Re: [Elecraft] Installed K3EXREF
On 3/19/2011 9:34 PM, Paul Christensen wrote: Major snip of excellent information At least some AM stations operating with digital subcarriers are GPS locked and can be extremely accurate. WMAL 630 KHz here in the Washington DC area is one example. It's as close to 630 KHz as I can measure (about 10 milli-Hz) and E-mail correspondence with the station's chief engineer confirmed the transmitter frequency is GPS locked. I've measured other local AM stations as far as 16 Hz off - within the FCC's tolerance, but not of much use as a frequency standard. Commercial AM broadcast station frequencies are typically only accurate to about +/- 20 Hz although most are better than that. Jack K8ZOA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Don w3fpr
I certainly second that. Don has been more than just a resource for me, but a huge problem solver. Not only is he tolerant of new owner's questions, but he resolves them in a most professional manner. Thank you Don, Bob - K9OSC -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-w3fpr-tp6188217p6189226.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
Many thanks to Ed KL7UW, Ron AC7AC and Paul W9CA for your helpful comments on the K3EXREF. I look forward to this product being available in due course and I have my 10 MHz standard poised in readiness. 73 de David G4DMP -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/10 in Attic Looking for Six Meters
Frank: I have done quite a bit of operating on 6m SSB with 10 watts and a dipole (and in the past with 2 watts and a dipole). Unfortunately I haven't had a K3 to do it with, but one the current versions is a K2 and homebrew transverter. My dipole heights have ranged from 12 feet to 30 feet, but that's mostly been at hilltop portable locations during contests. That experience makes me think that you will likely be able to work people with your current setup (assuming you can match the antenna), but that it will be something of a challenge, as it has been for me. You probably won't find much until the sporadic E season starts around mid May. From hilltop sites, using 10W and a rotatable dipole at 12 ft, I can sometimes work mountin-top big gun stations out to about 400 km distance with no enhanced propagation at all. Really amazing 6m QSOs are rare with this sort of setupbut they do happen. I've worked Europe (at sunspot cycle peak) and the Caribbean (on summer sporadic E) with 2W/dipole@30', called CQ with that same setup (but with the dipole at 12 ft over flat land) on an apparently dead band and raised a W5, and so on. I've also operated with 100 W and a 3 element beam on rare occasions it's MUCH easier that way ! 73, Steve VE3SMA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Don w3fpr
Don is the best. He really cares about helping others! On Sunday, March 20, 2011, K9OSC k9os...@yahoo.com wrote: I certainly second that. Don has been more than just a resource for me, but a huge problem solver. Not only is he tolerant of new owner's questions, but he resolves them in a most professional manner. Thank you Don, Bob - K9OSC -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-w3fpr-tp6188217p6189226.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 -- Frank KD8FIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft List Test Bounce
Elecraft List Test Bounce __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
So if I understand correctly this soon to be option is basically constantly adjusting the frequency of the K3 to be correct. Or in other words a constant adjustment to the reference oscillator. This could be a real nice to have, as I have been re-adjusting (zero beating to WWV) to try and tune my K3 to be spot on. The reason I have been doing this is that I was thinking I was off frequency but I think that many radio's out there are off. Thanks, now I need even more money. Don KD8NNU On Sat, Mar 19, 2011 at 7:13 PM, Ron D'Eau Claire wrote: Installing the K3EXREF involves installing a connector/cable assembly in the REF. hole in the K3's rear panel and running the cable under the RF board to the front panel shield, then up behind the front panel shield. The other end plugs into the TMP connector on the KREF3 reference oscillator board that sticks through the hole in the shield. A small pony board plugs into the connector on the component side of the KREF3 board, held in place by a screw that passes through it and the KREF3 board and into the PEM nut in the shield. The biggest part of the project is taking the left side off of the K3 to install the cable. If you have the K144XV installed, it needs to be removed. If you have the KRX3 subreceiver, it can be left in place. You do *NOT* need to remove the KRX3 module with all its cables. Ed's time of 1.5 hrs sounds about right for someone working carefully and methodically, doing the job for the first time. There's no soldering, of course, but still a fair bit of mechanical disassembly/reassembly. After doing it several times, I can probably do it in 30 minutes or a bit less without rushing. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Pratt Sent: Saturday, March 19, 2011 3:49 PM To: Edward R. Cole Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Installed K3EXREF That seems quite a long time to install it, Ted. What's involved? I have looked for the manual on-line but it does seem to up there yet. Any more details would be appreciated; I'd like to order one. 73 de David G4DMP In a recent message, Edward R. Cole kl...@acsalaska.net writes It took me about 1-1/2 hours to install the new EXREF for referencing the TCXO to external 10-MHz. I have not installed the new firmware or tested it yet...more news, later. -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
The K3 is indeed sufficiently accurate for amateur use, but if you already have a 10 MHz Rubidium, Caesium or GPS standard, Rick, then why not couple it up your K3? It's just another refinement and helps to put yours existing frequency standard to good use. 73 de David G4DMP In a recent message, Rick Stealey rstea...@hotmail.com writes Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
the need? Just because its there and something the import rigs dont have? Mike AC5P From: Rick Stealey rstea...@hotmail.com To: elecraft@mailman.qth.net Sent: Sun, March 20, 2011 9:45:59 AM Subject: Re: [Elecraft] Installed K3EXREF Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
What's a GPSDO setup go for including an antenna? 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
Re: [Elecraft] K3/10 in Attic Looking for Six Meters
It is amazing what you can do with just a dipole on 6-meters when the band opens - though not sure about mounting it inside your attic. I've been using just a 6-meter dipole mounted on my chimney here in the Dallas area for probably four years now. No problem working all over the country when the band opens, though I have been using my K3 at 100 watts (IC-706MKIIG prior to the K3). Just upgraded to a 4-element 6-meter beam - and I'm field testing a KPA500! Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
