2008/11/13 Barry N1EU <[EMAIL PROTECTED]> > > > Alexander Ponomarenko-5 wrote: > > > > all these measurements, for all radios has been via PHONE-OUT. > > There is two-tone measurements, but you can see these IMD even with XG1 > > set to s9-level. > > Here is my K3 with s9-signal from XG1: > > - ATT On http://forum.cqham.ru/download.php?id=32030 > > - ATT/PRE Off http://forum.cqham.ru/download.php?id=32031 > > - PRE On (it's terrible) http://forum.cqham.ru/download.php?id=32032 > > > > Please take two consecutive spectrum readings with PRE On, AGC Off from the > headphone jack - take one with S9 signal from XG1 and take the second with > the XG1 generator turned off (i.e., with no signal in the passband). > Please > post these two spectra. > > I suspect many of the spikes in your spectrum reading are not related to > the > received signal. > > Thanks, > Barry N1EU > >
Barry, S9 with Pre On, AGC Off you can see in my previous message. Here is plot without XG1-tone-signal (here is from line-out, but via PHONES it's equal, yes, tomorrow you will see both plots for PHONES-out): http://forum.cqham.ru/download.php?id=31532 Guys, do you remember as we has built ours K2's? Do you remember the Spectrogram-soft? Try use it and you will see these plots. Alex de UR5LAM
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