User`s guide

Chapter 3 3-7
GPIB Commands and Their Measurements
Specifications
System Performance Summary
Equipment Required
Typical Measurement Uncertainty
The following graphs show the typical measurement uncertainty of a
three-port device after full two-port error calibration. The curves utilize
anRSSmodelforthecontributionofresidualsystematicerrors,dynamic
accuracy, and switch repeatability. The isolation values on the curves
represent the isolation that the device presents to the uncorrected port
outside the measurement path.
Figure 3-1 shows the S
21
transmission coefficient (dB) for a three-port
device when the third port is terminated in the inactive port over a
300 kHz to 6 GHz frequency range.
Figure 3-1 S21 Measurement Uncertainty Characteristic Curves
(Corrected, Typical)
Calibration Kit 85032B/E
Port Cables 11857D