The question of 1 Hz accuracy can get multiplied a lot in VHF work. If one is talking about HF, it is hard to see the need. Personally, I *LIKE* the idea of being spot on. It's not a technological justification, but one I might spend a moderate sum to nail. If I was doing VHF or UHF work, I would want it to get the combination of equipment very close. If you are listening to HF SSB and expecting signals to be spot on kilohertz boundaries, there are still many signals out there on equipment over a quarter century old. I helped an older gentleman with a 160 meter antenna problem, and he included a station photo with an email. I was surprised to see that he is STILL using a World War II ARC-5 transmitter as his main transmitter on 160. He uses an old National NC183 as his receiver at MF. AND, he has some recent contest first place in section finishes on 160 to prove that it works. This is perhaps the extreme, but many hams have and use very serviceable older analog rigs without the frequency accuracy, and you will not find them at kilohertz boundaries with 1 Hz accuracy. I would only advise to have a REASON for the accuracy before you start spending the money, even if that reason is just that you WANT to be dead on a kilohertz boundary when you transmit. Nobody is going to throw you off the air because you are 10 Hz off. As the old gentleman proves quite adequately, it ain't the STUFF, it's what you DO, that is all the fun. That said, IS there a GPS governed 10 Mhz source to be had out there for something less than a third world national debt? 73, Guy. On Sun, Mar 20, 2011 at 10:02 AM, gold...@charter.net wrote: So if I understand correctly this soon to be option is basically constantly adjusting the frequency of the K3 to be correct. Or in other words a constant adjustment to the reference oscillator. This could be a real nice to have, as I have been re-adjusting (zero beating to WWV) to try and tune my K3 to be spot on. The reason I have been doing this is that I was thinking I was off frequency but I think that many radio's out there are off. Thanks, now I need even more money. Don KD8NNU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
My reason for wanting one of them is to maintain a stable frequency on VHF and UHF. 73, Tom N5GE On Sun, 20 Mar 2011 14:45:59 +, Rick Stealey rstea...@hotmail.com wrote: Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
I'm guessing this is really useful for EME at UHF. 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
Re: [Elecraft] Installed K3EXREF
Jim asked: What's a GPSDO setup go for including an antenna? 73 jim ab3cv You can put together a GPSDO system with 10 MHz output for less than $200. Here's just one example: Ebay item # 290322053618 By buying the items separately, you can sometimes do even better on price. The Trimble thunderbolts are very popular because a lot have been pulled from mobile phone tower sites during upgrades. I use one here to phase-lock my HPSDR system and it works well. Bruce, N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/10 in Attic Looking for Six Meters
On Field Day in 2009 I took a look at 6-meters. Mind you, my antenna is a dipole, mounted inverted-vee style, with the apex at 45 feet that consists of two wires fed in parallel, one cut for 80-meters and the other for 40-meters. The RG-8 run is about 175'. It's hot in Tucson in June so a few clubs head for the mountains near here and operate from the (relative) cool 8000-9000+ feet altitude. One of those line-of-sight stations was cluttering up 50.125 and covering up some Es stations. So I tuned a bit lower in frequency and heard a CW CQ. It was JL8GFB. I gave a call, expecting nothing and he came right back to me. He continued to call CQ for quite a while without any further takers. An hour and ten minutes later, I heard JA7WSZ calling CQ and worked him too. So the band was open to JA for over an hour and no one was paying attention. Considering the mismatch loss in the line my ERP was probably a few watts. I did have a HB receiver preamp on the K3, however. Wes N7WS --- On Sun, 3/20/11, Phil Debbie Salas dpsa...@tx.rr.com wrote: It is amazing what you can do with just a dipole on 6-meters when the band opens - though not sure about mounting it inside your attic. I've been using just a 6-meter dipole mounted on my chimney here in the Dallas area for probably four years now. No problem working all over the country when the band opens, though I have been using my K3 at 100 watts (IC-706MKIIG prior to the K3). Just upgraded to a 4-element 6-meter beam - and I'm field testing a KPA500! Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
While this sounds interesting, has any progress been made for those of us who have the TCXO to be able to program its printed offsets in the firmware and have it act on them? The fields are currently there in the K3 utility but as yet unused, as I understand it. I would be pleased to have this functionality enabled. 73, de Nate -- The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true. Ham radio, Linux, bikes, and more: http://www.n0nb.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT elecraf/K4TMC??
I ran a scan using Malwarebytes and Spybot SD and had no hits. I ended up blocking k4...@aol.com at the server level and this seems to have solved the problem. Sorry Harry that this happened to you. I've seen this happen on other list servers before but never to this extent. If I recall they were on YahooGroups and Yahoo must take pretty quick actions to solve because it never lasts long. I really hate spammers.. On 3/19/2011 9:37 PM, Paul Saville wrote: Henry, It is likely that your computer is or was infected with some malware that allows it to be used as a spam relay. Get a friend (who has an un-infected PC) to download and burn the AVG Rescue CD from avg dot com (it's free). Boot and scan from the CD and see what it finds. (I am an AVG customer, but have no other connection with them.) 73 Paul ZL3IN On 20/03/2011 11:11 a.m., k4...@aol.com wrote: Gary and all Elecraft users, I apologize for any spam that has been generated from my email account. I have taken measures to hopefully preclude this from happening again. Somehow, after over 10 years with the current account, my email account was compromised. Not sure how it happened, but I started getting hundreds of failed email notes in my spam filter. Since no one notified me of the issue, I was not aware of it until yesterday afternoon. 73, Henry Pollock - K4TMC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- 73, Gary K9GS Check out K9NS on the web: http://www.k9ns.com Greater Milwaukee DX Association: http://www.gmdxa.org Society of Midwest Contesters: http://www.w9smc.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] Auto-Tuner Recommendations...
I am waiting for the KAT500 like many others but I may still want to buy an auto tuner for my K3 now if the KAT500 is a ways off. Actually, I may even want two auto-tuners (or, maybe not). But, I also have my backup rig, an Icom 756 Pro III plus Icom PW-1 for any SSB I do with power. So, an auto-tuner hefty enough for a 1 KW signal might be useful. Alternatively, if the quality is good and the price reasonable (under $500) I might consider a 100 to 200 watt class auto-tuner. The Palstar AT-Auto is expensive and sophisticated but I hear that it does not work with the K3 (at least, I work in the fashion expected). I know of the MFJ auto tuner too but I am not sure how that works with the K3 so I am looking for any users out there in K3-land who might comment. 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
Re: [Elecraft] Don w3fpr
All, I can't speak highly enough of Don. His knowledge of the K2 and related is truly amazing. He, through a dozen or more emails, helped me diagnose a crazy problem with my KPA-100. Thanks a million Don ! Gene K1NR K2 6xxx On Sun, 20 Mar 2011 04:00:36 -0700 (PDT) K9OSC k9os...@yahoo.com wrote: I certainly second that. Don has been more than just a resource for me, but a huge problem solver. Not only is he tolerant of new owner's questions, but he resolves them in a most professional manner. Thank you Don, Bob - K9OSC -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-w3fpr-tp6188217p6189226.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 - Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Don w3fpr
Don is an Elecraft GOD!!! I am not worthy. Well, maybe a little. Phil Santa Fe __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Auto-Tuner Recommendations...
