Igor, An intermittent problem of that nature is usually associated with a bad solder connection. Reflow the soldering (adding a little bit of flux from new solder) with a hot (400 degC) iron.
73, Don W3FPR On 4/8/2012 4:28 AM, Igor Sokolov wrote: > Just discovered that knocking RF board in the region of the K14 and K15 > relays makes the problem to appear or disappear. The offset does not depend > on the CW pitch setting and is close to 1 khz. > > __________________________________________________________ > My K2 developed a problem. In CW mode TX frequency is off the RX frequency > by about 1 kHz. The problem is intermittent. Sometimes it manifests itself, > sometimes it does not. > Can anybody give me a hint where to look? I was about to see if changing CW > pitch changes the offset but so far cannot make the problem to appear again. > So far there were no evidence that the problem is temperature dependant. > > 73, Igor UA9CDC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
