[Elecraft] [KX1] Anybody build a KX1 for 15/20M?
Has anybody tried to build a KX1 for 20 and 15m? Is it even possible? If so, please contact me off-list and let me know what's involved. Thanks and 73, Eric WD6DBM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: CFR-97 Amateur Radio type acceptance
Sorry, that is not exactly what the current regulation says. The following is taken from the Electronic Code of Federal Regulations, current as of January 06, 2014: Here is a link to that document: *http://tinyurl.com/lf7qqyk* Quote: §97.315 Certification of external RF power amplifiers. (a) Any external RF power amplifier (see §2.815 of the FCC Rules) manufactured or imported for use at an amateur radio station must be certificated for use in the amateur service in accordance with subpart J of part 2 of the FCC Rules. No amplifier capable of operation below 144 MHz may be constructed or modified by a non-amateur service licensee without a grant of certification from the FCC. (b) The requirement of paragraph (a) does not apply if one or more of the following conditions are met: (1) The amplifier is constructed or modified by an amateur radio operator for use at an amateur station. (2) The amplifier was manufactured before April 28, 1978, and has been issued a marketing waiver by the FCC, or the amplifier was purchased before April 28, 1978, by an amateur radio operator for use at that operator's station. (3) The amplifier is sold to an amateur radio operator or to a dealer, the amplifier is purchased in used condition by a dealer, or the amplifier is sold to an amateur radio operator for use at that operator's station. (c) Any external RF power amplifier appearing in the Commission's database as certificated for use in the amateur service may be marketed for use in the amateur service. [71 FR 66465, Nov. 15, 2006] __ Note the differences between the above text and the text below from a previous message. - Jim, KL7CC On 1/7/2014 11:43 PM, Edward R Cole wrote: This is spin off of the JARD certification thread. Regarding FCC type acceptance: CFR-47: 97.315 As a general disclaimer FCC regs are written legalese language which is almost impossible to completely translate to common language and logic. 97.315, b) Any external RF power amplifier or external RF amplifier kit...must be type accepted... This requirement does not apply if one or more of the following conditions are met: 1) The amplifier is not capable of operations below 144 MHz... 2) The amplifier was manufactured before April 28, 1978... 3) The amplifier was: (i) Constructed by the licensee, not from an amplifier kit, for use by the licensee... (ii) Modified by the licensee... 4) The amplifier was sold by an amateur operator to another amateur operator or to a dealer. 5) The amplifier is purchased in used condition by an equipment dealer from an amateur operator...and is further sold to another amateur operator... Disclaimer: This info was provided as general information does not construe providing legal advice by this writer. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] OT: CFR-97 Amateur Radio type acceptance
This is spin off of the JARD certification thread. Regarding FCC type acceptance: CFR-47: 97.315 As a general disclaimer FCC regs are written legalese language which is almost impossible to completely translate to common language and logic. 97.315, b) Any external RF power amplifier or external RF amplifier kit...must be type accepted... This requirement does not apply if one or more of the following conditions are met: 1) The amplifier is not capable of operations below 144 MHz... 2) The amplifier was manufactured before April 28, 1978... 3) The amplifier was: (i) Constructed by the licensee, not from an amplifier kit, for use by the licensee... (ii) Modified by the licensee... 4) The amplifier was sold by an amateur operator to another amateur operator or to a dealer. 5) The amplifier is purchased in used condition by an equipment dealer from an amateur operator...and is further sold to another amateur operator... Disclaimer: This info was provided as general information does not construe providing legal advice by this writer. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: CFR-97 Amateur Radio type acceptance
Jim, Thanks for the updated regs. My copy of CFR-47 is admittedly dated. But comparing the two I do not see a substantial difference in what the regulations say. The language has been streamlined a bit and minimized. I left out some detail to try keeping the main statements clear. I used ... to indicate a break in the copied text. One should always refer to the proper document for making any legal decisions, thus my disclaimer. subpara (2) is expanded to be more precise. Otherwise I see no regulatory change, only a re-write of the text. The main problem most of us have is that regulations are written such that questions always remain to what exactly they say. That is why you pay $300/hour attorneys specializing in FCC rules to get legal advice. 