Agilent Technologies E5070B, User Manual

Page: 232 / 769

226 Chapter 4
Calibration
Vector-Mixer Calibration
How to execute characterization of calibration mixer
1. Setting Stimulus Conditions
Set the stimulus conditions for the channel you want to calibrate. For the necessary steps,
refer to “Setting Stimulus Conditions” on page 70.
You must also set the external signal source in advance. For the necessary steps, refer to “2.
Setting External Signal Source” on page 316.
2. Running VBA Macro
NOTE
Full 2-port calibration is recommended for characterizing the calibration mixer with the IF
filter, although 1-port calibration is also available. This is because using full 2-port
calibration simplifies the evaluation procedures, which are described in “Overview of
vector-mixer calibration” on page 223. For detailed information on full 2-port calibration,
see “Full 2-Port Calibration” on page 118.
Load the VBA project and then run it.
Step 1. Press .
Step 2. Press
Load & Project
.
Step 3. Specify “D:\Agilent\MixerCharacterization.vba” for the file name in the Open dialog box
and then press the
Open
button.
Step 4. Press to run the macro (see Figure 4-67).
Figure 4-67 Vector Mixer Characterization Macro
3. Selecting Measurement Port
Select the 1-port calibration port (1 in Figure 4-67).
NOTE Select any port if full 2-port calibration is set.