Ключевые слова: 3g, 4g, aerial, antenna, blue, broadcast, broadcasting, cell, cellular, communication, connection, data, equipment, frequency, galvanized, global, gsm, high, industrial, industry, mast, metal, microwave, mobile, network, old, phone, radiation, radio, receiver, repeater, satellite, signal, sky, stained, station, steel, structure, technology, telecommunication, telephone, tower, transmission, transmit, transmitter, wave, weathered, white, wire, wireless,