Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.7 Burst Power Measurement
Remote Command
:UNIT:POWer DBM | DBMV | DBMA | V | W | A | DBUV | DBUA | DBPW | DBUVM |
DBUAM | DBPT | DBG
:UNIT:POWer?
Example
:UNIT:POW dBmV
:UNIT:POW?
See also "Remote Interface Examples" on page 1245 below
Notes The Y axis unit has either logarithmic or linear characteristics. The set of units that is logarithmic
consists of dBm, dBmV, dBmA, dBmV, dBmA, dBmV/m, dBmA/m, dBpT, and dBG. The set of units that
are linear consists of V, W, and A. The chosen unit will determine how the reference level and all the
amplitude-related outputs like trace data, marker data, etc., read out
Dependencies Appears only in Spectrum Analyzer Mode
If an amplitude correction with a Transducer Unit other than None is applied and enabled:
–
The Transducer Unit selection is forced, and is the only Y Axis Unit available. The specific
Transducer Unit is shown in square brackets in the dropdown, and all other Y Axis Unit choices are
grayed-out
–
If you turn off that correction or set Apply Corrections to NO, the Y Axis Unit that existed before
the Transducer Unit was applied is restored
When Normalize is ON (in the Trace, Normalize menu), Y Axis Unit is grayed-out, and forced to dBm
Couplings The instrument retains the entered Y Axis Unit separately for both Log and Lin amplitude Display
Scales
Preset dBm for log scale, V for linear. The true ‘preset’ value is dBm, since at preset the Y Display Scale is set
to logarithmic
State Saved Saved in instrument state
Annotation The Y Axis Unit is shown after Ref Level value at the top of the graticule
Unit Example Notes
dBm :UNIT:POW DBM Y Axis Unit is set to dBm
dBmV :UNIT:POW
DBMV
Y Axis Unit is set to dBmV
dBmA :UNIT:POW
DBMA
Y Axis Unit is set to dBmA
W :UNIT:POW W Y Axis Unit is set to W
V :UNIT:POW V Y Axis Unit is set to V
A :UNIT:POW A Y Axis Unit is set to A
dBmV :UNIT:POW
DBUV
Y Axis Unit is set to dBmV
dBmA :UNIT:POW
DBUA
Y Axis Unit is dBmA. The unit dBuA can also appear as a
Transducer Unit
dBpW :UNIT:POW
DBPW
Y Axis Unit is set to dBpW
1244 Spectrum Analyzer Mode User's &Programmer's Reference

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)