I really prefer the LDG tuners over the MFJ. I have several and they all work well. I also have an MFJ tuner so my comparison is based on side-by-side operation. Right now, I have the AT-600Pro in line with the K3/100 and the the Ameritron ALS-600. I have very good results running into a 160 feet doublet fed with good quality 300 ohm twinlead. I have a DX Engineering 1:1 current balun inline after the tuner. This is a very effective setup. 73, Doug -- K0DXV On 3/20/2011 10:33 AM, Phil Hystad wrote: I am waiting for the KAT500 like many others but I may still want to buy an auto tuner for my K3 now if the KAT500 is a ways off. Actually, I may even want two auto-tuners (or, maybe not). But, I also have my backup rig, an Icom 756 Pro III plus Icom PW-1 for any SSB I do with power. So, an auto-tuner hefty enough for a 1 KW signal might be useful. Alternatively, if the quality is good and the price reasonable (under $500) I might consider a 100 to 200 watt class auto-tuner. The Palstar AT-Auto is expensive and sophisticated but I hear that it does not work with the K3 (at least, I work in the fashion expected). I know of the MFJ auto tuner too but I am not sure how that works with the K3 so I am looking for any users out there in K3-land who might comment. 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA 100 DC power Plug
Dear Sir, Can anyone help I need replace the plugs (black and Red) on the end of my high power DC lead, as they have over heated and now misshapen. I can source locally if I knew what they are called or what series of connector they are. Failing that I will need to order some replacements. No damaged has occurred on the KPA 100 input socket/plug BR Andrew -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-100-DC-power-Plug-tp6190004p6190004.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
There have been some homebrew GPS standards in the literature for those who like melting solder. One was in QST back in July '98. AA engineering is offering circuit boards and has the original QST article on their site (http://www.a-aengineering.com/ ) I certainly agree with David that the K3 needs no apologies for its inherently outstanding frequency stability. The K3EXREF just makes it better :-) Ron AC7AC -Original Message- The K3 is indeed sufficiently accurate for amateur use, but if you already have a 10 MHz Rubidium, Caesium or GPS standard, Rick, then why not couple it up your K3? It's just another refinement and helps to put yours existing frequency standard to good use. 73 de David G4DMP In a recent message, Rick Stealey rstea...@hotmail.com writes Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA 100 DC power Plug
They are Anderson PowerPole connectors. They are available just about everywhere including direct from Elecraft. Info on ordering from Elecraft is in the manual. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Andrew UK Sent: Sunday, March 20, 2011 10:31 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KPA 100 DC power Plug Dear Sir, Can anyone help I need replace the plugs (black and Red) on the end of my high power DC lead, as they have over heated and now misshapen. I can source locally if I knew what they are called or what series of connector they are. Failing that I will need to order some replacements. No damaged has occurred on the KPA 100 input socket/plug BR Andrew -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-100-DC-power-Plug-tp6190004p6190004 .html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Don w3fpr
Gee guys, we have to work with Don. Don't swell his head too big! ;-) :-) :-) I can just see Don right now - he is either blushing with embarrassment, or grinning ear-to-ear. You deserve the accolades, my friend. Jack Brindle, W6FB On Mar 20, 2011, at 10:15 AM, Phil Townsend wrote: Don is an Elecraft GOD!!! I am not worthy. Well, maybe a little. Phil Santa Fe __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
See URL:http://www.jrmiller.demon.co.uk/projects/ministd/frqstd.htm 73, Lyle KK7P I have no financial interest in James' products. I know from decades of working with him that his stuff is meticulously engineered and optimised. LJ That said, IS there a GPS governed 10 Mhz source to be had out there for something less than a third world national debt? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Installed K3EXREF
Rick, For the majority who only do CW/SSB on HF, adding the EXREF is probably unnecessary. The TCXO-3 holds the K3 within 14-Hz on 28-MHz. The EXREF improves that by an order of magnitude to 1.4 Hz. This becomes necessary for some digital modes like JT-65. That is mainly used on eme on 144 and higher bands. If you operate on the microwave bands oscillator error is mulitplied so that is becomes hard to get much freq. accuracy or stability. On 1296 I use a transverter that has an external locked PLL LO. That keeps it within 1-Hz. Typically one would not have better than a few KHz with a xtal oscillator on 105.67 MHz multiplied x12 = 1268 MHz. Getting the accuracy on the transverter LO without also having it on 28-MHz IF radio is kind of being only Half-done. With the K3 EXREF my combined 1296 freq. will equal that of the K3. That is important when eme signals are so weak they cannot be detected by ear. Add frequency errors to that and the task becomes very tough. Now consider doing that at 10-GHz. A few of us with K3's are mw'ers and/or eme'rs so the accuracy is very important to us. Sidenote: Use of 10-MHz WWV is nearly impossible if you run a 10-MHz station reference oscillator. I have a mw freq.counter that uses a rubidium external reference. I use it to check the frequency of my 10-MHz OCXO which I run thru a 4-way distribution amp to feed things in the shack: 1) K3EXTREF 2) 144/28 Transverter (DEMI) 3) 1296/28 Transverter (DEMI) 4) future item The OCXO was bought off e-bay for $39.99+shipping, and is very stabile but does drift over months so I tweak it back to the Rubidium about 4 times a year. It runs 24/7 on a battery supply floated by a charger. All can be seen on my website (including newly added instructions for adding sub-Rx IF Out). 73, Ed - KL7UW -- Message: 33 Date: Sun, 20 Mar 2011 14:45:59 + From: Rick Stealey rstea...@hotmail.com Subject: Re: [Elecraft] Installed K3EXREF To: elecraft@mailman.qth.net Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
Another benefit of the GPS-DO is that routine calibration to ensure long-term accuracy is the responsibility of the U.S. Department of Defense, and funded by U.S. tax payers. Unless there's a hardware-related problem with the GPS-DO, calibration is someone else's problem and expense. The user need only care that the unit has attained Lock status. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft SSB Net Announcement
