Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.3 Channel Power Measurement
Preset WLAN Mode: ON
All other Modes: OFF
State Saved Yes
Range
OFF|ON
PSD Limit
Power Spectral Density Limit.
If PSD Limit state is ON, PSD Limit is a threshold to determine whether the real
measured PSD will pass or not. If real measured PSD exceeds PSD Limit, the test
fails, otherwise, it passes.
If PSD Limit state is OFF, the test always passes.
Remote
Command
:CALCulate:CHPower:LIMit:PSDensity <real>
:CALCulate:CHPower:LIMit:PSDensity?
Example
:CALC:CHP:LIM:PSD 4.00
:CALC:CHP:LIM:PSD?
Notes This parameter and Power Limit can determine Pass/Fail criteria
Power Limit state PSD Limit state Result
ON OFF
Pass if power test passes
Fail if power test fails
ON ON
Pass if both power test and PSD test pass
Fail if either of power test or PSD test fails
OFF ON
Pass if PSD test passes
Fail if PSD test fails
OFF OFF
Always Pass
For WLAN 802.11ac (80 MHz + 80 MHz), the power test and the PSD test are performed to both
carriers. Which means the PSD (or power) readouts of both carriers should be compared with the PSD
(or power) limit individually, and the test passes only when both values are lower than the limit
Couplings The value is automatically converted when PSD Unit is changed
Preset WLAN mode or SA mode with WLAN radio standard: 4.00 dBm/MHz
Otherwise: 4.00 dBm/Hz
State Saved Saved in instrument state
Min/Max –/+200.0
Auto Function
Remote
:CALCulate:CHPower:LIMit:PSDensity:STATe OFF | ON | 0 | 1
664 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)