit, the green wire, building structure, etc), and that green wire must be carried from the breaker panel to each outlet and to the transformer. The neutral conductor that feeds the primary side of the transformer must be bonded to ground at the service for the building (that is, the main breaker panel). And, as we all know, all groundes must be bonded together. Thus, an isolation transformer does NOT isolate either the neutral or the equipment ground. What an isolation transformer DOES do is reduce the voltage between neutral and ground to zero. It also shortens the return path for leakage currents on the green wire -- they now return to that transformer, not to the more distant breaker panel at the service entrance. This has the potential to reduce noise current on the shield of signal cables. BUT -- the simple bonding regimen outlined in my Ham Interfacing Power Point is a MUCH less expensive AND more effective solution. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
I understand that the 5-pole filters need to be matched, but have the impression that the 8-pole filters do not. Is that right? If so, I only need to buy one filter now The 8-pole filters are described as having a nominal 0 offset and do not need to be matched for diversity. However, my 400Hz 8-poles are offset by as much at 80Hz. The ordering page doesn't provide for matching 8-pole filters. This is only an issue for the narrow filters and only if the offset delta between the two filters is greater than 10-20Hz. If two 8-pole filters are offset, say, +60Hz and +80Hz, then you configure both for an offset of +70Hz and will be fine for diversity receive. Ed - W0YK --- Ed Muns Muns Vineyard - www.munsvineyard.com FaceBook - www.facebook.com/munsvineyard __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] oscarv...@speedy.com.ar
Oscar, Looking at the FL-2100z schematic (*** NOT *** the original FL-2100B) shows that the relay line is about +18V DC. You should be able to use Key Out directly but since there are multiple relays involved, I would recommend a buffer like the Ameritron ARB-804 or an intermediate relay for safety. Note: the original FL-2100 and FL-2100B had negative voltage on their key line and require a relay/buffer when used with the K3. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of oscarv...@speedy.com.ar Sent: Saturday, March 27, 2010 4:41 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] oscarv...@speedy.com.ar I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) Grounding Mat
On Sat, 27 Mar 2010 16:09:36 -0400, Tom W8JI wrote: NO! This is a summary of NEC (National Electric Code) requirements: The NEUTRAL of a transformer on the secondary side MUST be bonded to the equipment ground (steel conduit, the green wire, building structure, etc), and that green wire must be carried from the breaker panel to each outlet and to the transformer. The neutral conductor that feeds the primary side of the transformer must be bonded to ground at the service for the building (that is, the main breaker panel). And, as we all know, all groundes must be bonded together. Thus, an isolation transformer does NOT isolate either the neutral or the equipment ground. I wonder when that changed? All of my isolation transformers, probably manufactured in the 70's or 80's, float the mains terminals on the load side. We used them all the time working on AC/DC radios and I still use them now working on SMPS. Only the case and safety grounds are grounded. I have some UTC or Triads like that too. You can probably get away with using them on a service bench, but an electrical inspector would red tag you if you tried to install them without bonding the neutral. If I'm not mistaken, there also needs to be a breaker or fuse somewhere. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
Radio Amateur N5GE wrote: What does the word discretized mean? I always consult The World's Foremost Authority for such questions: http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277 :-) 73, Bill -- View this message in context: http://n2.nabble.com/no-subject-tp4810805p4811136.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] scopeing filters for eventual diversity receive.
