In Session 372a of Tesos en Wi-Fi WLANPros Wi-Fi Design, a technical demonstration of 3D predictive modeling and coverage validation was conducted using Hamina Wireless and Sidos. The class showcased advanced designs in multilevel industrial environments such as warehouses with mezzanines and fiber plants featuring over 80 APs as well as sports arenas with sloped seating, alongside real world field survey validations. Throughout these exercises, the instructors evaluated Wi-Fi signal propagation across 2.4, 5, and 6 GHz, RF attenuation through materials like concrete, brick, and metal structures, and audited live metrics including transmit power (14dBm), channel widths (40MHz), and RSSI levels against predictive simulations.