132 Chapter 4
Calibration
Full 3-Port and Full 4-Port Calibration using 2-Port ECal
Full 3-Port and Full 4-Port Calibration using 2-Port ECal
A VBA macro (ECal Assistant) is pre-installed in the E5070B/E5071B to carry out a full
3-port or a full 4-port calibration using the 2-port ECal.
NOTE ECal Assistant does not perform isolation calibration.
Operational procedure
Step 1. Connect the USB port of the ECal module to the USB port on the E5070B/E5071B with a
USB cable. The connection may be made while the E5070B/E5071B’s power is on.
Step 2. Press .
Step 3. Press Load Project.
Step 4. From the Open dialog box, select the VBA project file “D:\Agilent\ECalAssistant.VBA”
and press the
Open button.
Step 5. Press .
The dialog box shown in Figure 4-23 appears.
Figure 4-23 ECalAssistant (start) dialog box
Step 6. Press the Next button.
The dialog box shown in Figure 4-24 appears.
Figure 4-24 ECalAssistant (Port/Channel Selection) dialog box
Step 7. In the Select Ports area, click and select the 3-Port (for a full 3-port calibration) or the
4-Port (for a full 4-port calibration) radio button.
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