With Option 77, the Vector Network Analyzer enables measurements with four additional S‑parameters: the differential reflection coefficient (Sd1d1), the common mode reflection coefficient (Sc1c1), and the mixed mode reflection coefficients (Sc1d1 and Sd1c1). These S‑parameters can be applied to any trace with any graph type, in the same manner as the other standard S‑parameters.
1. Press the Measure function hard key.
2. Choose the desired active trace.
3. Press the S-parameter soft key and then choose the desired S‑parameter from the pop‑up list box.
4. Choose the desired Graph Type and Domain.
Note
A full 2‑Port calibration is required for balanced or differential S‑parameter measurements.
Markers, limits, and all other features that can be used with the standard S‑parameters also can be used with the balanced or differential S‑parameters.
Differential S‑Parameter Selection List Box (no soft key menu)
With Option 77, the S‑parameter submenu uses the selection list box instead of the standard soft keys for choosing the desired S‑parameter, even for non‑differential S‑parameters.
