Early model (#321) displays ERR I01, indicating MISO line stuck low (asserted).
I can't find any reference to 'MISO line' in the manual. Any help would be much appreciated. 73, Ken ZL1AIH ________________________________ From: "elecraft-requ...@mailman.qth.net" <elecraft-requ...@mailman.qth.net> To: elecraft@mailman.qth.net Sent: Sunday, 23 February 2014 6:00 AM Subject: Elecraft Digest, Vol 118, Issue 43 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. Multiband end-fed dipole with KX1 (PGSchreier) 2. Re: Multiband end-fed dipole with KX1 (Jack Chomley) 3. Re: Multiband end-fed dipole with KX1 (PGSchreier) 4. Re: KPA100 recommended max power for digital modes? (Richard Ferch) 5. Re: Multiband end-fed dipole with KX1 (Ariel Jacala) 6. Re: Multiband end-fed dipole with KX1 (Jack Chomley) 7. Re: K3/0 Mini Soon? (Paul DeFelice) 8. Re: (no subject) (WILLIS COOKE) 9. Re: KPA100 recommended max power for digital modes? (WILLIS COOKE) 10. Re: K3 Order of Purchase (John Saxon) 11. Re: Multiband end-fed dipole with KX1 (Tom McCulloch) 12. Re: K3/KPA500/KAT500 revs 4.83/1.38/1.58 (ke9uw) 13. KAT-500 behavior under firmware 1.58 (DeYoung James) 14. Re: K3/KPA500/KAT500 revs 4.83/1.38/1.58 (Cady, Fred) 15. Re: Multiband end-fed dipole with KX1 (John Flynn) 16. Re: KAT-500 behavior under firmware 1.58 (Sam Morgan) 17. Re: Multiband end-fed dipole with KX1 (Brian Hunt) 18. Re: KPA100 recommended max power for digital modes? (Lynn W. Taylor, WB6UUT) 19. [W2] W2 on 630m band? (Jim Miller) 20. (no subject) (Edward R Cole) 21. Broadcast interference??? (Dale - K7DNH) 22. Re: Broadcast interference??? (Anthony Scandurra) 23. K3 external speaker output dead (a...@sbcglobal.net) 24. Re: KPA100 recommended max power for digital modes? (Gerald Manthey) ---------------------------------------------------------------------- Message: 1 Date: Sat, 22 Feb 2014 11:59:41 +0100 From: PGSchreier <pgschre...@swissonline.ch> To: elecraft@mailman.qth.net Subject: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <5308831d.1070...@swissonline.ch> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi gang, I would like to find a 40/30/20 meter end-fed dipole I can run with my KX1 and its tuner. (I'm not crazy about linked dipoles for a number of reasons.) Are you familiar with any end-fed design that will handle all three bands well? For instance, does anyone have any experience with the EndFed 40-6m Antenna from W1SFR? http://kx3helper.com/endfed-40-6m-antenna/ Thanks for any tips! Paul AA1MI / HB9DST ------------------------------ Message: 2 Date: Sat, 22 Feb 2014 21:05:13 +1000 From: Jack Chomley <vk4...@gmail.com> To: "pgschre...@swissonline.ch" <pgschre...@swissonline.ch> Cc: Elecraft List <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <73c75c29-cb43-48f5-8ca1-c0be1e55a...@gmail.com> Content-Type: text/plain; charset=us-ascii Paul, I have one of these up at present........the 5 band model. Works well but.......is expensive, they do have a 3 band QRP one, amongst others. http://hyendfedantenna.nl/joomla/purchase.html 73, Jack VK4JRC Club. www.cqara.org.au Member WIA SARL ARRL GQRP #14392 QRPARCI #15068 VKQRP. #833 > On 22 Feb 2014, at 8:59 pm, PGSchreier <pgschre...@swissonline.ch> wrote: > > Hi gang, > > I would like to find a 40/30/20 meter end-fed dipole I can run with my KX1 > and its tuner. (I'm not crazy about linked dipoles for a number of reasons.) > > Are you familiar with any end-fed design that will handle all three bands > well? > > For instance, does anyone have any experience with the EndFed 40-6m Antenna > from W1SFR? > http://kx3helper.com/endfed-40-6m-antenna/ > > Thanks for any tips! > Paul AA1MI / HB9DST > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 3 Date: Sat, 22 Feb 2014 12:11:39 +0100 From: PGSchreier <pgschre...@swissonline.ch> To: Jack Chomley <vk4...@gmail.com> Cc: Elecraft List <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <530885eb.3020...@swissonline.ch> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Jack, Unfortunately, none of these models supports 30 meters. 73 Paul > Paul, > > I have one of these up at present........the 5 band model. > Works well but.......is expensive, they do have a 3 band QRP one, amongst > others. > > http://hyendfedantenna.nl/joomla/purchase.html > > 73, > > Jack VK4JRC > > Club. www.cqara.org.au > Member WIA SARL ARRL > GQRP #14392 > QRPARCI #15068 > VKQRP. #833 > > ------------------------------ Message: 4 Date: Sat, 22 Feb 2014 06:32:49 -0500 From: Richard Ferch <ve3...@storm.ca> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] KPA100 recommended max power for digital modes? Message-ID: <53088ae1.40...