On Sat, 27 Mar 2010 15:09:02 -0700, Ed Muns wrote: However, my 400Hz 8-poles are offset by as much at 80Hz. I've observed that too. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
On Sat, 27 Mar 2010 15:09:02 -0700, Ed Muns w...@msn.com wrote: I matched all of my 8 pole filters by using the NGEN noise generator and setting them for matching white noise pitch. It seemed to work for me. TOM, N5GE BT 73 ES GUD LUK AR DE N5GE SK [snip] The 8-pole filters are described as having a nominal 0 offset and do not need to be matched for diversity. However, my 400Hz 8-poles are offset by as much at 80Hz. The ordering page doesn't provide for matching 8-pole filters. This is only an issue for the narrow filters and only if the offset delta between the two filters is greater than 10-20Hz. If two 8-pole filters are offset, say, +60Hz and +80Hz, then you configure both for an offset of +70Hz and will be fine for diversity receive. Ed - W0YK [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] oscarv...@speedy.com.ar
Oscar, I don't know the specifics of your particular amplifier - BUT - The K3 KEYOUT can handle up to 200 volts DC (positive only) at 5 Amperes. You can easily measure the requirements of any amplifier with a DMM. First set it to read voltage and measure the open circuit voltage (to the amplifier ground) from your amplifier KeyIn (or PTT IN or whatever it is labeled). If that voltage is positive and less than 200 volts, check one passes. Then configure your DMM to read current. Connect the positive probe to the center conductor of the amplifier KeyIn jack and touch the negative probe to ground (that should operate the relay in the amplifier). If the current is less than 5 Amps and the voltage test succeeded, then the K3 can key that amplifier. 73, Don W3FPR oscarv...@speedy.com.ar wrote: I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
On Sat, 27 Mar 2010 15:21:07 -0800 (PST), Bill W4ZV btipp...@alum.mit.edu wrote: Interesting. It's not found in the Oxford English Dictionary, http://www.oup.com/, which I believe is the standard. It appears in Wikipedia which anyone can add content to... Thanks for the link to the Professor Irwin stuff, Bill. Sorry about the off topic thread. My email to Dr. Ragle was intended to be private, but he did not see it that way. My apologies to all. Radio Amateur N5GE wrote: What does the word discretized mean? I always consult The World's Foremost Authority for such questions: http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277 :-) 73, Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New K144XV installed
As an admitted Elecraft junkie, I just had to add the K144XV to one of my K3s to see what it would do. This K3 is now maxed out with everything you can put in this little box except for the crystal oven. Even though the instructions had construction points to assemble the K144XV, I found most of those steps were already done for me and I had to do very little in the way of assembling the K144XV itself. There was an errata sheet in the K144XV kit, but the page numbers didn't match up and I basically disregarded the errata sheet...it STILL worked. I am happily able to cruise around making QSOs on 2M now and will be ready for a VHF contest one of these days. Thanks again Elecraft for another elegant solution. I can't wait for the P3! ;-) Bob K5WA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
OK, this has caused me to consult the American Heritage Dictionary, and it defines 'discrete' as 1) Constituting a separate thing; individual; distinct. 2) Consisting of unconnected distinct parts. I believe the secret implication is caused by confusion with the adjetive 'discreet' - Having or showing a judicious reserve in one's speech or behavior. (but not necessarily 'secret'). So my study tells me that discrete is a perfectly good term for describing digital samples of a signal, they are each a separate thing - we do not have to remember 'discretized' or whatever that strange word was. 73, Don W3FPR Radio Amateur N5GE wrote: On Sat, 27 Mar 2010 15:21:07 -0800 (PST), Bill W4ZV btipp...@alum.mit.edu wrote: Interesting. It's not found in the Oxford English Dictionary, http://www.oup.com/, which I believe is the standard. It appears in Wikipedia which anyone can add content to... Thanks for the link to the Professor Irwin stuff, Bill. Sorry about the off topic thread. My email to Dr. Ragle was intended to be private, but he did not see it that way. My apologies to all. Radio Amateur N5GE wrote: What does the word discretized mean? I always consult The World's Foremost Authority for such questions: http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277 :-) 73, Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.791 / Virus Database: 271.1.1/2773 - Release Date: 03/27/10 03:32:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Hi Guys, I've never posted to this group before but I decided to put in my 2 cents regarding the Grounding Mat discussions. Seems all y'all making this way too scientific..but maybe I'm missing something For a grounding mat I simply used the anti-static bag the RF board was packaged in. I clipped my wrist strap to it until the radio grew to be a chassis. At that time I clipped the wrist strap to the chassis but kept the mat in place. All sub-assembly components were unwrapped on the mat. Hence everything was the same potential. The result: I didn't spend money on a mat I would only occasionally use and #3995 is performing flawlessly. I guess you might call it the mid-west farm boy approach, make due with what you have. Lots of smart folks on this reflector and I really enjoy the technical chatter. 73, Stan, KF4BY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] discretize...