73, Ed - KL7UW At 11:57 PM 1/7/2014, Jim Wiley wrote: Sorry, that is not exactly what the current regulation says. The following is taken from the Electronic Code of Federal Regulations, current as of January 06, 2014: Here is a link to that document: http://tinyurl.com/lf7qqykhttp://tinyurl.com/lf7qqyk Quote: §97.315 Certification of external RF power amplifiers. (a) Any external RF power amplifier (see §2.815 of the FCC Rules) manufactured or imported for use at an amateur radio station must be certificated for use in the amateur service in accordance with subpart J of part 2 of the FCC Rules. No amplifier capable of operation below 144 MHz may be constructed or modified by a non-amateur service licensee without a grant of certification from the FCC. (b) The requirement of paragraph (a) does not apply if one or more of the following conditions are met: (1) The amplifier is constructed or modified by an amateur radio operator for use at an amateur station. (2) The amplifier was manufactured before April 28, 1978, and has been issued a marketing waiver by the FCC, or the amplifier was purchased before April 28, 1978, by an amateur radio operator for use at that operator's station. (3) The amplifier is sold to an amateur radio operator or to a dealer, the amplifier is purchased in used condition by a dealer, or the amplifier is sold to an amateur radio operator for use at that operator's station. (c) Any external RF power amplifier appearing in the Commission's database as certificated for use in the amateur service may be marketed for use in the amateur service. [71 FR 66465, Nov. 15, 2006] __ Note the differences between the above text and the text below from a previous message. - Jim, KL7CC On 1/7/2014 11:43 PM, Edward R Cole wrote: This is spin off of the JARD certification thread. Regarding FCC type acceptance: CFR-47: 97.315 As a general disclaimer FCC regs are written legalese language which is almost impossible to completely translate to common language and logic. 97.315, b) Any external RF power amplifier or external RF amplifier kit...must be type accepted... This requirement does not apply if one or more of the following conditions are met: 1) The amplifier is not capable of operations below 144 MHz... 2) The amplifier was manufactured before April 28, 1978... 3) The amplifier was: (i) Constructed by the licensee, not from an amplifier kit, for use by the licensee... (ii) Modified by the licensee... 4) The amplifier was sold by an amateur operator to another amateur operator or to a dealer. 5) The amplifier is purchased in used condition by an equipment dealer from an amateur operator...and is further sold to another amateur operator... Disclaimer: This info was provided as general information does not construe providing legal advice by this writer. 73, Ed - KL7UW http://www.kl7uw.comhttp://www.kl7uw.com Kits made by KL7UW Dubus Mag business: mailto:dubus...@gmail.comdubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.netmailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.nethttp://www.qsl.net Please help support this email list: http://www.qsl.net/donate.htmlhttp://www.qsl.net/donate.html 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3/KPA500/KAT500 SWR problem UPDATE
As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Vedr: K3/KPA500/KAT500 SWR problem UPDATE
Hi Ray. The OCF antennas are know to cause RF in the shack, and RF in the shack quite often result in strange behaviour from the radio equipment. A choke balun may work, but a current balun with ferrite is far better. Try to install 10-12 ferrites snap-ons on you're feedline as close to the feed point as possible, and try not to run the feedline parallel to the antenna wires. Another alterntive may be to install a socalled line isolator like the MFJ-915 close to the feedpoint. http://www.mfjenterprises.com/Product.php?productid=MFJ-915 The line isolator is a 1:1 current balun with ferrite, so it esential the same as the ferrite snap-ons in my first suggestion. Best regards, Martin Storli LA8OKA Oslo, Norway ARCTICPEAK's Radio pages! http://www.arcticpeak.com/radio.htm Fra: Ray Coles raycole...@gmail.com Til: elecraft@mailman.qth.net Sendt: Onsdag, 8. januar 2014 11.57 Emne: [Elecraft] K3/KPA500/KAT500 SWR problem UPDATE As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
Ray, Very interesting stuff, thanks. As the user of an off-center fed doublet myself, I was initially very nervous of running more than my usual 100W. As it happened, I need not have worried, as I have never experienced the problems you describe with the arrival of the KPA/KAT500. The reason may well be the choking I use on the doublet, and I suspect that you are on the right track here. I took a belt and braces approach to this a year or so ago. I have a drop of about 20 feet of 300 ohm 'balanced' feeder whereupon a conversion to heavy duty coax is made via a choke balun based upon GM3SEK's work - using the recommended ferrites, combining three different chokes in series to cover the whole of the HF range. It's very heavy and physically quite large so I have it mounted in a box on a flat roof about 20 feet above the operating position. The coax (short run) goes down to the shack and through another 3 section choke balun on the back of the amplifier. GM3SEK's article is well worth a careful read. Miscellaneous bits of ferrite are likely to do nothing, and the combination of coaxial coils and ferrite in Ian's design works extremely well in my experience. An added bonus was that it also reduced my local noise floor considerably. http://www.ifwtech.co.uk/g3sek/in-prac/index.htm#1005 ...is all you need. In the UK you can get the ferrites from Farnell in a couple of days although they are quite expensive. Accept no imitations! 73 Stephen G4SJP On 8 January 2014 10:57, Ray Coles raycole...@gmail.com wrote: As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] JARD Technical Standard Certification Number for K3 or K3X
