Re: [Elecraft] KXPA100 f/w 1.28 now production released
Wow Matt, Thank you, Thank you, Thank you. I've been off the air since last Saturday trying to diagnose my problem. I had problems last Saturday and people were saying my signal was breaking up. I originally thought there was something wrong with my transceiver or settings. I carefully traced everything and monitored output from the transceiver and decided that although some settings could be improved (which I did) that wasn't the reason. I then thought that perhaps the issue was the 1/2" of ice I had on the antenna that night, so after checking everything else I decided to go back on the air tonight. And sure enough my signal was breaking up again, even though it hadn't earlier during testing. This time I even though I was wearing headphones and with the background static I thought I heard a click from the amplifier. I was (still am!) on a net at the time (HHH Net), so I qsy'd down 4 Khz and did some testing, and I noticed the SWR kept going from 1.0 to much higher values, with the amp kicking out. I then remembered reading your email. Went back and read it again and wondered if I was experiencing the same thing you were. Sure enough, moved back to 1.09 and the problem is gone. Of course, there have been some fixes after 1.09 for other problems I've experienced, so hopefully Elecraft will get this one fixed soon. Thanks again! John On 5/16/2014 10:06 PM, Matt VK2RQ wrote: Elecraft is right on top of it; I'm also confident we'll have a solution fairly soon. 73, Matt VK2RQ On 17 May 2014, at 1:52 pm, Ron Cowherd wrote: Yes, I have also had similar problems with the KXPA100 (SN#0876)and have already composed and sent a letter to support. The letter is much too detailed to reproduce here but I also suspected a firmware glitch. My unit was working flawlessly until the upgrade. I'm sure the problem will soon be solved. 73, Ron K4GYD Sent from my iPad On May 16, 2014, at 6:56 PM, Matt VK2RQ wrote: How are people finding this new firmware? I've been having problems recently with my KXPA100, where it intermittently shows high SWR for a brief moment, and then either recovers or puts itself in bypass. At first I thought I had an issue with my antenna, but I discovered it was happening with a dummy load too. It mostly happens on SSB, but it happens to a lesser extent CW. It also happens with both my KX3 with integrated cable, and with my K2 using the keying line. I pulled the amp apart, looking for poor connections and dry joints, but no success there. By gently blowing across the mike, I was able to get it into the failure mode, and stay there. The SWR bridge in the amp was reading high. I had a crossneedle SWR meter between the radio and the amp, but as I blew progressively harder into the mike, the SWR on the meter was low. Then, once the power applied reached a certain level, the amp would come good again. This made me suspect whether the band auto-sensing may have been switching in a wrong LPF? Then last night, I reflashed the amp with release firmware 1.28, but still had the problem. Then I downgraded the firmware on the amp from 1.28 to 1.09, which was the release my amp was shipped with. I haven't observed or been able to reproduce the problem since. This is now leading me to suspect a possible bug in the 1.28 firmware? I'm wondering if anyone else may have observed any strange glitches with the 1.28 firmware? 73, Matt VK2RQ On 3 May 2014, at 2:14 am, Eric Swartz - WA6HHQ, Elecraft wrote: KXPA100 Production Firmware MCU 1.28 has been released to production status and is now shipping. Important: This version of firmware has new features that require the very latest KXPA100 Utility. We recommend all KXPA100 owners upgrade to the latest KXPA100 utility and to KXPA100 MCU 1.28. Some of the Key Changes in this release: - Better tolerates forward and reflected power overshoot for brief periods to support external antenna tuners. Use approximately 10-20 watts of KXPA100 output when tuning. - When the attenuator is acquired because of SWR or high reflected power, release attenuator immediately on next key up if SWR has been reduced to 3:1 or less. - Update band voltage tables for ICOM 703 and Yaesu FT-817 - Reduce power required for ATU tune. - Add per-band Antenna configuration (requires the new KXPA Utility for user interface) - Improved RS232 handling for 3rd party applications. (Ham Radio Deluxe v6.2, PigKnob, etc.) 73, Eric elecraft.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 Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/li
Re: [Elecraft] K3 KX3 running winmor
Rick Muething reported his team would fix this problem "real soon now" in Feb. Someone decided that having the "USB Digital" button was a bad idea, so they removed the option, or broke it. The solution I use is a workaround. Wait for the end of the first TX, then change the mode to DATA A. I used a macro for this. The mode is only set just prior to the first TX. 73, matt W6NIA / NNN0UET On Fri, 16 May 2014 22:41:48 -0700, you wrote: >I'm running RMSExpress 1.2.27.0 / WINMOR 1.5.7.0 and I'm seeing the same >problem. It clicks the K3 over to USB mode instead of DATA mode. USB >Digital is selected in WINMOR setup too. > >The bug was reported back in Jan (I believe) and from what I can see it >hasn't been fixed. > >Frank >KG6EYC > > >On Fri, May 16, 2014 at 4:55 PM, Joel Black wrote: > >> Hmm... I don't seem to have this issue with my K3. I use RMSExpress and >> WINMOR on both amateur bands and MARS frequencies. >> >> Make sure you're running the latest version of RMSExpress and WINMOR. >> There was an issue with a version released since the beginning of the year >> where the radio would go into USB mode instead of DATA A. >> >> 73, >> Joel - W4JBB >> >> >> On 5/16/14, 9:54 AM, K7JLTextra wrote: >> >>> I run Winmor on my K3 & KX3 and find it very frustrating that Winmor >>> resets the mode back to SSB with each automatic frequency change. I need >>> the mode to be set to DATA A so that the compression & Equalizers are >>> disabled, ALC is optimized, and for the K3 the rear panel connectors are >>> enabled. Are there other Winmor user that would like to see the WL2K >>> development group make some changes to fix this problem? >>> >>> John Hendricks K7JLT >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w4...@charter.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 >> Message delivered to vad...@gmail.com >> Matt Zilmer, W6NIA -- "Give me six hours to chop down a tree and I will spend the first four sharpening the axe." -A. Lincoln __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] 4M operation and 4M/2M modules
I have a couple of questions for Elecraft and for our UK friends. My wife and I make 3-4 trips per year to Scotland to visit family in the Borders and a vacation home in Clackmannanshire. So the new 4M module for the KX3 is exciting *if* I'm able to operate MM/N7DH on that band. Can anyone tell me if the fact that we don't don't have 4M privileges in the U.S. prohibit me from using the 70-MHz band in the U.K.? Also... I understand that the KX3 will accept only one of these at a time, but will it be fairly easy to swap the 2M and 4M modules when I travel and is it risky to other boards in the KX3 if I do this a few times a year? 73, Dennis Haarsager, N7DH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] NAQCC Sprint Announcement
