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CellAdvisor 5G User's Guide
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Occupied Bandwidth with LTE/LTE-A TDD Analyzer
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 bandwidth
containing 99% of the transmitted power.
Spectrum Emission Mask (SEM)
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 CellAdvisor 5G indicates either Pass or Fail based on the specified limit of the signal.
Setting measure setup
After configuring spectrum measurement in " Configuring Spectrum Measurements ", you can set the measure setup to continue your
measurement. The 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.
1 Tap the Setup ( )icon on the side bar.
2 Tap Bandwidth and select the value from the following choices: 1.4 MHz , 3 MHz , 5MHz , 10 MHz , 15 MHz , or 20 MHz .
You can also tap the rectangle with value, under the chart screen and input the value
using the on-screen keyboard.
3 Tap Mask Type and select the type from the following choices: Wide Area BS A , Wide Area BS B , Local Area BS , Home BS .
4 Tap Subframe Number to set the number of subframe using the on-screen keyboard.
5 Optional. Tap Physical Cell ID and select the type, Manual or Auto.
Auto lets the instrument detect the Physical Cell ID for the LTE signal automatically, and Manual sets a specific Physical Cell
ID for the LTE signal manually in order to speed up the synchronization with a BTS.
Setting limit
1 Tap Menu > Limit .
2 Tap to switch the Test Limits to On or Off to enable or disable Pass/Fail indication.
The result table color for Pass is green, and the result table color for Fail is red.
3 Optional. Tap the Save hot key on the side bar and select the save option form the choices available for your measurement
mode.