Hi. Interesting comment, from a country that restricts the import of non FCC certified Ham gear themselves. :) 73. Dave G0WBX. PS: The CE mark (for what it's worth) covers the entire European Economic Area, a huge potential userbase. (And getting huge'er too. But that's another issue.) - Original Message - Quote... And yes, I smell restraint of trade. Unquote. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
I don't believe it is an antenna or stray RF problem. I have memorized tuner settings for the entire 75 meter band at 20 kc steps. The K-Line is set up per instructions (although the manual supplied by Elecraft is a little thin). When I QSY, the KAT500 will click to a memory when I transmit (either by using TUNE on the K3 or PTT and start talking). That is what I expect. What happens next is not expected! While in QSO, the KAT500 will suddenly retune. Normally, this retune will be a click or two (seeking a known memory) and a light show on the KPA500 - followed by the tuner settling down and the QSO continues. This is random and quite disconcerting - sometimes happening several times during a single QSO. A great amount of effort has been expended in checking and rechecking the entire antenna system. I am using a normal dipole for 75 meters with proper feedlines/connectors. There were no problems noted (not that I expected any). When using the same antenna system on other rigs - there have been NO similar incidents to what the KAT500 does. Once the tuning or tune memory is selected - there is no further tuner activity during a QSO. As it should be. Having learned how to do a trace report of the KAT500's tuning activity, I am able to see what the tuner is doing when this happens. In simple terms, it gets lost mid-QSO and the tuner activity noted is an attempt to retune to the frequency it is sensing that frequency will not be what your VFO is showing. When it settles back down, it will once again be tuned to your current XMIT frequency. For some reason, the KAT500 senses an incorrect XMIT frequency during the QSO. I have been informed that a solution is being worked on by Elecraft. Bill W2BLC K-Line(?) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
If I may, I would like to weigh jn here wjth what I have been using. I put up an OCF of 137ft approximately (memory issue) with the feed point up about 37ft. I am set at 80/20 offset and I am using the dual core balun from Balun Designs (usual denials...yada yada yada) and I have very few issues with rf feedback and the k-line has behaved well. There are issues with interferance from time to time on the portable TV inside the motorhome so recently I added some snap on ferrite beads where I thought they wouod work and this seems to have largely cleaned the station up. When connecting to ann80m dipole, all the rf issues disappear. The OCF seems to work better on all bands over the 80m dipole although this is not a scientific way to do this, however, the OCF is definately quieter on all bands and I am happy with it. 73 Gary On 08/01/2014 10:31 PM, Stephen Prior eastbrantw...@gmail.com wrote: Ray, Very interesting stuff, thanks. As the user of an off-center fed doublet myself, I was initially very nervous of running more than my usual 100W. As it happened, I need not have worried, as I have never experienced the problems you describe with the arrival of the KPA/KAT500. The reason may well be the choking I use on the doublet, and I suspect that you are on the right track here. I took a belt and braces approach to this a year or so ago. I have a drop of about 20 feet of 300 ohm 'balanced' feeder whereupon a conversion to heavy duty coax is made via a choke balun based upon GM3SEK's work - using the recommended ferrites, combining three different chokes in series to cover the whole of the HF range. It's very heavy and physically quite large so I have it mounted in a box on a flat roof about 20 feet above the operating position. The coax (short run) goes down to the shack and through another 3 section choke balun on the back of the amplifier. GM3SEK's article is well worth a careful read. Miscellaneous bits of ferrite are likely to do nothing, and the combination of coaxial coils and ferrite in Ian's design works extremely well in my experience. An added bonus was that it also reduced my local noise floor considerably. http://www.ifwtech.co.uk/g3sek/in-prac/index.htm#1005 ...is all you need. In the UK you can get the ferrites from Farnell in a couple of days although they are quite expensive. Accept no imitations! 73 Stephen G4SJP On 8 January 2014 10:57, Ray Coles raycole...@gmail.com wrote: As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FS Elecraft KX1
It's time to let go my Elecraft KX1 4 bands (S/N:2284) It has the following options installed: KXB3080 (80,30 Meters); Internal tuner (KXAT1); Morse Key KXPD1 paddle include. It was build by me in 2012, it's aligned and in fully working condition with minor use marks. I am asking 350 EUR plus shipping. Manuals and power supply cord is included. All inquiries off list please. 73 Pedro _..._ CT7AEZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KXPA100 Shipping Status Update
I was wondering the same thing up until yesterday. I'm a nobody, just a customer, not a field tester or manual writer. If it's any help, I placed my kit order about 30min after pre-orders started. I received my order confirmation e-mail last night and it should be shipping in the next couple of days. 73, Tighe On 1/8/2014 2:01 AM, Kevin Luxford wrote: Hi Wayne and Eric, The KPA100 shipping status appears not to have been updated since around mid November 2013. What is the current status, please? __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and NavSync CW12-TIM GPS Module
