Re: [Elecraft] Possible USB 2.0 mod
Keep in mind that buying this rather than simply using a FTDI chipset based USB to RS232 cable will negate the ability to use the P3 or KPA500 properly... But I suppose this could be installed into the P3 or KPA500 instead ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 7:46 AM, Matt Zilmer mzil...@verizon.net wrote: However, this link works: http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf matt W6NIA On Fri, 21 May 2010 07:44:14 -0700, you wrote: Too bad the datasheet won't load (here, at least). matt W6NIA On Fri, 21 May 2010 10:32:48 -0400 (EDT), you wrote: I was sitting down to breakfast when I looked at my email. Seems like the questions and the answers occurred together. For all you folks looking for a USB connection look here: http://www.elektor.com/news/usb-2-0-module-to-replace-db9-rs232-connector-on.1361885.lynkx?utm_source=UKutm_medium=emailutm_campaign=news Or a shorter address to the same place: http://dbaseserver.mistermail.nl/t/838415/5034024/197744/0/ This article describes a drop in replacement to the DB9 RS-232 connection created by a local company (Hillsboro, Oregon). Maybe this will solve the dilema. 73, 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Built in USB interface for K3
Pretty much any current OS out there at the moment supports the FTDI USB-RS232 adapters out of the box... ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 6:09 AM, Don Wilhelm w3...@embarqmail.com wrote: Those making a mod of that nature to a K2 (or any other radio) take on a new responsibility. If anyone makes such a change and subsequently sells their K3, I would hope that the sale would include a CD with the latest drivers for any OS that could possibly be used with the K3. Plain RS-232 does not need drivers - USB does, and those drivers are OS dependent and OS level dependent. When you are working out in the field with your laptop and your USB K3, internet access to download new drivers may not be available. 73, Don W3FPR Allan G Duncan wrote: I don't wish to re-ignite the RS232 vs USB connectivity debates which have regularly appeared on the reflector but some K3 owners may be interested in this product recently launched by FTDI. http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 gain changes with filter selection
Have you re-run the RF-Gain calibration recently? Perhaps rerun it? Maybe the battery died in your signal generator in the middle of the last time you ran the cal? ;) ~Brett (N7MG) (Previously KC7OTG) On Sat, May 22, 2010 at 1:28 PM, Richard Haendel rhaen...@q.com wrote: I have a K3 with three filters, 2.7 KHz (FL1) , 400 Hz(FL2) and 200 Hz ( FL3) . When I reduce the bandwidth from 4.0 KHz, the radio performs as expected EXCEPT when the the different filter switches in. When I reduce the bandwidth and it switches from FL1 to FL2, the receiver gain goes up at least 12 dB. Whe I further reduce the bandwidth and the radio switches frm FL2 to FL3, the gain reduces to that of FL1. Filter gains are set at 0 dB, 1 dB and 3 dB for FL1 thru FL3. This happens in USB as well as CW. When I use FL2, I need to turn down the RF gain. What's happning? Rich W3ACO . __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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:DSP Upgrade well worth it
Hi folks I just completed the DSP upgrade board swap. I would just like to say that its well worth it. The K3 sounds much better and smoother. The first impression that you get is that the receiver sounds calm and quite. The harshness and sharp sound has mostly gone. The receiver does not sound like it has excessive bass, nor does it sound hollow or mushy.The receiver sounds very much like a very good analog receiver. It actually sounds warm, rich and very pleasing to the ears. So for those thinking about it, I would recommend that you do the upgrade. This upgrade would be especially applicable if you have very good hearing and notice all these artifacts that many have spoken about.. I have not measured anything, these are just anecdotal observations. Some people might say that these claims amount to audiophile voodoo, however I am not a ESSB freak! Anyhow I am very happy with this voodoo upgrade! 73 Craig VK3HE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Possible USB 2.0 mod
Not only will the use of such a thing negate the K3 talking to the P3 et al, it does not resolve the USB driver / OS / software problem whatsoever. This is a cool thing, but all it's doing is physically moving the same USB to RS232 converter to inside your K3 instead of between the K3 and your computer. You will still be dealing with virtual com ports and all the other problems that we all know and love with USB to RS232 converters. That said, the FTDI chip set seems to be the most compatible with later OS releases (i.e.; Vista, Win 7) but there are still software issues that may need to be resolved. 73, Bob W5OV P.S. Congrats on your new call Brett! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Sunday, May 23, 2010 1:13 AM To: mzil...@verizon.net Cc: elecraft@mailman.qth.net; Kevin Rock Subject: Re: [Elecraft] Possible USB 2.0 mod Keep in mind that buying this rather than simply using a FTDI chipset based USB to RS232 cable will negate the ability to use the P3 or KPA500 properly... But I suppose this could be installed into the P3 or KPA500 instead ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 7:46 AM, Matt Zilmer mzil...@verizon.net wrote: However, this link works: http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf matt W6NIA On Fri, 21 May 2010 07:44:14 -0700, you wrote: Too bad the datasheet won't load (here, at least). matt W6NIA On Fri, 21 May 2010 10:32:48 -0400 (EDT), you wrote: I was sitting down to breakfast when I looked at my email. Seems like the questions and the answers occurred together. For all you folks looking for a USB connection look here: http://www.elektor.com/news/usb-2-0-module-to-replace-db9-rs232-connecto r-on.1361885.lynkx?utm_source=UKutm_medium=emailutm_campaign=news Or a shorter address to the same place: http://dbaseserver.mistermail.nl/t/838415/5034024/197744/0/ This article describes a drop in replacement to the DB9 RS-232 connection created by a local company (Hillsboro, Oregon). Maybe this will solve the dilema. 73, 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
Anyone using a SEC1235 with there K3? Much RF hash? John N1JM I do. No hash at all. I did make a few mods to my unit. I enabled the fan so it runs at low speed all the time (it can still go to full speed if necessary), and I added a pair of PowerPoles to the back. Info in the Reviews section of my website at www.ad5x.com. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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:DSP Upgrade well worth it
Hi Craig, Fully confirm your impression. Seems superior and weak signals ssb/cw more readible and less agressive to my ears. Using an old Sony MDR7505 Headset Bst 73's Philippe A65BI K3#3616 Craig vk...@yahoo.com 23-05-2010 15:34 Hi folks I just completed the DSP upgrade board swap. I would just like to say that its well worth it. The K3 sounds much better and smoother. The first impression that you get is that the receiver sounds calm and quite. The harshness and sharp sound has mostly gone. The receiver does not sound like it has excessive bass, nor does it sound hollow or mushy.The receiver sounds very much like a very good analog receiver. It actually sounds warm, rich and very pleasing to the ears. So for those thinking about it, I would recommend that you do the upgrade. This upgrade would be especially applicable if you have very good hearing and notice all these artifacts that many have spoken about.. I have not measured anything, these are just anecdotal observations. Some people might say that these claims amount to audiophile voodoo, however I am not a ESSB freak! Anyhow I am very happy with this voodoo upgrade! 73 Craig VK3HE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 SSB Net Announcement