NAQCC Sprint Wednesday night! Our May Sprint is this coming Wednesday evening local time (May 21, EDT - 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM), which translates as Thursday May 22, 2014 0030-0230Z in all cases. I will refer you to the proper URL: http://www.naqcc.info/sprint201405.html There you will find all the details as to time, frequencies and other important information. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate (this includes QRO); but you must use QRP power levels to compete for awards. If you've been hesitant to join in our sprints because you hear other sprints running at breakneck speeds, have no fear. Our sprints are geared to the newcomer to CW and/or contesting. Virtually everyone including the many veteran contesters who regularly enter our sprints will slow down to YOUR speed to help you make your contacts. If you are not already a member of NAQCC... membership is FREE! Sign up on the NAQCC website today (http://naqcc.info/) and receive a handsome certificate, with your membership number on it, which is good for life. Come join us and have a real good time! 72/73 de Dave VA3RJ NAQCC #0004 for NAQCC http://naqcc.info/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 4M operation and 4M/2M modules
Yes, Dennis, you may indeed operate on the 70.0-70.5MHz band when operating in the UK under the terms and conditions of the CEPT Licence. For Full Licence holders the maximum PEP is 160 Watts (22 dBW) and for Intermediate Licence holders the maximum PEP is 50 Watts (17 dBW). The band is Secondary; Available on the basis of non-interference to other services inside or outside the UK. Grab a copy of the CEPT Licence (T/R 61-01) from http://www.erodocdb.dk/docs/doc98/official/pdf/TR6101.pdf The UK Licence Terms, conditions and limitations are at http://www.g4dmp.co.uk/UKlicence.pdf I cannot comment on swapping the KX3 transverters from 2m to 4m, but I recall reading somewhere that it will not be a 5 minute job. I hope that helps. 73 de David G4DMP In a recent message, Dennis L. Haarsager writes I have a couple of questions for Elecraft and for our UK friends. My wife and I make 3-4 trips per year to Scotland to visit family in the Borders and a vacation home in Clackmannanshire. So the new 4M module for the KX3 is exciting *if* I'm able to operate MM/N7DH on that band. Can anyone tell me if the fact that we don't don't have 4M privileges in the U.S. prohibit me from using the 70-MHz band in the U.K.? Also... I understand that the KX3 will accept only one of these at a time, but will it be fairly easy to swap the 2M and 4M modules when I travel and is it risky to other boards in the KX3 if I do this a few times a year? 73, Dennis Haarsager, N7DH -- David G4DMP Leeds, England, UK --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.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 Message delivered to arch...@mail-archive.com
[Elecraft] K2 #6951 "It's Alive!"
After several years of sitting in the cabinets of my shack, I decided to put my wife's K2 together. She decided that she is too busy with work, studying for a masters in computer programming, and social obligations in general that there just isn't enough time. I think it is because at "xx" years old it's hard for her to see the parts. So, number 6951 is now completed. Although it is a 15W version, it does have the SSB, DSB, NB, ATU, internal battery and IO board options. It took about 2 1/2 weeks of off and on evenings and weekends to complete. It all works great which is a testament to the folks who wrote the manuals. Only one missing part (out of thousands): a RF choke for the I/O board which even during Dayton, I received a confirmation from Elecraft service will be shipped on Monday. First test contact: Venezuela 10W to a vertical on 20M SSB. So we are now a 2 K2 family or is that K2-squared? Oh, and a K3, P3, KPA500, KAT500, KX3, KXPA100.got to love that purple Kool Aide. -- John Fritze Jr K2QY k...@arrl.net ACACES president 2014 Albany County RACES Radio Officer ARES ENY DEC Northern District Hudson Div. Asst. Director Twitter: @k2qy 401 261 4996 (cell) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 4M operation and 4M/2M modules
I believe Wayne responded that the connectors were not designed for repeated insertion/removal and could lead to failure. Tighe NK4I On 5/17/2014 11:48 AM, David Pratt wrote: Also... I understand that the KX3 will accept only one of these at a time, but will it be fairly easy to swap the 2M and 4M modules when I travel and is it risky to other boards in the KX3 if I do this a few times a year? 73, Dennis Haarsager, N7DH -- Tighe Kuykendall NK4I | www.NK4I.com | Follow Me on Twitter: @NK4I ARRL Life Member, NAQCC #6467 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] 4M operation and 4M/2M modules
Wayne has already stated that the internal connection are not suitable for repeated disconnect/connect processing. So that would say your idea is not a good one to consider. if you wan the 4M module then install that but do not expect to be changing over to the 2M module anything like maybe once? Looking at the small coax connectors I think they will deform fairly quickly from that. Sorry, Ed - KL7UW From: "Dennis L. Haarsager" To: "Elecraft@mailman.qth.net" Subject: [Elecraft] 4M operation and 4M/2M modules I have a couple of questions for Elecraft and for our UK friends. My wife and I make 3-4 trips per year to Scotland to visit family in the Borders and a vacation home in Clackmannanshire. So the new 4M module for the KX3 is exciting *if* I'm able to operate MM/N7DH on that band. Can anyone tell me if the fact that we don't don't have 4M privileges in the U.S. prohibit me from using the 70-MHz band in the U.K.? Also... I understand that the KX3 will accept only one of these at a time, but will it be fairly easy to swap the 2M and 4M modules when I travel and is it risky to other boards in the KX3 if I do this a few times a year? 73, Dennis Haarsager, N7DH 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 121, Issue 34
Hi Dennis My understanding is that it is your licence conditions that stand. Although if local conditions restrict then they take precedence I.e. UK is 144 -146 MHz US is up to 148 MHz but I cannot. Plus you may have KW limit but in the UK it's 400w That's why a lot have dual licenses Hope this helps Kevin G7KXZ mostly portable ;) Sent from my iPhone5 > On 17 May 2014, at 17:00, elecraft-requ...@mailman.qth.net wrote: > > Send Elecraft mailing list submissions to >elecraft@mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit >http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to >elecraft-requ...@mailman.qth.net > > You can reach the person managing the list at >elecraft-ow...@mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. 4M operation and 4M/2M modules (Dennis L. Haarsager) > 2. NAQCC Sprint Announcement (NAQCC) > 3. Re: 4M operation and 4M/2M modules (David Pratt) > > > -- > > Message: 1 > Date: Sat, 17 May 2014 10:39:56 -0400 > From: "Dennis L. Haarsager" > To: "Elecraft@mailman.qth.net" > Subject: [Elecraft] 4M operation and 4M/2M modules > Message-ID: > > Content-Type: text/plain; charset=UTF-8 > > I have a couple of questions for Elecraft and for our UK friends. > > My wife and I make 3-4 trips per year to Scotland to visit family in the > Borders and a vacation home in Clackmannanshire. So the new 4M module for > the KX3 is exciting *if* I'm able to operate MM/N7DH on that band. Can > anyone tell me if the fact that we don't don't have 4M privileges in the > U.S. prohibit me from using the 70-MHz band in the U.K.? > > Also... I understand that the KX3 will accept only one of these at a time, > but will it be fairly easy to swap the 2M and 4M modules when I travel and > is it risky to other boards in the KX3 if I do this a few times a year? > > 73, > Dennis Haarsager, N7DH > > > -- > > Message: 2 > Date: Sat, 17 May 2014 11:48:11 -0400 > From: "NAQCC" > To: elecraft@mailman.qth.net > Subject: [Elecraft] NAQCC Sprint Announcement > Message-ID: <20140517154811.3e31140080...