This document presents a comprehensive analysis of out-of-band emissions for LTE Band 4, as part of a larger RF test report. The analysis utilizes spectrum analyzer plots to visualize and quantify emissions levels across various frequency ranges and test configurations. The report focuses on compliance with regulatory limits for spurious emissions, ensuring that the device operates within acceptable parameters.
The tests are conducted using different modulation schemes, including QPSK, and various resource block allocations (1RB#0, 1RB#14, etc.) to simulate diverse operating conditions. The frequency ranges covered include both conducted and radiated emissions, spanning from low frequencies (9 kHz) to high frequencies (20 GHz). Each test configuration is documented with specific parameters, such as resolution bandwidth (RBW), video bandwidth (VBW), and sweep time, to ensure repeatability and accuracy.
The report includes detailed plots showing the emission levels at different frequencies, along with pass/fail indicators to demonstrate compliance with regulatory standards. The data presented in this document is crucial for verifying the electromagnetic compatibility (EMC) of the device and ensuring that it does not cause interference to other wireless systems.