Re: [Elecraft] COAX for audio cables ???
Bob: If you go to www.cablesondemand.com, they have all kinds of Amphenol cables for sale. I've only ordered from them once (absolutely no affiliation), but the cables I bought seemed very high quality and reasonably priced. They have all kinds of cable, not just audio, but coax and computer cables as well. 73's, John AA0VE Bob - W0GI wrote: > I will need to make some audio cables for the new K3 for the LP-PAN to the > audio box, and also to the other soundcard. > > I think I read somewhere in one of the K3 manuals that it is best to use > small coax, as it has better shielding. > > Makes sense to me, and LMR100 seems to fit the bill, but at $0.64 per foot, > I wonder what else is available? > > Not cheesy RS audio cable, but decent coax? > > Considering the length involved, the LMR100 isn't going to break the bank. > :>) > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Attenuator and RF Gain Settings
I am 61 years old and more than 40 as a ham and always since I started on hamradio with the tube type receivers has used the volumen control almost to the maximun and then control the signal with the RF gain control,no matter which radio you will be using,this is the best way to cut down band noise and close freq QRM,,without a doubt the K3 is the highest performer in the market and doing this it will work even better,I have never used my preamp,not even on 10M,the K3 has enough sensitivity not to use it,on 40 and 80M I always have my ATT engaged and I am able to pull any weak dx station no matter how weak it is and even with a strong one at 2Khz away my freq. My two cents. AD4C "For a refined ham it is compulsory to own a k3" --- On Sun, 1/31/10, Jim Brown wrote: From: Jim Brown Subject: [Elecraft] Attenuator and RF Gain Settings To: "elecraft@mailman.qth.net" Date: Sunday, January 31, 2010, 10:09 PM On Sun, 31 Jan 2010 14:23:33 -0500, Brian Machesney wrote: >For the first time, I turned on the K3's ATT and found that I was even >better able to separate callers, particularly when trying to pick out >relatively weaker EU signals from stronger NA signals responding to my CQ. Those of us with lots of grey hair learned 50 years ago that the most important control on our receiver was the RF Gain. They didn't come with attenuators or preamps in those days, but we also learned to switch them to a shorter antenna when they got overloaded. With a modern radio, on bands below 20M, the ATTenuator should almost always be ON and the PREamp should almost always be OFF for the greatest ability to separate weak signals from strong ones. On 20M you can usually turn off the ATTenuator, but you may not need the preamp until you go to higher bands. Another hint -- to pull really weak ones out from between strong signals, turn down the RF gain to the point where you are just hearing the weak one. During the 160M contest this weekend, preamp was off, ATT was on, and my RF gains were at about 2'o'clock. 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] K3 & Beverages on 160
For the benefit of others here, the reply by K4SAV on the Topband list is accurate in all respects. 73, Bill http://lists.contesting.com/pipermail/topband/2010-January/032608.html KA1J wrote: > > Beverage 1 runs from the house to the east and is 500' long. The wire > comes in through the window sill and is held up by branches & it > dips,. It has no termination resistor. The matching transformer is > next to the window. The ground is connected to the station ground > rod > > .I surely must be doing something wrong. > I wouldn't expect much performance from a Beverage built like that. A bi-directional Beverage will have a lot more noise than an single direction one, and connecting the ground to the station ground will allow all the station ground noise to appear in the signal. It could also destroy the pattern because of the signal picked up on the house wiring, which also gets into the output. Build it like everyone else does, separate ground rods at both ends not connected to anything else, add termination resistor, use transformer with good primary to secondary isolation or lots of chokes on the feedline. -- View this message in context: http://n2.nabble.com/K3-Beverages-on-160-tp4490135p4494495.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] 2M with K3 - anyone doing it?
Dear Mike, Not exactly an answer to your question but in my oppimion you should consider an old Icom IC-275E or IC-275H (25 or 100 W) before making your decission. See this link http://df9ic.de/tech/trxtest/trxtest.html Vy 73 OZ1CCM Kjeld -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael M. Raskin Sent: 31. januar 2010 03:35 To: elecraft@mailman.qth.net Subject: [Elecraft] 2M with K3 - anyone doing it? I recently picked up a used THL 500V 2M amp. I want to drive it with my K3, which has no 2M capability. The K144KV-F internal 2M module only has 10 Watts output, which is not enough to drive the THP 500V to 500 Watts. The KV144 2M transverter has enough power to do it, but it has to be external and is a kit, something difficult with my increasing age. Since Elecraft does not plan to have an internal 2M module with more than 10 Watts, would I be better off with the external transverter since I want to do 2M terrestrial as well as EME? Or should I give up on the K3 for 2M EME and wait for the new ICOM to be released? Mike, W4UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Half power
I've just switched on only to find I'm only running half pwr 50w on cw and ssb have I tweeked a wrong switch somewhere! Ken..G0ORH Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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： Attenuator and RF Gain Settings
