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Hints for IEEE 802.11BE EVM Measurements

This application note provides guidance on optimizing Error Vector Magnitude (EVM) measurements for WLAN transmitters, specifically focusing on the IEEE 802.11be standard (Wi-Fi 7). It outlines key features such as increased channel bandwidth, advanced modulation schemes, and multi-link operation, which aim to enhance throughput and reduce latency in wireless communication systems.


February 09, 2025 by Rohde & Schwarz
Topics Covered
Introduction to 802.11be
How to Select the Best Instrument for Testing
Factors Influencing the EVM Measurement
How to Set Up for Best EVM Performance

Application Note Overview 

This document offers technical insights and recommendations for optimizing the measurement of Error Vector Magnitude (EVM), a critical performance metric for WLAN transmitters. It focuses on the IEEE 802.11be standard, also known as Wi-Fi 7, which aims to enhance throughput and reduce latency through features like 4096-QAM modulation and wider bandwidths up to 320 MHz. The application note details optimal hardware configurations, measurement settings, and factors influencing EVM, providing guidance for achieving accurate and efficient EVM measurements in WLAN systems.

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