Don, Julian, thank you for your replies! I forgot to mention - RTTY mode is activated and selected, SSBCr is 1:1. SSBA is 3.
The real IMD value may be far from what DigiPan tells me, but I see a very well known picture - two solid lines on the waterfall for two main tones and several minors for intermodulation products when sending idle. I was not sure if the distortion happens in FT840 or PC on receiver side, but with an antenna I can see strong but clean signals on the air. I also used my SoftRock and recorded the PSK sound - same distorted picture. Can it be something very stupid, like one dead transistor (Q7 or Q8) in the PA? -- View this message in context: http://n2.nabble.com/poor-IMD-on-barefoot-K2-even-at-low-power-tp3598729p3605302.html Sent from the [K2] mailing list archive at Nabble.com. ______________________________________________________________ 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