Net is now on 14.317 Kurt From: ph...@riousa.com To: elecraft@mailman.qth.net Date: Sat, 19 Mar 2011 13:58:24 -0700 Subject: [Elecraft] Elecraft SSB Net Announcement The weekly SSB net will be tomorrow (3/20/11) at 1800z on 14.314 MHz. I will be the net control station from western Oregon. If we have intentional QRM, can those of you with steerable antennas please try to get a bearing on the offending signal. Let's hope the problem doesn't continue. See you there. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] An unobtrusive 6M antenna for your K3
I don't know if your antenna in the attic is due to antenna restrictions or building construction, but here's a suggestion. My K3 has a second receiver whose sole purpose is to monitor six meters. It's antenna connection only appears at the BNC jack on the rear of the K3. The antenna for the second receiver is a low-band GP comprised mostly of Maxrad mobile antenna parts, mounted on a base station antenna conversion kit. The base station kits are intended for VHF use, and the four supplied radials are short for 6M. I've replaced them with 55 whips intended as the radiator of a low-band mobile antenna. I used five of the 55 whips intended for the lower portion of the low-band commercial band to build my 6M GP. While not invisible, the antenna can be very unobtrusive., and could be mounted on a toilet vent pipe close to the roof and might be not noticed. I can provide a photo to anyone interested. BTW, it's a little-known fact that the 5/8-wave 2M mobile antennas that many of us have on our vehicles are very close to resonance on 6M and will work reasonably well on that band. 73! Ken Kopp - K0PP elecraftcov...@gmail.com http://tinyurl.com/7lm3m5 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Saving JT65-HF freq mode in memories
I am just beginning to play around with JT65-HF and I saved the various HF frequencies to memory positions using the K3 Frequency Memory Editor. When choosing the mode using the memory program, DATA is one of the choices. But there are no specific data mode choices. As a result, the data modes were always stored as AFSK A. I want DATA A. In an attempt to correct this I went to each of the saved frequencies, manually changed the data mode to DATA A and pressed V-M to overwrite the memory. This did not fix the problem. Each memory position still came back as AFSK A. Any ideas. 73, Mike K2MK -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Saving-JT65-HF-freq-mode-in-memories-tp6190175p6190175.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3EXREF
If you want to participate in the WSPR project you need to be within 1Hz. 73 Max/ZL4VV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] Lack of audio punch
Hi all, I listened to my QSOs with GW4BLE in the ARRL DX SSB test via his web applet (very cool!) at http://gw4ble.dxlist.co.uk/index.php IMO, my audio lacks punch. I'm using the MH-2 mic with comp at 26. TX EQ settings: -16 -16 -12 0 0 +6 +6 +4. Any thoughts on how to improve the punch? My callsign was pre-recorded and stored in the K3 DVR. When listening thru the MON, live audio sounds much better than the DVR playback of my callsign. Does recorded audio in the DVR go through the TX EQ filters either when recorded or during playback? How about compression? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Another K3/100 is on the air (AC0LP)
Assembly was absolutely fool proof - except that I was the fool when I could not find one of the small parts bags that had slipped under a cardboard box flap. Fortunately, I kept looking and found the errant parts so that the build could be finished and the rig on the air in two days. Hopefully, the parts group at Elecraft will forgive me for the email requesting the missing part followed in a few hours by a second I Found It email. So far, only one contact on 20 meter PSK31 - just enough to prove that all was really working as intended - now it's time to get really deeply into the manual and get the configuration where I want it and my comfort with the controls up to par as well. Jobst AC0LP K3/100 SN:5283 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Don w3fpr
Thanks everyone, Thank you 'heaps and bunches' all for the very nice remarks. But I would certainly not attempt to elevate myself to divinity status :-) -- I do hope to be able to continue to be worthy of your appreciative comments for some long time. I am always willing to share those things I have learned over the past 12 years of my relationship with Elecraft, it has been a fun experience, and has been very rewarding. Thanks to Wayne and Eric for creating the K2 back in 1999 where I had the beginning of the fun. I like to do what I can to help other hams make the best of their equipment. Yes Jack, I have not changed (other than getting a bit older) - I think you and the rest of those at Elecraft can continue to work together with me :-) . I will see some of you at Dayton - I will probably spend about half my time at the Elecraft booth again this year, so stop by and say hello. 73, Don W3FPR On 3/20/2011 1:50 PM, Jack Brindle wrote: Gee guys, we have to work with Don. Don't swell his head too big! ;-) :-) :-) I can just see Don right now - he is either blushing with embarrassment, or grinning ear-to-ear. You deserve the accolades, my friend. Jack Brindle, W6FB On Mar 20, 2011, at 10:15 AM, Phil Townsend wrote: Don is an Elecraft GOD!!! I am not worthy. Well, maybe a little. Phil Santa Fe __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
I believe that MH2 needs bias - I assume you had that set ? 73 de M0XDF -- Do not pray for tasks equal to your powers; pray for powers equal to your tasks. -Phillips Brooks, bishop and orator (1835-1893) On 20 Mar 2011, at 21:06, Barry wrote: Hi all, I listened to my QSOs with GW4BLE in the ARRL DX SSB test via his web applet (very cool!) at http://gw4ble.dxlist.co.uk/index.php IMO, my audio lacks punch. I'm using the MH-2 mic with comp at 26. TX EQ settings: -16 -16 -12 0 0 +6 +6 +4. Any thoughts on how to improve the punch? My callsign was pre-recorded and stored in the K3 DVR. When listening thru the MON, live audio sounds much better than the DVR playback of my callsign. Does recorded audio in the DVR go through the TX EQ filters either when recorded or during playback? How about compression? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
Yes. Barry W2UP On 3/20/2011 3:39 PM, David Ferrington, M0XDF wrote: I believe that MH2 needs bias - I assume you had that set ? 73 de M0XDF -- Barry Kutner, W2UP Lakewood, CO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