Hello Hector, I concur your view. I always lower the RF gain to a point equal to the band noise in the s meter. I find many operators just let the RF gain always fully clockwise. Of course, 6m will need a bit more sensitivity. 73 Johnny VR2XMC - 郵件原件 寄件人﹕ Hector Padron 收件人﹕ Jim Brown 副本(CC) elecraft@mailman.qth.net 傳送日期﹕ 2010/2/1 (一) 10:09:07 PM 主題： Re: [Elecraft] Attenuator and RF Gain Settings I am 61 years old and more than 40 as a ham and always since I started on hamradio with the tube type receivers has used the volumen control almost to the maximun and then control the signal with the RF gain control,no matter which radio you will be using,this is the best way to cut down band noise and close freq QRM,,without a doubt the K3 is the highest performer in the market and doing this it will work even better,I have never used my preamp,not even on 10M,the K3 has enough sensitivity not to use it,on 40 and 80M I always have my ATT engaged and I am able to pull any weak dx station no matter how weak it is and even with a strong one at 2Khz away my freq. My two cents. AD4C "For a refined ham it is compulsory to own a k3" --- On Sun, 1/31/10, Jim Brown wrote: From: Jim Brown Subject: [Elecraft] Attenuator and RF Gain Settings To: "elecraft@mailman.qth.net" Date: Sunday, January 31, 2010, 10:09 PM On Sun, 31 Jan 2010 14:23:33 -0500, Brian Machesney wrote: >For the first time, I turned on the K3's ATT and found that I was even >better able to separate callers, particularly when trying to pick out >relatively weaker EU signals from stronger NA signals responding to my CQ. Those of us with lots of grey hair learned 50 years ago that the most important control on our receiver was the RF Gain. They didn't come with attenuators or preamps in those days, but we also learned to switch them to a shorter antenna when they got overloaded. With a modern radio, on bands below 20M, the ATTenuator should almost always be ON and the PREamp should almost always be OFF for the greatest ability to separate weak signals from strong ones. On 20M you can usually turn off the ATTenuator, but you may not need the preamp until you go to higher bands. Another hint -- to pull really weak ones out from between strong signals, turn down the RF gain to the point where you are just hearing the weak one. During the 160M contest this weekend, preamp was off, ATT was on, and my RF gains were at about 2'o'clock. 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 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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： 2M with K3 - anyone doing it?
Hello Mike and Kjeld, IC275, IC475 and IC1275 were Icom's sought after monoband all mode rigs. The first two can still be found in the used market but the 3rd one will be very different to be found. IC275 can still be easily found in Japan but you have to do modification to ROM IC so as to release the band limit. 73 Johnny VR2XMC - 郵件原件 寄件人﹕ Kjeld Holm 收件人﹕ Michael M. Raskin ; elecraft@mailman.qth.net 傳送日期﹕ 2010/2/1 (一) 10:26:47 PM 主題： Re: [Elecraft] 2M with K3 - anyone doing it? Dear Mike, Not exactly an answer to your question but in my oppimion you should consider an old Icom IC-275E or IC-275H (25 or 100 W) before making your decission. See this link http://df9ic.de/tech/trxtest/trxtest.html Vy 73 OZ1CCM Kjeld -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael M. Raskin Sent: 31. januar 2010 03:35 To: elecraft@mailman.qth.net Subject: [Elecraft] 2M with K3 - anyone doing it? I recently picked up a used THL 500V 2M amp. I want to drive it with my K3, which has no 2M capability. The K144KV-F internal 2M module only has 10 Watts output, which is not enough to drive the THP 500V to 500 Watts. The KV144 2M transverter has enough power to do it, but it has to be external and is a kit, something difficult with my increasing age. Since Elecraft does not plan to have an internal 2M module with more than 10 Watts, would I be better off with the external transverter since I want to do 2M terrestrial as well as EME? Or should I give up on the K3 for 2M EME and wait for the new ICOM to be released? Mike, W4UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FW: Half power on K3
Sri missed wot radio my K3.doh -Original Message- From: Ken Chandler [mailto:g0...@sky.com] Sent: 01 February 2010 14:49 To: Elecraft Reflector Subject: Half power I've just switched on only to find I'm only running half pwr 50w on cw and ssb have I tweeked a wrong switch somewhere! Ken..G0ORH Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] N2CQ QRP Contest Calendar: Feb 2010
~ N2CQ QRP CONTEST CALENDAR February 2010 ~ 80 METER FOXHUNT (CW) *** QRP Contest *** Each Tuesday to Mar 24 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ 40 METER FOXHUNT (CW) *** QRP Contest *** Each Thursday to March 26 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ Adventure Radio Spartan Sprint (CW) ... QRP Contest! EST: Feb 1, 9 PM to 11 PM (First Monday each month) UTC: Feb 2, 0200z to 0400z Rules: http://adventure-radio.org/wiki/index.php?title=Main_Page ~ Vermont QSO Party (CW/PH/Dig) ... QRP Category Feb 6, z to Feb 7, 2400z Rules: http://vtqsoparty.westriverradio.org/ ~ 10-10 Int. Winter Phone QSO Party ... QRP Category Feb 6, 0001z to Feb 7, 2359z Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf ~ Black Sea Cup International (CW/SSB) ... QRP Category Feb 6, 1200z to Feb 7, 1200z Rules: http://bscc.ucoz.ru/index/0-21 ~ Minnesota QSO Party (All) ... QRP Category Feb 6, 1400z to 2359z Rules: http://www.w0aa.org/ ~ FYBO Winter QRP Field Day (CW/SSB) ... QRP Contest! Feb 6, 1400z to 2400z Rules: http://www.azscqrpions.org ~ AGCW Straight Key QSO Party (CW 80M) ... QRP Category Feb 6, 1600z to 1900z Rules: http://www.agcw.org/en/?Contests:Straight_Key_Party ~ British Columbia QSO Party (CW/PH/Dig) ... QRP Category Feb 6, 1600z to Feb 7, 0759z Rules: http://www.deltaamateurradio.com/bcqsoparty/Delta_Amateur_Radio/Rules.html ~ Delaware QSO Party (All) ... QRP Category Feb 6, 1700z to Feb 7, 2359z Rules: http://www.fsarc.org/DEQSO.html ~ North American Sprint (CW) ... QRP Category Feb 7, z to 0400z Rules: http://www.ncjweb.com/sprintrules.php ~ New Mexico QSO Party (CW/PH/Dig) ... QRP Category Feb 7, 1500z to Feb 8, 0300z Rules: http://pages.swcp.com/~n5zgt/nmqsoparty/index.html ~ QRP ARCI Fireside Sprint (SSB) ...QRP Contest! Feb 7, 2000z to 2359z