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Chapter 5 Using LTE/LTE-A FDD Analyzer
Conducting RF measurement
3
Tap Freq. Ref.(Frequency Reference) to set the clock source.
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Figure 38
Figure 38 LTE/LTE-A FDD spectrum measurement
Conducting RF measurement
The following sections describe how to conduct RF analysis.
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 and power spectral
density (PSD) of the signal in the LTE channel bandwidth.
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Internal: Uses a 10 MHz internal clock
External: Uses external 10 MHz, 13 MHz, or 15 MHz clock automatically set
by the instrument
GPS: Uses a built-in GPS as a frequency and timing source
NOTE
Make sure to set Frequency Reference for all measurement mode in LTE-LTE-
A FDD Analyzer to sync the proper clock source.
shows an example of LTE/LTE-A FDD spectrum measurement.
SPA06MA-O User's Guide
22145360, R005
April 2021
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