This is an inquiry I sent to Elecraft, along with their response: I’ve been considering adding the K3XREF to my K3. Can you tell me if the device listed in this link is a suitable 10MHz source? (Re: Navsync CW12-TIM GPS Timing Module. Price and technical details at the link:) http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=41718 Thanks, Jon / KF5TFJ = Jon, We have not tested that unit with the K3XREF. Looking at the specs, it's uses a square wave (most use a sign) and the output is a little higher output then 0dBM which most units use. I would recommended asking on our Elecraft reflector if anyone has used and tested it with the K3. Regards Howard K6IA = So, has anyone used the CW12-TIM with K3EXREF? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] JARD Technical Standard Certification Number for K3 orK3X
Thank you for follow-up comments. In case of minor change, the firmware change needs no recertification. A great improvement in transmission requires the recertification. For example, KX-3 became allowed to transmit FM and AM after the first lot. Equipment with ESSB mode over 3 kHz width (=Japanese limit) may not be accepted by JARD. Jun, JI1TLL From: wun...@wunderwood.org Date: Tue, 7 Jan 2014 20:14:32 -0800 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] JARD Technical Standard Certification Number for K3 orK3X One Japanese amateur had the opinion that firmware upgrades would require recertification. Perhaps that is true, but it also might be just as accurate as my opinion about what the FCC would do. If I were a betting man, I would not bet on my opinion about the FCC. Basically, let's not jump to the conclusion that the Japanese are trying to exclude US radios. Just like the FCC, they try to keep poor-quality transmitters off the air in their country. That is a good thing. wunder K6WRU On Jan 7, 2014, at 6:44 PM, Bill Frantz fra...@pwpconsult.com wrote: But Elecraft doesn't have to get a new type approval from the FCC every time they change the firmware. The post I quoted (included below) indicates that the Japanese manufacturers need to get approval from JARD whenever they want to change the firmware. Having the expense of jumping thru a bureaucratic hoop would certainly act as a disincentive. Cheers - Bill On 1/7/14 at 6:32 PM, wun...@wunderwood.org (Walter Underwood) wrote: Radios in the US need FCC approval, too. I don't think this is all that different. --wunder On Jan 7, 2014, at 6:28 PM, Bill Frantz fra...@pwpconsult.com wrote: This situation might contribute to the reasons we don't get continuous product improvement on our Japanese radios the way we do from Elecraft. Cheers - Bill, AE6JV On 1/7/14 at 6:53 AM, ji1...@jarl.com wrote: We know the firmware of KX-3 is currently revised even now. JARD can never accept such a moving spec. machine. --- Bill Frantz| gets() remains as a monument | Periwinkle (408)356-8506 | to C's continuing support of | 16345 Englewood Ave www.pwpconsult.com | buffer overruns. | Los Gatos, CA 95032 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Walter Underwood wun...@wunderwood.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Vedr: K3/KPA500/KAT500 SWR problem UPDATE
On 1/8/2014 3:24 AM, Martin Storli - LA8OKA wrote: The OCF antennas are know to cause RF in the shack, and RF in the shack quite often result in strange behaviour from the radio equipment. Correct. Because they are badly unbalanced, they also pick up lots of RX noise. A choke balun may work, but a current balun with ferrite is far better. A ferrite choke is far more effective at solving both the noise and the RF in the shack. BUT off-center fed antennas, because they are badly unbalanced, establish very high common mode voltages across the choke. As a result, there is a high mortality rate with chokes on off-center-fed antennas. In other words, a ferrite choke on an OCF antenna is quite likely to fry with power. OCF antennas are an old idea whose time has passed. They should be avoided, unless, of course, you happen to live in an alternate universe where RX noise and RF in the shack are not a problem. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3EXREF and NavSync CW12-TIM GPS Module
If Howard is correct on the output level, it's a little low for the K3EXREF's input. From the manual: Connect the external 10 MHz signal source to the K3 rear panel REF. connector. The 10 MHz source should have a signal level between +4 dBm and +16 dBm, nominal. For square wave sources, 2VDC to 3.3VDC peak is optimum. If the source is a 5V logic level, use a 50-ohm resistor in series with the input. Caution: To avoid damage to the K3EXREF, do not exceed these levels. Many K3EXREF users have Trimble Thunderbolt units. These work quite well and have an output level of about 12.5 dBm, sine wave. Thunderbolt units can be acquired surplus for $40 - $100 and are readily available on eBay, etc. I'd recommend you buy one of the later models, because these have an integrated 12V-input power supply. 73, matt W6NIA On Wed, 8 Jan 2014 10:00:46 -0600, you wrote: This is an inquiry I sent to Elecraft, along with their response: Ive been considering adding the K3XREF to my K3. Can you tell me if the device listed in this link is a suitable 10MHz source? (Re: Navsync CW12-TIM GPS Timing Module. Price and technical details at the link:) http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=41718 Thanks, Jon / KF5TFJ = Jon, We have not tested that unit with the K3XREF. Looking at the specs, it's uses a square wave (most use a sign) and the output is a little higher output then 0dBM which most units use. I would recommended asking on our Elecraft reflector if anyone has used and tested it with the K3. Regards Howard K6IA = So, has anyone used the CW12-TIM with K3EXREF? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and NavSync CW12-TIM GPS Module
