Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.7 Burst Power Measurement
3.7.4 BW
Opens the BW (Bandwidth) menu, which contains controls for the Resolution
Bandwidth functions of the instrument.
The Resolution BW functions control filter bandwidth and filter type. There are two
filter types, Gaussian and Flattop. The Gaussian filters have a response curve that is
parabolic on a log scale. The Flattop filter shape is a close approximation of a
rectangular filter.
3.7.4.1 Settings
Contains the basic Bandwidth functions.It is the only tab under BW.
Res BW
Sets the Resolution Bandwidth. This is the bandwidth used for the power
measurement. The bandwidth is ideally wide enough to pass all the power of the
bursted signal, while not being so wide that it passes noise that reduces dynamic
range and the accuracy of low level measurements.
Remote
Command
[:SENSe]:TXPower:BANDwidth[:RESolution] <bandwidth>
[:SENSe]:TXPower:BANDwidth[:RESolution]?
Example
:TXP:BAND 1000
:TXP:BAND?
Preset GSM: 510 kHz
SA: 3 MHz
State Saved Yes
Min 1 kHz
Max Hardware Dependent:
–
RF Input:
–
No Option = 10 MHz
–
WB (25 MHz or wider) = Hardware Option Limit
–
I/Q Input (for I+jQ):
–
No Option = 20 MHz
–
Option B25 = 50 MHz
Annotation In the lower left corner of the screen, “Res BW <value>” indicates the current setting of resolution
bandwidth
1292 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)