Hi Markus, Looks impressive and encouraging... May be there are spurii from EFR visible at 14 kc (down-mixed/folded) and 9.9 kc (intermod DCF49/DCF39)? Laura Sent from my Watson-Watt-Phone
Laura, very well, you are a keen observer! Yes I'm aware of the 2nd order intermodulation, happening in the low current BCY58 preamp stages which are powered by a DC level present at the notebook's m