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Figure 138 5G DSS occupied bandwidth measurement
The Occupied Bandwidth measurement shows both of power across the band and
power bandwidth in a user specified percentage to determine the amount of spectrum
used by a modulated signal. Occupied bandwidth is typically calculated as the band-
width containing 99% of the transmitted power.
Spectrum emission mask
The Spectrum Emission Mask (SEM) measurement is to identify and determine the
power level of out-of band spurious emission outside the necessary channel
bandwidth and modulated signal. It measures the power ratio between in-band and
adjacent channels. The SPA06MA-O indicates either Pass or Fail based on the
specified limit of the signal.
Setting measure setup
After configuring the spectrum measurement in
on page
measurement settings can be saved and recalled as a file by selecting File Type as
Setup and load the file onto the instrument using the Save/Load icons on the side bar.
To set measure setup
1
Tap the Setup (
2
Tap Bandwidth from the following choices: 5 MHz, 10 MHz, 15 MHz, or 20 MHz.
3
Tap to switch Signal Tech Type to TDD or FDD.
4
Tap Mask Type and select from the following options: Wide Area BS A, Wide
Area BS B, Local Area BS, or Home BS.
The category is defined with base station type. Set Wide Area BS A/B for macro
cell, Local Area Base Station for pico cell, and Home Base Station for femtocell.
April 2021
9, you can set the measure setup to continue your measurement. The
) icon in the side bar.
SPA06MA-O User's Guide
"Configuring spectrum measurements"
22145360, R005
Chapter 9 Using 5G DSS Signal Analyzer
Conducting RF measurements
Page 295
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