Gerhard, There could be a problem, or there may be no problem at all. What is the audio source and level that you are driving into the mic jack? If it is not a pure sine wave or the level is too high, it will have harmonics or (if too high a level) can cause harmonics if the balanced modulator is being overdriven. Sorry, but there is just not enough information in your note to allow me to venture even a guess.
In any case, harmonics of the modulating audio are not any indication of frequency modulation - frequency modulation would cause a variation in the frequency of the carrier plus/minus the modulating frequency. 73, Don W3FPR > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Gerhard Schwanz > Sent: Friday, April 01, 2005 4:25 AM > To: elecraft@mailman.qth.net > Subject: [Elecraft] K2 SSB problem > > > Hi group! > > I have a little problem with SSB it seems. During the contest last weekend > someone told me I had "frequency modulation" on my signal. Not > knowing what > this should mean I at least thought I would check the signal when > bands are > quieter. I just did. And although the audio sounds ok there is maybe a > little problem. Sending a 1kHz audio signal the receiving station > could hear > the same signal at +1kHz and -1kHz with -20dB max. These signals should be > at least -40dB, correct? > > Question. How do I fix this? > > Thanks! > > > > Gerhard Schwanz > DH3FAW > mailto:[EMAIL PROTECTED] > http://www.gs-personal.de > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > 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 > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
