I think I have a receive problem. Just completed the last stage of the K2. I
have a 20M receiver that is pickin up ssb on 14.250 ish... nice and strong. The K2 hears nothing. I have a MFJ-207 and I set it to generate a 14mhz signal and the K2 can find that signal..but its sitting right next to the rig so I must be seriously atten. my RF somewhere. any ideas? all the xmitt tests work for 2, 5, and 10 wat output. my dummy load gets warm so I am putting out rf... all the buttons work.. keyer works..everything but no receive.. WB0OMR _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
We don't have enough information to tell you where to look, it will take a
bit of troubleshooting just to discover where to start. The first step is to see what part of the receiver is alive. Do you hear any noise at all with the AF and RF Gains turned up all the way? If so, there is something there, if not the troubleshooting gets more complicated, so stop and let us know so we can advise on test techniques for the audio section. If you do hear something with the gains all the way up, the easiest next step is to try the "Quick and Dirty Signal Tracing" that is available for download from the Builder's Resource page of the Elecraft website. Should you not find the failing stage following that document, you will have to resort to following the Receiver Signal Tracing shown in Appendix E of the manual. There is a strong oscillator schematic shown there and you should consider building it to aid in your signal tracing. You can build it easily on a perfboard or even solder the parts together with 'flying leads' - I built mine 'Ugly Construction' style on a small (3/4 inch x 1 1/4 inch) piece of unetched PC board - I used a screwdriver adjust trimmer for the output pot. 73, Don W3FPR > -----Original Message----- > > I think I have a receive problem. Just completed the last stage > of the K2. I > have a 20M receiver that is pickin up ssb on 14.250 ish... nice > and strong. The > K2 hears nothing. I have a MFJ-207 and I set it to generate a > 14mhz signal and > the K2 can find that signal..but its sitting right next to the > rig so I must be > seriously atten. my RF somewhere. any ideas? > > all the xmitt tests work for 2, 5, and 10 wat output. my dummy > load gets warm > so I am putting out rf... all the buttons work.. keyer > works..everything but no > receive.. > > WB0OMR > No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.441 / Virus Database: 268.18.1/691 - Release Date: 2/17/2007 5:06 PM _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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