Initialize Flash Utility

This utility applies to the following models:

• All supported PNA models running the Factory Recommended Variant except for the N5290A/91A and N5230A/30C.

This utility should be used when the flash memory is suspected of having corrupted flash files which adversely affect the performance of the PNA.

A flash memory module is used on the test set motherboard in PNA models to store pertinent operational information of the PNA. Running this utility will put nominal information into the flash module which is expected to allow the PNA to perform reasonably.

The utility will erase the PNA's flash file system and structure the flash according to its model and hardware options thereby restoring it to a clean state so all hardware components are at nominal levels prior to performing calibrations.

When to Run This Utility

Common situations that can cause the flash file system to be corrupted and when this utility should be used are:

• Performing A/B upgrades along with additional upgraded hardware such as Option 029/E29 (noise figure measurements) and LFE options (low frequency extension).

• Frequency upgrades that sometimes cause calibration failures.

• Repeated calibrations when multiple hardware is replaced which corrupts the flash file system.

• Analyzers with extensive hardware replacements and subsequent calibrations that put the analyzer in a sub-optimal state.

Backup EEPROM

Since running this utility will erase and restore the calibration file system to default values, it is recommended to first perform a backup of the PNA's EEPROM using the tool called EEBackup.exe. The backup files will be saved to the following location depending on operating software installed on the PNA: