Whitepaper
Why Multi-Interference Testing Matters for Modern Medical Devices
This application note details the importance of multi-interference testing for modern medical devices operating in increasingly congested RF environments like hospitals. Traditional EMC testing is insufficient; wireless coexistence testing—guided by ANSI C63.27—is vital for ensuring patient safety and device reliability. The paper outlines a risk-based, tiered evaluation approach (Tier 1-3) dependent on the severity of potential FWP (Functional Wireless Performance) failures, utilizing KPIs such as throughput, latency, and packet error rate. Testing is demonstrated using Keysight’s Wireless Coexistence Test Solution, which allows for generation of up to eight concurrent interferers across multiple standards including Wi-Fi, Bluetooth, and LTE, highlighting a case study where it identified a data throughput drop from 20 Mbps to 3.9 Mbps in a 5 GHz Wi-Fi infusion pump due to interference.