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"Unleveled, Source1, out 2" for NF if Power of port2 is larger than -10dBm

Question asked by deq on Mar 12, 2019
Latest reply on Mar 14, 2019 by deq

PNA firmware A10.65.01, During and after NF Cal process (Scalar Method, Noise Receiver, Power Meter for Rx Characterization), if Port 2 power > -10dBm, "Unleveled, Source1, out 2" warning message pops-up , If increasing Port 2 power > -5dBm, extra "Warning: Receiver R2 overload" pops-up no matter Port 2 Receiver Attenuator sets. This happens only for NF measurement.

 

PNA state and cal set data file is attached.

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