Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.8 Spurious Emissions Measurement
:POW:PADJ?
Notes The value on the control is displayed to 0.1MHz resolution
Dependencies
–
Does not appear in CXA-m
–
Does not appear in VXT Models M9410A/11A/15A/16A
–
Does not appear in M9410E/11E/15E/16E
–
Grayed-out if microwave preselector is off
–
Grayed-out if entirely in Band 0, that is, if Stop Freq is lower than about 3.6 GHz
–
Grayed-out if entirely above 50GHz, that is, if Start Freq is higher than 50GHz
–
Blank in models that do not include a preselector, such as Option503. If the command is sent in
these instruments, it is accepted without error, and the query always returns 0
–
Grayed-out in the Spectrogram View
Preset 0MHz
State Saved The Preselector Adjust value set by "Presel Center" on page 1978, or by manually adjusting
Preselector Adjust
Not saved in instrument state, and does not survive a Preset or power cycle
Min/Max –/+500MHz
Backwards
Compatibility SCPI
[:SENSe]:POWer[:RF]:MW:PADJust
[:SENSe]:POWer[:RF]:MMW:PADJust
Backwards Compatibility Command
Notes The command has no effect, and the query always returns MWAVe
Backwards
Compatibility
SCPI
[:SENSe]:POWer[:RF]:PADJust:PRESelector MWAVe | MMWave | EXTernal
[:SENSe]:POWer[:RF]:PADJust:PRESelector?
Internal Preamp
Accesses a menu of controls for the internal preamps. Turning on the preamp gives
a better noise figure, but a poorer inter-modulation distortion (TOI) to noise floor
dynamic range. You can optimize this setting for your measurement.
The instrument takes the preamp gain into account as it sweeps. If you sweep
outside of the range of the preamp, the instrument will also account for that. The
displayed result always reflects the correct gain.
For some measurements, when the preamp is on and any part of the displayed
frequency range is below the lowest frequency for which the preamp has
specifications, a warning condition message appears in the status line. For example,
Spectrum Analyzer Mode User's &Programmer's Reference 1389

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)