Dear Phil, I will attempt to be there, 17:45Z Philippe A65BI Phillip Shepard ph...@rio.com 22-05-2010 22:25 Hi guys, The weekly SSB net will meet tomorrow (5/23) at 1800z on 14.314 MHz. I will be net control from western Oregon. We'll try to pull in other NW stations that I can't hear. See you there. 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
I read the Eham reviews about how quiet the fan is and that it seldom even runs so I bought one. I used it to power the K3. The fan came on after about 3 minutes of receive mode operation and it was louder than anything else in the shack. I hate fans, except when I'm sleeping! The fan attempts to dischage out the bottom of the supply (strange). Also, the voltmeter stayed pegged at 15v however the voltage output was really 13.8. I had no RF hash although one time I held my AM transistor portable up close to it and it really wiped it out but so will most switchers. I unhooked the fan and ran it that way for a few weeks until one day the over temp. sensor shut it down. I also have the little MFJ switcher and it performs just as well and cost less but it too has a disgusting little fan. Finally, I went back to my Aston 35m which has no fan and helps hold down the desk. AhhhNo noise, No hashJust nice clean DC. 73 Steve N4LQ - Original Message - From: N1JM johnn...@gmail.com To: elecraft@mailman.qth.net Sent: Sunday, May 23, 2010 12:17 AM Subject: [Elecraft] Samelex Power Supplies with a K3 Anyone using a SEC1235 with there K3? Much RF hash? John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/Samelex-Power-Supplies-with-a-K3-tp5089932p5089932.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] Samelex Power Supplies with a K3
Finally, I went back to my Aston 35m which has no fan and helps hold down the desk. AhhhNo noise, No hashJust nice clean DC. I've been dealing with the same issues as I transitioned from a 20 year-old Astron RS-35 to an HP bench supply and an Astron switcher. In each case, both supplies use loud rotational fans. Recently, I've added fan speed control with a PWM controller. Instead of limiting the fan's speed through current alone, a pulse-width-modulator controls speed by producing short pulses of voltage. Speed is then controlled by the duty-cycle of the circuit's pulse train. After trying several attempts to smoothly control rotational speed with series resistors and voltage-dividers, I found several low-cost PWM kits (~ USD $20) available that accurately control speed down to slow levels without stalling. In the case of the SS-20, I created two threshold steps, one to engage when the heatsink temperature rises above a pre-determined amount. However, after adding the PWM controller and letting the idle speed rest where no noise is heard, enough air flows to keep the higher speed from kicking in, except when I key down into a load for more than a minute. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
PaulIt makes me wonder if they couldn't just put a decent heat sink on those switchers and virtually eliminate the fan or at least make it very rare to ever turn on. I realize they want to keep them small and lightweight and I guess fans are cheap and light but I sure do hate the racket they make! Steve N4LQ - Original Message - From: Paul Christensen w...@arrl.net To: elecraft@mailman.qth.net Sent: Sunday, May 23, 2010 8:40 AM Subject: Re: [Elecraft] Samelex Power Supplies with a K3 Finally, I went back to my Aston 35m which has no fan and helps hold down the desk. AhhhNo noise, No hashJust nice clean DC. I've been dealing with the same issues as I transitioned from a 20 year-old Astron RS-35 to an HP bench supply and an Astron switcher. In each case, both supplies use loud rotational fans. Recently, I've added fan speed control with a PWM controller. Instead of limiting the fan's speed through current alone, a pulse-width-modulator controls speed by producing short pulses of voltage. Speed is then controlled by the duty-cycle of the circuit's pulse train. After trying several attempts to smoothly control rotational speed with series resistors and voltage-dividers, I found several low-cost PWM kits (~ USD $20) available that accurately control speed down to slow levels without stalling. In the case of the SS-20, I created two threshold steps, one to engage when the heatsink temperature rises above a pre-determined amount. However, after adding the PWM controller and letting the idle speed rest where no noise is heard, enough air flows to keep the higher speed from kicking in, except when I key down into a load for more than a minute. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 keypad freq entry curiosity
I was in the middle of making a freq change on 40 meters when a loud signal came on so I grabbed the AF gain and found out that it will not work until after one has completed entry of the freq and tapped the AFX button. Not a big deal as this is the first time in two years of hard use that the situation has ever occurred. John - NØEVH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
Phil amp; Debbie Salas wrote: Anyone using a SEC1235 with there K3? Much RF hash? John N1JM I do. No hash at all. I did make a few mods to my unit. I enabled the fan so it runs at low speed all the time (it can still go to full speed if necessary), and I added a pair of PowerPoles to the back. Info in the Reviews section of my website at www.ad5x.com. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Phil: Some are complaing about loud fan noise. Do you have that with yours? I don't think your review mentioned fan noise as I recall. 73, John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/Samelex-Power-Supplies-with-a-K3-tp5089932p5090818.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Samelex Power Supplies with a K3
I have used one at Field Day for years. Works great no issues. If you have a problem with fan noise, put the box on the floor. You don't need it on the operating table anyway and moving it away from the radio can't hurt the rfi issues. Craig Buck k4ia On May 23, 2010, at 10:18 AM, N1JM johnn...@gmail.com wrote: Phil Debbie Salas wrote: Anyone using a SEC1235 with there K3? Much RF hash? John N1JM I do. No hash at all. I did make a few mods to my unit. I enabled the fan so it runs at low speed all the time (it can still go to full speed if necessary), and I added a pair of PowerPoles to the back. Info in the Reviews section of my website at www.ad5x.com. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Phil: Some are complaing about loud fan noise. Do you have that with yours? I don't think your review mentioned fan noise as I recall. 73, John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/Samelex-Power-Supplies-with-a-K3-tp5089932p5090818.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
I have one I bought a few months ago to go with my new K3. Works great. I do not notice any hash, and the fan noise hasn't bothered me yet (but then again I'm usually running 2 rigs, 2 power supplies and 2 amps, all at the same time. The PS fan is NOT the loudest thing in my shack by any means. 73 de Al, KE1FO K3 #3055 K3 #4094 - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.com. On Sun, May 23, 2010 at 12:17 AM, N1JM johnn...@gmail.com wrote: Anyone using a SEC1235 with there K3? Much RF hash? John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/Samelex-Power-Supplies-with-a-K3-tp5089932p5089932.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 keypad freq entry curiosity
You are absolutely right. The RF gain doesn't work in frequency entry mode either. Curiously the 4 little encoder knobs do. You can change bandwidth, mic gain and compression freely. I think it's important that the AF gain always works, so this ought to be fixed. I have had mine for two years and never noticed this. AB2TC - Knut John - N0EVH wrote: I was in the middle of making a freq change on 40 meters when a loud signal came on so I grabbed the AF gain and found out that it will not work until after one has completed entry of the freq and tapped the AFX button. Not a big deal as this is the first time in two years of hard use that the situation has ever occurred. John - NØEVH snip -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-keypad-freq-entry-curiosity-tp5090799p5090981.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:DSP Upgrade well worth it
