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SCPI Commands for the VX4101A
VX4101A MultiPaq Instrument User Manual
3–17
NOTE. The reference oscillator should only be changed when the instrument is
not active. Switching the reference oscillator source during measurements will
result in indeterminate instrument operation.
SOURce:ROSCillator:VALue <frequency>
This command provides a temporary override of the calibrated oscillator
frequency with a frequency supplied that you enter. The device uses the
frequency to provide a calibrated value for a USER oscillator without running a
calibration cycle or to simulate an ideal oscillator. This value is lost whenever
the oscillator source is switched. Choosing DEFault as the value re-initializes the
oscillator frequency to the calibrated value, if available. If the calibrated value is
not available, 10 MHz is used.
SOURce:ROSCillator [:SOURce?]
INTernal|CLOCk10|USER1|USER2|USER2|USER3|USER4|
USER5|USER6|USER7|USER8|USER9|USER10
SOURce:ROSCillator:VALue?
Returns the calibrated value of the internal frequency source.
SOURce:ROSCillator:VALue?
Command Response
*RST
SOUR:ROSC? INTernal
SOUR:ROSC:VAL? 9.99999999999999E+06
SOUR:ROSC CLOC
SOUR:ROSC? CLOCk10
SOUR:ROSC:VAL? 1.00000010000000E+07
SOUR:ROSC USER2
SOUR:ROSC? USER2
SYST:ERR? –300 “Device specific error; VX4101A; Reference Oscillator
Not Calibrated”
SOUR:ROSC:VAL? 1.00000000000000E+07
Query Response
Examples