MWF Ground Reinforcement UniteMWF Ground Reinforcement Unite Equipped with built broadcast device works on two systems, signal filter system to confirm target location, and ground transmitter system to strengthen of the signal, to work in mountainous and rocky areas. This unit works via Bluetooth system to communicate with the main unit through a special control interface to turn on off, of these systems through the system interface. This unit conforms to several modules: MF 1100