What serial numbers does this apply to What is changed? That would be most important to people interested!!! - Original Message - From: Craig vk...@yahoo.com To: elecraft@mailman.qth.net Sent: Sunday, May 23, 2010 7:34 AM Subject: [Elecraft] K3:DSP Upgrade well worth it Hi folks I just completed the DSP upgrade board swap. I would just like to say that its well worth it. The K3 sounds much better and smoother. The first impression that you get is that the receiver sounds calm and quite. The harshness and sharp sound has mostly gone. The receiver does not sound like it has excessive bass, nor does it sound hollow or mushy.The receiver sounds very much like a very good analog receiver. It actually sounds warm, rich and very pleasing to the ears. So for those thinking about it, I would recommend that you do the upgrade. This upgrade would be especially applicable if you have very good hearing and notice all these artifacts that many have spoken about.. I have not measured anything, these are just anecdotal observations. Some people might say that these claims amount to audiophile voodoo, however I am not a ESSB freak! Anyhow I am very happy with this voodoo upgrade! 73 Craig VK3HE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Kenwood MC-60A
Is anyone using the Kenwood MC-60A on a K3 with any good audio success? Thanks. Larry, KN8N __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
I agree! I would rather have a larger, more expensive box with a big heatsink than a fan. The only fan I have ever heard that was silent was one with the blades and motor removed and destroyed. :-) Most people don't seem to notice the noise so I guess we just have to endure it as we seem to be very much the minority and manufacturers just won't spend the extra money to eliminate the fan. I have a Yaesu FT-8900R in my truck mounted enclosed in the centre console. Even with road noise at freeway speeds, I notice when its fan cuts in. Most people do not find the fan in this radio offensive and consider it quiet. I suppose I just have a high sensitivity to fan noise. From my work in the audio industry I have come to the conclusion that sound is very subjective. Each person seems to have their own idea of what sounds good and bad. I think that people get used to a certain colouration or lack of colouration and that becomes the standard to which they judge. That is why some people will praise a particular loudspeaker and others will find it offensive. My work with broadcast radio stations in parts of South America, found that the norm was to overmodulate the signals to get the loudest signal on the band. The distorted sound became the norm and people expected other sources like CD's to sound the same. The same phenomena is happening with the new flat screen TV's. They are put in stretch mode to fill the screen and people just don't seem to notice the distorted picture. I was very disappointed to see the big fan on the new KPA500. I have a KPA100 that is still not finished because I keep looking at the fan and wondering why I bought something with a fan. Eric and Wayne, would you consider a larger heatsink as an option to have a fanless KPA500? Darrell VA7TO On 2010.05.23 7:08 AM, Steve Ellington wrote: PaulIt makes me wonder if they couldn't just put a decent heat sink on those switchers and virtually eliminate the fan or at least make it very rare to ever turn on. I realize they want to keep them small and lightweight and I guess fans are cheap and light but I sure do hate the racket they make! Steve N4LQ -- Darrell Bellerive Amateur Radio Station VA7TO Grand Forks BC Canada __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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:DSP Upgrade well worth it
See http://www.elecraft.com/order_form_parts.htm#K3%20Parts Look for K3DSPUPGD 73 -- Joe KB8AP On May 23, 2010, at 8:31 AM, Tom W8JI wrote: What serial numbers does this apply to What is changed? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
On Sun, 23 May 2010 08:40:53 -0400, Paul Christensen wrote: Recently, I've added fan speed control with a PWM controller. I trust that you've carefully designed to minimize the RF noise usually associated with this sort of circuit. :) 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] Samelex Power Supplies with a K3
I have never heard the K3 fans. Two fans at very low speed make no noise. Craig Buck On May 23, 2010, at 11:34 AM, Darrell Bellerive drbellerive.va...@gmail.com wrote: I agree! I would rather have a larger, more expensive box with a big heatsink than a fan. The only fan I have ever heard that was silent was one with the blades and motor removed and destroyed. :-) Most people don't seem to notice the noise so I guess we just have to endure it as we seem to be very much the minority and manufacturers just won't spend the extra money to eliminate the fan. I have a Yaesu FT-8900R in my truck mounted enclosed in the centre console. Even with road noise at freeway speeds, I notice when its fan cuts in. Most people do not find the fan in this radio offensive and consider it quiet. I suppose I just have a high sensitivity to fan noise. From my work in the audio industry I have come to the conclusion that sound is very subjective. Each person seems to have their own idea of what sounds good and bad. I think that people get used to a certain colouration or lack of colouration and that becomes the standard to which they judge. That is why some people will praise a particular loudspeaker and others will find it offensive. My work with broadcast radio stations in parts of South America, found that the norm was to overmodulate the signals to get the loudest signal on the band. The distorted sound became the norm and people expected other sources like CD's to sound the same. The same phenomena is happening with the new flat screen TV's. They are put in stretch mode to fill the screen and people just don't seem to notice the distorted picture. I was very disappointed to see the big fan on the new KPA500. I have a KPA100 that is still not finished because I keep looking at the fan and wondering why I bought something with a fan. Eric and Wayne, would you consider a larger heatsink as an option to have a fanless KPA500? Darrell VA7TO On 2010.05.23 7:08 AM, Steve Ellington wrote: PaulIt makes me wonder if they couldn't just put a decent heat sink on those switchers and virtually eliminate the fan or at least make it very rare to ever turn on. I realize they want to keep them small and lightweight and I guess fans are cheap and light but I sure do hate the racket they make! Steve N4LQ -- Darrell Bellerive Amateur Radio Station VA7TO Grand Forks BC Canada __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