Rules: http://www.qrparci.org/ ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EST: Feb 9, 8:30 PM to 10:30 PM UTC: Feb 10, 0130Z to 0330Z Rules: http://home.windstream.net/yoel/contests.html ~ CWops Mini-CWT Test (CW) ... QRP Category Feb 10, 1100z to 1200z and Feb 10, 1900z to 2000z and Feb 11, 0300z to 0400z Rules: http://www.cwops.org/onair.html ~ Valentine Sprint (PODXS) (PSK-31) ... QRP Category Feb 12, 8 PM to Feb 13, 2 AM LOCAL TIME Rules: http://www.podxs070.com/valentine-sprint ~ CQ WW RTTY WPX Contest ... Low Power Category Feb 13, z to Feb 14, 2359z Rules: http://www.cqwpxrtty.com/ ~ Dutch PACC Contest (SSB/CW) ... QRP Category Feb 13, 1200z to Feb 14, 1200z Rules: http://pacc.veron.nl/ ~ Louisiana QSO Party (Ph/CW) Feb 13, 1500z to Feb 14, 0300z Rules: http://www.qsl.net/kd5wdy/LAQSO_/laqso_.html ~ OMISS QSO PARTY (SSB) ... QRP Category Feb 13, 1500z to Feb 14, 1500z Rules: http://omiss.net/qsoparty.html ~ FISTS Winter Sprint (CW of course) ...QRP Category Feb 13, 1700z to 2100z Rules: http://www.fists.org/sprints.html ~ SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category Feb 14, z to 2359z Rules: http://www.skccgroup.com/sprint/wes/ ~ North American Sprint (SSB) ... QRP Category Feb 14, z to 0400z Rules: http://www.ncjweb.com/sprintrules.php ~ Russian PSK WW Contest Feb 19, 2100z to Feb 20, 2100z Rules: http://www.digitalrus.ru/Files/RusWW.htm ~ ARRL International DX Contest (CW) ... QRP Category Feb 20, z to Feb 21, 2400z Rules: http://www.arrl.org/co
Re: [Elecraft] Signal / RF generator
Hi Tom: Thanks to you and all others for your replies. Seems the HP's are everyone's favorite. Your right about the price. Much too high for my use and limited needs. My 259B does well to create a signal but I fear I may need to leave it on for hours before use to get it to settle down. I don't have another HF rig in the house these days. That's interesting since I had 7 of them about this time last year. :-) Not sure what I'll do at this point. Even if one of the HP8640's did come up at a good price, it's still much too big for my use. SO, I'm on the hunt for something with a small footprint, good attenuation, good coverage up to about 150 Megs, great stability all for around $100.00 ( or less ) Kind of sounds like a TV commercial I've seen lately. LOL Again, thanks to all: 73 JerryN0JRN > Hi Jerry: > > Around here, the 'choice' seems to be the H-P 8640B with the H-P > 8654B being a somewhat lesser choice (more phase noisy, I'm > told). I've > been looking for an 8640B for a while, but while they > used to sell for around $300, they now seem to be going for upwards > of $450 which his a bit steep for me, given my somewhat limited 'needs'. > > For most of my 'sig gen' needs (which usually do NOT require a > 'calibrated' level output, but more importantly an accurate signal > frequency, I use the K3 (or my TS-950SD) as the signal source (into a > dummy load, of course). > > 73, > > Tom Hammond N0SS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 mods and methods: smt resistor/capacitor de-soldering
It's a process, it's easier than you think, and there is plenty of room for creativity. I don't pretend to know it all; this works for me. BASICS: Light up the work area. Get comfortable seating. Buy a pull-down magnifier. Don't skimp here. I use OPTI-VISOR, 3X lenses. Buy 2 of the physically-smallest low-power soldering pencils. Buy a *large* decorative clothes pin. Buy various-length, variously-shaped stainless tweezers. Attach the pencils to the clothes pin. Hose-clamps? Shim the jaws open so the pencil-tips get proper spacing to (just) clear the device, or a skosh less to grab it. OPTIONAL: Take a dose of your favorite relaxation agent . Take your time. Practice on junk boards: heat, tweeze, pluck. Now you can remove any smt you can get this contraption on to. Ymmv. No pics available. I'm omitting the green stuff and presenting only basics. Real tools cost BIG bucks. Brgds, Dave, W8FGX -- View this message in context: http://n2.nabble.com/K3-mods-and-methods-smt-resistor-capacitor-de-soldering-tp4494881p4494881.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 mods and methods: smt resistor/capacitor de-soldering
I find that the key to removing SMT components like those involved in the mods described is best done with solder-wick and quick movement of one small-tipped iron to both ends of the component. I removed most of the solder with the solder-wick and then alternate heating of both ends of the component until it lifts up from one end. It then becomes a matter of heating the remaining end and plucking the old part off with the iron's tip. Then, clean the pads with the solder wick and install the new component. Being able to see is crucial, and loads of task lighting is helpful. 73, Bob W5OV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Signal / RF generator
Jerry, Take a look at http://wb6dhw.com/index.html. It is a kit (or just boards if you prefer). According to the info I received, Dave says he is about to finish the firmware for the standalone signal generator, it has output level control, has modulation capability and also sweep capability (with provisions for triggering the 'scope and providing a reference blip on the second channel. It also has an optional power meter, so it can be used as a spectrum analyzer. Firmware loads from a USB port. I am thinking of building one myself for a compact portable standalone signal generator. The price is within your budget. 