Monitor Spectrum Measurements - Keysight X Series Measurement Manual

Making MSR Measurements
MSR Downlink Signal Measurement

Monitor Spectrum Measurements

This section explains how to make a Monitor Spectrum measurement on a LTE
TDD downlink signal. The Monitor Spectrum measurement is the default
measurement in MSR mode. It shows a spectrum domain display of the test
signal. The primary use of Monitor Spectrum is to allow you to visually make
sure you have the RF carrier available to the instrument, and the instrument is
tuned to the frequency of interest. For more information on this measurement,
see
page
For signal setting, see
Measurement Procedure
Step
1. Perform the common
configuration.
2. Initiate the Monitor
Spectrum
measurement.
3. Set the measurement
span frequency.
4. Set the measurement
average.
Keysight N9083A & W9083A Measurement Guide
"Monitor Spectrum (Frequency Domain) Measurement Concepts" on
63.
"Setting the Downlink Signal" on page
Action
"Common Measurement
See
Procedure (Downlink)" on
page 16
.
Meas
Press , Monitor Spectrum.
SPAN X Scale
Press
numerical span using the front-panel
keypad, and select a units key, such as
MHz
. Here 40 MHz is used.
Meas Setup, Avg
Press
Number, On
, enter a number (such
as 50) using the front-panel keypad.
The measurement result should look
Figure 2-5
like .
Notes
It is not necessary if you already did it in other
measurements.
Monitor Spectrum is the default view of MSR.
This step is not necessary if you first open
MSR application.
The default display shows the
(yellow trace) data. You can compare current
trace with
Average
or
Trace/Detector.
, enter a
The attribute of carrier 2 to 5 are displayed on
spectrum, since there is not enough space for
displaying texts for Carrier 1 and 6, only
vertical lines and arrows are displayed.
14.
Current
Max Hold
trace, Min Hold trace
trace using setup under
17