Oh, I too remember now, my K3/100 has fans, I remember putting them in. But, I think they are broken because I NEVER hear them. PEH's FIVE solutions to fan noise... (1) Use headphones. (2) Turn the sound up on your K3 speakers. (3) Use digital interfaces and play background music while you operate with your computer. (4) Put a wind-chime behind your K3 and listen to the sweet tinkling notes instead of the fan. (5) Receive on your K3 (fan not needed), transmit on your KX1 (no fan). On May 23, 2010, at 8:52 AM, K4ia wrote: I have never heard the K3 fans. Two fans at very low speed make no noise. Craig Buck On May 23, 2010, at 11:34 AM, Darrell Bellerive drbellerive.va...@gmail.com wrote: I agree! I would rather have a larger, more expensive box with a big heatsink than a fan. The only fan I have ever heard that was silent was one with the blades and motor removed and destroyed. :-) Most people don't seem to notice the noise so I guess we just have to endure it as we seem to be very much the minority and manufacturers just won't spend the extra money to eliminate the fan. I have a Yaesu FT-8900R in my truck mounted enclosed in the centre console. Even with road noise at freeway speeds, I notice when its fan cuts in. Most people do not find the fan in this radio offensive and consider it quiet. I suppose I just have a high sensitivity to fan noise. From my work in the audio industry I have come to the conclusion that sound is very subjective. Each person seems to have their own idea of what sounds good and bad. I think that people get used to a certain colouration or lack of colouration and that becomes the standard to which they judge. That is why some people will praise a particular loudspeaker and others will find it offensive. My work with broadcast radio stations in parts of South America, found that the norm was to overmodulate the signals to get the loudest signal on the band. The distorted sound became the norm and people expected other sources like CD's to sound the same. The same phenomena is happening with the new flat screen TV's. They are put in stretch mode to fill the screen and people just don't seem to notice the distorted picture. I was very disappointed to see the big fan on the new KPA500. I have a KPA100 that is still not finished because I keep looking at the fan and wondering why I bought something with a fan. Eric and Wayne, would you consider a larger heatsink as an option to have a fanless KPA500? Darrell VA7TO On 2010.05.23 7:08 AM, Steve Ellington wrote: PaulIt makes me wonder if they couldn't just put a decent heat sink on those switchers and virtually eliminate the fan or at least make it very rare to ever turn on. I realize they want to keep them small and lightweight and I guess fans are cheap and light but I sure do hate the racket they make! Steve N4LQ -- Darrell Bellerive Amateur Radio Station VA7TO Grand Forks BC Canada __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FT-5000 againts K3 ?
Dave - You wrote: AFAIK, all the testing is done with a single unit. Does anyone have an idea as to what the normal unit-to-unit variation is? Are we talking 0.1dB, 1dB, 5dB? Variations of a few dB from one unit to another of the same radio are typical. For the higher performing radios, most operators will not be able to tell the difference. There are exceptions, for a particularly pathological case look at the Third Order Dynamic Range Narrow Spaced (dB) for the two K2s that Robert Sherwood tested: http://www.sherweng.com/table.html For radios based on straight analog to digital converters (ADC), that is those that have no traditional mixer/LO/IF front end, such as the Perseus the third order dynamic range is not a good figure of merit, as the third order products do not manifest themselves until the ADC has essentially saturated. Everyone should be happy that other manufacturers are striving for optimum receiver performance competitive with Elecraft, whether driven by the K3 or not. Competition is healthy for the market place and we all benefit. It is a lack of American competition in the 70s and 80s that allowed the Japanese imports to get a toehold here. For better and for worse. - Duffey -- KK6MC James Duffey Cedar Crest NM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
I have one too works great. No noise that I can attribute to it. I have an Astron Switcher and it is susceptible to rf on 20m. I saw a post where someone has loose screws in theirs so maybe I should open mine up and poke around. Why would Elecraft not offer a ps kit for the K3? Mike W0MU CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of K4ia Sent: Sunday, May 23, 2010 8:48 AM To: N1JM Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Samelex Power Supplies with a K3 I have used one at Field Day for years. Works great no issues. If you have a problem with fan noise, put the box on the floor. You don't need it on the operating table anyway and moving it away from the radio can't hurt the rfi issues. Craig Buck k4ia On May 23, 2010, at 10:18 AM, N1JM johnn...@gmail.com wrote: Phil Debbie Salas wrote: Anyone using a SEC1235 with there K3? Much RF hash? John N1JM I do. No hash at all. I did make a few mods to my unit. I enabled the fan so it runs at low speed all the time (it can still go to full speed if necessary), and I added a pair of PowerPoles to the back. Info in the Reviews section of my website at www.ad5x.com. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Phil: Some are complaing about loud fan noise. Do you have that with yours? I don't think your review mentioned fan noise as I recall. 73, John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/Samelex-Power-Supplies-with-a-K3-tp5089 932p5090818.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] WTB K2 Option Bypass Headers kit
Hello -Looking for a K2 Rework Options Bypass Header kit. Thanks, John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 fan noise, part XXLIV
The topic of K3 fan noise seems to come up every now and then, and each time it does there's a chorus of people who say the fans in their K3 are absolutely silent, and an equal chorus of people who say the fans are clearly audible. I'm in the latter camp. I hate fan noise and I can clearly hear the fans on my K3 even at the lowest speed. I recognize that people's perception of noise depends on many things: other ambient noise in the environment, personal hearing acuity, how the equipment is placed on the desk, what kind of surface is immediately behind it, etc. etc. However, I'm also wondering if Elecraft has changed brands or models of fans from time to time. It's possible that some brands/models might be quieter than others. The fans in my K3 are made by UTEC and have model numbers of AT6015L-12L2B-ND2 and same prefix-ND5 I would be interested in hearing from others who care to check the brand and model # of their fans, and whether you perceive them to be quiet or not. It's probably best if we don't clutter the list with fan brands and models, so please reply to me directly and I'll post a summary of my findings in a few days. 73 -- Joe KB8AP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
From: K4ia k...@aol.com I have never heard the K3 fans. Two fans at very low speed make no noise. I guess you don't operate RTTY! Dave Hachadorian, K6LL Yuma, AZ . __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
I have a JetStream JTPS-35 switcher. It has a humongous heat sink inside the box and has a fan that makes some noise when the transceiver is turned on. However, I can't hear it when my Dentron Clipperton L is turned on. The Dentron has an aftermarket Radio Shack fan. The original fan was replaced before 1990 when I bought the amp second hand. It seems that a big enough heatsink for the switching transistors might be counterproductive to the light weight. I did reduce the fan noise quite a bit by tying the wires that were touching the fan blades to the heat sink with a twistie from a cord that I got with something. Willis 'Cookie' Cooke K5EWJ From: Steve Ellington n...@carolina.rr.com To: Paul Christensen w...@arrl.net; elecraft@mailman.qth.net Sent: Sun, May 23, 2010 9:08:25 AM Subject: Re: [Elecraft] Samelex Power Supplies with a K3 PaulIt makes me wonder if they couldn't just put a decent heat sink on those switchers and virtually eliminate the fan or at least make it very rare to ever turn on. I realize they want to keep them small and lightweight and I guess fans are cheap and light but I sure do hate the racket they make! Steve N4LQ - Original Message - From: Paul Christensen w...@arrl.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] Samelex Power Supplies with a K3