@sheppard.torfree.net> > Content-Type: text/plain;charset="iso-8859-1" > > NAQCC Sprint Wednesday night! > > Our May Sprint is this coming Wednesday evening local time (May 21, EDT - > 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM), which > translates as Thursday May 22, 2014 0030-0230Z in all cases. > > I will refer you to the proper URL: > > http://www.naqcc.info/sprint201405.html > > There you will find all the details as to time, frequencies and other > important information. > > This is a monthly event that caters to the CW veteran, the CW newcomer, > straight key and bug fans. All are welcome to participate (this includes > QRO); but you must use QRP power levels to compete for awards. > > If you've been hesitant to join in our sprints because you hear other sprints > running at breakneck speeds, have no fear. Our sprints are geared to the > newcomer to CW and/or contesting. Virtually everyone including the many > veteran contesters who regularly enter our sprints will slow down to YOUR > speed to help you make your contacts. > > If you are not already a member of NAQCC... membership is FREE! Sign up on > the NAQCC website today (http://naqcc.info/) and receive a handsome > certificate, with your membership number on it, which is good for life. > > Come join us and have a real good time! > > 72/73 de Dave VA3RJ > NAQCC #0004 > > for NAQCC > http://naqcc.info/ > > > > -- > > Message: 3 > Date: Sat, 17 May 2014 16:48:31 +0100 > From: David Pratt > To: "Dennis L. Haarsager" > Cc: "Elecraft@mailman.qth.net" > Subject: Re: [Elecraft] 4M operation and 4M/2M modules > Message-ID: <6qreqvcpt4dtf...@g4dmp.fsnet.co.uk> > Content-Type: text/plain;charset=us-ascii;format=flowed > > Yes, Dennis, you may indeed operate on the 70.0-70.5MHz band when > operating in the UK under the terms and conditions of the CEPT Licence. > For Full Licence holders the maximum PEP is 160 Watts (22 dBW) and for > Intermediate Licence holders the maximum PEP is 50 Watts (17 dBW). The > band is Secondary; Available on the basis of non-interference to other > services inside or outside the UK. > > Grab a copy of the CEPT Licence (T/R 61-01) from > http://www.erodocdb.dk/docs/doc98/official/pdf/TR6101.pdf > > The UK Licence Terms, conditions and limitations are at > http://www.g4dmp.co.uk/UKlicence.pdf > > I cannot comment on swapping the KX3 transverters from 2m to 4m, but I > recall reading somewhere that it will not be a 5 minute job. > > I hope that helps. > > 73 de David G4DMP > > In a recent message, Dennis L. Haar
[Elecraft] KX3 and KAT500
I have been experimenting with my KAT500 and the KX3. Although I do have a K3 and KPA500 configured with the KAT500 using the switched arrangement described by the KE7X KX3 book, the K3 is powered off and the KPA500 is in standby mode during these experiments. Although the KAT500 user manual says that to start a tune cycle, at least 10 watts needs to be provided. So, my KX3 is right on the border line and from my experience in this setup, it DOES NOT initiate a tune cycle in the KAT500. Has anyone else been successful in initiating tune cycles for the KAT500 at 10 watts from the KX3. My method is to VFO to the desired frequency, make sure that the KAT500 is switched to the right antenna, and then key down for tuning. Note: I do not make use of the KX3 built in tuner (I am assuming that I should not given I have a low SWR to the KAT500). Also, given that my KAT500 is totally programmed across the bands for my two antennas, will the KX3 provide enough power (at 10 watts or under) to initiate the memory lookup for a tuned segment (I have programmed each 20 KHz segment on 80 and higher frequency bands using my K3). Is 5 watts supposed to be sufficient for locating the proper memory stored tuned LC parameters? I have not found this to be so (but, here I am not positive of the starting conditions and may need to do this test over, it was getting late last night). Thanks for any help you can be. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 and KAT500
Hi Phil, I routinely use my KAT500 at the end of a 100' LMR400 cable run with my IC7200 (my backyard and to go rig) using the TUNE button which has power fixed at 10W. Actually the measured tune power is more like 8 or 9W. So it's puzzling that your 10W from KX3 will not activate the tuner. Are you sure the KX3 is producing anything close to 10W? If I am not mistaken, with recent firmware changes, the KAT500 should tune all the way down to 5W. AB2TC - Knut Phil Hystad-3 wrote > I have been experimenting with my KAT500 and the KX3. Although I do have > a K3 and KPA500 configured with the KAT500 using the switched arrangement > described by the KE7X KX3 book, the K3 is powered off and the KPA500 is in > standby mode during these experiments. > > Although the KAT500 user manual says that to start a tune cycle, at least > 10 watts needs to be provided. So, my KX3 is right on the border line and > from my experience in this setup, it DOES NOT initiate a tune cycle in the > KAT500. > > Has anyone else been successful in initiating tune cycles for the KAT500 > at 10 watts from the KX3. My method is to VFO to the desired frequency, > make sure that the KAT500 is switched to the right antenna, and then key > down for tuning. Note: I do not make use of the KX3 built in tuner (I am > assuming that I should not given I have a low SWR to the KAT500). > > > Also, given that my KAT500 is totally programmed across the bands for my > two antennas, will the KX3 provide enough power (at 10 watts or under) to > initiate the memory lookup for a tuned segment (I have programmed each 20 > KHz segment on 80 and higher frequency bands using my K3). Is 5 watts > supposed to be sufficient for locating the proper memory stored tuned LC > parameters? I have not found this to be so (but, here I am not positive > of the starting conditions and may need to do this test over, it was > getting late last night). > > Thanks for any help you can be. > > 73, phil, K7PEH > -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-and-KAT500-tp7589199p7589200.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 4M operation and 4M/2M modules
> is it risky to other boards in the KX3 if I do this a few times over a > year Yes. The connectors are rated for only a very small number of insertion/removal cycles. 73 Wayne N6KR > Dennis Haarsager, N7DH > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
[Elecraft] Summary post
Twice this week blank summary e mails. Got a normal one a few hr.s later. Anyone had this? 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 Message delivered to arch...@mail-archive.com
[Elecraft] Fwd: 4M operation and 4M/2M modules
Thanks very much, Wayne (also to the other replies). I will stick to the 2M version. 73, Dennis N7DH, MM/N7DH On Sat, May 17, 2014 at 4:02 PM, Wayne Burdick wrote: > > > is it risky to other boards in the KX3 if I do this a few times over a > > year > > Yes. The connectors are rated for only a very small number of > insertion/removal cycles. > > 73 > Wayne > N6KR > > > > Dennis Haarsager, N7DH > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to n...@elecraft.com > -- Dennis L Haarsager, President/Executive Director Public Television Major Market Group, LLC; PO Box 617, Purcellville, VA 20134 540.668.6435, m 202.280.3988, f 866.587.3403 http://www.twitter.com/haarsager - @haarsager -- Dennis L Haarsager, President/Executive Director Public Television Major Market Group, LLC; PO Box 617, Purcellville, VA 20134 540.668.6435, m 202.280.3988, f 866.587.3403 http://www.twitter.com/haarsager - @haarsager __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KXPA100 f/w 1.28 now production released