73, Don W3FPR n0jrn wrote: > Hi Tom: > > Thanks to you and all others for your replies. Seems the HP's are > everyone's favorite. > > Your right about the price. Much too high for my use and limited needs. My > 259B does well to create a signal but I fear I may need to leave it on for > hours before use to get it to settle down. > > I don't have another HF rig in the house these days. That's interesting > since I had 7 of them about this time last year. :-) > > Not sure what I'll do at this point. Even if one of the HP8640's did come > up at a good price, it's still much too big for my use. > > SO, I'm on the hunt for something with a small footprint, good attenuation, > good coverage up to about 150 Megs, > great stability all for around $100.00 ( or less ) > > Kind of sounds like a TV commercial I've seen lately. LOL > > Again, thanks to all: > > 73 JerryN0JRN > > >> Hi Jerry: >> >> Around here, the 'choice' seems to be the H-P 8640B with the H-P >> 8654B being a somewhat lesser choice (more phase noisy, I'm >> told). I've >> been looking for an 8640B for a while, but while they >> used to sell for around $300, they now seem to be going for upwards >> of $450 which his a bit steep for me, given my somewhat limited 'needs'. >> >> For most of my 'sig gen' needs (which usually do NOT require a >> 'calibrated' level output, but more importantly an accurate signal >> frequency, I use the K3 (or my TS-950SD) as the signal source (into a >> dummy load, of course). >> >> 73, >> >> Tom Hammond N0SS >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 9.0.733 / Virus Database: 271.1.1/2662 - Release Date: 02/01/10 > 07:37:00 > > __ 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
Re: [Elecraft] K3 mods and methods: smt resistor/capacitor de-soldering
Bob, I have been successful using that technique, but when there is any difficulty with the solder re-attaching, I slide a THIN knife blade under the first side when the solder melts. The blade must be thin (and must have a sharp edge) so the amount of lift is very small - a thick blade could pull the pad that is still soldered to the board. 73, Don W3FPR Bob Naumann wrote: > I find that the key to removing SMT components like those involved in the > mods described is best done with solder-wick and quick movement of one > small-tipped iron to both ends of the component. I removed most of the > solder with the solder-wick and then alternate heating of both ends of the > component until it lifts up from one end. It then becomes a matter of > heating the remaining end and plucking the old part off with the iron's tip. > Then, clean the pads with the solder wick and install the new component. > > Being able to see is crucial, and loads of task lighting is helpful. > > 73, > > Bob W5OV > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: For Sale - Factory Built K3/100 Fully Loaded
Hi, Reluctantly I am selling my K3/100 S/N 3206.I just don't have enough time to use it. This K3 was purchased in June 2009 and is in mint cosmetic and perfect functional condition. No updates since purchase. The following options were factory installed: KAT3 - K3 ATU KRX3 - 2nd RX KBPF3 - General Coverage RX Bandpass Module x 2 KXV3 - RX Ant, IF Out and XVTR interface KTCXO3-1 - TCXO (1ppm) Filters - Main RX KFL3A-6K - 6kHz AM/ESSB 8-pole filter KFL3B-FM - 13kHz FM filter KFL3A-1.8k - 1.8kHz 8-pole filter KFL3A-2.8k - 2.8kHz 8-pole filter KFL3A-400 - 400 Hz, 8 pole filter Filters - Sub RX KFL3A-6K - 6kHz AM/ESSB 8-pole filter KFL3A-1.8k - 1.8kHz 8-pole filter KFL3A-2.8k - 2.8kHz 8-pole filter KFL3A-250 - 250 Hz, 8 pole filter KFL3A-400 - 400 Hz, 8 pole filter Possibly of most interest within the EU (no tax or duty) Original invoice cost was $4,700 Selling for 2,700 Euros plus shipping. Please contact me off the list. 73 David EI6JZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 mods and methods: smt resistor/capacitor de-soldering
David Windisch wrote: > >It's a process, it's easier than you think, and there is plenty of room >for creativity. I don't pretend to know it all; this works for me. > >BASICS: > >Light up the work area. > >Get comfortable seating. > >Buy a pull-down magnifier. Don't skimp here. I use OPTI-VISOR, 3X >lenses. Buy 2 of the physically-smallest low-power soldering pencils. >Buy a *large* decorative clothes pin. Buy various-length, >variously-shaped stainless tweezers. > >Attach the pencils to the clothes pin. Hose-clamps? Shim the jaws open >so the pencil-tips get proper spacing to (just) clear the device, or a >skosh less to grab it. > >OPTIONAL: Take a dose of your favorite relaxation agent . > >Take your time. Practice on junk boards: heat, tweeze, pluck. > >Now you can remove any smt you can get this contraption on to. > >Ymmv. No pics available. I'm omitting the green stuff and presenting >only basics. Real tools cost BIG bucks. > I strongly agree about the lighting [1] and magnification - and for serious SMD work, stay off the espresso! But it really isn't necessary to use a double soldering pen to remove a bitty 0603 chip. It goes like this: Use a normal solder pen with a small pointed tip. 1. Melt solder at left-hand end of chip. 2. Switch to right-hand end, melt solder there. 3. Back to left. 4. Ri... Oh, it already came off. Wasn't that easy? [1] For lighting, get one of these - it's brilliant! USA: http://www.ikea.com/us/en/catalog/products/50128713 UK: http://www.ikea.com/gb/en/catalog/products/50128708 More info here: http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#0809 -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Auto Tuners Revisited
I am thinking that there is a potential new product to be developed. An auto-tuner that can fill the gaps that the other great products miss (e.g. Palstar AT-AUTO). Or, maybe Elecraft is thinking along these lines. For a full legal limit antenna coupler, I submit the following "wish-list" new features or enhancements to the existing state of the art: (1) Separate the controls and displays into a control head desk top type unit and leave the actual tuning hardware with all of its bulk in another box to be hidden away somewhere (maybe even outside in the weather). Connection cable should be high-speed serial (e.g. USB). Comment: legal limit tuners can sometimes be huge things and they would take up a lot of valuable space on a desktop. Surely we can separate them. (2) Provide for multiple input/output ports. Ideally something like at least two radio+amplifier inputs and possibly even 4. And, multiple antenna outputs, probably 4. I would not include a balanced line output since a good current balun