@storm.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 2/21/2014 7:43 PM, WA7SPY wrote: > What is the recommended max power setting for the amp using PSK31 with a KX3? In the K3, the limiting factor in some digital modes (notably PSK) is not thermal capability of the radio or amplifier, it is linearity. The linearity limit depends on the particular digital mode in use, and it may also vary depending on the mode used in the radio. For PSK31 and its higher-speed brethren, using the radio's DATA A mode, power settings no higher than half the maximum power rating of the transmitter should be used. This will ensure that the maximum instantaneous peaks of the transmitted signal are not clipped (in PSK these peaks can be up to twice as high as the average transmitted power). I can't speak from personal experience for the KX3, but given the similarity in the way the transmitter power is controlled, I would expect it to be the same as the K3. Using the KXPA100, keeping the power setting below 50 watts should avoid non-linearity. 73, Rich VE3KI ------------------------------ Message: 5 Date: Sat, 22 Feb 2014 06:34:45 -0500 From: Ariel Jacala <n...@hotmail.com> To: "pgschre...@swissonline.ch" <pgschre...@swissonline.ch>, elecraft reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <blu180-w78497abe726849869f77aa8b...@phx.gbl> Content-Type: text/plain; charset="iso-8859-1" Paul, I run an EARCHI Matchbox with 44 feet of wire. It is resonant on 20m (no tuner) and the SWR is below 3.5:1 for the frequencies between 7 MHz and 25 MHz so you can tune 40-12m. I have no problem tuning it with my KX3 ATU. I am not sure the KX1 ATU will handle it but I am thinking it does. The EARCHI matchbox is good up to 100 watts - so it is both versatile and robust. I have gone to this antenna instead of the PAR 40-20-10. It also tunes 30m and has been my go to antenna for 30m for a long time at my QTH. It cost $35 to build with a kit from EARCHI and takes about 10 minutes. Ariel NY4G > Date: Sat, 22 Feb 2014 11:59:41 +0100 > From: pgschre...@swissonline.ch > To: elecr...@mailman.qth..net > Subject: [Elecraft] Multiband end-fed dipole with KX1 > > Hi gang, > > I would like to find a 40/30/20 meter end-fed dipole I can run with my > KX1 and its tuner. (I'm not crazy about linked dipoles for a number of > reasons.) > > Are you familiar with any end-fed design that will handle all three > bands well? > > For instance, does anyone have any experience with the EndFed 40-6m > Antenna from W1SFR? > http://kx3helper.com/endfed-40-6m-antenna/ > > Thanks for any tips! > Paul AA1MI / HB9DST > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 6 Date: Sat, 22 Feb 2014 21:36:44 +1000 From: Jack Chomley <vk4...@gmail.com> To: "pgschre...@swissonline.ch" <pgschre...@swissonline.ch> Cc: Elecraft List <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <2a0cebc8-08aa-4c23-8560-acd4bcfd8...@gmail.com> Content-Type: text/plain; charset=us-ascii Paul, I also use these for portable work, you may need to carry a couple of antennas, or make up some half wave length wires for bands other than 10/20/40. On their QRP antenna you remove the tri-band wire and put on the wire of your choice, to work other bands. Won't go to 80 metres though....... http://www.lnrprecision.com/endfedz-specs/ 73, Jack VK4JRC Club. www.cqara.org.au Member WIA SARL ARRL GQRP #14392 QRPARCI #15068 VKQRP. #833 > On 22 Feb 2014, at 9:11 pm, PGSchreier <pgschre...@swissonline.ch> wrote: > > Hi Jack, > > Unfortunately, none of these models supports 30 meters. > > 73 > Paul > >> Paul, >> >> I have one of these up at present........the 5 band model. >> Works well but.......is expensive, they do have a 3 band QRP one, amongst >> others. >> >> http://hyendfedantenna.nl/joomla/purchase.html >> >> 73, >> >> Jack VK4JRC >> >> Club. www.cqara.org.au >> Member WIA SARL ARRL >> GQRP #14392 >> QRPARCI #15068 >> VKQRP. #833 > ------------------------------ Message: 7 Date: Sat, 22 Feb 2014 08:18:57 -0500 From: "Paul DeFelice" <k...@mchsi.com> To: <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K3/0 Mini Soon? Message-ID: <000001cf2fd0$a518c240$ef4a46c0$@mchsi.com> Content-Type: text/plain; charset="us-ascii" Must be close because it was on display at the Orlando Hamcation a couple of weeks ago. 73, Paul K9NU ------------------------------ Message: 8 Date: Sat, 22 Feb 2014 05:45:41 -0800 (PST) From: WILLIS COOKE <wrco...@yahoo.com> To: John Saxon <johnbsa...@yahoo.com>, "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] (no subject) Message-ID: <1393076741.76822.yahoomail...