Perform The Calibration - Agilent Technologies 8719ES User Manual

Calibrating for Increased Measurement Accuracy
Calibrating Using Electronic Calibration (ECal)

Perform the Calibration

1. Press
ECal MENU
Cal
When ECal is first selected (or when you select module A or module B), there is a small
initial delay so that the network analyzer can detect and download the calibration
information from the internal memory of the ECal module.
2. Press
MODULE A b
NOTE If you are calibrating with two modules, the overlapping frequency span will
be determined by the second module. Therefore, if you want to use the
calibration data of Module A in the overlapping frequency span, calibrate
using Module B first, and then calibrate using Module A.
3. Press the ECal calibration selection.
• The calibration choices for ES models are:
—
S11 1-PORT
of one-port devices or properly terminated two-port devices, at port 1 of an
S-parameter test set.
—
S22 1-PORT
of one-port devices or properly terminated two-port devices, at port 2 of an
S-parameter test set.
—
FULL 2-PORT
S-parameters of a two-port device. This is the most accurate calibration for
measurements of two-port devices.
—
S11/S21 ENH. RESP.
(forward direction). Enhanced response generates a 1-port cal for S11 and an
improved calibration over the response cal for S21.
—
S22/S12 ENH. RESP.
(reverse direction). Enhanced response generates a 1-port cal for S22 and an
improved calibration over the response cal for S12.
• The calibration choices for ET models are:
—
REFLECTION 1-PORT
—
TRANS/REFL ENH. RESP.
(same as S11) enhanced response calibration (forward direction). Enhanced
response generates a 1-port cal for reflection and an improved calibration over the
response cal for transmission.
Once the ECal calibration selection is made, the network analyzer performs the
calibration.
4. If you selected the manual thru calibration option, when the prompt is displayed,
remove the ECal module from the setup and connect the manual thru (the two test
ports connected together) as shown in
6-62
.
so that A is selected.
performs a measurement calibration for reflection-only. Measures
performs a measurement calibration for reflection-only. Measures
performs a complete calibration for measurement of all four
performs an S11 and S21 enhanced response calibration
performs an S22 and S12 enhanced response calibration
performs a reflection 1-port calibration.
performs a transmission (same as S21) and reflection
Figure 6-22.