User`s guide

7-49

Operating Concepts

Measurement Calibration

In this case, omitting isolation is better than measuring the isolation standards without

increasing the averaging factor.

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

(reverse)

• Isolation, E

and E

• Source Match, E

and E

• Load Match, E

and E

• Transmission Tracking, E

and E

• Reﬂection Tracking, E

and 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.