In this episode of DAS Talk, Gilbert Martinez sits down with Brian Ensign, VP of Sales at Nextivity, to break down the evolution of the RF industry and the growing role of Distributed Antenna Systems (DAS) in public safety. As modern buildings continue to block and degrade RF signals—creating dangerous communication gaps for first responders—solutions like DAS and ERCES are becoming essential infrastructure, not optional upgrades  . Brian shares how Nextivity is leading the shift from traditional cellular coverage to mission-critical public safety systems, including: • The difference between Shield and Extend DAS solutions • Why public safety communication is now a priority in building design • How IoT and smart building technology are expanding beyond DAS • The integration of gunshot detection systems into RF infrastructure • Why DAS is becoming a utility in modern construction This episode also explores how evolving cost models, education for AHJs, and new technologies are reshaping the future of in-building wireless communication. If you’re in the RF industry, public safety, construction, or smart building space—this is a must-watch conversation on where the industry is headed. Need DAS / ERCES Training for Your Team? DAS University provides live, hands-on training camps nationwide designed for technicians, integrators, AHJs, and public safety professionals. Train with some of today’s top DAS and ERCES instructors — all hand-selected professionals with real-world field experience in design, installation, testing, troubleshooting, and public safety communications. • Hands-on DAS and ERCES training • Real-world troubleshooting • RF and signal interference education • Code and compliance training • CEU and NICET CPD opportunities available Modern buildings create major RF communication challenges for first responders, making proper training more important than ever. View upcoming live training camps: https://dasuniversity.org/2026-training-camp-attend