Hi Matt, I've had the amp here for just over a week, and installed firmware 1.28 after I finished assembly. I do not have the built-in ATU and am running the amp through a Kenwood AT-130 manual tuner. At this stage, I've only used the tuner 'straight through' because the antenna is resonant at the low end of 40m which is the only band I've used on-air. I've been driving the amp with an Argonaut 539 set on 3 watts output, which yields about 80W from the amp. The only connection between the 539 and the amp is a home-made keying line (coax). I've had one CW contact and one SSB contact with nothing odd observed. The SSB contact was last night for about 20 minutes which was to check if I had the radio and mic behaving, and the report to me was all good. After assembly last week, I did extensive checking of amp output into a dummy load at various input power levels, up to 7 watts with the attenuator in and out of circuit. Again, nothing unusual. Could it be an ATU-related problem? Cheers, Bernie. VK2WJ. Message: 24 Date: Sat, 17 May 2014 14:06:56 +1000 From: Matt VK2RQ To: Ron Cowherd Cc: Elecraft Reflector Subject: Re: [Elecraft] KXPA100 f/w 1.28 now production released Message-ID: <91202e0b-924f-4cf9-9938-086ced910...@gmail.com> Content-Type: text/plain;charset=us-ascii Elecraft is right on top of it; I'm also confident we'll have a solution fairly soon. 73, Matt VK2RQ > On 17 May 2014, at 1:52 pm, Ron Cowherd wrote: > > Yes, I have also had similar problems with the KXPA100 (SN#0876)and have already composed and sent a letter to support. The letter is much too detailed to reproduce here but I also suspected a firmware glitch. My unit was working flawlessly until the upgrade. I'm sure the problem will soon be solved. > > 73, Ron K4GYD > > Sent from my iPad > >> On May 16, 2014, at 6:56 PM, Matt VK2RQ wrote: >> >> How are people finding this new firmware? [... remainder deleted by VK2WJ, a digest recipient...] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Fwd: 4M operation and 4M/2M modules
You still have another option, Dennis: Buy a second KX3 so you got one for 2 and one for 4 m. ;-) 73, Olli Contest, DX & radio projects: http://www.dh8bqa.de Am 17.05.2014 22:17, schrieb Dennis L. Haarsager: Thanks very much, Wayne (also to the other replies). I will stick to the 2M version. 73, Dennis N7DH, MM/N7DH On Sat, May 17, 2014 at 4:02 PM, Wayne Burdick wrote: is it risky to other boards in the KX3 if I do this a few times over a year Yes. The connectors are rated for only a very small number of insertion/removal cycles. 73 Wayne N6KR Dennis Haarsager, N7DH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 270 foot (ish) Doublet & K3 ATU
My apologies for confusing two different posters to this thread. Partly a consequence of threading and me using two different computers and two different email clients. I want to specifically address this: Rick claims that when using a series connection of two different transmission lines, one coaxial, one window line, changing the length of one (coax) affects something or the other, while changing the length of the other portion (window line) has no effect whatsoever. This is clearly impossible. I suggested earlier that one possibility is common-mode current on the coax that is confusing the instrumentation. Just because a choke is applied doesn't mean that it is actually effective. Rick should not be faulted for assuming that the window line is "low loss" while the coax is not. I have been trying to debunk this myth since 1993 when, "The Lure of the Ladder Line" was published in QST. At that time, I had lots of (snail mail!) correspondence with then Antenna Book editor, Dean Straw, about this. I pointed out that the chart of line loss vs. frequency that had appeared in every ARRL Handbook and Antenna Book since antiquity was wrong (easily noted by inspection). We collaborated on a revision of this chart and I was invited to write something about balanced line use. See: http://k6mhe.com/n7ws/Ladder_Line.pdf published in the ARRL Antenna Compendium Vol 6. I should mention that during this correspondence I pointed out that tuner and balun losses should not be ignored because they could be as detrimental as line loss. I had access to Touchstone, an early professional circuit analysis program, and gave examples of (IMHO) excessively high tuner losses that resulted from low Q components and the misadjustment of Tee type tuners. (Regrettably, I don't have copies of these letters any more.) After doing so, a QST favorite author, Frank Witt had a two-part article about tuner losses published in the April and May 1995, QST. (I wasn't invited to write this one) This month's "Hands-On Radio" column in QST brings up these losses again. Straw wrote the program TLW, bundled with the ARRL Antenna Book, which (again) underestimated window line loss. ARRL has just admitted this and offered a new version that allegedly fixes the problem. (I don't know, I don't have a new enough version to qualify for the update, and I wouldn't use it anyway. AC6LA's programs (ac6la.com) are superior and highly recommended.) Sorry to ramble on this somewhat off-topic thread but I think this is worth mentioning. Wes N7WS On 5/15/2014 12:54 PM, Rick Bates, WA6NHC wrote: [snip] The coax portion of the feed should be as SHORT as possible, in my case it is currently about 10' (2.8 meters). The losses are highest there and the extreme SWR makes it MUCH worse, keep it short; use the best stuff, not the cheap stuff. Changing the length of the coax portion has a HUGE impact on where (or if) the system tunes; the window line, none. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Summary post
On 5/17/2014 1:04 PM, r miles wrote: Twice this week blank summary e mails. Got a normal one a few hr.s later. Anyone had this? Yes. I believe it is caused by cybergastorintestinal distress. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPA100 f/w 1.28 now production released
Yes, I believe this is mainly a problem for people with the KXAT100 ATU. If you don't have the ATU, then from what I've seen it will be unlikely to affect you. 73, Matt VK2RQ > On 18 May 2014, at 6:57 am, Bernie Wills wrote: > > Hi Matt, > > I've had the amp here for just over a week, and installed firmware 1.28 after > I finished assembly. I do not have the built-in ATU and am running the amp > through a Kenwood AT-130 manual tuner. At this stage, I've only used the > tuner 'straight through' because the antenna is resonant at the low end of > 40m which is the only band I've used on-air. > > I've been driving the amp with an Argonaut 539 set on 3 watts output, which > yields about 80W from the amp. The only connection between the 539 and the > amp is a home-made keying line (coax). I've had one CW contact and one SSB > contact with nothing odd observed. The SSB contact was last night for about > 20 minutes which was to check if I had the radio and mic behaving, and the > report to me was all good. > > After assembly last week, I did extensive checking of amp output into a dummy > load at various input power levels, up to 7 watts with the attenuator in and > out of circuit. Again, nothing unusual. > > Could it be an ATU-related problem? > > Cheers, > Bernie. VK2WJ. > > Message: 24 > Date: Sat, 17 May 2014 14:06:56 +1000 > From: Matt VK2RQ > To: Ron Cowherd > Cc: Elecraft Reflector > Subject: Re: [Elecraft] KXPA100 f/w 1.28 now production released > Message-ID: <91202e0b-924f-4cf9-9938-086ced910...@gmail.com> > Content-Type: text/plain;charset=us-ascii > > Elecraft is right on top of it; I'm also confident we'll have a solution > fairly soon. > > 73, > Matt VK2RQ > > > On 17 May 2014, at 1:52 pm, Ron Cowherd wrote: > > > > Yes, I have also had similar problems with the KXPA100 (SN#0876)and have > > already composed and sent a letter to support. The letter is much too > > detailed to reproduce here but I also suspected a firmware glitch. My unit > > was working flawlessly until the upgrade. I'm sure the problem will soon > > be solved. > > > > 73, Ron K4GYD > > > > Sent from my iPad > > > >> On May 16, 2014, at 6:56 PM, Matt VK2RQ wrote: > >> > >> How are people finding this new firmware? > > [... remainder deleted by VK2WJ, a digest recipient...] > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 270 foot (ish) Doublet & K3 ATU
