User`s guide

Chapter 4 171
Calibration
User-characterized ECal
4. Calibration
User-characterized ECal
The E5070B/E5071B allows you to execute ECal calibration with user-defined
characteristics instead of the ECal characteristics defined as the factory default. This
feature is called User-characterized ECal, and it is used to execute ECal calibration when
an adapter is connected to the ECal module.
Before executing the User-characterized ECal, you have to measure data, such as
characteristics when the adapter is connected to the ECal module, and store them to the
built-in flash memory of the ECal module as the user characteristics.
Use the following VBA macro to acquire user characteristics and store them to the ECal
module’s built-in memory.
NOTE This function is available with firmware version 3.50 or higher.
NOTE Never delete this VBA macro, since even system recovery cannot restore it.
Precautions to take in using VBA macros
o Never connect/disconnect the USB cable.
Never connect/disconnect the USB cable between the ECal module and the
E5070B/E5071B while executing the VBA macro.
CAUTION In particular, the above precaution must always be observed while the VBA macro is
storing data to the ECal module's built-in flash memory; disconnecting the USB cable
at this time may damage the ECal module.
o Back up the flash memory contents.
The VBA macro provides a feature to back up the contents of the ECal module's
built-in flash memory. Before storing user characteristics to the ECal module, be sure
to use this feature to back up the flash memory’s current contents.
Storage folder VBA macro name (project name)
D:\Agilent EcalCharacterization.vba