
98 Chapter 4
Calibration
Measurement Errors and their Characteristics
Transmission tracking error (Et)
A transmission tracking error is caused by the difference in frequency response between
the test receiver of a response port and the reference receiver of a stimulus port in
transmission measurements. When a certain port is a stimulus port, a transmission tracking
error is defined for each of the other ports. Therefore, the number of transmission tracking
errors for the E5070B/E5071B is the total number of combinations of stimulus ports and
response ports.
Et21, Et31
*1
, and Et41
*2
*1.Options 313, 314, 413, and 414 only
*2.Options 413 and 414 only
Transmission tracking error when port 1 is a stimulus port
Et12, Et32
*1
, and Et42
*2
Transmission tracking error when port 2 is a stimulus port
Et13
*1
, Et23
*1
, and Et43
*2
Transmission tracking error when port 3 is a stimulus port
Et14
*2
, Et24
*2
, and Et34
*2
Transmission tracking error when port 4 is a stimulus port
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