Abstract: A system and method of operating a system for controlling an unmanned aerial vehicle over a cellular network provides capability for UAV operators to control the UAV without requiring the operator to be within a limited range of the UAV, enabling non-line-of-sight control. A command and control station is communicatively coupled to the cellular network, which is in turn communicatively coupled to the UAV. Video streaming capability is provided, in addition to a modular circuitry unit capable of accepting a wide variety of customizable circuitry units designed for various specific purposes and capabilities.