should be an independent choice for a particular antenna and not something built into the tuner. Also, the location for the current balun is not necessarily the same location as the tuner (i.e. the separate box as per item 1 above). (3) Given the multiple radio-amplifier input and antenna output ports, the logic and memory choices for a match are port dependent and that information should be in the memory storage. Program logic in the tuner should allow for the unique attributes of each radio. I am suggesting that once a radio and amplifier combination is associated with a given input port that their may be some software configuration necessary so this is not a dynamic (during operation) changeable setup. (4) Interface cables may be needed to be connected to the radio (tuner control) and to amplifier for amp bypass. Ideally it would seem that such cables can be daisy-chained to minimize cable complexity with the tuner logic properly blocking out radios that are not selected. Only one input port can be selected at a time. Of course, there may be even better and simpler ways to do this. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Unable to resolve apparent S-meter noise level on K3 with AGC on
Laurent, doing this made absolutely no difference. All it did is equalize the readings between preamp, att, and neither. I believe that is what this setting is supposed to do but it did not fix my underlying issue. -- View this message in context: http://n2.nabble.com/Unable-to-resolve-apparent-S-meter-noise-level-on-K3-with-AGC-on-tp4488538p4491199.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] 2M with K3 - anyone doing it?
Kjeld Holm wrote: > > > Not exactly an answer to your question but in my oppimion you should > consider an old Icom IC-275E or IC-275H (25 or 100 W) before making your > decission. See this link http://df9ic.de/tech/trxtest/trxtest.html > > That article makes a questionable assumption: "The IP3 is less important than LO and TX noise performance as there are usually only few strong and very strong signals on 144 MHz." I live in a VHF desert and can usually hear nothing at all but when a contest is on and the portables take to the Dumfries and Galloway hills which are line of sight across the water their signals are MASSIVE. The only time I have ever seen the K3 S-meter reading "end-stop" is on 2m. I can work these guys using 2.5W to rubber duck on an FT-817 standing on the shack desk. So I think IP3 is very important on VHF. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/2M-with-K3-anyone-doing-it-tp4487963p4495657.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] Elecraft SSB Net results (1-31-10)
Two minor corrections. 39 participants and s/n 99 for K8EAG. Have a good week. 73, Phil -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phillip Shepard Sent: Sunday, January 31, 2010 7:33 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Elecraft SSB Net results (1-31-10) We had a very good net today. Signals were generally strong, and we had 38 participants over the 35 minute net. The discussions centered on shipment status/dates for the upgraded DSP PCB and the P3. Here is the list of the group: Station NameQTH Rig S/N W4RKS Jim AL K3 3618 KA0NCR Arnie NE K3 185 W0FMTerry MO K3 474 NZ0TBillKS K3 1502 VE1JS JohnNS K3 3486 N4LCD PaulGA K3 350 W4CCS Scott GA K3 2090 K4GCJ Garry NC K3 1597 K4AEN Tom VA K3 3497 KY1RK Robert NC K3 1461 W4TMCaryVA K3 3491 KJ4ZM Sam SC Omni 6+ W9DVM PhilFL K3 1605 K2QYJohnNY K3 3845 K8MBY PhilOH K3 609 N9YKE Don WI K3 2505 KA1OZ DickMA K3 859 WB8RAE BillNY K3 2389 AB4THarry NC K3 1471 KB9AVS Steve IN K3 2443 K7SJRoger WA K3 75 AB2TC Ken NY K3 82 K8EAG Gil MI K3 95? KA5KKT DickKY K3 1030 ZL1PWD Peter NZ K3 139 AC9DDickCA K3 3697 K4KBB JohnNC K3 2566 VE4QZ DougMB K3 1021 W8YMO Harry OH K3 166 K1BBM JohnMA K3 2579 K4CCH Charlie GA K3 3509 W1LGX DaleME TS440 W6VYBob CA K3 2765 KB0YH Gus CO K3 441 KA8PDan MI K3 3320 AE6IC FredCA K3 2241 NQ3NBob NJ K3 2829 W2RWA DickNY K3 2603 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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Re： Attenuator and RF Gain Settings
Thanks Johny,that's the best way to operate any radio,unfortunately it has a small negative part and is that the S meter will move up been out of calibration when you turn the RF gain counterclockwise but that's not a big deal after all.Only radio I remember will read always the same S level no matter where you set the RF gain is the TT Orion that I owned for a year. So we all are waiting still for the P4 right ? AD4C "For a refined ham it is compulsory to own a k3" --- On Mon, 2/1/10, Johnny Siu wrote: From: Johnny Siu Subject: Re： [Elecraft] Attenuator and RF Gain Settings To: "Hector Padron" , "Jim Brown" Cc: elecraft@mailman.qth.net Date: Monday, February 1, 2010, 2:56 PM Hello Hector, I concur your view. I always lower the RF gain to a point equal to the band noise in the s meter. I find many operators just let the RF gain always fully clockwise. Of course, 6m will need a bit more sensitivity. 73 Johnny VR2XMC - 郵件原件 寄件人﹕ Hector Padron 收件人﹕ Jim Brown 副本(CC) elecraft@mailman.qth.net 傳送日期﹕ 2010/2/1 (一) 10:09:07 PM 主題： Re: [Elecraft] Attenuator and RF Gain Settings I am 61 years old and more than 40 as a ham and always since I started on hamradio with the tube type receivers has used the volumen control almost to the maximun and then control the signal with the RF gain control,no matter which radio you will be using,this is the best way to cut down band noise and close freq QRM,,without a doubt the K3 is the highest performer in the market and doing this it will work even better,I have never used my preamp,not even on 10M,the K3 has enough sensitivity not to use it,on 40 and 80M I always have my ATT engaged and I am able to pull any weak dx station no matter how weak it is and even with a strong one at 2Khz away my freq. My two cents. AD4C "For a refined ham it is compulsory to own a k3" --- On Sun, 1/31/10, Jim Brown wrote: From: Jim Brown Subject: [Elecraft] Attenuator and RF Gain