Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.2 Modulation Analysis Measurement
Response
Displays the trace data choices that show equalizer response results.
CH Freq Response
The CH Frequency Response trace shows the channel frequency response for which
the equalizer is correcting. It’s computed as the inverse of the equalization filter’s
frequency response.
Example
:DISP:EVM:WIND2:DATA CHFR
sets the second window data to CH Freq Response
EQ Impulse Response
The EQ Impulse Response trace shows the impulse response of the equalization
filter.
Example
:DISP:EVM:WIND2:DATA EQIR
sets the second window data to EQ Impulse Response
Tables
Displays the trace data choices that are in tabular form, including Metrics and
Demod Bits.
Metrics
This table shows the measurement numeric results.
Example
:DISP:EVM:WIND4:DATA DEMR
sets the fourth window data to Metrics.
The available tabular data changes depending on the modulation format chosen.
Numeric results when modulation format is Offset QPSK:
Name Type Description Unit Format
Transmit Power float64 transmit power dBm XX.XX dBm
Rms Offset EVM float64 Offset EVM over the entire measurement area percent XX.XX %
Peak Offset EVM float64 peak Offset EVM in the measurement area percent XX.XX %
Short Range Comms & IoT Mode User's &Programmer's Reference 197

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)