@web181005.mail.ne1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 I would recommend the Amp first for two reasons. ?One, you need the power. ?10 watts is enough to make a lot of contacts, but it will leave you disappointed a lot of times when you will want to make the contact. A lot has been said for QRP and if you want a challenge it will certainly give you one, but you will find that people will avoid rag chews because they can' get solid copy and you will miss many contacts because the other party can't copy you. ?The second reason is that the amplifier is deeper into the K3 than the tuner and the assembly is easier with the amp first. ?The tuner is located at the corner of a K3 and is easy to add later. ? But both are great additions, particularly if you are not using an external high power amp and if you can afford the expense I recommend both of them as soon as possible. ? Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart ________________________________ From: John Saxon <johnbsa...@yahoo.com> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Sent: Friday, February 21, 2014 2:45 PM Subject: [Elecraft] (no subject) I have a K3/10 with no add-ons, and now am ready to get a KPA3 100W amp & KAT3 tuner, to install myself. ?I would rather not purchase them at the same time. ?Is there a more favorable order to get them? ?Amp first or tuner first? ?I suspect there may be some construction issues that would favor one over the other to be acquired first. Thanks & 73, John K5ENQ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 9 Date: Sat, 22 Feb 2014 06:03:34 -0800 (PST) From: WILLIS COOKE <wrco...@yahoo.com> To: WA7SPY <wa7...@comcast.net>, "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] KPA100 recommended max power for digital modes? Message-ID: <1393077814.78494.yahoomail...@web181006.mail.ne1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 I don't think that Elecraft recommends any particular power. ?The amplifier will put out full power with acceptable distortion, but the lower quality receivers of others will easily overload and if you use more than a few watts it will prevent the use of the pass band by your neighbors and you will not be popular with them. ?They will tell you as they all want to be in the same SSB pass band so that they can see everybody at one time. ?Elecraft can't do anything about the quality of their competitors receivers. ? Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart ________________________________ From: WA7SPY <wa7...@comcast.net> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Sent: Friday, February 21, 2014 9:43 PM Subject: [Elecraft] KPA100 recommended max power for digital modes? I just ordered a KPA100 with the auto tuner for my KX3. In anticipation of the arrival of the amp? I was looking at the operating manual online and did not see any recommended power setting for operating the amp with digital modes. I plan to use the amp for PSK31. What is the recommended max power setting for the amp using PSK31 with a KX3? Thanks, Glenn Maclean WA7SPY ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 10 Date: Sat, 22 Feb 2014 06:05:38 -0800 (PST) From: John Saxon <johnbsa...@yahoo.com> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K3 Order of Purchase Message-ID: <1393077938.50047.yahoomail...@web141704.mail.bf1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Thanks to all for the great advice and opinions. ?FWIW...I will get the amp first, then the autotuner. ?All I have to do now is to sell my Collins R-390 to get the money :-)? (For you BA lovers, I have a 390A I am keeping) 73, John On Friday, February 21, 2014 8:25 PM, Fred Jensen <k6...@foothill.net> wrote: Well, if you need the KAT3 to operate 100W with your antenna(s), then I'd think you want it first.? If your antenna(s) present a suitable load, you really don't need the KAT at all, so I'd go with the KPA.? You might want the tuner for operation away from your station, add it second. The KPA comes with some hardware [shield plate and maybe a stiffener bracket], it's been so long I really don't remember.? Someone here on the list will, I'm sure. On 2/21/2014 12:45 PM, John Saxon wrote: > I have a K3/10 with no add-ons, and now am ready to get a KPA3 100W > amp & KAT3 tuner, to install myself.? I would rather not purchase > them at the same time.? Is there a more favorable order to get them? > Amp first or tuner first?? I suspect there may be some construction > issues that would favor one over the other to be acquired first. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 11 Date: Sat, 22 Feb 2014 09:09:28 -0500 From: Tom McCulloch <th...@att.net> To: pgschre...