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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 25, 2019 by Dr_joel

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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