Settings To: "elecraft@mailman.qth.net" Date: Sunday, January 31, 2010, 10:09 PM On Sun, 31 Jan 2010 14:23:33 -0500, Brian Machesney wrote: >For the first time, I turned on the K3's ATT and found that I was even >better able to separate callers, particularly when trying to pick out >relatively weaker EU signals from stronger NA signals responding to my CQ. Those of us with lots of grey hair learned 50 years ago that the most important control on our receiver was the RF Gain. They didn't come with attenuators or preamps in those days, but we also learned to switch them to a shorter antenna when they got overloaded. With a modern radio, on bands below 20M, the ATTenuator should almost always be ON and the PREamp should almost always be OFF for the greatest ability to separate weak signals from strong ones. On 20M you can usually turn off the ATTenuator, but you may not need the preamp until you go to higher bands. Another hint -- to pull really weak ones out from between strong signals, turn down the RF gain to the point where you are just hearing the weak one. During the 160M contest this weekend, preamp was off, ATT was on, and my RF gains were at about 2'o'clock. 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 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 2M with K3 - anyone doing it?
Hi Mike, I use my K3 and XV144 transverter in my 2m portable contest station. There is a short video on YouTube at RSGB VHF National Field Day here:- http://www.youtube.com/watch?v=YJUN9qUFJYM It makes for a competitive contest setup. I also use my K3 with a modified XV50 for the 70Mhz band here in the UK. HF transceiver and good transverter beats a dedicated mono band VHF rig every time for me. 73 Allan GM4ZUK -Original Message- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Michael M. Raskin Sent: 31. januar 2010 03:35 To: elecraft at mailman.qth.net Subject: [Elecraft] 2M with K3 - anyone doing it? I recently picked up a used THL 500V 2M amp. I want to drive it with my K3, which has no 2M capability. The K144KV-F internal 2M module only has 10 Watts output, which is not enough to drive the THP 500V to 500 Watts. The KV144 2M transverter has enough power to do it, but it has to be external and is a kit, something difficult with my increasing age. Since Elecraft does not plan to have an internal 2M module with more than 10 Watts, would I be better off with the external transverter since I want to do 2M terrestrial as well as EME? Or should I give up on the K3 for 2M EME and wait for the new ICOM to be released? Mike, W4UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 & 160m rx antennas
I run a K3 with a 500w amp. No aux receiver. I use an 8' receiving loop on 160m. It is rotatable & fed into an ICE 135b preamp then to the K3 Rx ant connector. Transmitting ant. is a simple OCF dipole @50'. Not as good as the L probably. I have had the loop up just this winter. From NW Tn the loop is better most of the time receiving SA than the dipole. Most other directions it's equal or worse MOST of the time.But every day is different. During CQ WW 160m PY0F was always better with the dipole. The week before the contest the loop was two S units better to PY0F. Last night YV1DIG was also two S units better on the dipole. Some nights the UAs are a bit better on the loop. I run the K3 pre amp all the time. Either antenna.I have the 1.8/.400 & .250 8 pole filters. I normally run at .200 bandwidth.I only operate CW. Some mornings I hr. JA well & some mornings NADA. It depends on the Flux. When the A & K are low I hear the best. What I do is as soon as I hr. the DX I punch the loop in to see which is hearing better. The back ground noise level is obviously lower on the loop & so are the signals. We are in different parts of the country so we'll have propagation differently.This is no expert opinion just what I've observed. CU in the pile ups K9IL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Popping out of diversity mode
During the contest this past weekend, my K3 would pop out of diversity mode on it's own, from time to time. This occurred when running or during S&P. I don't think I was doing anything to cause it, but it's not out of the question. Has anyone else experienced this? thanks for all the K3 and K2 QSOs :o) 73, Julius n2wn - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/Popping-out-of-diversity-mode-tp4496550p4496550.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] Popping out of diversity mode
Were you using the K3 as a computer peripheral or in standalone radio mode? Grant/NQ5T On Feb 1, 2010, at 2:05 PM, Julius Fazekas n2wn wrote: > > During the contest this past weekend, my K3 would pop out of diversity mode > on it's own, from time to time. This occurred when running or during S&P. > > I don't think I was doing anything to cause it, but it's not out of the > question. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Popping out of diversity mode
On Mon, 1 Feb 2010 12:05:01 -0800 (PST), Julius Fazekas n2wn wrote: >During the contest this past weekend, my K3 would pop out of diversity mode >on it's own, from time to time. This occurred when running or during S&P. For a long time, I've had problems with the two RX losing sync in diversity mode. Symptom is that one RX is several hundred Hz from the other after a transmission. Wiggle the RX RIT knob and they re-sync. I've corresponded with Wayne on this. He has no ideas why, and has not been able to reproduce it. One hypothesis is RFI. It only happens on 160, and my TX antenna is only 25 ft from the shack, with only wood walls in the way. It happened only a few times this weekend with 100W, but a lot more often running 1.5kW, so RFI might be part of the mechanism. As you might guess, I've got mondo coax chokes in line. :) 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] Popping out of diversity mode
Hi Grant, I guess you would call it a peripheral, it was connected to the logging computer... - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/Popping-out-of-diversity-mode-tp4496550p4496806.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] Popping out of diversity mode