@swissonline.ch, elecraft@mailman.qth.net Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <5308af98.20...@att.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Paul, Here's a radio club in Hawaii that was selling a kit for end feds : http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf You also can roll your own easy enough, but the transformers carry a lot a voltage so beware. Try these site: http://www.aa5tb.com/efha.html http://www.w8ji.com/end-fed_1_2_wave_matching_system_end%20feed.htm http://betterqrp.com/page5.php http://www.parelectronics.com/end-fedz.php GL Tom WB2QDG K2 1103 Oh Wow. Oh Wow. Oh Wow. --- Steve Jobs October 5, 2011 On 2/22/2014 5:59 AM, PGSchreier wrote: > Hi gang, > > I would like to find a 40/30/20 meter end-fed dipole I can run with my > KX1 and its tuner. (I'm not crazy about linked dipoles for a number of > reasons.) > > Are you familiar with any end-fed design that will handle all three > bands well? > > For instance, does anyone have any experience with the EndFed 40-6m > Antenna from W1SFR? > http://kx3helper.com/endfed-40-6m-antenna/ > > Thanks for any tips! > Paul AA1MI / HB9DST > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 12 Date: Sat, 22 Feb 2014 06:35:46 -0800 (PST) From: ke9uw <c-haw...@illinois.edu> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3/KPA500/KAT500 revs 4.83/1.38/1.58 Message-ID: <1393079746762-7584553.p...@n2.nabble.com> Content-Type: text/plain; charset=us-ascii My KAT goes on with the bench power supply. Then I turn on the K3 and the the KPA. ----- Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-KAT500-revs-4-83-1-38-1-58-tp7584490p7584553.html Sent from the Elecraft mailing list archive at Nabble.com. ------------------------------ Message: 13 Date: Sat, 22 Feb 2014 06:10:13 -0800 (PST) From: DeYoung James <deyoung_ja...@yahoo.com> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: [Elecraft] KAT-500 behavior under firmware 1.58 Message-ID: <1393078213.55660.yahoomail...@web121605.mail.ne1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Greetings, Here is a little "feedback" on the new KAT-500 firmware.? I installed version 1.58 last night and was using my 160m capacitance hat vertical antenna and observed what I think is strange behavior.? First, I admit my 160m cap. hat vertical is not an optimal antenna.? Previous versions of the firmware however, produced acceptable matches.? Version 1.54 was a little better by introducing the finer step search.? The version 1.58 firmware however produces worse results in my case. The tuning passes, the clickity-clack search, is clearly different on 160m.? The KAT-500 now finds no good match in auto mode.? I place the KAT-500 in "manual" mode and using the utility software set previously used capacitance and inductance values.? Now the KAT-500 goes sometimes into bypass mode (I have no KPA-500), drops setting values with an audible click, and some times when I checked the utility it has gone far away in capacitance and inductance values without a "clickty-clack" tuning cycle.? My K3 used to be able to produce nearly full power with its super ALC method of power control.? According to my Palstar PM2000A power meter, not so much anymore, as it behaves now like traditional power fold back on 160m.? It appears something is interacting. I have no evidence of RF in the shack. Jim, N8OQ ------------------------------ Message: 14 Date: Sat, 22 Feb 2014 08:03:12 -0700 From: "Cady, Fred" <fc...@ece.montana.edu> To: 'Arie Kleingeld PA3A' <p...@xs4all..nl>, "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K3/KPA500/KAT500 revs 4.83/1.38/1.58 Message-ID: <31b0bce89606784fb09ef0c6cf94794f03f7ee7...@coeexch1.coe.montana.edu> Content-Type: text/plain; charset="us-ascii" Here is how to make it fail: Disconnect the power completely from the KAT500 (maybe the micro in it stays on when it is "powered" off). Turn off the K3 with its power switch with the KPA turned on. Turn on the K3 with the KPA500 on. I get either a blank K3 LCD display or it is hung up. To recover: Turn the power supply to the k3 off. Plug in the power cable to the KAT500 (I use the same supply as the K3 with a Rig runner that powers everything up at once when the K3 turns on). Turn the K3 and KAT500 power supply on. Hit the Power On button on the K3. YMMV. 73 all, Fred KE7X "The Elecraft K3: Design, Configuration and Operation 2nd ed" "The Elecraft KX3 - Going for the summit" www.ke7x.com or www.lulu.com (Coming soon: "The Elecraft KPA500 and KAT500 - the K-Line Dream Station") -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Arie Kleingeld PA3A Sent: Saturday, February 22, 2014 3:51 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3/KPA500/KAT500 revs 4.83/1.38/1.58 Yes, The KAT500 needed to be powered first. I also used to do that. That was in the 'older firmware times'. With the current FW, up till now I never bumped into any issue no matter which device was turned on first. Arie PA3A Jack Brindle schreef op 21-2-2014 20:34: > The KAT500 needs to be powered on whenever the K3 is on in order to avoid > loading the Auxbus. It can be powered up at the same time, but must be on > before the K3 completes its initialization. > > The KPA500 has no restriction, and can be powered on any time before or after > the K3 is turned on. > > Jack Brindle, W6FB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 15 Date: Sat, 22 Feb 2014 10:16:41 -0500 From: John Flynn <gio.fl...@gmail.com> To: pgschre...@swissonline.ch Cc: "Elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <CALK2Zbw=jrzafdbq1zpvopqjao4wdsssd2f4tp5oo8yhttk...@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Good Day Paul, My first rig was a KX1 and I ran an end-fed wire (34' as I recall) with three counterpoises. It worked on 20, 30, and 40 quite well. It wouldn't load on 80, but I made QSOs with it anyway. A year or so later I bought a KX3 and ran the same antenna with good results. Then about 6 months ago, I bought the EARCHI EFHW. I'm using the suggested setup--30' wire to the matchbox with 25' of coax.The KX3 loves it and it loads 6 though 80 FB--160 not so well.. The only drawback is the counterpoise. Just for grins I took out the trusty KX1 and tried it on the EARCHI, The AT didn't like it. SWL was 2.0 where with it was 1.0--1.3 consistently with the simple wire-counterpoise setup. So, maybe I need to lengthen the wire as another poster noted. Just FYI see http://www.sotabeams.co.uk/efhw/ for a discussion of EFHW. 72 John K4ARQ On Sat, Feb 22, 2014 at 5:59 AM, PGSchreier <pgschre...@swissonline.ch>wrote: > Hi gang, > > I would like to find a 40/30/20 meter end-fed dipole I can run with my KX1 > and its tuner. (I'm not crazy about linked dipoles for a number of reasons.) > > Are you familiar with any end-fed design that will handle all three bands > well? > > For instance, does anyone have any experience with the EndFed 40-6m > Antenna from W1SFR? > http://kx3helper.com/endfed-40-6m-antenna/ > > Thanks for any tips! > Paul AA1MI / HB9DST > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- John Flynn Tallahassee, Florida USA ------------------------------ Message: 16 Date: Sat, 22 Feb 2014 09:24:57 -0600 From: Sam Morgan <k5oai....@gmail.com> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] KAT-500 behavior under firmware 1.58 Message-ID: <5308c149.9050...@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed I have had just the opposite results with v 1.58 My amp is an AL-811, I run it at about 300-400w on 160m My 160m antenna is a 7' tall HiQ screwdriver antenna (also with a top hat) @ 20' with 16 radials each 13' long on my apartment roof. With no tuner my SWR on 160m ranges from 2.0:1 to 4.5:1 With v1.54 I was unable to run the KAT500 in Auto it would tune just fine and then while talking it would randomly fold back and start a search for an elusive low swr point With v1.58 I am able to find a stable resonant point yes at first there was a major 'clackity-clack' search, which resulted in a point 'close' to resonant. But if I immediately taped the [TUNE] button again, there is a much quieter, shorter search, that resulted in a stable tuning point in AUTO. I can then enjoy my 2 hr morning ragchew with out any retuning. The next morning when I tune up there may be a brief quiet retune, but that is caused by the different overnight moisture changes on the roof. Once that initial retune takes place it's once again stable. ymmv On 2/22/2014 8:10 AM, DeYoung James wrote: > Greetings, Here is a little "feedback" on the new KAT-500 firmware. > I installed version 1.58 last night and was using my 160m capacitance > hat vertical antenna and observed what I think is strange behavior. > First, I admit my 160m cap. hat vertical is not an optimal antenna. > Previous versions of the firmware however, produced acceptable > matches. Version 1.54 was a little better by introducing the finer > step search. The version 1.58 firmware however produces worse > results in my case. > > The tuning passes, the clickity-clack search, is clearly different on > 160m. The KAT-500 now finds no good match in auto mode. I place the > KAT-500 in "manual" mode and using the utility software set > previously used capacitance and inductance values. Now the KAT-500 > goes sometimes into bypass mode (I have no KPA-500), drops setting > values with an audible click, and some times when I checked the > utility it has gone far away in capacitance and inductance values > without a "clickty-clack" tuning cycle. My K3 used to be able to > produce nearly full power with its super ALC method of power control. > According to my Palstar PM2000A power meter, not so much anymore, as > it behaves now like traditional power fold back on 160m. It appears > something is interacting. > > I have no evidence of RF in the shack. Jim, N8OQ -- GB & 73 K5OAI Sam Morgan ------------------------------ Message: 17 Date: Sat, 22 Feb 2014 07:34:55 -0800 From: Brian Hunt <huntin...