6- 73
Calibrating for Increased Measurement Accuracy
Adapter Removal Using ECal (ES Analyzers Only)
Remove the Adapter
When the two sets of error correction files have been created (now referred to as "calibration sets"), the A3
adapter may be removed.
1. Press to display the following menu:
2. Press to display and
.
also displays the internal (or external if internal not used) disk file directory.
NOTE In the following two steps, calibration data is recalled, not instrument states.
3. From the disk directory, choose the file associated with the port 1 error correction, then press
.
4. When this is complete, choose the file for the port 2 error correction and press
.
5. When complete, press .
6. Enter the value of adapter A3 electrical delay by pressing and entering the
value.
7. Select the appropriate key: or .
8. Press to complete the technique for calculating the new error coefficients
and overwrite the current active calibration set in use.
This process uses up an internal memory register. The calibration in this register is not the calibration
created by adapter removal, rather it is a "scratch" calibration. You may wish to delete the register, or
re-save the new calibration in this register as shown in the following step.
9. To save the results of the new calibration set, press
.
NOTE Adapter removal can leave a residual state in internal memory. This is not a valid instrument
state and should be deleted.
10. Connect the DUT to the network analyzer as shown in Figure 6-30 to perform calibrated measurements.
(This Help softkey provides a quick reference guide to using
the adapter removal technique.)
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