Increasing RF Spectrum Congestion Demands Enhanced Coexistence Testing

Published on May 14, 2026

The proliferation of connected devices has created an unprecedented demand for wireless spectrum. With the number of connected devices soaring past 30 billion and over 4,000 allocation changes influencing global communication, the landscape has become crowded. This congestion risks the reliability of wireless communications across various sectors.

Recent incidents have highlighted the critical need for effective RF coexistence testing. Interference between 5G C band transmitters and aircraft radar altimeters poses significant safety risks. Similarly, conflicts between terrestrial L band networks and GPS receivers threaten the operation of systems that were not engineered to handle such adjacent high-power signals.

To address these challenges, the adoption of tiered spectrum sharing frameworks is becoming essential. The Citizens Broadband Radio Service (CBRS) employs a cloud-based Spectrum Access System and environmental sensing to balance the needs of military applications and commercial services. This approach allows for dynamic protection of incumbent users while facilitating broader access.

The implementation of controlled testing environments is crucial for assessing device performance amid real-world interference. Utilizing anechoic chambers and standardized testing methods such as ANSI C63.27 provides more reliable evaluations. This rigorous approach ensures that emerging technologies can coexist without compromising safety or service quality, paving the way for a more secure wireless future.

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