CALCulate:SCALe:REFerence:AUTO {OFF | ON} [, (@<ch_list>)]
CALCulate:SCALe:REFerence:AUTO? [, (@<ch_list>)]
Enables or disables automatic reference selection for the scaling functions.
Parameter Typical return
{OFF | ON}
Default: ON
0 (OFF) or 1 (ON)
Enables the DB function with automatic reference selection and use the first measurement as the reference
value:
CALC:SCAL:DBM:REF 50
CALC:SCAL:FUNC DB
CALC:SCAL:REF:AUTO ON
CALC:SCAL:STAT ON
READ?
– ON: the first measurement made is used as the reference for all subsequent measurements, and automatic ref-
erence selection is disabled:
– For the dB scaling function, the first measurement is converted to dBm, and
CALCulate:SCALe:DB:REFerence is set to the result.
– For the PCT scaling function, CALCulate:SCALe:REFerence is set to the first measurement.
– OFF: CALCulate:SCALe:DB:REFerence specifies the reference for DB scaling,
CALCulate:SCALe:REFerence specifies the reference for PCT scaling.
– The instrument enables automatic reference selection when the scaling function is enabled
(CALCulate:SCALe:STATe ON).
– This parameter is set to its default value after a Factory Reset (*RST), an Instrument Preset (SYSTem:PRESet),
or a change in measurement function.
– You must execute CALCulate:SCALe:FUNCtion before executing CALCulate:SCALe[:STATe],
otherwise an incompatibility error will be generated.
– Scaling is set to OFFwhen you change measurement functions (for example, changing from DCV to ACV).
You must re-enable scaling after changing measurement functions.
78
Keysight DAQ970A/DAQ973A Programming Guide
2 SCPI Programming
To Next Page
Loading...
Need help?
General