For clarity: every line has loss. Every single line. What should have been better implied is that coax exhibits a significantly higher loss per foot than window line; while both have losses. This is well proven over decades of use. High SWR affects the losses in a negative way (the losses increase). Since coax already has a higher loss, it can be substantially higher with the same high SWR than window line. So, when a mixed feed system is used, it makes sense to minimize the losses through the coax to reduce the overall losses; keep the coax short. Side notes: since coax is often more subject to bending than window/ladder line, the internal spacing between elements will vary, potentially increasing the risk of failure while handling high RF voltages. On the flip side, precip or nearby objects (rain gutter) affect window/ladder line, sometimes dramatically. Result: Use "the good stuff" and keep everything as isolated from unrelated objects as possible. As I've said many times; every station is a collection of compromises. In making any choice, one reduces the potential options. In my case, operational ability and efficiency were brought to an acceptable (to me) level through these choices and limitations. I started with 340' feet of wire, center fed (opposing 5/8 wave at 75 meters) and 70' of window line. Changing to 100' of window line had no significant effect (it changed the tuner values but not where I could operate with an acceptable SWR). Changing from 10' of coax from rig to the CMC (common mode choke, typically incorrectly called a current balun, used at the shack window) to ~35' has a significant change in tuning and band use ability. It allows me to operate above 300W on the bottom end of 80 meters when 10' makes it dicey (tuner matches, but can't handle/maintain the match above 300 watts). So it isn't impossible, it's empirically determined. Changing the 1:1 CMC to a 4:1 CMC (same everything otherwise) added low power (<200 watts) 160 meter ability (2:1 or worse, tuned) and substantially lowered the unmatched (bypassed) SWR on all bands. If what I read is accurate, the 4:1 also has a slightly higher loss in efficiency than the 1:1. It conveniently converts window line to coax (my preference in a shack) in this model. [I'm still planning on adding 12 meters more wire (17.5' each leg) to the antenna to lower the resonant frequency on 80 meters. It should also help match on 160, but may cost me elsewhere.] Ideally the KAT500 would be balanced feed capable with a CMC built in. I have a couple capable balanced feed tuners, but they're manual only, not useful for remote ops (about a quarter of my radio time). But then also ideally, I'd be wealthy, not live in an HOA and CCR infested development, not near an airport runway, in a ham tower friendly county with tall trees and salt water nearby. ;-) choices:options I do really need to get a good antenna analyzer, but for now my signal is heard and I hear with minimal noise, thanks in part to the CMC (the DX Eng. 10 KW model, which should be bullet proof for the KPA500 and high SWR). The rest is all Elecraft, it really is "the good stuff". ;-) 73, Rick wa6nhc Tiny iPhone 5 keypad, typos are inevitable > On May 17, 2014, at 2:29 PM, "Wes (N7WS)" wrote: > > Rick claims that when using a series connection of two different transmission > lines, one coaxial, one window line, changing the length of one (coax) > affects something or the other, while changing the length of the other > portion (window line) has no effect whatsoever. > > This is clearly impossible. I suggested earlier that one possibility is > common-mode current on the coax that is confusing the instrumentation. Just > because a choke is applied doesn't mean that it is actually effective. > > Rick should not be faulted for assuming that the window line is "low loss" > while the coax is not. I have been trying to debunk this myth since 1993 > when, "The Lure of the Ladder Line" was published in QST. At that time, I > had lots of (snail mail!) correspondence with then Antenna Book editor, Dean > Straw, about this. I pointed out that the chart of line loss vs. frequency > that had appeared in every ARRL Handbook and Antenna Book since antiquity was > wrong (easily noted by inspection). We collaborated on a revision of this > chart and I was invited to write something about balanced line use. See: > http://k6mhe.com/n7ws/Ladder_Line.pdf published in the ARRL Antenna > Compendium Vol 6. > > I should mention that during this correspondence I pointed out that tuner and > balun losses should not be ignored because they could be as detrimental as > line loss. I had access to Touchstone, an early professional circuit analysis > program, and gave examples of (IMHO) excessively high tuner losses that > resulted from low Q components and the misadjustment of Tee type tuners. > (Regrettably, I don't have co
Re: [Elecraft] 270 foot (ish) Doublet & K3 ATU
On 5/17/2014 2:29 PM, Wes (N7WS) wrote: My apologies for confusing two different posters to this thread. Partly a consequence of threading and me using two different computers and two different email clients. I thought that's what having an email client thread emails was supposed to prevent. Then again, I tried it in T-bird and quickly quit -- couldn't find anything again. :-)) Rick claims that when using a series connection of two different transmission lines, one coaxial, one window line, changing the length of one (coax) affects something or the other, while changing the length of the other portion (window line) has no effect whatsoever. I could certainly be wrong on this but I believe the post(s) were simply pointing out that increasing the length of the "balanced" line affects the losses much less than making it shorter with a correspondingly longer coax line. 400 or 600 ohm "ladder line" [open wire line with a minimum number of spreaders] *is* very low loss at HF even at high SWR, so long as the separation is a very small fraction of a wavelength. That's what the coastal marine and HF point-to-point stations used in mid-20th century and KPH/KSM still do. Plastic insulated "window line" is significantly more lossy than ladder line, but still less than coax at higher SWR's. Window line is also sensitive to weather conditions. I have window line down the tower to a DXE 4:1 balun and coax to the shack. KAT500 needs to retune between a rainy and dry day. There was a day when we brought open wire line into the shack. With today's equipment, I really don't recommend that. :-)) 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 as a portable RFI bandscope?