Try using google: Results 1 - 10 of about 2,180,000 for numerical discretization. There are lots of words that are not in common lay usage but which nevertheless exist and are functional parts of the English language. Come on, guys, get a life! John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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)
discrete vs discreet -- lads, it were a joke... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Stan, Welcome to the Elecraft reflector. Your techniques may have been just fine, but only time will tell. The insidious thing about ESD is that it can partially damage components, which shortens their life. The fact that they do not fail immediately does not mean that your anti-static measures were effective. The use of both a wrist strap and an anti-static mat is highly recommended by Elecraft - what more can I say, it is like an insurance policy. Each will have to make their own decisions and take their own chances. Ask yourself how much you are willing to gamble on your K3 investment? and then you will have your individual answer to whether to invest in an anti-static mat or not. My goal is to provide prospective K3 builders with information like the above. For myself, I work on other hams gear, so I would be remiss if I did not use a good anti-static mat on the workbench. 73, Don W3FPR kf4by wrote: Hi Guys, I've never posted to this group before but I decided to put in my 2 cents regarding the Grounding Mat discussions. Seems all y'all making this way too scientific..but maybe I'm missing something For a grounding mat I simply used the anti-static bag the RF board was packaged in. I clipped my wrist strap to it until the radio grew to be a chassis. At that time I clipped the wrist strap to the chassis but kept the mat in place. All sub-assembly components were unwrapped on the mat. Hence everything was the same potential. The result: I didn't spend money on a mat I would only occasionally use and #3995 is performing flawlessly. I guess you might call it the mid-west farm boy approach, make due with what you have. Lots of smart folks on this reflector and I really enjoy the technical chatter. 73, Stan, KF4BY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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)
Differences between discrete and discretize: Latter is a transitive verb belonging to the engineering/mathematics/physics world (and perhaps beyond). It would be difficult to discrete something. To Discrete does not exist as a transitive verb. Your intent may have been to comment privately, but it didn't come out that way...all your persiflage went out on the reflector, and its intent was clearly to embarrass. Using the reflector to make fun of something you may not understand is pretty bad form, but more important than that, your sport-making interfered with a point with which I was trying to help a list participant. The point is that when one designs an automatic ATU without servos (like the old Collins AN/ART-13), one is pretty much stuck with discretized components. The ATUs for the K2/K3 are carefully designed, whereas the discrete components in some other commercial automatic ATUs are not as carefully chosen. The K3 ATU is not an option I would forgo, particularly if I were considering mobile operation. JLR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Announcement
Good Evening, Nothing like cutting, hauling, splitting, and stacking a face cord of wood to show yourself you are out of shape! Five t-shirts later I have a goodly pile of wood and have just finished dinner. The sun has set but I may be asleep before it gets dark. Luckily I have enough wood to make it to the next sunny day. I was surprised yesterday morning by about one half an inch of snow. I was working away at this computer when it grew light outside. The ground did not look quite right. I walked out onto the deck and saw snow! Good Grief! It is spring but not up here. I looked into my forecast and found another snow storm coming on Tuesday night. On further review I find they have pulled that prediction. However, I shall not cross my fingers nor hold my breath. I am ready for another month of gloom and drizzle. Propagation, on the other hand, has been most gracious. Only a little QSB to contend with but signal strength has been quite good. Now that I have a rig at my electronics/software design bench I can monitor the bands all day long. I noticed a dichotomy: folks who use voice seem to talk about their rigs and antennas far more than those who use CW. Why? The CW folks talk about all sorts of things and occasionally their rigs. I heard two guys on 17 meters SSB go on for half an hour about rigs and antennas. Luckily I was busy soldering or else I would have fallen asleep ;) I turned around and spun the dial to far lower in the band to get to the CW portion. I got two guys talking about elk and snow conditions; now that's ragchewing :) I went back to my soldering much happier. Please notice I pushed the 40 meter net one hour later than it has been lately. Now that the sun is staying up longer due to the change in season and the effect of daylight savings time coming into effect the propagation was not so hot. Moving it later should put the net after local sundown and allow for better propagation across the continent. Hopefully the folks out east will not find this time too late for their schedules. We shall see how it goes. Please join us tomorrow evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) Sunday 2200z (Sunday 3 PM PDT) 14050 kHz Monday z (Sunday 5 PM PDT) 7045 kHz Stay warm, Kevin. KD5ONS - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
See http://en.wikipedia.org/wiki/Discretized - a wonderful source of information. Alan D. Wilcox, W3DVX (K2-5373, K3-40) 570-321-1516 http://WilcoxEngineering.com Williamsport, PA 17701 Bill W4ZV wrote: Radio Amateur N5GE wrote: What does the word discretized mean? I always consult The World's Foremost Authority for such questions: http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277 :-) 73, Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] discretize...