Some are complaing about loud fan noise. Do you have that with yours? I don't think your review mentioned fan noise as I recall. I said that you'll know when the fan comes on. That's the reason I modified the unit to keep the fan turning at low speed. That keeps the PS cool and so the fan almost never goes to full speed. It never goes to full speed when just powering the K3. But when I also power other rigs (I have an IC-706MKII and an IC-706MKIIG that I sometimes also have on) along with operating the K3, sometimes it will switch to full speed. But this is very rare. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Built in USB interface for K3
On 5/23/2010 2:21 AM, Brett Howard wrote: Pretty much any current OS out there at the moment supports the FTDI USB-RS232 adapters out of the box... Again, not the case. Current releases of Apple OS-X do not ship with FTDI (or any other) USB hardware drivers preinstalled. The user must install the drivers manually or run the manufacturer's installer before the USB device will function. I've confirmed that problem with both Kok Chen and Don Agro in the last couple weeks ... and as a result the OS-X installation data for microHAM interfaces (which use a standard FTDI UART) will be changed relatively soon. 73, ... Joe, W4TV On 5/23/2010 2:21 AM, Brett Howard wrote: Pretty much any current OS out there at the moment supports the FTDI USB-RS232 adapters out of the box... ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 6:09 AM, Don Wilhelmw3...@embarqmail.com wrote: Those making a mod of that nature to a K2 (or any other radio) take on a new responsibility. If anyone makes such a change and subsequently sells their K3, I would hope that the sale would include a CD with the latest drivers for any OS that could possibly be used with the K3. Plain RS-232 does not need drivers - USB does, and those drivers are OS dependent and OS level dependent. When you are working out in the field with your laptop and your USB K3, internet access to download new drivers may not be available. 73, Don W3FPR Allan G Duncan wrote: I don't wish to re-ignite the RS232 vs USB connectivity debates which have regularly appeared on the reflector but some K3 owners may be interested in this product recently launched by FTDI. http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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:DSP Upgrade well worth it
Craig, Philippe and the rest of the gang, I also upgraded last week and I can confirm Craig´s and Philippe´s comments.The K3 simply sounds much nicer, warmer and less annoying and especially SSB, which was quite unpleasant to my ears(and yes,I played around with the settings many hours),is now far better than my back up Icom 761 with JPS NIR-12 DSP. 73, Chris-OE5CSP -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-DSP-Upgrade-well-worth-it-tp5090485p5091201.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] CONFIG
Recently I had a problem with my K3 after installing the latest beta software, after doing parameter initialization and a lot of help from Dale at Elecraft, the radio is back to its old self, almost. I've looked through the config menu but cannot find an entry to solve my issue. I'm hoping the reflector can help. When I transmit with the headphones plugged in I hear myself through the headphones, monitoring I guess, how can I stop this from happening? Thank you to everyone. R Thorpe AC9D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] switching power supplies
I have used the alinco dm-330v (think that number is correct). Has a small fan at the rear, but in normal use you just cannot hear it over normal room noise. Like most switchers it destroys broadcast AM reception, but haven't heard anything while using the k3 for normal ham use. it is a 30 amp supply with meters, and adjustable with a detent at 13.8 v. Also has a switch to set for 13.8 v fixed operation. binding posts on the rear, with two sets of spring connectors on front and cigarette lighter connection. the entire top is a heat sink, but I've never gottten it over fairly warm. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 fan noise, part XXLIV
Fan noise on my K3 is very slight. Not a problem here. Dave, N4QS - Original Message - From: Joe Planisky jp...@jeffnet.org To: Elecraft List Elecraft@mailman.qth.net Sent: Sunday, May 23, 2010 11:19 AM Subject: [Elecraft] [K3] K3 fan noise, part XXLIV The topic of K3 fan noise seems to come up every now and then, and each time it does there's a chorus of people who say the fans in their K3 are absolutely silent, and an equal chorus of people who say the fans are clearly audible. I'm in the latter camp. I hate fan noise and I can clearly hear the fans on my K3 even at the lowest speed. I recognize that people's perception of noise depends on many things: other ambient noise in the environment, personal hearing acuity, how the equipment is placed on the desk, what kind of surface is immediately behind it, etc. etc. However, I'm also wondering if Elecraft has changed brands or models of fans from time to time. It's possible that some brands/models might be quieter than others. The fans in my K3 are made by UTEC and have model numbers of AT6015L-12L2B-ND2 and same prefix-ND5 I would be interested in hearing from others who care to check the brand and model # of their fans, and whether you perceive them to be quiet or not. It's probably best if we don't clutter the list with fan brands and models, so please reply to me directly and I'll post a summary of my findings in a few days. 73 -- Joe KB8AP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Re-CONFIG
Thank you for all the replies to my question, adjust the monitor of course, I feel a little foolish but am glad the reflector is here for support. R Thorpe AC9D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] CONFIG
Push and hold the CMP PWR to adjust the MON level. Steve WU9B on 5/23/10 10:24 AM, Richard Thorpe at kis...@earthlink.net wrote: Recently I had a problem with my K3 after installing the latest beta software, after doing parameter initialization and a lot of help from Dale at Elecraft, the radio is back to its old self, almost. I've looked through the config menu but cannot find an entry to solve my issue. I'm hoping the reflector can help. When I transmit with the headphones plugged in I hear myself through the headphones, monitoring I guess, how can I stop this from happening? Thank you to everyone. R Thorpe AC9D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 Build - #6950
I received my kit on Wednesday and I got to the first alignment already! The front panel is done, the Control Board is pretty much done, and I started in on the RF deck. However, I am missing one of the caps for the Control Board #272 (.0027uH). Before I power up for the first time, am I OK with this stage the way it is or will that cap play a vital role? It is out of C36 (there are 3 of this value on the board). The schematic shows it goes between ground and the + side of U10B (an LMC660). You can follow my build progress on my blog at (mycall).com. (I tried sending the link and the reflector kicked it back - anything other than text gets the boot) Steve, KC8QVO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Build - #6950
Steve, With C36 not installed, you may have a strange sounding sidetone note, but other than that things should work just fine. 73, Don W3FPR steve d wrote: I received my kit on Wednesday and I got to the first alignment already! The front panel is done, the Control Board is pretty much done, and I started in on the RF deck. However, I am missing one of the caps for the Control Board #272 (.0027uH). Before I power up for the first time, am I OK with this stage the way it is or will that cap play a vital role? It is out of C36 (there are 3 of this value on the board). The schematic shows it goes between ground and the + side of U10B (an LMC660). You can follow my build progress on my blog at (mycall).com. (I tried sending the link and the reflector kicked it back - anything other than text gets the boot) Steve, KC8QVO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FT-5000 against K3 ?
