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222 Chapter 5
Language Reference
CALibration Subsystem
Remarks: A valid service password needs to be entered prior to
sending the command.
Front Panel
Access: Enter service password and press
System, Diagnostics
Adjust the Level of the 321.4 MHz Alignment Signal
:CALibration:REF321
:CALibration:REF321?
Calculate the curve coefficients for setting the level of the 321.4 MHz
alignment signal.
Remarks: A valid service password needs to be entered prior to
sending the command.
Front Panel
Access:
System, Diagnostics
50 MHz Reference Alignment Signal
External Signal Power for Internal 50 MHz Amplitude
Reference Alignment
:CALibration:REF50:AMPL <power>
:CALibration:REF50:AMPL?
You must set this value equal to the actual amplitude of the external 50
MHz amplitude reference signal applied to the RF INPUT connector.
Process Process Step Description Command
Both Attach a 50 MHz signal to the RF input.
Automatic Does the entire procedure CAL:REF50[:DOIT]
Interactive Enter the interactive mode CAL:REF50:ENTer
Interactive Tell the instrument what the external
signal’s power is. (approx. -25 dBm)
CAL:REF50:AMPL
Interactive Proceed with the adjustment phase. CAL:REF50:ANOW
Interactive Exit from the interactive mode. CAL:REF50:EXIT
Query Return the last alignment value of the
absolute level of the 50 MHz cal signal.
CAL:REF50:LAST:ALEVel?
Query Return the last alignment value of the
ALC DAC.
CAL:REF50:LAST:ALCDac?