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Tuner calibration using a R&S ZNB, The vna correction is turned off

June 12, 2024

Tuner Calibration

Symptoms / Solutions:

Starting the tuner calibration using an R&S ZNB, the VNA correction is turned off and not used. The tuner continues to calibrate with the VNA in uncorrected.

This problem can be corrected by upgrading the R&S ZNB firmware to 2.80 or newer. Once updating the firmware, FDCS should correctly setup the VNA to calibrate with correction on.

Keywords: Tuner calibration, VNA issues, uncorrected

Last date modified:  April 24, 2017

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