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Cal kit data error could occur when language setting is changed from English on the ENA.

(SUPPORTED MODELS IN BOLD: E5071C E5072A E5070B/71B E5070A/71A E5061A/62A E5061B E5063A E5091A E5092A)

Changing the language setting on the ENA is not supported officially as described in the following documents.

E5071C Windows Support Information

Please read "Local Language Setting" description.

E5071C Online Help Manual

Please read the following page.
Precautions -> Protecting ENA System

In this case, Keysight Technologies recommends changing the language setting back to the default (English).
Please follow the instructions below.
(1) Get back the Regional and Language Options setting to English.
(2) Reboot (Power Off and On) the ENA.
(3) Execute the "Restore CAL Kit" of the wrong Cal Kit.

The calibration kit definition data issue was found on the E5071C firmware rev. 8.12. It was found when user changed the Windows Regional and Language Options setting to French. Some of calibration kit definition data got broken. The same error occurred if the regional setting uses other decimal symbol than period (.) such as comma.
The issue was already fixed with the firmware rev. 9.10.

Related Links

Keysight ENA Series: Service & Support Home Page

Information regarding maintaining and updating your ENA network analyzer. The E5071C latest firmware can be downloaded from the E5071C Firmware Update

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