4-5 :FETCh Subsystem Chapter 4 — Spectrum Analyzer Commands
4-28 PN: 10580-00341 Rev. C MS2720T PM
4-5 :FETCh Subsystem
This set of commands returns the most recent measurement data of the active measurement.
They will not switch to another measurement.
To make a new measurement, use the INITiate command. To get new measurement data, use
the READ or MEASure query commands.
:FETCh:ACPower?
Title: Fetch Adjacent Channel Power Ratio
Description: Returns the most recent adjacent channel power ratio measurement
results. If the instrument is sweeping, it will not return until the sweep
is complete. If the instrument is not sweeping and the current data is
not valid it will return error -230. This could occur if there was a *RST
immediately before the :FETCh? or if a measurement parameter was
changed without an :INITiate.
Data is returned as 3 comma-separated values: main channel power,
lower adjacent channel power, upper adjacent channel power.
Default Unit: Current amplitude units
:FETCh:CHPower:CHPower?
Title: Fetch Channel Power
Description: Returns the most recent channel power measurement result. It returns
only the channel power, not the channel power density. Use
:FETCh:CHPower? to get both channel power and channel power
density.
Default Unit: Current amplitude units
Related Command: :FETCh:CHPower?
:FETCh:CHPower:DENSity?
:FETCh:CHPower:DENSity?
Title: Fetch Channel Power Density
Description: Returns the most recent channel power density measurement result. It
returns only the channel power density, not the channel power. Use
:FETCh:CHPower? to get both channel power and channel power
density. If the instrument is sweeping, it will not return until the sweep
is complete. If the instrument is not sweeping and the current data is
not valid it will return error -230. This could occur if there was a *RST
immediately before the :FETCh? or if a measurement parameter was
changed without an :INITiate.
Default Unit: Current amplitude units
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