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8563E Calibration

Question asked by Jean on Sep 8, 2011
Latest reply on Jul 20, 2014 by ateneycke
I'm calibrating a 8563E spectrum  and having a problem with the 10 MHz point in frequency response adjustment routine.
Any other point up to 26.5GHz is responding when the DAC are changed as called by the calibration routine.
But the 10 MHz point, the DAC can be changed but no effect on the frequency correction.
The software version is 990108.
Can anybody help?