Novi, Michigan – October 05, 2026 -- WZC Networking, an RF engineering firm that designs and tests in-building radio systems for first responders, is marking its 20th anniversary after resolving two emergency communication failures at Michigan healthcare and senior living facilities. Founded in 2006 by RF engineer John Wierzgac, the company has become a benchmark provider of Emergency Responder Communication Enhancement Systems (ERCES) and Public Safety Distributed Antenna Systems under NFPA 1225 and IFC Section 510 code requirements.