MEASURING LOSSES BY INFLUENCE ON THE NOISE FIGURE.
(Jan 29 2013)
This page is a sub-page to LOSSES IN RELAYS, CABLES, ADAPTERS AND CONNECTORS.

The DUT

Four cables and combinations of them is the set of DUTs for which this page is an attempt to evaluate dissipative losses using the influence of these cables on the NF of a low noise amplfier that is optimized for a source impedance of 50 ohms.

DUT2 = 0.125 wl 50 ohm, RG223
DUT3 = 0.25 wl 50 ohm, RG223
DUT4 = 0.25 wl 50 ohm, RG223 

Device     Loss
           (dB)
DUT2      0.0591
DUT3      0.0279
DUT4      0.0588
Table 1 Losses as determined from NF degradation.