Other topics about Performing Calibration
The E5071C has the following calibration coefficients for full N-port calibration: Er, Es, Ed (reflection), Et (transmission), and Ex (isolation).The partial overwrite function is used to measure some of these calibration coefficients after completion of the initial calibration and then to overwrite them.
The conditions under which the calibration coefficients can be calculated by the partial overwrite are as follows:
Calibration is completed once and valid (status other than C? or C!)
One or more measurements for re-calculation are performed.
The isolation calibration coefficient, Ex, cannot be returned to the initial value, 0, once it is calculated.
If calculation of the calibration coefficients is attempted without the measurements required to execute the partial overwrite, an error message (20: Additional Standard Needed) is displayed.
To calculate the calibration coefficients using partial overwrite, use the following command:
:SENS{1-36}:CORR:COLL:PART:SAVE
Before you can calculate the calibration coefficients with the partial overwrite, you must select the appropriate calibration type in the same way used for normal calibration. If calculation of the calibration coefficients is attempted without selecting the calibration type, an error message (28: Invalid Calibration Method) is displayed.