@coastside.net> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Multiband end-fed dipole with KX1 Message-ID: <155d9579-2130-43f7-9ec0-864f0f0a7...@coastside.net> Content-Type: text/plain; charset=us-ascii I have a home brew 40/30/20 end fed half wave vertical I've used for several years with my K1. 33 ft long and supported with a MFJ fiberglass pole, it has a loading coil 6 ft from each end. 20 m with the coil shorted, 30 m with a tap selected and 40 m with the entire coil in the circuit. You have to haul the antenna down to change bands but that's easy with the MFJ pole. The tuner is a tuned tank with a 6 turn link tapped on every turn. The coil and link are wound on a 1 in. toroid. It will tune the antenna to 1:1 SWR on all 3 bands. It will handle about 15 watts before it starts to arc. :-) I can put together the details if interested. 72, Brian, K0DTJ > On Feb 22, 2014, at 2:59, PGSchreier <pgschre...@swissonline.ch> wrote: > > Hi gang, > > I would like to find a 40/30/20 meter end-fed dipole I can run with my KX1 > and its tuner. (I'm not crazy about linked dipoles for a number of reasons.) > > Are you familiar with any end-fed design that will handle all three bands > well? > > For instance, does anyone have any experience with the EndFed 40-6m Antenna > from W1SFR? > http://kx3helper.com/endfed-40-6m-antenna/ > > Thanks for any tips! > Paul AA1MI / HB9DST > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 18 Date: Sat, 22 Feb 2014 07:39:35 -0800 From: "Lynn W. Taylor, WB6UUT" <k...@coldrockshotbrooms.com> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA100 recommended max power for digital modes? Message-ID: <5308c4b7.4080...@coldrockshotbrooms.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed For PSK-31, you really want to run the minimal amount of power necessary. Remember that the entire PSK-31 subband fits in your receiver filters -- you don't tune the VFO at all. If you transmit a strong signal, and propagation is good, I'll be able to work you, but when my receiver AGC cuts in all the rest of the PSK-31 stations on the band will go away. If I happened to be working one of those other stations, my QSO is over. As a rule of thumb, you don't want to exceed half the output power, unless the amp is rated for 100% key down. Monitor the temperature. 50 watts is a lot of power on PSK-31. 73 -- Lynn On 2/21/2014 7:43 PM, WA7SPY wrote: > I just ordered a KPA100 with the auto tuner for my KX3. In anticipation of > the arrival of the amp I was looking at the operating manual online and did > not see any recommended power setting for operating the amp with digital > modes. I plan to use the amp for PSK31. What is the recommended max power > setting for the amp using PSK31 with a KX3? > > Thanks, > Glenn Maclean WA7SPY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 19 Date: Sat, 22 Feb 2014 10:58:06 -0500 From: Jim Miller <j...@jtmiller.com> To: Elecraft Reflector <elecraft@mailman.qth.net> Subject: [Elecraft] [W2] W2 on 630m band? Message-ID: <cacyen9wkcgjwbp_uobrbbxcxviwudqtu_krbuikq5bzyuqo...@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 The specs for the W2 only go down as far as the bottom of the 160m band. >From the schematic it would appear that the only thing on the Low Power Sensor that might limit it would be the input sensing transformers. Will the unit work down on 630m with out loss of accuracy? Thanks jim ab3cv ------------------------------ Message: 20 Date: Sat, 22 Feb 2014 06:58:23 -0900 From: Edward R Cole <kl...@acsalaska.net> To: Elecraft@mailman.qth.net Subject: [Elecraft] (no subject) Message-ID: <201402221558.s1mfwnvs036...