With so many words in the English language I wonder why some of the new ones are coined. I am not an expert on FFT and higher math, but would someone please explain to me what discretize signifies that is not covered by quantize. Some definitions of quantize follow. Quantize - approximate (a signal varying continuously in amplitude) by one whose amplitude is restricted to a prescribed set of discrete values Quantization - In digital signal processing, quantization is the process of approximating (mapping) a continuous range of values (or a very large set of possible discrete values) by a relatively small (finite) set of (values which can still take on continuous range) discrete symbols or integer values. ... Just an old vacuum tube guy trying to understand the new world better David K0LUM At 9:04 PM -0400 3/27/10, John Ragle wrote: Try using google: Results 1 - 10 of about 2,180,000 for numerical discretization. There are lots of words that are not in common lay usage but which nevertheless exist and are functional parts of the English language. Come on, guys, get a life! John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] oscarv...@speedy.com.ar
Watch out using a steady-state meter to measure amplifier currents! The 2100Z is a good example of a very odd circuit. The FL2100Z has positive relay voltage. It has a peak relay closure current surge of about 500-600 mA (that settles lower) and about 16-18 volts open circuit without much backpulse. It should be good for direct keying with the Elecraft K3 if the K3 will take 5 amps. The regular FL2100 has negative relay voltage. No good on the FL2100. oscarv...@speedy.com.ar wrote: I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] oscarv...@speedy.com.ar
Tom, You are correct, peak currents are difficult for the average amateur to measure. So perhaps a rule of thumb might be that the steady-state current should be no higher than 500 ma. would be good for the K3 - I doubt that peak currents would exceed 5 A if there is only 500 ma steady-state. I realize that is a dangerous statement, because exceptions could occur, and I have no proof that a 10x safety factor is a good one. For the understanding of all (I know Tom understands this) - the peaks (both voltage and current) are important for solid state devices - many will be damaged if the peak values are exceeded even for an instant. In the days of vacuum tubes we did not worry as much about it because they could come through such peaks unscathed - solid state devices are not as forgiving. As we used to say the transistor will protect the fuse - think about that - it is often fact. 73, Don W3FPR Tom W8JI wrote: Watch out using a steady-state meter to measure amplifier currents! The 2100Z is a good example of a very odd circuit. The FL2100Z has positive relay voltage. It has a peak relay closure current surge of about 500-600 mA (that settles lower) and about 16-18 volts open circuit without much backpulse. It should be good for direct keying with the Elecraft K3 if the K3 will take 5 amps. The regular FL2100 has negative relay voltage. No good on the FL2100. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
See http://en.wikipedia.org/wiki/Discretized - a wonderful source of information. Alan D. Wilcox, W3DVX (K2-5373, K3-40) 570-321-1516 http://WilcoxEngineering.com Williamsport, PA 17701 Bill W4ZV wrote: Radio Amateur N5GE wrote: What does the word discretized mean? I always consult The World's Foremost Authority for such questions: http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277 :-) 73, Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] discretize...
On Mar 27, 2010, at 7:13 PM, David Christ wrote: I am not an expert on FFT and higher math, but would someone please explain to me what discretize signifies that is not covered by quantize. The word discrete in DFT refers to discrete time samples, and not to the quantization of the samples into finite amplitude levels. I.e., unlike the Fourier Transform, the input of a DFT is not a continuous function but defined only at discrete points, 0, T, 2T, ...(n-1)T. Although it often is used that way, the input to a forward DFT does not have to be in the time domain -- the DFT is useful for other things than just estimating the spectrum of a time series. A common example is the use of DFT to compute the discrete cepstrum of a signal. References: http://en.wikipedia.org/wiki/Discrete_Fourier_transform http://en.wikipedia.org/wiki/Cepstrum 73 Chen, W7AY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 5 watt calibration fails - help
Hello everyone, Putting together K3 SN 4094, and running into the following problem when trying to complete the 5 watt transmitter calibration procedure from within the K3 Utility. Please see text below for the response from the K3 Utility. Any thoughts? As you can see, I tried running the calibration process a few times, and each time I reached the same result - although in different places. Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz Calibrating at 5.366 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x90\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 11 seconds Starting 5 watt calibration Calibrating at 1.900 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 6 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds 73 de Al, KE1FO - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.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] 5 watt calibration fails - help
Forgot to mention in my original post, the rig was shipped with the most recent firmware already installed (MCU 3.79/DSP 2.54)*.* * *73 de Al, KE1FO - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.com. On Sat, Mar 27, 2010 at 11:28 PM, Alfred Frugoli ke...@arrl.net wrote: Hello everyone, Putting together K3 SN 4094, and running into the following problem when trying to complete the 5 watt transmitter calibration procedure from within the K3 Utility. Please see text below for the response from the K3 Utility. Any thoughts? As you can see, I tried running the calibration process a few times, and each time I reached the same result - although in different places. Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz Calibrating at 5.366 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x90\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 11 seconds Starting 5 watt calibration Calibrating at 1.900 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 6 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds 73 de Al, KE1FO - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.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] oscarv...@speedy.com.ar
