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SCPI Programming Reference
CALCulate:SCALe:REFerence:AUTO {ON|1|OFF|0}
CALCulate:SCALe:REFerence:AUTO?
Enables or disables automatic reference selection for the dB scaling functions.
Parameter
{ON|1|OFF|0}. Default: ON.
Enable 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 auto-
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matic reference selection is disabled:
For the dB scaling function, the first measurement is converted to dBm, and
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late:SCALe:DB:REFerence
For the PCT scaling function,
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urement.
OFF:
CALCulate:SCALe:DB:REFerence
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late:SCALe:REFerence
The instrument enables automatic reference selection when the scaling function is enabled
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late:SCALe:STATe
ON).
This parameter is set to its default value after a Factory Reset (*RST), an Instrument Preset
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(SYSTem:PRESet), or a change in measurement function.
You must execute CALCulate:SCALe:FUNCtion before executing CALCulate:SCALe[:STATe], oth-
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erwise an incompatibility error will be generated.
Scaling is set to OFF when you change measurement functions (for example, changing from DCV to
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ACV). You must re-enable scaling after changing measurement functions.
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is set to the result.
CALCulate:SCALe:REFerence
specifies the reference for DB scaling,
specifies the reference for PCT scaling.
Typical Return
0 (OFF) or 1 (ON)
is set to the first meas-
Keysight Truevolt Series Operating and Service Guide
CALCu-
CALCu-
(CALCu-
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