Agilent Technologies 8753ET User Manual page 418

Operating Concepts
Measurement Calibration
Figure 7-37 Isolation E
Thus there are two sets of error terms, forward and reverse, with each set consisting of six error terms, as
follows:
• Directivity, E (forward) and E
DF
• Isolation, E and E
XF XR
• Source Match, E and E
SF
• Load Match, E and E
LF
• Transmission Tracking, E
• Reflection Tracking, E
The analyzer's test set can measure both the forward and reverse characteristics of the test device without
you having to manually remove and physically reverse the device. A full two-port error model illustrated in
Figure 7-38. This illustration depicts how the analyzer effectively removes both the forward and reverse error
terms for transmission and reflection measurements.
7- 50
XF
(reverse)
DR
SR
LR
and E
TF TR
and E
RF RR