Small correction below. On Wed, 08 Jan 2014 08:21:37 -0800, you wrote: If Howard is correct on the output level, it's a little low for the K3EXREF's input. From the manual: Quote Connect the external 10 MHz signal source to the K3 rear panel REF. connector. The 10 MHz source should have a signal level between +4 dBm and +16 dBm, nominal. For square wave sources, 2VDC to 3.3VDC peak is optimum. If the source is a 5V logic level, use a 50-ohm resistor in series with the input. Caution: To avoid damage to the K3EXREF, do not exceed these levels. Unquote This paragraph is not in the K3EXREF manual; it's just my comment. -mz Many K3EXREF users have Trimble Thunderbolt units. These work quite well and have an output level of about 12.5 dBm, sine wave. Thunderbolt units can be acquired surplus for $40 - $100 and are readily available on eBay, etc. I'd recommend you buy one of the later models, because these have an integrated 12V-input power supply. 73, matt W6NIA On Wed, 8 Jan 2014 10:00:46 -0600, you wrote: This is an inquiry I sent to Elecraft, along with their response: Ive been considering adding the K3XREF to my K3. Can you tell me if the device listed in this link is a suitable 10MHz source? (Re: Navsync CW12-TIM GPS Timing Module. Price and technical details at the link:) http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=41718 Thanks, Jon / KF5TFJ = Jon, We have not tested that unit with the K3XREF. Looking at the specs, it's uses a square wave (most use a sign) and the output is a little higher output then 0dBM which most units use. I would recommended asking on our Elecraft reflector if anyone has used and tested it with the K3. Regards Howard K6IA = So, has anyone used the CW12-TIM with K3EXREF? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] For sale K3
For sale K3 S/N 6459. Includes: ATU Module, RX Ant., IF out and Xverter Interface, and 6kHz 8 Pole filter. Like new condition with latest updates. Original cost $2587.62. Sell for $2200 shipped to conus. Please reply to wb4...@earthlink.net Thanks, Don WB4DON __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and NavSync CW12-TIM GPS Module
I was one of the beta testers on the K3EXREF. I am using a surplus OCXO bought for about $45 on e-bay. Its output was a distorted sinewave (appears to have strong second harmonic). I removed the harmonic by running the 10-MHz thru a DEMI model 10-4 distribution amp that uses 10-MHz bandpass filters on each of the four outputs (which are 10 dBm). The K3EXREF runs very nicely with this. Refer to: http://www.kl7uw.com/K3EXREF.htm 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] CES2014 micro power supply
Hi All Just seen a smart idea at CES 2014, a micro power supply 65W wall plug style and dream one day to see a 12v/20A (240+W or so) wallplug switching PS eventually build-in my K3. Yeah I know filtering and harmonics could be an issue (there are good solutions this days) but when you have to travel a vacation style micro PS could save big $$ on flight. Still at home my 1st choice is a linear big and heavy PS to stay on the safe side. http://www.youtube.com/watch?v=eLQB67RqZsk vy 73 de VE3GNO Daniel __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 sub receiver problem
Greetings to the list. I seem to have a problem with the sub receiver in my K3. I think the problem is between my ears and I am at wits end. The sub receiver works fine on several bands (80 40 20) but does NOT seem to be working on 10 160 15. Haven't checked the WARC bands. I have checked antenna settings from band to band and have all set to 'main' and can notice no difference between the setup from band to band. Any help as to what I'm missing? I should mention that the VFO B works fine in split mode. Confused in frigid Ohio! HNY Dan W8CAR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] CES2014 micro power supply
Here's what I use for travel. Only thing I changed was the output plug to PowerPoles... http://www.gammaresearch.net/hps-1a.html 73 Jeff KB2M - Original Message - From: VE3GNO Daniel yo3...@yahoo.com To: Matt Zilmer mzil...@roadrunner.com, Jon Noxon j...@noxon.cc, elecraft@mailman.qth.net Sent: Wed, 08 Jan 2014 18:08:35 - (UTC) Subject: [Elecraft] CES2014 micro power supply Hi All Just seen a smart idea at CES 2014, a micro power supply 65W wall plug style and dream one day to see a 12v/20A (240+W or so) wallplug switching PS eventually build-in my K3. Yeah I know filtering and harmonics could be an issue (there are good solutions this days) but when you have to travel a vacation style micro PS could save big $$ on flight. Still at home my 1st choice is a linear big and heavy PS to stay on the safe side. http://www.youtube.com/watch?v=eLQB67RqZsk vy 73 de VE3GNO Daniel __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [KX1] Anybody build a KX1 for 15/20M?
