Keysight x-series Programmer's Reference

3 VMA Mode
3.2 Custom OFDM Measurement
State Saved Saved in instrument state
Min 0dB
The attenuation set by this control cannot be decreased below 6dB with the knob or step keys. To get
to a value below 6dB it has to be directly entered from the keypad or via SCPI. This protects from
adjusting the attenuation to a dangerously small value which can put the instrument at risk of damage
to input circuitry. However, if the current mechanical attenuation is below 6dB it can be increased with
the knob and step keys, but not decreased
Max CXA Option 503 or 507: 50 dB
EXA: 60dB
All other models: 70dB
Elec Attenuation
Set electronic attenuation for each component carriers.
Remote
Command
[:SENSe]:OFDM:CCARrier[0]|1|…|7:RF:CHANnel1|…|8:EATTenuation <rel_ampl>
[:SENSe]:OFDM:CCARrier[0]|1|…|7:RF:CHANnel1|…|8:EATTenuation?
Example
:OFDM:CCAR0:RF:CHAN1:EATT 20
Preset 0dB
State Saved Saved in instrument state
Min 0dB
Max Dual attenuator configuration: 24dB
Single attenuator configuration: the total of ATT and EATT cannot exceed 50 dB, so if the EATT is set to
24 dB first, the main attenuation cannot be greater than 26 dB and will be reduced accordingly; if the
main attenuator is set to 40 dB first, EATT cannot be greater than 10 dB
LNA
Turn on/off Low Noise Amplifier (LNA) for each component carriers.
Remote Command
[:SENSe]:OFDM:CCARrier[0]|1|…|7:RF:CHANnel1|…|8:GAIN:LNA OFF | ON | 0 | 1
[:SENSe]:OFDM:CCARrier[0]|1|…|7:RF:CHANnel1|…|8:GAIN:LNA?
Example
:OFDM:CCAR0:RF:CHAN1:GAIN:LNA ON
Dependencies Requires option LNA
Preset OFF
State Saved Saved in State
Internal Preamp
Turn on/off internal preamp for each component carriers.
Vector Modulation Analyzer Mode User's &Programmer's Reference 500

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)