User`s guide

Agilent PXT Wireless Communications Test Set
User’s Guide
221
Measurement Setup
Uplink Config
Use the Target Subframe setting in the Uplink Config menu to select the required subframe for this
measurement.
Spectrum Flatness Measurement
Key Path:
Mode > SA > LTE > UL Demodulation > Flatness
Figure 6-20: Spectrum Flatness measurement
The Spectrum Flatness measurement determines the power of each active uplink subcarrier. The Absolute
Flatness measurement represents the power of each subcarrier relative to the average power of all the
subcarriers. This measurement is aligned with TS 36.521-1. This measurement is used to verify that the
peak-to-peak variation of the EVM equalizer coefficients contained within the frequency range of the
uplink allocation do not exceed the maximum ripple.