James, You state this very well. Competition is good and sooner or later someone will produce a better radio than the K3. Many K3 users would like different emphasis in areas of design but then come to realize that we would probably miss some of the current features such as portability. There is however one area that I bet no one is going to equal and that is the involvement of design engineers with amateurs! The design is ever improving and we have a great community within the Elecraft users. No other radio manufacturer yet matches this and I bet no one will. 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Duffey Sent: 23 May 2010 17:03 To: elecraft@mailman.qth.net Cc: James Duffey Subject: Re: [Elecraft] FT-5000 againts K3 ? Dave - You wrote: AFAIK, all the testing is done with a single unit. Does anyone have an idea as to what the normal unit-to-unit variation is? Are we talking 0.1dB, 1dB, 5dB? Variations of a few dB from one unit to another of the same radio are typical. For the higher performing radios, most operators will not be able to tell the difference. There are exceptions, for a particularly pathological case look at the Third Order Dynamic Range Narrow Spaced (dB) for the two K2s that Robert Sherwood tested: http://www.sherweng.com/table.html For radios based on straight analog to digital converters (ADC), that is those that have no traditional mixer/LO/IF front end, such as the Perseus the third order dynamic range is not a good figure of merit, as the third order products do not manifest themselves until the ADC has essentially saturated. Everyone should be happy that other manufacturers are striving for optimum receiver performance competitive with Elecraft, whether driven by the K3 or not. Competition is healthy for the market place and we all benefit. It is a lack of American competition in the 70s and 80s that allowed the Japanese imports to get a toehold here. For better and for worse. - Duffey -- KK6MC James Duffey Cedar Crest NM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Power Supply
Hello Phil, On Sun, 23 May 2010, elecraft-requ...@mailman.qth.net wrote: From: Phil LaMarche plama...@verizon.net Subject: [Elecraft] K3 Power Supply I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that is light and nice for taking it on vacations etc. Any recommendations? Phil For several years I have been using an MFJ-4125 (6x6x2) with several different rigs when portable. Fan noise is quite low, especially when you have if off the same table as the rig, which is how I operate it. At the time I bought it, several years ago, it had one of the best reviews of several covered in QST for having no hash nor ripple. There is a more current review in QST with other supplies having a few more features, but this unit is light weight and very dependable. ...Edwin Once you have flown, you will walk the earth with your eyes turned skyward, for there you have been, there you long to return.-da Vinci http://bellsouthpwp2.net/e/d/edwinljohnson __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Samelex Power Supplies with a K3
Jim, I should have mentioned that. From the beginning, I wrapped about twelve turns onto a #31 core from the DC input, fan output, and speed pot leads onto a #31 core. In fact, all leads are done with IDC ribbon cable and grouped/wrapped together on one core. Paul, W9AC - Original Message - From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, May 23, 2010 11:52 AM Subject: Re: [Elecraft] Samelex Power Supplies with a K3 On Sun, 23 May 2010 08:40:53 -0400, Paul Christensen wrote: Recently, I've added fan speed control with a PWM controller. I trust that you've carefully designed to minimize the RF noise usually associated with this sort of circuit. :) 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] switching power supplies
Normal room noise? This is probably what masks fan noise for a lot of people. In my house, loud noises are the dust particles crashing into and settling on surfaces. I have thrown away analog quartz clocks because the ticking was too loud. And yes the motor noise in the DVD and VCR players bother me even when watching a movie at a good volume. If there is lots of noise in a house, with furnace fans, or air conditioners, or traffic on the street, then it could mask a the fan noise from the radio or power supply. 73, Darrell VA7TO On 2010.05.23 10:30 AM, Gary Lee wrote: I have used the alinco dm-330v (think that number is correct). Has a small fan at the rear, but in normal use you just cannot hear it over normal room noise. -- Darrell Bellerive Amateur Radio Station VA7TO Grand Forks BC Canada __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Power Supply
For those bothered by fan noise, you might look into my fan speed controller article in February QST (p 44). It's a very simple circuit that gradually speeds up the fan as the temperature rises. PC boards are available from FAR circuits or you can just breadboard it on a scrap of perf board. It was designed for the MFJ-4125 but should work with minor modification with any power supply that uses a 12V fan. Al N1AL On Sun, 2010-05-23 at 13:57 -0500, Edwin Johnson wrote: Hello Phil, On Sun, 23 May 2010, elecraft-requ...@mailman.qth.net wrote: From: Phil LaMarche plama...@verizon.net Subject: [Elecraft] K3 Power Supply I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that is light and nice for taking it on vacations etc. Any recommendations? Phil For several years I have been using an MFJ-4125 (6x6x2) with several different rigs when portable. Fan noise is quite low, especially when you have if off the same table as the rig, which is how I operate it. At the time I bought it, several years ago, it had one of the best reviews of several covered in QST for having no hash nor ripple. There is a more current review in QST with other supplies having a few more features, but this unit is light weight and very dependable. ...Edwin Once you have flown, you will walk the earth with your eyes turned skyward, for there you have been, there you long to return.-da Vinci http://bellsouthpwp2.net/e/d/edwinljohnson __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2/10 Cover Dust Cover For Sale
I have a Radio Dust Covers K2/100 cover in Blue with Gold Lettering and a K2/10 top cover with speaker for sale. Please contact me off list if interested. I have pictures available. You can see these items on QTH.com by searching for ads listed with my call. 73, Dave N8AG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Build - #6950
I got the K2 powered up. It showed the default message INFO 201 and ELECrAFt, then 7100.00c. The display button won't switch anything and the VFO knob doesnt change the frequency (page 44, left column). Time for some trouble shooting. Steve, KC8QVO -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Build-6950-tp5091343p5091676.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] Built in USB interface for K3
