Ключевые слова: 4g, antenna, background, base, blue, broadcast, broadcasting, business, cell, cellular, communication, connection, construction, country, czech, data, digital, dusk, frequency, gsm, industry, infrastructure, internet, isolated, lte, mast, metal, microwave, mobile, modern, nature, network, phone, radio, receiver, satellite, signal, sky, station, technology, telecom, telecommunication, telephone, television, tower, towers, transmission, transmitter, white, wireless,