:CALibrate:FRAMe:TIMebase:USER:STARt

Starts a DCA-X mainframe user calibration. The following table lists the input clock signal requirements for the calibration waveform. The source of the calibration waveform must be a calibrated microwave or vector signal generator. Do not use a pattern generator or arbitrary waveform generator. When the calibration starts, the DCA-X automatically switches to oscilloscope mode.

Connect the signal to an DCA-X's electrical channel input and to the front-panel trigger input. Use the :CALibrate:FRAMe:TIMebase:USER:CHANnel command to specify the input channel. After performing the calibration, you can export the calibration data to an xml file using the :CALibrate:FRAMe:TIMebase:USER:EXPort command. The file can be imported back into the DCA-X.

Clock Signal Requirements

DCA-X	Frequency	Amplitude
N1000A	26.000000 GHz	140 mVpp to 980 mVpp
86100D	10.000000 GHz	100 mVpp to 700 mVpp