I've pulled my P3 out of my setup to try and go searching for sources of 160/80m RFI. I did a whole house shutdown today and made sure that anything which had a battery was also shut down. That included the fire/burglar alarm system. For the purposes of these two bands my house is "clean." So now I need to do a walk around the area to see if I can locate the sources. I tried a little DC to daylight receiver with little success even with a 1ft diameter 2 turn loop for an antenna. The signals in question are too narrow band and the receiver is too insensitive so the signals are buried in noise. I'm now trying to use the P3 in hopes that its signal processing and averaging and ability to see a broader spectrum might be easier to use than listening to a single frequency. I tried the loop antenna directly into the P3 while powered on a battery and it seems like I could use a bit of gain to get over the input noise of the P3. Have others tried this and if so what sort of preamp, antenna or other setup was used? Right now focused on 160 and 80m. 73 jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 as a portable RFI bandscope?
I just realized I have an unused DXE RPA-1 which I could put in front of the P3. Any thoughts on that? jim ab3cv On Sat, May 17, 2014 at 7:47 PM, Jim Miller wrote: > I've pulled my P3 out of my setup to try and go searching for sources of > 160/80m RFI. > > I did a whole house shutdown today and made sure that anything which had a > battery was also shut down. That included the fire/burglar alarm system. > For the purposes of these two bands my house is "clean." > > So now I need to do a walk around the area to see if I can locate the > sources. > > I tried a little DC to daylight receiver with little success even with a > 1ft diameter 2 turn loop for an antenna. The signals in question are too > narrow band and the receiver is too insensitive so the signals are buried > in noise. > > I'm now trying to use the P3 in hopes that its signal processing and > averaging and ability to see a broader spectrum might be easier to use than > listening to a single frequency. > > I tried the loop antenna directly into the P3 while powered on a battery > and it seems like I could use a bit of gain to get over the input noise of > the P3. > > Have others tried this and if so what sort of preamp, antenna or other > setup was used? > > Right now focused on 160 and 80m. > > 73 > > jim ab3cv > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 as a portable RFI bandscope?
A reminder: Elecraft warned that the preamp in the P3 is sensitive to static discharges, so be very careful connecting/disconnecting the P3 to external antennas. On 5/17/2014 4:47 PM, Jim Miller wrote: I've pulled my P3 out of my setup to try and go searching for sources of 160/80m RFI. I did a whole house shutdown today and made sure that anything which had a battery was also shut down. That included the fire/burglar alarm system. For the purposes of these two bands my house is "clean." So now I need to do a walk around the area to see if I can locate the sources. I tried a little DC to daylight receiver with little success even with a 1ft diameter 2 turn loop for an antenna. The signals in question are too narrow band and the receiver is too insensitive so the signals are buried in noise. I'm now trying to use the P3 in hopes that its signal processing and averaging and ability to see a broader spectrum might be easier to use than listening to a single frequency. I tried the loop antenna directly into the P3 while powered on a battery and it seems like I could use a bit of gain to get over the input noise of the P3. Have others tried this and if so what sort of preamp, antenna or other setup was used? Right now focused on 160 and 80m. 73 jim ab3cv -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 as a portable RFI bandscope?
Jim, Per a previous recommendation from Elecraft, if you want to connect an antenna directly to the input of your P3, you should put a pair of paralleled diodes (in opposite polarity with respect to each other) across the P3 input jack to protect the P3 from a static discharge. I have used a small single-turn magnetic loop tuned to 40 meters to help me isolate a noise source on 40m, and it worked very well. IMHO you really need a proper magnetic loop which inherently has sharp and deep nulls to be able to identify the direction from which the noise is coming. My 40 meter loop was 48" in diameter, and it worked fine without any additional preamplification. However, for the same efficiency, an 80m loop would need to be 8' in diameter which is a bit impractical to carry around. Although I haven't tried it, I'm pretty sure that a 3' or 4' diameter loop tuned to 80m would still provide enough signal for the P3 and should exhibit very sharp nulls to help you locate the noise source. One other suggestion of an antenna that would be much smaller in size, yet would still exhibit nulls is a small ferrite bar antenna similar to that which is used in broadcast band (AM) radios. However, I have no experience with that kind of receiving antenna. Good luck w/ your noise sleuthing! 73, Dale WA8SRA > I just realized I have an unused DXE RPA-1 which I could put in front of > the P3. Any thoughts on that? > > jim ab3cv > > > On Sat, May 17, 2014 at 7:47 PM, Jim Miller wrote: > >> I've pulled my P3 out of my setup to try and go searching for sources of >> 160/80m RFI. >> >> I did a whole house shutdown today and made sure that anything which had >> a >> battery was also shut down. That included the fire/burglar alarm system. >> For the purposes of these two bands my house is "clean." >> >> So now I need to do a walk around the area to see if I can locate the >> sources. >> >> I tried a little DC to daylight receiver with little success even with a >> 1ft diameter 2 turn loop for an antenna. The signals in question are too >> narrow band and the receiver is too insensitive so the signals are >> buried >> in noise. >> >> I'm now trying to use the P3 in hopes that its signal processing and >> averaging and ability to see a broader spectrum might be easier to use >> than >> listening to a single frequency. >> >> I tried the loop antenna directly into the P3 while powered on a battery >> and it seems like I could use a bit of gain to get over the input noise >> of >> the P3. >> >> Have others tried this and if so what sort of preamp, antenna or other >> setup was used? >> >> Right now focused on 160 and 80m. >> >> 73 >> >> jim ab3cv >> >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d...@lightstream.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 as a portable RFI bandscope?
