The screen dump provides the following info where the NF of the LNA itself is assumed to be 0.2525 dB and the dissipative loss of all DUTs are assumed to be 0.1084 dB. The average of NONE is 0.2807 dB which means that (0.2807 - 0.2525 + 0.1084) = 0.1366 dB has to be added to levels with cable combinations to get the corresponding NF values with negative sign. DUT Level NF NONE -0.2783 0.2525 DUT231 -0.4690 0.3324 DUT213 -0.4347 0.2981 DUT132 -0.3709 0.2343 DUT312 -0.3440 0.2074 None -0.2831 0.2525 |