Keysight x-series Programmer's Reference

3 VMA Mode
3.2 Custom OFDM Measurement
Format
Lets you configure format parameters.
FFT Length
Specifies the FFT length for the OFDM transmission.
Remote
Command
[:SENSe]:OFDM:CCARrier0|…|7:FFT:LENGth <integer>
[:SENSe]:OFDM:CCARrier0|…|7:FFT:LENGth?
Example
:OFDM:CCAR0:FFT:LENG 64
:OFDM:CCAR0:FFT:LENG?
Preset 64
State Saved Yes
Min 4
Max 65536
System Sample Frequency
The OFDM System Sample Frequency parameter specifies the FFT sample rate (Hz).
Remote
Command
[:SENSe]:OFDM:CCARrier0|…|7:SAMPle:FREQuency <freq>
[:SENSe]:OFDM:CCARrier0|…|7:SAMPle:FREQquency?
Example
:OFDM:CCAR0:SAMP:FREQ 1MHz
:OFDM:CCAR0:SAMP:FREQ?
Preset 10 MHz
State Saved Yes
Min Depends on System BW
Max 10 GHz
Guard Lower Subcarriers
Specifies the number of lower guard subcarriers. The Guard Lower Subcarriers are
not included in any Trace data result.
Remote
Command
[:SENSe]:OFDM:CCARrier0|…|7:GUARd:LOWer <integer>
[:SENSe]:OFDM:CCARrier0|…|7:GUARd:LOWer?
Example
:OFDM:CCAR0:GUAR:LOW 5
:OFDM:CCAR0:GUAR:LOW?
Couplings Total Guard Subcarriers (Guard Lower Subcarriers + Guard Upper Subcarriers) should be less than the
FFT Length
Vector Modulation Analyzer Mode User's &Programmer's Reference 506

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)