Ok well all versions of Linux, Windows after 2000, and even BeOS that I've used support it out of the box... Mac people should be used to having to find drivers for things I guess... ;) I've had nothing but success w/ the FTDI devices and that includes installing them into products that are sold in the 100K a year range. ~Brett (N7MG) (Previously KC7OTG) On Sun, 2010-05-23 at 13:00 -0400, Joe Subich, W4TV wrote: On 5/23/2010 2:21 AM, Brett Howard wrote: Pretty much any current OS out there at the moment supports the FTDI USB-RS232 adapters out of the box... Again, not the case. Current releases of Apple OS-X do not ship with FTDI (or any other) USB hardware drivers preinstalled. The user must install the drivers manually or run the manufacturer's installer before the USB device will function. I've confirmed that problem with both Kok Chen and Don Agro in the last couple weeks ... and as a result the OS-X installation data for microHAM interfaces (which use a standard FTDI UART) will be changed relatively soon. 73, ... Joe, W4TV On 5/23/2010 2:21 AM, Brett Howard wrote: Pretty much any current OS out there at the moment supports the FTDI USB-RS232 adapters out of the box... ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 6:09 AM, Don Wilhelmw3...@embarqmail.com wrote: Those making a mod of that nature to a K2 (or any other radio) take on a new responsibility. If anyone makes such a change and subsequently sells their K3, I would hope that the sale would include a CD with the latest drivers for any OS that could possibly be used with the K3. Plain RS-232 does not need drivers - USB does, and those drivers are OS dependent and OS level dependent. When you are working out in the field with your laptop and your USB K3, internet access to download new drivers may not be available. 73, Don W3FPR Allan G Duncan wrote: I don't wish to re-ignite the RS232 vs USB connectivity debates which have regularly appeared on the reflector but some K3 owners may be interested in this product recently launched by FTDI. http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Possible USB 2.0 mod
Thanks for the congrats on the new call and I must say that I agree w/ you on the connector I usually have a full up RS232 straight through cable between my usb to RS232 adapter and then throw a few turns through a BOCI before it enters the radio... BTW and FYI BOCI stands for (Big 'Ol Chunk of Iron) ~Brett On Sun, 2010-05-23 at 06:35 -0500, Bob Naumann wrote: Not only will the use of such a thing negate the K3 talking to the P3 et al, it does not resolve the USB driver / OS / software problem whatsoever. This is a cool thing, but all it's doing is physically moving the same USB to RS232 converter to inside your K3 instead of between the K3 and your computer. You will still be dealing with virtual com ports and all the other problems that we all know and love with USB to RS232 converters. That said, the FTDI chip set seems to be the most compatible with later OS releases (i.e.; Vista, Win 7) but there are still software issues that may need to be resolved. 73, Bob W5OV P.S. Congrats on your new call Brett! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Sunday, May 23, 2010 1:13 AM To: mzil...@verizon.net Cc: elecraft@mailman.qth.net; Kevin Rock Subject: Re: [Elecraft] Possible USB 2.0 mod Keep in mind that buying this rather than simply using a FTDI chipset based USB to RS232 cable will negate the ability to use the P3 or KPA500 properly... But I suppose this could be installed into the P3 or KPA500 instead ~Brett (N7MG) (Previously KC7OTG) On Fri, May 21, 2010 at 7:46 AM, Matt Zilmer mzil...@verizon.net wrote: However, this link works: http://www.ftdichip.com/Documents/DataSheets/Modules/DS_DB9-USB-RS232.pdf matt W6NIA On Fri, 21 May 2010 07:44:14 -0700, you wrote: Too bad the datasheet won't load (here, at least). matt W6NIA On Fri, 21 May 2010 10:32:48 -0400 (EDT), you wrote: I was sitting down to breakfast when I looked at my email. Seems like the questions and the answers occurred together. For all you folks looking for a USB connection look here: http://www.elektor.com/news/usb-2-0-module-to-replace-db9-rs232-connecto r-on.1361885.lynkx?utm_source=UKutm_medium=emailutm_campaign=news Or a shorter address to the same place: http://dbaseserver.mistermail.nl/t/838415/5034024/197744/0/ This article describes a drop in replacement to the DB9 RS-232 connection created by a local company (Hillsboro, Oregon). Maybe this will solve the dilema. 73, 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3:DSP Upgrade well worth it
The update has reduced the amount of noise my wife hears upstairs. I know that sounds wild, but believe me it is totally worth it. The sound quality of the radio with my external stereo speakers including subwoofer is very pleasant. Bill K9YEQ K2 and KX1 field tester, K3 and modules -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of OE5CSP-Chris Sent: Sunday, May 23, 2010 11:52 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3:DSP Upgrade well worth it Craig, Philippe and the rest of the gang, I also upgraded last week and I can confirm Craig´s and Philippe´s comments.The K3 simply sounds much nicer, warmer and less annoying and especially SSB, which was quite unpleasant to my ears(and yes,I played around with the settings many hours),is now far better than my back up Icom 761 with JPS NIR-12 DSP. 73, Chris-OE5CSP -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-DSP-Upgrade-well-worth-it-tp5090485p5091201.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] Samlex 1223 1235 power supplies
I use the Samlex SEC 1223 power supply for my K3/100 and the Samlex SEC 1235 to power my Ten Tec OMNI Vll transceivers. Both power supplies are dead quiet, the fans seldom come on. They both sit on top of the transceivers and never cause sperious interference. Phil I would highly recommend these units. Less than $110.00 for the 1223 unit, 73, Bob VE3XM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RF Board resistance checks - not in spec
Here are my out-of-spec measurements. Any ideas? R1 = 96.4k R2 = 96.5k Both should be 1M. Everthing else in the list checks out (well above the lower spec limit). At this point the rig powers up and gives me the 201 message, switches to ELECrAFt, then 7100.00c but the buttons and knobs don't work (the next step is to push the display button to see what the voltage reading is, switch back to VFO, and spin the VFO knob to observe the frequency change - neither the display button or the VFO knob do anything). Steve, KC8QVO -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-RF-Board-resistance-checks-not-in-spec-tp5091997p5091997.html Sent from the [K2] 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] Samlex 1223 1235 power supplies
John Phil, I use a SEC1223 power supply with my K3/100. It sits on top of the K3. Never the least bit of hash or fan noise experienced. Highly recommended! I also use the SEC 1235 with my Ten Tec OMNI VII same experience. 73,Bob VE3XM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 fan noise, part XXLIV