Eric wrote: Has anybody tried to build a KX1 for 20 and 15m? Is it even possible? It's pretty close to being impossible. The heart of the KX1 is an AD9834 direct digital synthesis (DDS) chip. The maximum frequency that DDS chip must generate cleanly is the RF operating frequency plus the IF, so that's about 21.5 + 4.9 = 26.4 MHz, for 15m operation. To generate that, the DDS must be clocked at least three times that frequency...or 79.2 MHz. The DDS in the KX1 is clocked at 50 MHz by crystal oscillator Z2. If you did change the clock chip Z2 to 80 MHz (assuming you could locate such a replacement), you'd still have a problem...the AD9834 **maximum** clock rating is 75 MHz. If somehow you overcame these fundamental DDS limitations, then you'd need to tackle the required firmware modifications in the KX1 MCU, a PIC16F876A micro-controller. After that...the job of revising the KX1 RF design will be needed, including any changes in the Q6 PA circuit to optimize PA performance at 21.1 MHz. So I say that modification of the KX1 for 15m operation is pretty close to impossible or, at least, certainly impractical. I can appreciate the desire for 15m operation. When band conditions allow (as they often do now), it's the very best QRP band. That's where the excellent K1 excels...its performance on 15m as part of its intrinsic design is wonderful, and its overall ham-band CW RF performance in every respect except frequency stability easily outstrips the KX1. I know...referring to the K1 doesn't help if all you have is a KX1. But the K1 doesn't get the good press on this list that it deserves...still, more than 13 years after it was introduced. 73, Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: CFR-97 Amateur Radio type acceptance
On 1/8/2014 12:43 AM, Edward R Cole wrote: This is spin off of the JARD certification thread. Regarding FCC type acceptance: CFR-47: 97.315 First of all, there no longer is such thing as type acceptance. See FCC Rules Part 2 Subpart J for current equipment authorization requirements. External power amplifiers must be certified. As a general disclaimer FCC regs are written legalese language which is almost impossible to completely translate to common language and logic. I have no problem with parsing and understanding FCC Rules and Regulations or the Communications Act and other applicable statutes, having spent my whole professional career (at the FCC and in the private sector) in reading, writing, interpreting, and enforcing them both as an engineer and as an attorney. No different skills from those necessary for designing and testing electrical/electronic circuitry. 97.315, b) Any external RF power amplifier or external RF amplifier kit...must be type accepted... This requirement does not apply if one or more of the following conditions are met: Totally obsolete language. The current language regarding this matter has been posted by others, and has been in effect since October 1998, with minor revision in December 2006 regarding 10/12 meter band coverage. 73 de K2ASP - Phil Kane ARRL Volunteer Counsel Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KX3-2548 station for SALE
Hi, I offer my KX3F-2548, KXAT3, KXBC3, KX3-PCT, XG50 kit, Radio Temp Comp calibrated and WSJT-9 ready. I also have a like new TenTec 405 amp included ONLY with radio. Offline for negotiations PLEASE. Bob w7wo b...@kalkwarf.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] The End is Here
Ken has one 700 Hz 8-pole K3 filter remaining, from what may well be the last production run. To purchase it, please visit http://www.unpcbs.com/ 73, Gary KI4GGX (webmaster) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
An OCF is an unbalanced antenna and it must have a choke to keep RF off the feed line into the shack. I use about ten turns of coax on a 4 inch PVC pipe right outside the wall where the feed comes into the house. It might be more or less, I am not at home to look. You can research it. Other choke baluns would help, if they present a high enough impedance. That seems to have cured RFI problems for me but I have occasionally felt like I needed more isolation. Many people have advised me to get rid of the OCF and go with something balanced but it suits my multi-band needs for now. I am pretty sure RF on the feed line would cause the tuning circuits in the KAT to act crazy. I'll leave that one for the Elecraft gurus to answer. Buck k4ia On 1/8/2014 5:57 AM, Ray Coles wrote: As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
I have used OCF antennas in the past and currently have on up that is fed with 600 ohm line and a balun for the coax transition to come in the house. It is a fine all band - 160-10 - antenna causing no RF problems in my shack. Although I rarely use this antenna, I hooked it up today and find the KAT500 misbehaves with this antenna the same as it does with a proper dipole. No joy! The OCF does, however, work well with my other auto-tune rigs. No hiccups noted. Bill W2BLC K-Line(?) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] CES2014 micro power supply
