Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.5 ACP Measurement
Modes Values
SA IBW 220 kHz
IBWR 30 kHz
WCDMA IBW 100 kHz
IBWR 27 kHz
FAST 390 kHz
When Meas Method is FPOWer and Fast Power RBW mode is “Best Speed,” RBW is calculated as
follows:
RBW = Span × 2.442 × 10
-3
Dependencies Disabled when Meas Method is RBW, FAST, or FPOWer, and Fast Power RBW mode is Best Speed
If pressed, an advisory message is generated. If the equivalent SCPI command is sent, a "Setting
conflict" warning is generated
Couplings Sweep time is coupled to RBW. As RBW changes, the sweep time (if set to Auto) is changed to
maintain amplitude calibration
"Video BW" on page 938 is coupled to Res BW. As the resolution bandwidth changes, the video
bandwidth (if set to Auto) changes to maintain the ratio of VBW/RBW (10:1)
When Res BW is set to Auto, the resolution bandwidth is auto-coupled to the span. The ratio of
Span/RBW is approximately 106:1 when auto coupled. When Res BW is set to Man, and the
bandwidths are entered manually, these bandwidths are used regardless of other instrument settings
Preset Auto, unless noted in "RBW Presets" on page 937
State Saved Saved in instrument state
Min 1 Hz
Max 8 MHz is the max equivalent –3 dB RBW, which means that the named RBW (the one shown on the
control etc.) can actually exceed 8 MHz if using a filter other than –3 dB Gaussian
Annotation A “#” mark appears before “RBW” in the annotation when it is switched from Auto to Manual coupling
Backwards
Compatibility
Notes
For backwards compatibility, this command accepts both the BANDwidth and BWIDth forms
For ESA, the maximum Res BW was 5 MHz; for X-Series it is 8 MHz
The following command is supported
[:SENSe]:ACP:SWEep:BANDwidth|BWIDth[:RESolution]
Auto Function
Remote
Command
[:SENSe]:ACPower:BANDwidth[:RESolution]:AUTO ON | OFF | 1 | 0
[:SENSe]:ACPower:BANDwidth[:RESolution]:AUTO?
Example
:ACP:BAND:AUTO ON
:ACP:BAND:AUTO?
Preset See "RBW Presets" on page 937
RBW Presets
Unless noted in the table below, the Preset value of Res BW is Auto.
Spectrum Analyzer Mode User's &Programmer's Reference 937

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)