Stan, Check the low pass filter components carefully. It is possible that it is letting harmonics through. Make certain that Q7 is working. Capacitor CA is one of the low pass filter components that must be in the circuit on transmit. Q7 effectively grounds one side of that capacitor on transmit.
73, Don W3FPR On 5/8/2012 11:16 AM, Stan Gibbs wrote: > Here is a shot of my KX1's 40m signal: > > http://elecraft.365791.n2.nabble.com/file/n7539479/KX1_40m.jpg > > Clearly, the signal is much cleaner than 20m. > > Here is another shot of the 20m signal at a 2 KHz span: > > http://elecraft.365791.n2.nabble.com/file/n7539479/KX1_20m.jpg > > Anybody have an idea for the possible source of this modulation? > ______________________________________________________________ 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