Barry, How far up is the ALC meter kicking. It should be showing 5 to 7 bars. If it is lower than that, go back to the beginning and adjust your mic gain - first set compression to zero, then set TX TEST so you don't bother others on the air, and adjust the mic gain until you illuminate ALC to 5 to 7 bars with normal speech. Then add compression as you wish (you can use the monitor to judge that). With the MH2, there is already some high frequency peaking, so you may do well to set all of the TX EQ bands to 0 except for the two lowest bands. No guarantees, but it is worth a try. 73, Don W3FPR On 3/20/2011 5:06 PM, Barry wrote: Hi all, I listened to my QSOs with GW4BLE in the ARRL DX SSB test via his web applet (very cool!) at http://gw4ble.dxlist.co.uk/index.php IMO, my audio lacks punch. I'm using the MH-2 mic with comp at 26. TX EQ settings: -16 -16 -12 0 0 +6 +6 +4. Any thoughts on how to improve the punch? My callsign was pre-recorded and stored in the K3 DVR. When listening thru the MON, live audio sounds much better than the DVR playback of my callsign. Does recorded audio in the DVR go through the TX EQ filters either when recorded or during playback? How about compression? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3EXREF
If you want to participate in the WSPR project you need to be within 1Hz. 73 Max/ZL4VV Actually, No. You just want to -drift- less than one Hertz during your transmission period. Absolute accuracy is not required. A stable transmitter is. 73, Bruce, N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3EXREF
Right. The WSPR receive window is a couple of hundred hz wide. Your freq doesn't have to be accurate, but your clock should be within a second of the right time. BTW, you can use WSPR to calibrate your rx and measure freq within a hz or so; Dr. Taylor's instructions are in the latest documentation. The various JT modes and the ideas behind them are a massive contribution to amateur radio. It's cool to share your hobby with Nobel winners. Tony KT0NY On Sun, Mar 20, 2011 at 5:35 PM, Bruce Beford bruce.bef...@myfairpoint.netwrote: ...You just want to -drift- less than one Hertz during your transmission period. Absolute accuracy is not required __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
The K3EXREF is in field test now, as far as I know. It might be a little while before Elecraft puts it up for sale. Extreme accuracy probably has two psychological and one scientific source: - The need to put the K3 dead-on frequency is reassuring to folks that aren't sure it stays that way mostly as-is with the TCXO. - The desire to be a frequency authority, and be able to help others when they're off-freq. Hams with older rigs sometimes end up shifted off freq. On HF, I hear this a lot. - Knowing exactly what frequency you're on helps with band-edge issues, for example between the Extra-only CW sub-bands and the general CW sub-band. With a 1 Hz readout, this is seldom a problem, but it gets even better when the last digit also indicates the actual carrier freq. The K3 with just the stock TCXO holds the reference at somewhere below 1 PPM anyway. This is probably accurate enough for almost everyone, but some want near-perfect accuracy. GPS time has an uncertainty of around 0.3 nS, which is pretty low compared to 1PPM. No TCXO can beat that, but maybe an OCXO can? 73, matt W6NIA On Sun, 20 Mar 2011 14:45:59 +, you wrote: Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] KR3 SW Receiver
Thanks for a good answer, Ed. No, I was not asking for someone to design and market a 20 - 500 KHz transverter (for me). I would rather do it myself, but lack the time at present. Will look at the link you posted. Thanks and 73, matt W6NIA On Fri, 18 Mar 2011 08:21:08 -0800, you wrote: The simple SBL-1 mixer can already do that. I'm not sure how low in freq. it would work, but 20-KHz seems reasonable. Just tune the K3 at F to F-480 with an LO = F-500 KHz Using an LO = 3-MHz the 80m band could be translated (mixed) down to 0-500 KHz (with some limitations near the bottom end). The mixer would likely need a preamp ahead of it and probably a good tunable preselector (tunable filtering). No firmware needed to do this. For full transceiver operation just add a second mixer for the transmit path to the KVX-3. The full G3XBM transverter will provide 5-8w output: http://sites.google.com/site/g3xbmqrp/Home/136k I think the part of the discussion is: if someone started working on a receive converter for 20 to 500 KHz. You can do it yourself. But if this is saying: I wish someone would make me something, then are there enough buyers to make such an effort worthwhile? Lets say I can build this and sell it for $250. I invest $5,000 to make up 20 of them. How long till I make back my investment? This is so simple why would anyone buy one from me? 73, Ed - KL7UW -- Message: 34 Date: Thu, 17 Mar 2011 21:48:31 -0700 From: Matt Zilmer mzil...@verizon.net Subject: Re: [Elecraft] [Elecraft_K3] KR3 SW Receiver. To: Ken Alexander k.alexan...@rogers.com Cc: elecraft@mailman.qth.net, elecraft...@yahoogroups.com Message-ID: q3o5o6hj8cnup6j0v4gpqcqa1gorc9k...@4ax.com Content-Type: text/plain; charset=ISO-8859-1 Maybe if someone started working on a receive converter for 20 to 500 KHz, with TX ability on 470 to 500, the firmware would come for it? Could test it with any IF on which the K3 can receive. The K3 can already be operated as a transverter IF at 1 mW for the 500 KHz range, albeit with a few restrictions. Too bad I don't have the time here. But a lot of Elecraft projects get started because someone from outside the company thought them up. If there is enough pent up demand, somebody will work on this. The K3 would make a !great! SWL receiver, but it isn't very well known outside the amateur community (my guess). 73, matt W6NIA 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole filter
Hi everyone, After trying for the past few months to learn CW I have finally decided to write the idea of me learning CW off as a bad idea as it appears that I rythmically challenged and just cannot get my head around it. (I'd also make a very bad Catholic too but lets not go there!) :-) So, I'd like to swap my 8 pole 400HZ CW filter for a 1.8KHz 8 pole filter. I will pay the postage cost to send my filter to you if you do the same with your filter that you send to me. Please contact me off-list. Thanks for your time, Jeff Cochrane - VK4BOF Elecraft K3 # 4257 + PR6 + K144XV = multiband greatness! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
Listening on phones here, it seems to me your audio lacks high-frequency emphasis. The other signals have much more than yours, and crisp highs are critical to punch (which is why the YL's used to have it over us on the old AM xmtrs ;-) Ron AC7AC -Original Message- Hi all, I listened to my QSOs with GW4BLE in the ARRL DX SSB test via his web applet (very cool!) at http://gw4ble.dxlist.co.uk/index.php IMO, my audio lacks punch. I'm using the MH-2 mic with comp at 26. TX EQ settings: -16 -16 -12 0 0 +6 +6 +4. Any thoughts on how to improve the punch? My callsign was pre-recorded and stored in the K3 DVR. When listening thru the MON, live audio sounds much better than the DVR playback of my callsign. Does recorded audio in the DVR go through the TX EQ filters either when recorded or during playback? How about compression? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
