The Spherical Detection Device is a 360° passive RF monitoring system engineered for fixed-site drone detection. Designed to scan continuously across key drone control and navigation frequency bands (e.g., 2400MHz–5800MHz), it enables omnidirectional signal capture and real-time threat identification. With a detection radius of up to 3,000 meters and AI-assisted signal classification, it provides early warning and operator localization for airspace protection. Encased in a weather-resistant spherical shell and designed for rooftop, pole, or facility-mounted deployment, this system is ideal for airports, government buildings, correctional facilities, and critical infrastructure requiring permanent, full-coverage drone surveillance.