Adjustments - Keysight N9923A Service Manual

Tests and Adjustments
Performance Tests and Adjustments

Adjustments

Frequency Accuracy
Locks to Ext Ref 10 MHz signal via DAC. Stores DAC setting to use when not in
External Reference mode.
Phase Lock Accelerator
This process creates factors for various phase lock capture speeds used during
measurements. No test equipment is required.
Error Terms
This adjustment process updates the correction information used by CalReady
(i.e. the Factory Cal). It uses an ECal to perform a one port cal on each port,
then completes a two port cal using the thru and loads.
Note: The Error Terms adjustment should be performed every twelve months to
preserve calibration accuracy of CalReady.
3-8 Keysight N9923A Service Guide