Agilent Technologies 8753ES Option 011 Service Manual page 354

Error Terms
Full Two-Port Error-Correction Procedure
Transmission Tracking (E and E )
TF TR
Description Transmission tracking is the difference between the frequency response of
the reference path (including R input) and the transmission test path (including A or B
input) while measuring transmission. The response of the test port cables is included.
These terms are characterized by measuring the transmission (S21, S12) of the "through"
configuration during the error-correction procedure.
Significant System Components
• R signal path (if both E and E are bad)
TF TR
• A or B input paths
• "through" cable
Affected Measurements All transmission measurements are affected by transmission
tracking errors.
Figure 11-7 Typical E /E
TF TR
11-14 Chapter 11