Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.5 Channel Power Measurement
PSD Unit
Sets the unit bandwidth for Power Spectral Density. The available units are dBm/Hz
(DBMHZ) and dBm/MHz (DBMMHZ).
Remote
Command
:UNIT:CHPower:POWer:PSD DBMHZ | DBMMHZ
:UNIT:CHPower:POWer:PSD?
Example
:UNIT:CHP:POW:PSD DBMMHZ
:UNIT:CHP:POW:PSD?
Couplings When the PSD unit is changed, the response to :MEAS|READ|FETCH:CHP1? also changes by the
PSD unit basis (either dBm/Hz or dBm/MHz)
Preset WLAN mode or SA mode with WLAN radio standard: DBMMHZ
Otherwise: DBMHZ
State Saved Saved in instrument state
Range dBm/Hz | dBm/MHz
IF Gain
Sets IF Gain to Auto, Low Gain or High Gain. These settings affect sensitivity and IF
overloads.
Remote Command
[:SENSe]:CHPower:IF:GAIN[:STATe] ON | OFF | 1 | 0
[:SENSe]:CHPower:IF:GAIN[:STATe]?
Example
:CHP:IF:GAIN ON
:CHP:IF:GAIN?
Notes ON = high gain
OFF = low gain
Dependencies The IF Gain controls (FFT IF Gain and Swept IF Gain) have no effect when the U7227A USB Preamp-
lifier is connected. This is not annotated or reflected on any control; there are no controls grayed out
nor any SCPI locked out. The instrument simply behaves as though both FFT IF Gain and Swept IF
Gain are set to Low regardless of the setting on the controls
Not available in VXT model M9421A
Preset
OFF
State Saved Saved in instrument state
Range Low Gain | High Gain
Auto Function
Remote
Command
[:SENSe]:CHPower:IF:GAIN:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:CHPower:IF:GAIN:AUTO[:STATe]?
628 Short Range Comms & IoT 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)