National RF makes a great portable unit that will work down to 1.8mhz I have one of their units with the AA A B and C loops that cover 3.8-5mhz I see they now have a BB loop listed for 1.8-3.5mhz Glad you brought this up I didn't know they had that new loop for 1.8-3.5mhz I'm will give them a call Monday morning. HFDF active directional antenna system http://www.nationalrf.com/type_hfdf_vector.htm they also have a unit for the shack called HFDX Vector-Beam http://www.nationalrf.com/type_hfdx_vector-beam.htm usual disclaimer, just a satisfied customer. -- GB & 73 K5OAI Sam Morgan On 5/17/2014 6:47 PM, Jim Miller wrote: I've pulled my P3 out of my setup to try and go searching for sources of 160/80m RFI. I did a whole house shutdown today and made sure that anything which had a battery was also shut down. That included the fire/burglar alarm system. For the purposes of these two bands my house is "clean." So now I need to do a walk around the area to see if I can locate the sources. I tried a little DC to daylight receiver with little success even with a 1ft diameter 2 turn loop for an antenna. The signals in question are too narrow band and the receiver is too insensitive so the signals are buried in noise. I'm now trying to use the P3 in hopes that its signal processing and averaging and ability to see a broader spectrum might be easier to use than listening to a single frequency. I tried the loop antenna directly into the P3 while powered on a battery and it seems like I could use a bit of gain to get over the input noise of the P3. Have others tried this and if so what sort of preamp, antenna or other setup was used? Right now focused on 160 and 80m. 73 jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 supplemental heat sink offering/counterfeiting
Good Evening Class. There is an offering on ebay for a "Canadian made" heat sink that supposedly fits on your KX3s. This offering features pictures that I posted to the Yahoo Groups forum. This is not an offering for Cooler KX but is a blatant counterfeit. You may email me directly to save bandwidth. Thank-you for your loyalty. Fred. -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-supplemental-heat-sink-offering-tp7586146p7589216.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 supplemental heat sink offering/counterfeiting
Sorry for the space this takes. I need to clear a few items up just so we are clear: I have never advertised or pretended that Cooler KX is anything other than a very well made replacement/supplemental heat sink for the KX3. The Cooler KX web page is very clear that the heat sink is not necessary for every KX3 installation. I make it quite clear under what circumstances it would be advantageous to have a Cooler KX installed. I have never implied that Elecraft have given me their blessing, nor have I ever advertised this as an Elecraft part- as the ebay ad implies. I have never suggested that I would not accept a return as the counterfeiter feels need to do- I do not need to say such a thing as your satisfaction is absolutely assured. My friends and customers can speak toward the product, my service, my integrity, my interest in their satisfaction. The photos are of my personal radio- posted to the sellers ad without my consent or permission. Here is the most significant clue that this is not authentic- all of those who asked and some even suggested that I do it- I said it then, and I say it again now- The Cooler KX will never be offered on ebay or any other discount online or bricks and mortar reseller by me. I only deal with real licensed amateurs, worldwide. The transaction transpires directly between two hams. I inspect and hand wrap each Cooler KX that leaves my kitchen counter. Y0o may check out what I say about the Cooler KX at: www.ve7fmn.ca With best regards, 72/73, Fred, VE7FMN -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-supplemental-heat-sink-offering-tp7586146p7589217.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 Message delivered to arch...@mail-archive.com
[Elecraft] It's the 21st Century Guys! PS2 is DEAD
I am continually astounded to see expensive electronics (particularly in the CW arena) being offered with PS2 connections for keyboards. The standard has been dead for about 100 years now, supplanted by USB technology. To ask for over $300.00 for a decoder/logger/keyer is all fine and good ,but when they come with outdated obsolete electronic connections, its simply a case of Lazy or Cheap. I was told by a very well known manufacturer, that if they had to put a USB port for the keyboard in, it would add too much to the price (*while this item already had a USB port for uploading new firmware). Yes, a USB port costs roughly $1.00 so in a $300.0+ dollar gadget you're telling me that an extra buck is going to be a deal breaker? Come on! Sorry, if it has a PS2 keyboard connection, I'm not buying it and neither should anyone else. -- View this message in context: http://elecraft.365791.n2.nabble.com/It-s-the-21st-Century-Guys-PS2-is-DEAD-tp7589218.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] It's the 21st Century Guys! PS2 is DEAD
Good that you're so firm about it. It matters not to me; I have excellent, small keyboards of both persuasions. One might as well argue that the P3 SVGA add-in should support HDMI instead of the relatively ancient SVGA. Phil w7ox On 5/17/14, 7:42 PM, HREFAB wrote: I am continually astounded to see expensive electronics (particularly in the CW arena) being offered with PS2 connections for keyboards. The standard has been dead for about 100 years now, supplanted by USB technology. To ask for over $300.00 for a decoder/logger/keyer is all fine and good ,but when they come with outdated obsolete electronic connections, its simply a case of Lazy or Cheap. I was told by a very well known manufacturer, that if they had to put a USB port for the keyboard in, it would add too much to the price (*while this item already had a USB port for uploading new firmware). Yes, a USB port costs roughly $1.00 so in a $300.0+ dollar gadget you're telling me that an extra buck is going to be a deal breaker? Come on! Sorry, if it has a PS2 keyboard connection, I'm not buying it and neither should anyone else. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] It's the 21st Century Guys! PS2 is DEAD
And we're still using RS-232 instead of USB. And UHF connectors, which have been obsolete since the 1940's (when the N connector was developed). It is all kind of embarrassing. wunder K6WRU On May 17, 2014, at 7:42 PM, HREFAB wrote: > I am continually astounded to see expensive electronics (particularly in the > CW arena) being offered with PS2 connections for keyboards. The standard has > been dead for about 100 years now, supplanted by USB technology. To ask for > over $300.00 for a decoder/logger/keyer is all fine and good ,but when they > come with outdated obsolete electronic connections, its simply a case of > Lazy or Cheap. I was told by a very well known manufacturer, that if they > had to put a USB port for the keyboard in, it would add too much to the > price (*while this item already had a USB port for uploading new firmware). > Yes, a USB port costs roughly $1.00 so in a $300.0+ dollar gadget you're > telling me that an extra buck is going to be a deal breaker? Come on! Sorry, > if it has a PS2 keyboard connection, I'm not buying it and neither should > anyone else. > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] It's the 21st Century Guys! PS2 is DEAD