@cordova.acsalaska.net> Content-Type: text/plain; charset="us-ascii"; format=flowed Good points: JT-65 is 100% duty cycle unlike CW or SSB that are much lower duty cycle. The issue is dissipation power in your finals. I run JT-65 with 1300w and theoretically the 8877 can dissipate 1500w so I am fine (the caveat is the 8877 needs very good air cooling). With no air the 8877 quickly fails with only filament voltage applied (5v-11a). QRP on 2m eme is generally considered anything under 600w or less than two yagis. That is a very weak signal when transmitted half-million miles roundtrip to the Moon. I have made JT-65 eme contacts using four 10-element yagis and only 150w...definitely QRP. Likewise, I can run 20m psk at 12w out of the native K3/10 into a triband yagi with good results. But the dissipation area in the KX3 is so small I would lower this to 3w. The Elecraft radios will quickly tell you if you are exceeding their abilities! On the other hand I over-built my 300w PA by adding a fan to it can be run "to the wall" at max power. 73, Ed - KL7UW From: Jim Brown <j...@audiosystemsgroup.com> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA100 recommended max power for digital modes? Message-ID: <53084c05.5060...@audiosystemsgroup.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 2/21/2014 7:43 PM, WA7SPY wrote: > I was looking at the operating manual online and did not see any recommended power setting for operating the amp with digital modes. Elecraft output stages are very well protected. In general, I feel comfortable running them "balls to the wall" with keydown modes, with all the lights lit. With well matched antennas, I run keydown modes at full power. If the output stage gets warm, the fan will run faster, and if that isn't enough, the rig will back off the drive. Remember that the WSJT modes are "weak signal" modes, NOT low power modes. There is a big difference. We may get lots of distance per watt and be happy with QRP for easy paths, but for the most difficult paths (EME, transcontinental 160M), great digital ops pile on the watts and use their best antennas. I do a lot of QRP, but I also know when to turn on the big amp. :) 73, Jim K9YC 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com ------------------------------ Message: 21 Date: Sat, 22 Feb 2014 08:10:48 -0800 (PST) From: Dale - K7DNH <dh2...@sbcglobal.net> To: elecraft@mailman.qth.net Subject: [Elecraft] Broadcast interference??? Message-ID: <1393085448173-7584562.p...@n2.nabble.com> Content-Type: text/plain; charset=us-ascii I believe I have finally experienced broadcast interference... at least I hope that is what it is... On 4th floor of hotel with a balcony and strung out a LnR Precision 40/20 End Fed antenna across parking lot to large pine tree with strain relief polyester antenna rope so coax connection at end of antenna (has built-in balun) was 10 feet from building, and opposite end had over 50 feet in the clear with same type rope - with antenna having slight, normal sag of maybe 1 foot. I have used this set-up several times at various hotels... last time just the day before but in different city. (Sunny San Diego first of week, Drizzly Portland, OR now... Wish some of the rain would head further south into Reno for drought relief!! I have MINIMUM of S10 to sometimes S30 noise level - and any time I do get some type of voice it is all pretty garbled. Checked mode, LSB/USB - all connections several times, same on different bands... and when I checked WWV on 5 I could hear what I think was local AM station a bit "clearer"! Just trying things I reloaded a saved config file, even tried EEINT and reloaded again - no change whatsoever. Well, sun came out late this afternoon.. and one can see more than 100 yards...and across the freeway stands 3 large towers!!! Maybe this was overloading far beyond what the KX3 ATU can handle?.... as I read somewhere it has broadcast filters built into the ATU. Any recommendations on a external filter I can buy, so during my evenings in hotels when I travel I don't experience this again?? PIA to use my slingshot/fishing line to string an antenna in the drizzling rain for nuthin'! Dale K7DNH -- View this message in context: http://elecraft.365791.n2.nabble.com/Broadcast-interference-tp7584562.html Sent from the Elecraft mailing list archive at Nabble.com. ------------------------------ Message: 22 Date: Sat, 22 Feb 2014 11:18:50 -0500 From: Anthony Scandurra <anthony..scandu...@gmail.com> To: Dale - K7DNH <dh2...@sbcglobal.net> Cc: Elecraft Reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Broadcast interference??? Message-ID: <cak6fa8mjzybbtfn0fen1yy+9ohcijqxw+tsmt5qrhdo3nop...@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Array Solutions sells a design by W3NQN. http://www..arraysolutions.com/Products/BCB%20RF%20Filters.htm Good luck! 73, Tony K4QE On Sat, Feb 22, 2014 at 11:10 AM, Dale - K7DNH <dh2...