Aerials; Global positioning system (GPS); Global positioning system (GPS) consisting of computers, computer software, transmitters, receivers, and network interface devices; Masts for wireless aerials; Radios; Satellite navigational system, namely, a global positioning system (GPS); Transmitters of electronic signals; Transmitting and receiving apparatus for radio and television broadcasting and for long-distance transmission; Vehicle radios; Walkie-talkies; Interoperable communication system...