Ключевые слова: 3g, 5g, antenna, antennas, blue, broadcast, broadcasting, building, cable, cell, cellular, communication, communications, connection, equipment, frequency, global, gsm, high, house, intercommunication, mast, metal, metallic, mobile, network, phone, radio, receiver, roof, satellite, signal, sky, station, technology, telecommunication, telecommunications, telephone, tower, transmission, transmitter, umts, wireless,