Channel Power - Viavi SPA06MA-O R005 User Manual

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, trans-
forms 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 the spectrum measurement as described in
measurements" on page
ment. 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.
To set measure setup
1 Tap the Setup (
2 Tap Integrated BW and input the value using the on-screen keyboard.
You can also tap the rectangle with the value under the chart screen and input the
value using the on-screen keyboard.
3 Tap
ment will sweep using the on-screen keyboard.
4 Tap Menu > Sweep > Gated Sweep to set the Gated Sweep On or Off.
5 Tap Menu > BW/AVG > Average to set the number of measurements to be aver-
aged using the on-screen keyboard. The input value range is from 1 to 100.
To set the Setting limit
1 Tap Menu > Limit.
2 Tap to switch the Test Limits to On or Off to enable or disable Pass/Fail indica-
tion.
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.
April 2021
9, you can set the measure setup to continue your measure-
) icon on the side bar.
NOTE
Ensure the Detector is configured as RMS when you perform the channel
power measurement.
SPA06MA-O User's Guide
to set the frequency range over which the instru-
22145360, R005
Chapter 2 Using Spectrum Analyzer
Conducting RF measurements
"Configuring spectrum
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