Joe - while I appreciate your concern for cluttering the list with fan noise noise, that's exactly what these lists are for -- discussion -- and now there are loads of tools and filtering options for incoming email. Gmail's threads for example will keep all related messages together (if subject is the same)... I think there's more value in letting everybody see the responses as they come in. Relative to the grand scheme of things, even the fully loaded thread will be nothing compared to the rest of the bandwidth used around it. Great stuff, bring it on...! Just my opinion. --Andrew I despise fan noise NV1B .. messages in the thread neatly contained to a single On Sun, May 23, 2010 at 12:19 PM, Joe Planisky jp...@jeffnet.org wrote: The topic of K3 fan noise seems to come up every now and then, and each time it does there's a chorus of people who say the fans in their K3 are absolutely silent, and an equal chorus of people who say the fans are clearly audible. I'm in the latter camp. I hate fan noise and I can clearly hear the fans on my K3 even at the lowest speed. I recognize that people's perception of noise depends on many things: other ambient noise in the environment, personal hearing acuity, how the equipment is placed on the desk, what kind of surface is immediately behind it, etc. etc. However, I'm also wondering if Elecraft has changed brands or models of fans from time to time. It's possible that some brands/models might be quieter than others. The fans in my K3 are made by UTEC and have model numbers of AT6015L-12L2B-ND2 and same prefix-ND5 I would be interested in hearing from others who care to check the brand and model # of their fans, and whether you perceive them to be quiet or not. It's probably best if we don't clutter the list with fan brands and models, so please reply to me directly and I'll post a summary of my findings in a few days. 73 -- Joe KB8AP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RF Board resistance checks - not in spec
Steve, Those resistance readings are too low, and you will have to find the cause. What I believe is happening is that the low resistance on the paddle connections is triggering the circuits to go into a transmit state - and if that happens, the buttons do not work nor will the encoder change frequency. Do you have anything plugged into the key jack? If so, remove it and remeasure. Did you make the measurement after the RF Board and the Control Board had been connected? If so, then those readings are intended to be done on the RF Board alone. If still low, check for solder bridges - check RF Board J8 pins 17 and 18 carefully. If there is a large deposit of solder, wich away the excess. As a last resort, lift one end of R1 and R2 and remeasure the resistance both at the key jack and at J8 pins 17 and 18 - both should be greater than 1 megohm. If the key jack is low, you may have a defective key jack, but if J8 pins 17 and 18 are low, you have a short to another circuit somewhere. Again, examine the soldering carefully. Solder sufficient to only fill the thru-plated hole is all that is necessary. If you have a pile of solder much more than that, wick most all of it away, it is certain to cause trouble. Please understand that I have no idea at this time about your soldering skills (no insult intended), but too much solder and not enough heat are common builder problems - the solder must flow out onto the solder pad and the lead, and excess solder will mask a bad connection. Adjust the soldering station temperature so you can produce a good flow of molten solder in 2 to 3 seconds. 73, Don W3FPR Steve KC8QVO wrote: Here are my out-of-spec measurements. Any ideas? R1 = 96.4k R2 = 96.5k Both should be 1M. Everthing else in the list checks out (well above the lower spec limit). At this point the rig powers up and gives me the 201 message, switches to ELECrAFt, then 7100.00c but the buttons and knobs don't work (the next step is to push the display button to see what the voltage reading is, switch back to VFO, and spin the VFO knob to observe the frequency change - neither the display button or the VFO knob do anything). Steve, KC8QVO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 (5-23-10)
The net was a bit challenging again today. Signals were just not very strong, and QSB was deep at times. We had 29 participants over the 32 minute net, however. We had both AK and HI, and I was able to hear two WA stations as well. Notably, we had four K2s in the mix today. Conditions were bad enough that there was no discussion - we struggled with many of the check-ins. Here is the list of the group: Station NameQTH Rig S/N W0FMTerry MO K3 474 VE3QF TonyON K3 137 KD0HII Brian IA K3 3672 N1LQDaveMA K3 371 W0RSR MikeCO K2 5767 K0VET JohnMO K3 3986 AC0IV Dennis CO K3 1946 W4LTLu FL K3 3192 KA0NCR Arnie NE K3 185 K7RMT Bud TX K3 4086 NT5QDon NM K3 4179 W9EJB Ed IN K3 1593 W8OVDaveTX K3 3139 N3XPD MikePA K2 4935 K4GCJ Gerry NC K3 1597 K5OAI Sam TX K3 4123 AH6RE CurtHI K3 469 AC7SB Peter WA K2 3016 K7SJRoger WA K3 75 W8YMO Harry OH K3 166 K8DJC Nelson OH K3 560 KD5VXH Jim TX Icom W5ETJ GaryTX K3 3227 NU4CPaulFL K3 3993 KB3FBR Joe PA K2 6178 AE6IC FredCA K3 2241 KL7UW Ed AK K3 QRP N9SDZ Roger WI FT450 NS7PPhilOR K3 1826 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
[Elecraft] K2 Options By Pass Kit
Thanks to all for the replies. I have located a kit and it will soon be on the way to me. 73, John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Report for May 23rd 24th, 2010
Good Evening, Twenty meters was pretty good this evening. Forty meters seemed to be more problematic ;) Weather reports were much nicer to my east than they were to my south. I did get a few reports of pleasant weather in California but also had two others with chilly temperatures. It was all a matter of how close one lived to the ocean. I live at altitude but am not far from the Pacific. A blast from the Gulf of Alaska traveled as far south as Baja but did not get far onshore. The sun has awakened once again. Sunspot 1072 has grown rapidly and now threatens us with possible C-class flares. However, if they do not happen soon the flares will pass by without effecting the earth. Exciting to watch but not helpful for propagation. Maybe more spots will sprout in the next few weeks to keep our ionosphere well fed. I would enjoy having the MUF rise above twenty meters or even higher. Sporadic Es have begun though. 6 meter CW contacts are a hoot. Distant ones are even more fun. On to the lists = On 14050.5 kHz at 2200z: K6PJV - Dale - CA - K3 NO8V - John - MI - K3 K6DGW - Fred - CA - K3 - 642 W0RSR - Mike - CO - K2 - 5767 K1THP - Dave - CT - K3 - 686 K0DTJ - Brian - CA W6BK - Dave - CA - K2 - 4910 K4JPN - Steve - GA - K2 - 1422 KD2ADT - ? - ? N0TA - John - CO - K3 W0CZ - Ken - ND - K3 - 457 W8OV - Dave - TX - K3 - 3139 N0AR - Scott - MN - K2 - 4866 On 7045 kHz at z: K6PJV - Dale - CA - K3 N0TA - John - CO - K3 K0DTJ - Brian - CA N0AR - Scott - MN - K2 - 4866 W0RSR - Mike - CO - K2 - 5767 I am still working on the database so there will be gaps in my reports until it is rebuilt. I now have three working computers, each with a copy of the database. I will not lose it again. I do need to worry about update order but with CVS in place it should be easier. If you wish to supply a fill for any gap in the above list, or corrections, please email them to me. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
