Ключевые слова: aerial, antenna, blue, broadcast, broadcasting, cell, cellular, contact, country, current, deliver, environment, fiels, framework, frequency, gsm, high, industry, infrastructure, internet, iron, line, link, metal, mobile, network, outdoor, pcn, phone, pillar, pole, pollution, post, power, pylon, receive, sky, station, steel, technology, telecom, telecommunication, tower, town, transmission, transmit,