Hard Wired Keyboards and Mice are also passe. Wireless is the only way to go, but that means you need more than just a couple of USB ports on these radios. 73, Dick, W1KSZ On 5/17/2014 8:19 PM, Phil Wheeler wrote: Good that you're so firm about it. It matters not to me; I have excellent, small keyboards of both persuasions. One might as well argue that the P3 SVGA add-in should support HDMI instead of the relatively ancient SVGA. Phil w7ox On 5/17/14, 7:42 PM, HREFAB wrote: I am continually astounded to see expensive electronics (particularly in the CW arena) being offered with PS2 connections for keyboards. The standard has been dead for about 100 years now, supplanted by USB technology. To ask for over $300.00 for a decoder/logger/keyer is all fine and good ,but when they come with outdated obsolete electronic connections, its simply a case of Lazy or Cheap. I was told by a very well known manufacturer, that if they had to put a USB port for the keyboard in, it would add too much to the price (*while this item already had a USB port for uploading new firmware). Yes, a USB port costs roughly $1.00 so in a $300.0+ dollar gadget you're telling me that an extra buck is going to be a deal breaker? Come on! Sorry, if it has a PS2 keyboard connection, I'm not buying it and neither should anyone else. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w1...@earthlink.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] It's the 21st Century Guys! PS2 is DEAD
Folks, Let's end this thread. This list is not the place to argue pro/con on issues like this, especially when they pertain to other manufacturer's products. 73, Eric List Moderator elecraft.com _..._ > On May 17, 2014, at 11:19 PM, Phil Wheeler wrote: > > Good that you're so firm about it. It matters not to me; I have excellent, > small keyboards of both persuasions. > > One might as well argue that the P3 SVGA add-in should support HDMI instead > of the relatively ancient SVGA. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] SSB net announcement
The weekly Elecraft SSB net meets tomorrow at 1800Z on 14.3035 MHz. I will be net control from western Oregon. See you then. 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 Message delivered to arch...@mail-archive.com
[Elecraft] It's the 21st Century Guys! Wireless is the future!
Well then something pertaining to Elecraft gear. I'm working on a BlueTooth/Android setup that does this same thing. Plug a BlueTooth serial adapter into a K3/KX3 and get a terminal for PSK/RTTY and some rig control from your Android device. Forget USB. Even THAT is ancient history. I'm sure others are working on it too. Even a full network control application is possible over WiFi. Just a matter of time. Doug -- K0DXV On 5/17/2014 9:28 PM, Eric Swartz WA6HHQ - Elecraft wrote: Folks, Let's end this thread. This list is not the place to argue pro/con on issues like this, especially when they pertain to other manufacturer's products. 73, Eric List Moderator elecraft.com _..._ On May 17, 2014, at 11:19 PM, Phil Wheeler wrote: Good that you're so firm about it. It matters not to me; I have excellent, small keyboards of both persuasions. One might as well argue that the P3 SVGA add-in should support HDMI instead of the relatively ancient SVGA. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k0...@aol.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] It's the 21st Century Guys! PS2 is DEAD
> One might as well argue that the P3 SVGA add-in should support HDMI instead > of the relatively ancient SVGA. Actually, I would prefer that if it supported HDMI. I don't own any SVGA displays -- haven't owned one in over 11 years. DVI and HDMI are the way to go these days. I have not bought the P3 SVGA option for this very reason. Actually, there is another possibly more important reason -- I have no use for a larger display screen on my ham shack desk. But, the lack of either DVI or HDMI output stops me anyway. 73, phil, K7PEH On May 17, 2014, at 8:19 PM, Phil Wheeler wrote: > Good that you're so firm about it. It matters not to me; I have excellent, > small keyboards of both persuasions. > > One might as well argue that the P3 SVGA add-in should support HDMI instead > of the relatively ancient SVGA. > > Phil w7ox > > On 5/17/14, 7:42 PM, HREFAB wrote: >> I am continually astounded to see expensive electronics (particularly in the >> CW arena) being offered with PS2 connections for keyboards. The standard has >> been dead for about 100 years now, supplanted by USB technology. To ask for >> over $300.00 for a decoder/logger/keyer is all fine and good ,but when they >> come with outdated obsolete electronic connections, its simply a case of >> Lazy or Cheap. I was told by a very well known manufacturer, that if they >> had to put a USB port for the keyboard in, it would add too much to the >> price (*while this item already had a USB port for uploading new firmware). >> Yes, a USB port costs roughly $1.00 so in a $300.0+ dollar gadget you're >> telling me that an extra buck is going to be a deal breaker? Come on! Sorry, >> if it has a PS2 keyboard connection, I'm not buying it and neither should >> anyone else. > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to phys...@mac.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 270 foot (ish) Doublet & K3 ATU
I said earlier: "Rick claims that when using a series connection of two different transmission lines, one coaxial, one window line, changing the length of one (coax) affects something or the other, while changing the length of the other portion (window line) has no effect whatsoever. This is clearly impossible. " I stand by those remarks. Your empirical evidence to the contrary is wrong. Rick also said: "Changing from 10' of coax from rig to the CMC (common mode choke, typically incorrectly called a current balun, used at the shack window) to ~35' has a significant change in tuning and band use ability. It allows me to operate above 300W on the bottom end of 80 meters when 10' makes it dicey (tuner matches, but can't handle/maintain the match above 300 watts)." Yet earlier in the thread he said: "The coax portion of the feed should be as SHORT as possible, in my case it is currently about 10' (2.8 meters). The losses are highest there and the extreme SWR makes it MUCH worse, keep it short; use the best stuff, not the cheap stuff. Changing the length of the coax portion has a HUGE impact on where (or if) the system tunes; the window line, none." So which is it, 10' or 35'? With that, I'm done. Wes N7WS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