Hello Barry! Any thoughts on how to improve the punch? Different voices have different amplitude levels at the pitches that penetrate, so the appropriate settings are all a matter of testing and adjusting and testing again. My callsign was pre-recorded and stored in the K3 DVR. When listening thru the MON, live audio sounds much better than the DVR playback of my callsign. Does recorded audio in the DVR go through the TX EQ filters either when recorded or during playback? How about compression? DVR audio is substituted in the path instead of mic audio. So, sending a DVR message you can then adjust TX EQ and CMP and hear the effect of the adjustments. Using TX TEST mode, you can do this without radiating a signal or warming your dummy load. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] Lack of audio punch
On 3/20/2011 3:28 PM, Don Wilhelm wrote: ow far up is the ALC meter kicking. It should be showing 5 to 7 bars. If it is lower than that, go back to the beginning and adjust your mic gain - first set compression to zero, then set TX TEST so you don't bother others on the air, and adjust the mic gain until you illuminate ALC to 5 to 7 bars with normal speech. Then add compression as you wish (you can use the monitor to judge that). YES. VERY often, I hear audio that is so badly distorted that it is muffled and hard to copy. The fix is VERY simple -- TURN DOWN THE AUDIO GAIN! The directions Don has given you (and that are in the Elecraft manual) are exactly the right way to get there. As to compression, I like to see no more than about 10 dB of compression on voice peaks. Use the meter display that allows you to see ALC and COMP. The NUMBER that you need to get there doesn't matter. What matters is how high the COMP meter goes. With the MH2, there is already some high frequency peaking, so you may do well to set all of the TX EQ bands to 0 except for the two lowest bands. No guarantees, but it is worth a try. All of the Heil mics I've heard have been harsh, so the last thing I would do is add high peaking (that is, boosting the higher bands). I WOULD roll off the lower two or three bands the maximum amount. BTW -- you should ALWAYS adjust TXEQ BEFORE setting Mic Gain and COMP, because TXEQ can have a HUGE effect on those settings. 73, Jim Brown K9YC. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
This was an excellent explanation. I got a Trimble Thunderbolt off eBay for less than 200 bucks. It came from China and came with an antenna and power supply. If you are going to get one of the ones that come from China, make sure you get the power supply with it. The domestic Thunderbolts have a unipolar supply but the ones from China were specials and require a special bipolar power supply. As long as you're getting the power supply with it, you're OK. I have not noticed any noise from the power supply from China. I expect ferrites may solve the problem if found. It works just fine with the stock Thunderbolt software. I've had mine for about 6 months and I've run tests using the Thunderbolt software. The PC monitoring software allows you to monitor the errors detected and log them. The accuracy is quite good. Although I see occasional errors greater than 1 part in 10^9, most of the measured errors are far less than 1 part in 10^9. I can't find any of the spreadsheets I generated (from many hours of operation) right now but I seem to recall that 1 sigma was down around 1 part in 10^10. This translates into a 1 Hz error at 10 GHz. The +/- 1 Hz error in the K3 is much greater than the accuracy of the GPSDO My primary reason for getting the GPSDO was for microwave and EME operations. Being able to use it with the K3 is a plus. I'm likely to be an early adopter of the production units when they become available. I will probably order my second K3 with a K3EXREF. Jerry - K0TV - Original Message - From: Paul Christensen w...@arrl.net To: elecraft@mailman.qth.net Sent: Saturday, March 19, 2011 9:34 PM Subject: Re: [Elecraft] Installed K3EXREF I installed it on Friday in about 30 minutes, but I'm comfortable with my way around the K3. I would think that most users could install it in about an hour or less. Installation is actually very simple with very few parts involved. K3EXREF came with an SMA connector and SMA to BNC between-series adapter. Performance is exactly as promised by Elecraft. Although K3EXREF will not phase lock the K3 to the external frequency source, I'm finding that it stays within 1 Hz on 20m when locked to CHU at 14.670 MHz. I'm also finding that testing for zero-beat to WWV at 10 MHz is not a good idea in my shack, and perhaps yours too. There are many 10 MHz signals being emitted by nearby appliances, LAN routers, security system, Ethernet boards, etc. That common, even frequency is everywhere in a household these days. In much of North America, CHU is an excellent source for testing since it keeps cesium accuracy like WWV but the odd frequency of CHU is a real benefit since the chance for beating against extraneous signals is much smaller than at 10 MHz. Testing at a higher frequency rather than say the MW broadcast band also provides for a reasonably good account of how the K3EXREF performs. After installation, I would also suggest not trying to test zero beat K3EXREF against commercial MW or SW BC stations since their carriers are allowed to deviate much more than the cesium-based time and frequency standards of CHU and WWV. Commercial AM broadcast station frequencies are typically only accurate to about +/- 20 Hz although most are better than that. The K3's 49 MHz oscillator is only adjusted at intervals between 4 and 8 seconds by K3EXREF in order to minimize jitter. The K3 retains its original phase noise performance since the external reference is not used internal to the K3's frequency generating scheme. Think of it this way -- K3EXREF is like lightly touching the 49 MHz oscillator with a feather every few seconds if necessary to keep it within 1 Hz or so. Also, the K3 frequency stays accurate even at the moment of powering up the K3. Kinda' fun to watch the 49 MHz oscillator display change during warm-up as it's being corrected and compared against the external reference. External references: There are three primary types, and all can be purchased for less than USD $150 on the used market. Cesium standards (a fourth type) are also available but are generally much more expensive, complicated, and won't offer any benefit to K3 users since K3EXREF limits resolution and accuracy to about 1 Hz. The first type is the GPS Disciplined Oscillator (GPS-DO). This type of standard locks itself onto the visible GPS satellites orbiting the sky. Requires a GPS antenna and is self-calibrating to the GPS satellites. The GPS-DO's time and frequency averages from the visible satellites, each satellite having it's own on-board cesium-based oscillator. Long-term accuracy is usually good to at least 1 x 10^-11. Extreme accuracy and only a magnitude or two behind cesium. Look for Hewlett-Packard Z3801A, Z3816A, Trimble Thunderbolt, Brandywine, Symmetricon, and Datum models. Short list, but many others available. Rubidium is the next type. No GPS tracking needed. Accuracy
