The screen dump provides the following info where the NF of the LNA itself is assumed to be 0.1420 dB and the dissipative loss of all DUTs are assumed to be 0.1084 dB. The average of NONE is 0.1623 dB which means that (0.1623 - 0.1420 + 0.1084) = 0.1287 dB has to be added to levels with cable combinations to get the corresponding NF values with negative sign. DUT Level NF NONE -0.1579 0.1420 DUT231 -0.2894 0.1607 DUT213 -0.2985 0.1698 DUT132 -0.2595 0.1308 DUT312 -0.2716 0.1429 None -0.1667 0.1420 |