Hi! Friend, Thank you very much for information I'm trying my k3 a week ago, I'm happy with this toy .- good life friend LU1XS, Oscar - Original Message - From: Tom W8JI w...@w8ji.com To: d...@w3fpr.com; oscarv...@speedy.com.ar Cc: Elecraft@mailman.qth.net Sent: Saturday, March 27, 2010 11:35 PM Subject: Re: [Elecraft] oscarv...@speedy.com.ar Watch out using a steady-state meter to measure amplifier currents! The 2100Z is a good example of a very odd circuit. The FL2100Z has positive relay voltage. It has a peak relay closure current surge of about 500-600 mA (that settles lower) and about 16-18 volts open circuit without much backpulse. It should be good for direct keying with the Elecraft K3 if the K3 will take 5 amps. The regular FL2100 has negative relay voltage. No good on the FL2100. oscarv...@speedy.com.ar wrote: I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html E-mail clasificado por el Idenfificador de Spam Inteligente. Para modificar la categoría clasificada acceda a su webmail Este mensaje ha sido verificado por el E-mail Protegido. Antivirus actualizado en 27/03/2010 / Versión: 0.95.3/10639 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 5 watt calibration fails - help
Make sure you're not in TX TEST mode ~Brett On Sat, 2010-03-27 at 23:28 -0400, Alfred Frugoli wrote: Hello everyone, Putting together K3 SN 4094, and running into the following problem when trying to complete the 5 watt transmitter calibration procedure from within the K3 Utility. Please see text below for the response from the K3 Utility. Any thoughts? As you can see, I tried running the calibration process a few times, and each time I reached the same result - although in different places. Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz Calibrating at 5.366 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x90\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 11 seconds Starting 5 watt calibration Calibrating at 1.900 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 6 seconds Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz IsSamplingComplete: Unexpected response DS1\xB0I\x80\x80; to DS; State 153 Calibration power settled at 5.2 W ; 5 watt calibration failed Elapsed time: 12 seconds 73 de Al, KE1FO - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.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] KXV144 Question
Hi, folks, I just installed the KXV144 in my K3 and all went smoothly -- it even works, after a fashion. I have this one teensy problem... ...it's not transmitting on the frequency (simplex) it says it's on. I know about setting ALT for -/+ or simplex, I've got the ADR set to internal transverter, power and all other settings are nominal and the frequency offsets for 144 and 146 Mhz are entered... ...but it still not transmitting right. What could I be overlooking? (By the way, in receives very nicely! After I get this problem solved I'll start looking down around 144 Mhz.) Many thanks! 73, Joe, W2RBA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Remote Power On/Off Ideas
If your PC has a centronics printer output, you could setup a photo-isolator switch. Then build a Free-Basic executable to toggle it from the web? There are LED-photo-isolator switches that will handle 120VAC also. Just a thought N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (OT) American made
Kevin Rock wrote: That motto was attributed to the SeaBees (Construction Battalion). They could kluge anything while under fire. If they were not getting shot at they got bored :) Kevin. KD5ONS (whose father navigated to more than one of their strips across the vast Pacific) I've heard the motto, The difficult we do immediately, the impossible will take us a day or two longer, attributed to the SeeBees, Marines, Army Rangers, Navy EOD, two Special Ops units, and my former unit, USAF 1st Combat Comm Gp. I know it applied to us, don't know about the others ;-) Fred K6DGW KEVIN: I need more time for radio, granddaughter's softball is consuming it all right now. Will be in Elk Grove CA tomorrow during ECN. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Verbification
Don Wilhelm wrote: OK, this has caused me to consult the American Heritage Dictionary, and it defines 'discrete' as 1) Constituting a separate thing; individual; distinct. 2) Consisting of unconnected distinct parts. Don't know what the problem is here, we hams have verbified, nounified, and adjectified Q-Signals since people on 75 at night would key on their 1 KW AM transmitters with a relay clang you could still hear resonating in their shack as their signal first arrived at your receiver. What's his QSX? Man, the QRM is fierce tonight You are being QRM'd by that stupid net a Kc below us Are you sure P51DX's QRG is right? Tom, you're way over Q5 tonight. OK the last one is a combination of several, especially considering that the QSA scale goes from 1-5. I presume 'way over Q5' is akin to 'bigger than infinity.' But you probably get the idea. Every time I set out to make my world-famous signature baked chicken, I start by 'discretizing' the dead bird. It makes perfect sense to me, and if Webster doesn't agree, he can go pound sand, and I don't know Oxford. I also fully understood the explanation of the turbo encabulator and don't know what the fuss is all about for that either. My wife's birthday [1 Apr] approacheth rapidly, might want to brace yourselves in the well-known Skeptic's Position and check your back for a paper fish. 73, Fred K6DGW Auburn CA Alright, it isn't world-famous but it is well-known in a small community a little north of Auburn, and I'll admit, signature is a stretch. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
