What is that scale in the left side of the spectrum, is it dBm or something else?
73 de ismo
What is that scale in the left side of the spectrum, is it dBm or something else?
73 de ismo
My guess: dBFS (full scale). Whatever your RX is, 0 dBFS is ADC just saturating so you want to keep well clear of that. In general, dBm scale for QO100 is rather meaningless, as there are too many variables which influence it.