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CellAdvisor 5G User's Guide
137
Conducting RF measurement
Channel Power
The Channel Power measurement is a common test used in the wireless industry to measure the total transmitted power of a radio
within a defined frequency channel. It acquires a number of points representing the input signal in the time domain, transforms this
information into the frequency domain using Fast Fourier Transform (FFT), and then calculates the channel power. The effective
resolution bandwidth of the frequency domain trace is proportional to the number of points acquired for the FFT.
The channel power measurement identifies the total RF power, power spectral density, and Peak to Average Ratio (PAR) of the
signal within the channel bandwidth.
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 to set the center frequency using the on-screen keyboard.
4 Tap Menu > BW/AVG > Average to set the number of measurements to be averaged using the on-screen keyboard.
The input value range is from 1 to 100.
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 Tap High Limit to set the upper threshold using the on-screen keyboard.
4 Tap Low Limit to set the lower threshold using the on-screen keyboard.
5 Optional. Tap the Save hot key on the side bar and select the save option from the choices available for your measurement
mode.