N2WN wrote: > During the contest this past weekend, my K3 would pop out of diversity mode > on it's own, from time to time. This occurred when running or during S&P. > Julius, This sounds like a software issue. In the ARRL 160 at VE2OJ using N1MM Logger, we forgot to check "Dual RX Always On", and we kept on losing diversity mode whenever we used the software to change the tuning (e.g. RIT from the keyboard). During the CQ 160 CW, we had "Dual RX Always On" checked, and the only time we had problems with diversity mode was when we clicked on a cluster spot with a split frequency. Apart from that, we ran with diversity on almost all the time with no dropouts, except when we deliberately turned it off so we could use the subRX to S&P during a slow run late in the contest. 73, Rich VE3KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Diversity antenna selection oddity
Am I imagining things or did selecting diversity previously automatically put the to receivers on different antennas. The other day I was trying to do some testing to measure filters in each receiver so I was using Diversity to try and get things onto the same frequency and so that I could do measurements on both RXs on the same freq... Anyway I was having a hard time seeing things on the second RX... Until I realized I was doing diversity with both receivers on the same antenna. I could have swore that previously when both RXs were on the same antenna that a long hold of SUB would put me in diversity with two different antennas and then when I exited diversity that it would go back to the way I had things... Am I remembering wrong and mixing dreams with reality or did something recently change? ~Brett (KC7OTG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Popping out of diversity mode
Interesting Jim, and that indeed may be the mechanism. I should have noted exactly where and when it happened. Something is not quite kosher with the antenna on the lower 15 KHz of the band and I've not done anything to improve it (or as I fear ruin an excellent antenna) yet. My TX antenna is as close as yours to the shack. fortunately, didn't really "need" diversity this weekend. QSB wasn't a real issue... QRN and QRM on the other hand *sigh* Think there must have been a LOT of K3s out and about the way folks were packed in the tin ;o) Think Grant may have been heading in the same direction with his post... It wouldn't be the first Top Band RFI issue in this shack, but it's easier to combat and this antenna needs maintenance this Spring anyway. Cheers, Julius - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/Popping-out-of-diversity-mode-tp4496550p4496860.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] P3 Status?
P3 Status? Hey guys on the Mothership, how about a hint? It's been a long time...since August. Please throw us a bone to pick. 73 de N1LQ-Dave K3 #371 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 & Beverages on 160
Another factor may be the ground the beverage runs over. Beverages perform well over poor ground but poorly over good ground such as a saltmarsh. Good luck Gary 73 to all Geoff G3UCK - Original Message - From: "Guy Olinger K2AV" Using a house ground for a signal ground on a beverage will IMPOSE house noise on the beverage, rendering it useless and apparently without pattern. On Sun, Jan 31, 2010 at 12:23 PM, Gary Smith wrote: > It's my understanding the Beverage is supposed to be a quiet antenna > but as mine are not, perhaps there's an obvious reason why mine > behave so badly? #1 is in a salt marsh with nothing around it and #2 > runs along the marsh and terminates just before railroad tracks. > > I surely must be doing something wrong. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Popping out of diversity mode
Julius Fazekas n2wn wrote: > > fortunately, didn't really "need" diversity this weekend. QSB wasn't a > real issue... > Diversity is not just useful for signals from one direction. I used diversity continually this weekend to allow simultaneous copy from two different directions. This could also be done with an external splitter but I like the added flexibility of diversity using Beverages on one input and an RX 4SQ on the other. When running EU I used a phased Beverage pair NE and set the 4SQ NW for Western NA stations. When running JA (wishful thinking!) I also listened NE on the 4SQ for W1-4 stations. Of course for extreme cases I could quickly switch both antennas to the same direction. 73, Bill -- View this message in context: http://n2.nabble.com/Popping-out-of-diversity-mode-tp4496550p4497347.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] Popping out of diversity mode
Thanks Rich, I'll look into that when I get back out to the shack. I still use the knobs to tune, even RIT/XIT, but it's worth checking it out. I was too focused most of the time on making contacts, so missed any "clues". Thanks for the QSOs in both contests, more so in this one, those 5 pointers really matter! Cheers, Julius - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/Popping-out-of-diversity-mode-tp4496550p4497355.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] Diversity antenna selection oddity
KC7OTG wrote: > Am I imagining things or did selecting diversity previously > automatically put the to receivers on different antennas. > Brett, A long hold of SUB puts the second RX in diversity mode, but it does not affect the antenna selection. Holding the RX ANT button toggles the second RX between the transmit antenna (called MAIN) and the second antenna (AUX). 73, Rich VE3KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FS: KIO2 + KAF2
For sale, fully functional KIO2 + KAF2 (have decided to keep my K2 simple). $50 shipped (CONUS) for the KIO2, $40 shipped (same) for the KAF2. Please reply off list. 73 de Bob Brown, N1CVX sashan...@yahoo.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] Begali Magnetic Traveler Light magnetic paddle (for K1?)