Re: [Elecraft] Installed K3EXREF
Speaking of band edges During the recent ARRL DX SSB contest, there was a station operating on 7127. Because of the lower SB extending to 7124 (assuming 3k bandwidth) he was operating out of the US phone band. He was a European but he was working simplex. I bet there was an OO sitting there sending notices to every US contact he made. If you KNOW your frequency to 1 Hz, you can legally operate with your dial on 14149.9 and still be in the band. Likewise 7300.1. Also RTTY on 3601, etc. etc. A super accurate transmitter has it's advantages :-) Jerry - K0TV - Original Message - From: Matt Zilmer mzil...@verizon.net To: Rick Stealey rstea...@hotmail.com Cc: elecraft@mailman.qth.net Sent: Sunday, March 20, 2011 6:48 PM Subject: Re: [Elecraft] Installed K3EXREF The K3EXREF is in field test now, as far as I know. It might be a little while before Elecraft puts it up for sale. Extreme accuracy probably has two psychological and one scientific source: - The need to put the K3 dead-on frequency is reassuring to folks that aren't sure it stays that way mostly as-is with the TCXO. - The desire to be a frequency authority, and be able to help others when they're off-freq. Hams with older rigs sometimes end up shifted off freq. On HF, I hear this a lot. - Knowing exactly what frequency you're on helps with band-edge issues, for example between the Extra-only CW sub-bands and the general CW sub-band. With a 1 Hz readout, this is seldom a problem, but it gets even better when the last digit also indicates the actual carrier freq. The K3 with just the stock TCXO holds the reference at somewhere below 1 PPM anyway. This is probably accurate enough for almost everyone, but some want near-perfect accuracy. GPS time has an uncertainty of around 0.3 nS, which is pretty low compared to 1PPM. No TCXO can beat that, but maybe an OCXO can? 73, matt W6NIA On Sun, 20 Mar 2011 14:45:59 +, you wrote: Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/10 in Attic Looking for Six Meters
On Sun, 2011-03-20 at 12:00 -0400, elecraft-requ...@mailman.qth.net wrote: Re: [Elecraft] K3/10 in Attic Looking for Six Meters I have a similar setup. I have a ~120 ft dipole made out of ribbon cable strung under my eaves, and wrapped around the sides of the house. Not ideal, but it is nearly invisible, and I have worked 44 of 50 states on 75m SSB, many contacts on 40m and 20m (mainly PSK31, but some SSB), several in Europe, all with K2/100 #7006 with an external autotuner. I'm in the planning stages for a better wire antenna in the backyard. David AJ4TF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
Jerry, RE: 14149.9 kHz --- I would not be comfortable cutting it that close in USB unless I was absolutely certain there was absolutely no energy in the SSB audio 0 to 100 Hz range. I would not trust any transmitter (no matter how good) in that regard. Keep it all within the band limits to be safe. 73, Don W3FPR On 3/20/2011 9:12 PM, Jerry Muller wrote: Speaking of band edges During the recent ARRL DX SSB contest, there was a station operating on 7127. Because of the lower SB extending to 7124 (assuming 3k bandwidth) he was operating out of the US phone band. He was a European but he was working simplex. I bet there was an OO sitting there sending notices to every US contact he made. If you KNOW your frequency to 1 Hz, you can legally operate with your dial on 14149.9 and still be in the band. Likewise 7300.1. Also RTTY on 3601, etc. etc. A super accurate transmitter has it's advantages :-) Jerry - K0TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Installed K3EXREF
Most of the applications where extreme accuracy is really needed are transverters at microwave freqs. That is a lot of the feedback received here. I believe that. It makes the most sense. A couple of PPM is plenty good for HF, imho. But there are those of us that have the frequency fetish. See the FMT for example. Dunno how many OO's have the capability to measure overall output to within a few Hz, nor how many can measure amplitudes to required levels of suppression. There must be some, and some are K3 owners. I got cited once, in 1973 by the FCC monitoring station in Kingsville, TX, when my dial marker was off by about 1 KHz. With the K3, nothing like that is a worry. But the K3EXREF makes it a certainty that you will have no excuse 73, matt W6NIA K3 #24 On Sun, 20 Mar 2011 21:12:19 -0400, you wrote: Speaking of band edges During the recent ARRL DX SSB contest, there was a station operating on 7127. Because of the lower SB extending to 7124 (assuming 3k bandwidth) he was operating out of the US phone band. He was a European but he was working simplex. I bet there was an OO sitting there sending notices to every US contact he made. If you KNOW your frequency to 1 Hz, you can legally operate with your dial on 14149.9 and still be in the band. Likewise 7300.1. Also RTTY on 3601, etc. etc. A super accurate transmitter has it's advantages :-) Jerry - K0TV - Original Message - From: Matt Zilmer mzil...@verizon.net To: Rick Stealey rstea...@hotmail.com Cc: elecraft@mailman.qth.net Sent: Sunday, March 20, 2011 6:48 PM Subject: Re: [Elecraft] Installed K3EXREF The K3EXREF is in field test now, as far as I know. It might be a little while before Elecraft puts it up for sale. Extreme accuracy probably has two psychological and one scientific source: - The need to put the K3 dead-on frequency is reassuring to folks that aren't sure it stays that way mostly as-is with the TCXO. - The desire to be a frequency authority, and be able to help others when they're off-freq. Hams with older rigs sometimes end up shifted off freq. On HF, I hear this a lot. - Knowing exactly what frequency you're on helps with band-edge issues, for example between the Extra-only CW sub-bands and the general CW sub-band. With a 1 Hz readout, this is seldom a problem, but it gets even better when the last digit also indicates the actual carrier freq. The K3 with just the stock TCXO holds the reference at somewhere below 1 PPM anyway. This is probably accurate enough for almost everyone, but some want near-perfect accuracy. GPS time has an uncertainty of around 0.3 nS, which is pretty low compared to 1PPM. No TCXO can beat that, but maybe an OCXO can? 73, matt W6NIA On Sun, 20 Mar 2011 14:45:59 +, you wrote: Excellent posting by W9AC, a great reference, to be saved. Now I wonder if it would be possible for someone to enlighten me as to the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz but I can't really believe the absolute accuracy of that number unless I get a K3EXREF? But if that is the case, my question would still remain, wouldn't it? Not that I need something else to put on my list ahead of my P3 and sub receiver. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Report for March 20th 21st, 2011