@sbcglobal.net> wrote: > I believe I have finally experienced broadcast interference... at least I > hope that is what it is... > > On 4th floor of hotel with a balcony and strung out a LnR Precision 40/20 > End Fed antenna across parking lot to large pine tree with strain relief > polyester antenna rope so coax connection at end of antenna (has built-in > balun) was 10 feet from building, and opposite end had over 50 feet in the > clear with same type rope - with antenna having slight, normal sag of maybe > 1 foot. I have used this set-up several times at various hotels.... last > time > just the day before but in different city. (Sunny San Diego first of week, > Drizzly Portland, OR now... Wish some of the rain would head further south > into Reno for drought relief!! > > I have MINIMUM of S10 to sometimes S30 noise level - and any time I do get > some type of voice it is all pretty garbled. Checked mode, LSB/USB - all > connections several times, same on different bands... and when I checked > WWV on 5 I could hear what I think was local AM station a bit "clearer"! > Just trying things I reloaded a saved config file, even tried EEINT and > reloaded again - no change whatsoever. > > Well, sun came out late this afternoon.. and one can see more than 100 > yards...and across the freeway stands 3 large towers!!! Maybe this was > overloading far beyond what the KX3 ATU can handle?.... as I read > somewhere > it has broadcast filters built into the ATU. > > Any recommendations on a external filter I can buy, so during my evenings > in > hotels when I travel I don't experience this again?? PIA to use my > slingshot/fishing line to string an antenna in the drizzling rain for > nuthin'! > > Dale > K7DNH > > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Broadcast-interference-tp7584562.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: 23 Date: Sat, 22 Feb 2014 08:30:20 -0800 (PST) From: a...@sbcglobal.net To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: [Elecraft] K3 external speaker output dead Message-ID: <1393086620.78449.yahoomail...@web185402.mail.gq1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 I recently purchased 2 replacement K3 speakers to make tuned port enclosures for CW audio.? Plugging one of the speakers to the rear panel jack (via 3.5mm stereo plug) to test resulted in no output.? Had the config SPKRS = 1?? Rear jack worked fine last time I tried an external speaker.?? Full audio output is fine on the internal speaker.?? Anyone?reading had this issue?? Any ideas? ? 73, Mike AC5P? ------------------------------ Message: 24 Date: Sat, 22 Feb 2014 10:46:20 -0600 From: Gerald Manthey <kc6...@gmail.com> To: "Lynn W. Taylor, WB6UUT" <k...@coldrockshotbrooms.com> Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA100 recommended max power for digital modes? Message-ID: <CANpysv=13Pckh0a4bikg=cjtuebwtztufenouoc59g_2bki...@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 I run 25 watts on my K3. I adjusted it by watching my peaks on a scope. At 25 watts and my alc set I have a clean signal. There are those that splat more power and we all see them in the waterfall. 25 watts will work the world on PSK. Just my observations and my .02 cents. 73 Gerald On Feb 22, 2014 9:40 AM, "Lynn W. Taylor, WB6UUT" < k...@coldrockshotbrooms.com> wrote: > For PSK-31, you really want to run the minimal amount of power necessary. > > Remember that the entire PSK-31 subband fits in your receiver filters -- > you don't tune the VFO at all. > > If you transmit a strong signal, and propagation is good, I'll be able to > work you, but when my receiver AGC cuts in all the rest of the PSK-31 > stations on the band will go away. > > If I happened to be working one of those other stations, my QSO is over. > > As a rule of thumb, you don't want to exceed half the output power, unless > the amp is rated for 100% key down. Monitor the temperature. > > 50 watts is a lot of power on PSK-31. > > 73 -- Lynn > > On 2/21/2014 7:43 PM, WA7SPY wrote: > >> I just ordered a KPA100 with the auto tuner for my KX3. In anticipation >> of the arrival of the amp I was looking at the operating manual online and >> did not see any recommended power setting for operating the amp with >> digital modes. I plan to use the amp for PSK31. What is the recommended max >> power setting for the amp using PSK31 with a KX3? >> >> Thanks, >> Glenn Maclean WA7SPY >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ------------------------------ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must be a subscriber to post. Elecraft web page: http://www.elecraft.com End of Elecraft Digest, Vol 118, Issue 43 ***************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
