Right here Christophe: http://www.elecraft.com/manual/K2%20VCO%20sheild%20mod%20rev%20E.pdf
73, Ron AC7AC -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Christophe F8ACF-56 Sent: Monday, October 22, 2012 12:26 PM To: Cal; d...@w3fpr.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2: Modulation on CW signal hello list, what it is VCOSHLDKT, is there a direct link on the site Elecraft? thank you again for the information, it must learn. K2 # 7369 73 , Christophe F8ACF-56 ________________________________ De : Cal <cdjone...@yahoo.com> À : "d...@w3fpr.com" <d...@w3fpr.com> Cc : "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Envoyé le : Lundi 22 octobre 2012 19h19 Objet : Re: [Elecraft] K2: Modulation on CW signal The radio was sitting by 50 amp astron power supply which was on. Moved radio up to bedroom this morning w/ dummy load, powered by an optima blue top deep cycle battery. Same results. Could tune in to CW signal using yaesu radio in basement. Ordered the optional VCOSHLDKT today anyway since the K2 will end up down by the power supply. On Oct 22, 2012, at 7:23 AM, Don Wilhelm <w3...@embarqmail.com> wrote: > Calvin, > > Do you have anything with a transformer within 2 feet of the K2? If so, isolate the K2 by moving it away from everything and see if the ripple goes away. > > If the problem disappears with the isolation, you can install the optional VCOSHLDKT which shields the VFO inductor. > > 73, > Don W3FPR > > On 10/21/2012 11:04 PM, Calvin Jones wrote: >> Hello, First time posting to the list. >> >> Completed K2 #7239 today. Made a contact with a station on cw, 10 watts, 7.1065 mhz. He reported back that my CW signal had a very heavy ripple on the signal. >> >> I connected the output to a Oscilloscope and was able to see a ripple on the waveform when keying a solid carrier at a few watts. Also listened to my signal on another receiver and could hear a very bad modulated CW tone. >> >> This is a barebones K2 with no options installed at this point. Every measurement in the testing was all within specs and the alignment of the radio had no problems. Power output on all bands was OK. >> >> Thanks for any help in correcting this problem. >> ______________________________________________________________ >> 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