Here is what I use. 12.8 VDC 29A $45. http://www.lightobject.com/Electronics-C13.aspx Mel, K6KBE On Wednesday, January 8, 2014 11:14 AM, k...@comcast.net k...@comcast.net wrote: Here's what I use for travel. Only thing I changed was the output plug to PowerPoles... http://www.gammaresearch.net/hps-1a.html 73 Jeff KB2M - Original Message - From: VE3GNO Daniel yo3...@yahoo.com To: Matt Zilmer mzil...@roadrunner.com, Jon Noxon j...@noxon.cc, elecraft@mailman.qth.net Sent: Wed, 08 Jan 2014 18:08:35 - (UTC) Subject: [Elecraft] CES2014 micro power supply Hi All Just seen a smart idea at CES 2014, a micro power supply 65W wall plug style and dream one day to see a 12v/20A (240+W or so) wallplug switching PS eventually build-in my K3. Yeah I know filtering and harmonics could be an issue (there are good solutions this days) but when you have to travel a vacation style micro PS could save big $$ on flight. Still at home my 1st choice is a linear big and heavy PS to stay on the safe side. http://www.youtube.com/watch?v=eLQB67RqZsk vy 73 de VE3GNO Daniel __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] {OT} WW2DEM
For those with interest: The museum ship USS SLATER in Albany, NY is the very last of 563 destroyer escorts built during World War II that remains afloat in America. It's been restored to 1945 condition and represents a real piece of history. For years, the amateur station has limped along with 30 year old technology. Today, WW2DEM is on-the-air with its new All-American-made 100 watt fully optioned K2. Many thanks to Dale Putnam WC7S who built up the K2/100 plus options for only the cost of shipping, to Tony Baleno who built and donated a beautiful ZN-9 paddle and to Ken WB2ART who provided attractive bezel personalization. The ship is on the air most Saturdays (daytime) on 7062 CW; 7262 SSB or 14062 CW; 14262 SSB Only the ship's vintage maritime antennas are used. They consist of 70 and 80 foot wire verticals and a 100' long wire plus a 190' long wire that runs towards the fantail and then back up to the main mast. Matching is easily accomplished with the KAT2. There is a QRZ page entry for WW2DEM with QSL info, etc. 73, Stan WB2LQF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 sudden loss of power on high bands
Last week I was working DX quickly mostly on 10/12m going back and forth for needed bands. After several hours I noticed my gain bar on the amp was to the bottom of the scale zero power out. I reset the amp (Alpha 9500) and tried again same then checked the radio zero output but still showing the 31w drive for legal limit this was on 10m. The antenna I had been using was a Mosley Pro-67-C 3 all bands 10-40m SWR is not the problem checked every band. The radio has no PO on any bands 17 up to 10m, on 20 down to 160m everything works great on my antennas and have checked all going straight to a 2500w DL no change. Is there something I could have done while changing bands using a mouse click in my logger (Logic9) have confused the radio somehow. I have been fighting with for 5 days now. Like I said I was going fast working station after needed station to fill my DXCC on both bands. The amp is Auto Tune as is the Palstar HF-Auto tuner and most all band sections I was working had them pre stored. It is the radio and on the high bands I'm pulling my hair out HELP!! 73 Good DX, Fred N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] {OT} WW2DEM
My, how nice! I'd be honored to contribute my dust covers for the stations equipment. Ken has one of Tony's beautiful ZN9's that I can use as a manikin to make a cover for it if you'd like. What other equipment needs covers? Of course Ill need to know what you'd like in the way of fabric color, embriodery, connector openings, etc. 73! Rose - N7HKW elecraftcov...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] {OT} WW2DEM
Stan, If that K2/100 ever needs repair or servicing, I will make the same offer I do to blind hams - no labor charge, only parts and shipping. 73, Don W3FPR On 1/8/2014 6:04 PM, stan levandowski wrote: For those with interest: The museum ship USS SLATER in Albany, NY is the very last of 563 destroyer escorts built during World War II that remains afloat in America. It's been restored to 1945 condition and represents a real piece of history. For years, the amateur station has limped along with 30 year old technology. Today, WW2DEM is on-the-air with its new All-American-made 100 watt fully optioned K2. Many thanks to Dale Putnam WC7S who built up the K2/100 plus options for only the cost of shipping, to Tony Baleno who built and donated a beautiful ZN-9 paddle and to Ken WB2ART who provided attractive bezel personalization. The ship is on the air most Saturdays (daytime) on 7062 CW; 7262 SSB or 14062 CW; 14262 SSB Only the ship's vintage maritime antennas are used. They consist of 70 and 80 foot wire verticals and a 100' long wire plus a 190' long wire that runs towards the fantail and then back up to the main mast. Matching is easily accomplished with the KAT2. There is a QRZ page entry for WW2DEM with QSL info, etc. 73, Stan WB2LQF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA500/KAT500 SWR problem UPDATE
