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Hi Al,
would it be possible to extend the dynamic range from about 50dB to about 70dB by doing three passes in 10dB-steps (or configurable) of LNA amplification and set together the data?
I am analysing the TV-band; at 0dB the strong signals are well under clipping and the weak signals not visible in the noise floor, at around 10dB the strong signals are clipping and the weak ones just visible and at 20dB the medium ones clipping and the weak ones very good visible and additionally the amplified noise can be seen.
Therefore a three pass measurement would give all the information in one result curve.
Thanks, Martin.