The organizations, personnel, procedures, facilities, and networks employed to transmit and receive information by electrical or electronic means. Note 1: Telecommunications facilities include, but are not necessarily limited to, terrestrial radio, metallic and optical fiber cables, artificial Earth satellite communications, radio and television stations (traditional broadcast as well as cable and satellite broadcast,) public switched telephone network (s,) etc. Note 2: Examples of advanced telecommunications infrastructure facilities are direct broadcast satellite (DBS,) digital audio broadcasting (DAB,) Advanced Digital Television, and the Global Positioning System (GPS,) which is used extensively for precise navigation and timing.