If you are working the bands 30m and below and have the room you can use inverted V antennas that all have the same feed point. The power will be distributed to the the antenna that is resonent at the transmit frequency. Until I was able to get room and funds for rotable antennas and longer wire antennas I used inverted V antennas fed from the same point. On Wed, 08 Jan 2014 15:45:48 -0500, you wrote: An OCF is an unbalanced antenna and it must have a choke to keep RF off the feed line into the shack. I use about ten turns of coax on a 4 inch PVC pipe right outside the wall where the feed comes into the house. It might be more or less, I am not at home to look. You can research it. Other choke baluns would help, if they present a high enough impedance. That seems to have cured RFI problems for me but I have occasionally felt like I needed more isolation. Many people have advised me to get rid of the OCF and go with something balanced but it suits my multi-band needs for now. I am pretty sure RF on the feed line would cause the tuning circuits in the KAT to act crazy. I'll leave that one for the Elecraft gurus to answer. Buck k4ia On 1/8/2014 5:57 AM, Ray Coles wrote: As the original poster under this heading I figured you might be interested to know what I have achieved so far, even though I am not yet ready to send the white smoke up the chimney. Briefly, my problem was that my KAT500 would go into uncommanded tunes during a QSO, usually on digital modes.The practical result was that I had to restrict TX power to less than 40Watts on most bands to avoid a burst from the Chicago Piano in the KAT. I had assumed an antenna/feeder problem and had changed every last connector, wire, balun and insulator in my system before asking for help from the Reflector Brains Trust. All of the other people who subsequently reported a similar problem made me feel a little better, and I also received a lot of diagnoses and practical advice which I have followed or will follow soon. One of the simplest was from Ron WB4OOA: Carry out a K3 Gain Calibration via the K3 Utility (I had to download the latest Utility version to make this work properly) then Install the KAT500 V1.42 Beta (Not quite as easy as it sounds). After this things were better, and my power setting on the K3 always appeared on the KPA500 wattmeter. I could now operate at higher power on some bands but had to stay below 40W on 40m. I had also adjusted the per band retune trigger SWRs upwards via the KAT500 Utility which also helped a little. I remain convinced though, that the basic trigger problem lies with the antenna system (an OCF multiband dipole) and I am continuing to work on this aspect using my analyser. Why it should have suddenly kicked off after many months of solid performance, and why changing everything hasn't yet cured it remains a mystery. My next steps are to try a choke balun on the feeder (parts now to hand) and to prune the antenna to get a better resonance on the bands of interest. Now if only this darn rain would stop! (I still think some tweaking of the KAT500 software might also help!) Ray Coles, C.Eng. M0XDL 10 Littlemoor Road, Weymouth DT3 6AA Tel: +44 (0) 1305 833699 Mob: 07831 516517 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Amateure Radio Operator N5GE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Wounded Warrior Ham
Greetings, I guess this question is more gear towards Don, but I was curious was the outcome of the wounded warrior ham was? Was he able to get on the air? And if so, is it possible to get his call? I'd love to work him one day! 73, Steve KS6PD KX3 #3604 USMC 1998-2004 Semper Fidelis __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Wounded Warrior Ham
Guess I should have included Sent from my iPhone. Please excuse errors and typos. Guess that's what I get for not proof reading... 73, Steve On Wednesday, January 8, 2014, Stephen Selberg wrote: Greetings, I guess this question is more gear towards Don, but I was curious was the outcome of the wounded warrior ham was? Was he able to get on the air? And if so, is it possible to get his call? I'd love to work him one day! 73, Steve KS6PD KX3 #3604 USMC 1998-2004 Semper Fidelis __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KXPA100 Shipping Status Update
I ordered a KPXA100 kit on June 17th with expectations, at that time, of an October delivery. I was beginning to think maybe it was October 2014. I love the Elecraft products and know that they want to get it right the first time. That seems to happen most of the time, or at least it's close to being right. However, the standard operating procedure seems to be to announce a product, generate a huge amount of interest, start taking orders and then expecting everyone to wait and wait some more. At any rate, many of you waiting for the kit will move up one notch as I cancelled my order today after finally receiving an invoice. After waiting and waiting, I found other ham radio things to spend the money on. I will not be purchasing a KXPA100 ever. To keep this on topic a bit, the Shipping Status and its updates ?? is a joke. For as well as it isn't maintained, no one should waste their time on it. 73, Dave N8AG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Wounded Warrior Ham
Steve and all, The wounded warrior is Sean Hughes KF5WMK. Yes, thanks to the contributions of several generous hams and Elecraft he was able to get on the air at the 100 watt level. He was working on his general class license the last I heard, but if you hear him on the air (even if only on 10 meters), give him a call. 73, Don W3FPR On 1/8/2014 10:59 PM, Stephen Selberg wrote: Greetings, I guess this question is more gear towards Don, but I was curious was the outcome of the wounded warrior ham was? Was he able to get on the air? And if so, is it possible to get his call? I'd love to work him one day! 73, Steve KS6PD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
