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On Tue, Aug 4, 2020 at 06:39 AM, OneOfEleven wrote:

Not very good up at 2.7GHz but it's doing it.

To get an impression of the usability it is useful to look at the phase of an open S11 i.s.o the magnitude of the noise
Often at higher frequencies the magnitude is determined by various harmonic products created inside the SA612
As soon as the phase loses correlation while there still seems to be magnitude you know you are in trouble

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Erik, PD0EK