Good Evening, The first net went rather well. Some fading but mostly signals were good. The second net was plagued by RTTY signals. I found an open frequency but then got zero beat a couple times by RTTY stations. I wonder if they were running above 7105 kHz? There may prove to be an option during the heavier contests. Looks like spring has come in like a lion for many of us. The folks in Northern California are getting rain and wind. But out east there is some warming. Only in Southern California did I hear warmer temperatures although GA sounded nice at 73 degrees. Wait, here is an 82 degree report from Oklahoma. On to the lists = On 14050.5 kHz at 2200z: NK6A - Don - CA - K3 - 4569 NO8V - John - MI - K3 - 820 W0CZ - Ken - ND - K3 - 457 N0TA - John - CO - K3 - 994 K1THP - Dave - CT - K3 - 686 AB9V - Mike - IN - K3 - 398 K4JPN - Steve - GA - K2 - 1422 K0DTJ - Brian - CA - K3 - 4113 N0AR - Scott - MN - K2 - 4866 N7KRT - Jeff - TX - K2 - 5471 K5MEC/W8OV - Dave - OK On 7045.16 kHz at z: K6PJV - Dale - CA - K3 - 1183 K0DTJ - Brian - CA - K3 - 4113 NO8V - John - MI - K3 - 820 It would be nice to have a relay station again. Is anyone in the middle part of the continent willing to call the net for a while so the folks in my skip zone can get a chance? It does not take very long and is not difficult. If I can do it I am sure you can too. Email me if you would like to help. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB Net results (3-20-11)
Well, we started the net on 14.314 (our usual frequency). We quickly drew heavy QRM, with harangues to get off of their frequency. I got about 8 of our stronger stations checked in, but the situation was deteriorating quickly. I looked up band, found quiet at 14.317 and took the net there. After a minute of being told to stay there and not come back to their frequency, we were left alone. It went well after that and we had 37 participants over the total 30 minutes. I think finding a new frequency is the best course of action - maybe in the 14.316 to 14.320 area. Here is the list of participants. Station NameQTH Rig S/N KO5YKen NM K3 4442 K6EQRoger CA K3 4629 AD5SX PaulNM K3 4645 KE4WY Jim KY K3 4864 W7QHD KurtAZ K2 1538 W4RKS Jim AL K3 3618 K4GCJ Gerry NC K3 1597 N1JMJohnAZ K3 2555 NZ0TBillKS K3 1502 K8DJC Nelson OH K3 560 W8YMO Harry OH K3 166 W2RWA DickNY K3 2603 AI4VZ George GA K3 2412 NT5QDon TX K3 4179 NF8JPaulMI K3 758 K4CCH Charles GA K3 3509 K5MEC DaveOK TS440 (W8OV at club station) W0FMTerry MO K3 474 KK7PLyleWA K3 3036 N5VEZ/m MikeMS W0CZKen ND K3 457 K5LAD Jim OK K3 1068 N1LQDaveMA Omni 5 W6VYBob CA K3 2765 KB3FBR Joe PA K2 6178 QRP KC5EFM/mArt NM IC706 AC0NM Glenn CA K3 2843 WB9JNZ EricIL K3 4017 KL7UW Ed AK K3 4340 N1RXBruce NH K3 559 N5ZMEarlAR K3 3223 KD1TH PaulNH K3 4882 WB8ENE Art OH K3 4319 W5ETJ GaryTX K3 3227 WA5BDU NickAR K3 1195 W9DVM PhilFL K3 1605 NS7PPhilOR K3 1826 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Heil headset
My new K3 works great on CW - love the way it sounds the intuitively logical controls - but I'm trying to figure out what part I need if any to connect my Heil Pro headset, with a PTT hand trigger. I see a larger stereo plug coming from the PTT switch a small one coming from the heaset (1 wire), which currently go to a Yaesu adapter to my old rig. The other two wires to the headset appear to be for the earphones (small stereo plug). Can I use PTT IN, STEREO PHONES MIC on the back just ignore the 8-pin connector on the front? Sorry if it is a dumb question. 73 Kate K6HTN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] Ooof.. Update
I'm having a similar problem after installing the KNB2. So, I triple checked component location and applicable polarity and all solder joints for bad joints or bridged/shorted solder pads; removed, checked and re-installed the 2 bandpass toroid chokes, checked the ID number on the caps. Checked the K2 RF board J12, and checked the mods to R88, R89 R90. ...and the K2 is still nearly deaf as a post. Next, I jumpered 1 6 on J12 and could then hear stations all over 40 meters. Checked WWV @ 10 MHz and I thought it was going to blow the speaker before I could turn down the AF gain. So it looks like I did not screw up the K2 itself. That is a relief. I'm guessing the next thing to do is check U2 for correct voltage output, and if that's OK see what I can measure on the RF amp. It's an SMD and mounted on one of those SMD piggy back things for PCBs made for the old school DIP ICs. Kinda frustrating, but it happens. Larry K5END On Tue, 2011-01-18 at 22:43 -0500, Don Wilhelm wrote: Try jumpering (with a piece of bent wire) between pins 1 and 6 of the J12 header. If receive comes back to life, you have a problem on the KNB2 board. Let us know the results. 73, Don W3FPR On 1/18/2011 10:26 PM, Brian Denley wrote: I am beginning to think I may have wacked or damaged the PIN diode for the T/R switch while adding the resistor for the KNB2. That might explain no receive or transmit that I am getting now. Does that make sense? Brian KB1VBF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Heil headset
Yes, you can do it all from the back panel and ignore the 8-pin Foster connector on the front panel. You'll need something to bridge the 1/4 phone plug on the Heil hand trigger to an RCA plug for PTT. Not a dumb question. I sometimes prefer the front panel headphone jack because I like pulling the plug out and having the speaker come on. There are menu ways of doing this, but I'm old fashioned. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kate Hutton Sent: Sunday, March 20, 2011 9:50 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Heil headset My new K3 works great on CW - love the way it sounds the intuitively logical controls - but I'm trying to figure out what part I need if any to connect my Heil Pro headset, with a PTT hand trigger. I see a larger stereo plug coming from the PTT switch a small one coming from the heaset (1 wire), which currently go to a Yaesu adapter to my old rig. The other two wires to the headset appear to be for the earphones (small stereo plug). Can I use PTT IN, STEREO PHONES MIC on the back just ignore the 8-pin connector on the front? Sorry if it is a dumb question. 73 Kate K6HTN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