Mint Begali Traveler Traveler Light magnetic paddle, $290 shipped CONUS. Would also entertain possible trades for late serial no. K1 (preferably 4 band with backlight). Please reply off list. 73 de Bob Brown, N1CVX sashan...@yahoo.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] Diversity antenna selection oddity
I could have swore it changed it for you before... Can anyone think of a time that one would want the two receivers PLL locked and listening to the same antenna? This makes me wonder if I've ever missed that and thought I was doing diversity but instead I was using two receivers to listen to the same antenna. Perhaps this could be an enhancement to go in and out of this... That is of course unless there is a reason that I'm missing why one would want to be in diversity mode yet still have both receivers on the same antenna port. Seems like if that was something one would want to do they could use LINK and then hit A>B twice. But in diversity it seems like that should always be used on two antenna inputs. Thoughts? ~Brett On Mon, 2010-02-01 at 18:22 -0500, Richard Ferch wrote: > KC7OTG wrote: > > > Am I imagining things or did selecting diversity previously > > automatically put the to receivers on different antennas. > > > > Brett, > > A long hold of SUB puts the second RX in diversity mode, but it does not > affect the antenna selection. Holding the RX ANT button toggles the > second RX between the transmit antenna (called MAIN) and the second > antenna (AUX). > > 73, > Rich VE3KI > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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 mods and methods: smt resistor/capacitor de-soldering
We've got a tech who is amazing with a soldering iron. He has two very nice soldering irons on the bench next to him at all times. All this guy does is work magic with a soldering iron all day long... His two irons are one with a bit of a cup in the end of the tip (for holding solder) and the other is a smaller pencil type. If he simply wants to remove a small 2 in SMT component he just sets the largest tip over the top of the part and then slides it off the pads. The only time he uses both irons is if he needs to reuse that SMT component. If he's doing that he then just uses the two irons and simply picks the component up with the irons (one in each hand) that way the tweezers aren't needed... Just a few other thoughts... ~BTH On Mon, 2010-02-01 at 07:13 -0800, David Windisch wrote: > It's a process, it's easier than you think, and there is plenty of room for > creativity. I don't pretend to know it all; this works for me. > > BASICS: > > Light up the work area. > > Get comfortable seating. > > Buy a pull-down magnifier. Don't skimp here. I use OPTI-VISOR, 3X lenses. > Buy 2 of the physically-smallest low-power soldering pencils. > Buy a *large* decorative clothes pin. > Buy various-length, variously-shaped stainless tweezers. > > Attach the pencils to the clothes pin. Hose-clamps? > Shim the jaws open so the pencil-tips get proper spacing to (just) clear the > device, or a skosh less to grab it. > > OPTIONAL: Take a dose of your favorite relaxation agent . > > Take your time. Practice on junk boards: heat, tweeze, pluck. > > Now you can remove any smt you can get this contraption on to. > > Ymmv. No pics available. I'm omitting the green stuff and presenting only > basics. Real tools cost BIG bucks. > > Brgds, Dave, W8FGX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] IT IS ALIVE
My XV50 is up and running... Been a lot of fun working through the problems I had getting it to this point. ( mostly at my own hand :) But it's cooken now ! Thanks to all who help me complete this particular project. I have but one other peace of equipment to complete the Elecraft shack. That will be an XV144 QRV from 160 to 144 including 60 with one rig... Priceless ! 73 all Jerry N0JRN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Number 3903 is rising from the bags of bolts and boards
It arrived. 2 1/2 hours building so far, and it is starting to look like a radio. Too much coffee, and I may call it a night, before I start messing up. :>) http://www.gotoloveland.com/pictures2/K3-1.jpg -- View this message in context: http://n2.nabble.com/K3-Number-3903-is-rising-from-the-bags-of-bolts-and-boards-tp4498960p4498960.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] New Power Supply
Hello friends: I am using a Samlex SEC1223 with my K3. I have some "electric-noise" on low bands (80 and 40 meters) and i think it comes from the power supply. I have been reading other friends with the same problem. I want test another one. What is your recomendation? Thank's a lot. -- Rubén Navarro Huedo - EA5BZ http://www.palotes.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
