Conformance Evm Measurement - Keysight X Series Measurement Manual

Making MSR Measurements
MSR Downlink Signal Measurement

Conformance EVM Measurement

This section explains how to make the Conformance EVM measurement on a
MSR downlink signal. For the detailed instruction about this measurement, see
"MSR Conformance EVM Measurement Concepts" on page
For signal setting, see
Measurement Procedure
Step
1. Perform the common
configuration.
2. Initial Conformance
EVM measurement.
3. Configure the
parameter set.
Keysight N9083A & W9083A Measurement Guide
"Setting the Downlink Signal" on page
Action
"Common Measurement
See
Procedure (Downlink)" on
page 16
.
Meas, Conformance EVM
Press
Mode Setup, Format, LTE
Press
FDD Select LTE FDD Param
then
Set
.
Choose 1 to 3 for parameter set, then
you can check and change the
parameter value by pressing Format
Parameter List.
Configure the other modes (under
Mode Setup, Format) using the same
way.
Notes
It is not necessary if you already did it in other
measurements.
The conformance EVM measurement result
.
Figure 2-20
should look like
is the Gaussian trace and the yellow line is the
measurement result.
The Info BW is the channel bandwidth that
will be used for data acquisition. You can
manually change the Info BW under the BW
menu.
For more information about Format
Parameter List settings, see
Parameter List in Mode Setup" on
page 69
.
The parameter name, related SCPI and value
are listed in Parameter List with tabular form.
You can send the SCPI to change them or you
can manually change them by selecting the
parameter using knob or up and down arrows
then enter the value using front panel keys.
If you use a test model to do the
measurement, the Recall function is provided
for E-URTA Test Models (E-TM) to setup the
LTE FDD parameters automatically. See
"Recall EVM setup.".
64.
14.
. The blue line
"Format
41