Ключевые слова: antenna, background, base, blue, broadcasting, cell, cellular, communication, communications, equipment, frequency, global, gsm, industry, mobile, network, nobody, phone, radiation, radio, receive, receiver, repeater, satellite, signal, sky, station, steel, technology, telecom, telecommunication, telecommunications, telecoms, telephone, tower, transceiver, transmission, transmit, transmitter, white, wireless,