Communications systems, consisting of radio transmitters and receivers, filters for radio interference suppression, communications software for communicating with users of fixed or hand held radios; Audio and data intercommunications systems comprised of radio transmitters and receivers for mission crews in military vehicles or other ground control applications for military and homeland security; Electronic devices, namely, communication systems comprising radio transmitters and receivers, communications software for connecting computer hardware, traffic management systems comprising air traffic management and control, maritime surveillance radar, aerospace electronics for monitoring aircraft and satellite navigational systems, security systems comprising radio transmitters and receivers and personnel sensors, automotive sensors