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458 Chapter5
One-Button Measurement Functions
Meas Setup (Spectrum Emissions Mask—SEM)
One-Button Measurement Functions
5.22.2 Meas Type
Displays a menu where you can select a measurement reference type, Total Pwr Ref or PSD
Ref
.
Key Path:
Meas Setup
Factory Preset: Total Pwr Ref
Remote Command:
[:SENSE]:SEMask:TYPE TPRef | PSDRef
[:SENSE]:SEMask:TYPE?
Example: SEM:TYPE TPRef or SEM:TYPE PSDRef
SEM:TYPE?
5.22.2.1 Total Pwr Ref
When
Total Pwr Ref is selected, the power in the carrier is used as the reference in computing
the relative power values for the offsets.
Key Path:
Meas Setup, Meas Type
Readback: Reads back “Total Pwr Ref” to the Meas Type key.
History: Updated with firmware revision A.03.00
5.22.2.2 PSD Ref
When
PSD Ref is selected, the mean power spectral density of the carrier is used in
computing the relative power spectral density values for the offsets.
Key Path:
Meas Setup, Meas Type
Readback: Reads back “PSD Ref” to the Meas Type key.
Factory Preset: On (Auto)
History: Updated with firmware revision A.03.00
5.22.3 Ref Channel
Accesses the menu of keys that enable you to change the reference channel settings.
Key Path:
Meas Setup