E5071C
220
The types of thru measurement you can omit are determined by the ports
you select. Some types of thru measurement cannot be omitted. The table
below shows the types of thru measurement that can be omitted.
Omissible Thru Type at Full 3-port Calibration
Ports used Types of thru measurement that can be omitted
Ports 1, 2, 3 2-3
Ports 1, 2, 4 2-4
Ports 1, 3, 4 1-4
Ports 2, 3, 4 2-4
For the simplified full 3-port calibration, (Optional) is displayed on the
softkey of the type of thru measurement that can be omitted. For example,
when the omissible thru measurement is 2-3, 2-3 (Optional) is displayed.
The display after the execution of the omissible thru measurement is the
same as that for a required thru measurement.
Omissible Thru Type at Full 4-port Calibration
Required thru
measurements
Types of thru measurement that can
be omitted
1-2, 1-3, 3-4 1-4, 2-3, 2-4
For the simplified full 4-port calibration, (Recommended) is displayed on
the softkey of the type of thru measurement that can be omitted. For
example, when the omissible thru measurement is 2-3, 2-3 (Recommended)
is displayed. The display after the execution of the omissible thru
measurement is the same as that for a required thru measurement, and
the display for the remaining omissible thru measurement is 2-3 (Optional).
For the simplified full 4-port calibration, up to three thru measurements
can be omitted, but it is recommended to perform two or more types of
calibration because omitting all of them results in poor accuracy.
Simplified 3/4-port TRL Calibration
In the simplified 3/4-port TRL calibration, because the calibration
coefficients are calculated while omitting part of the thru/line measurement
data and line/match measurement data, the effect of errors when acquiring
calibration data becomes larger than in the normal 3/4-port TRL
calibration. Therefore, you must give more attention to data measurement
for the simplified full 3/4-port calibration than for the ordinary 3/4-port
TRL calibration.
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