Hard to tell, for what I know, there have been different production batches, each board was checked but may slightly behave differently from others. Current production should have solved relays issues that were mainly responsible for insufficient odd harmonics suppression. For older versions like mine, ver 3 a simple change with better relays (Axicom) resulted in a better harmonics suppression. As for TX purity it is not an IC7300. Speaking loud and very close to the mike results in splatters, TX imd was found being not too good. There is no ALC. My impression is that modulation is effective (the filter is narrow and if BFO is set far enough it sounds pretty dx) and I had received good modulation reports. In a nutshell if one can only listen to classical music will probably dislike it, and this is why I love it!
Il 02/dic/2018 09:03, "Simon" <
simonhk7@...> ha scritto:
May i ask what is the output spectrum purity, supression of harmonics etc., for ubitx multiband and the single 40m band bit40
73, ?Simon
