Ключевые слова: aerial, air, amplifier, antenna, background, blue, broadcast, cable, catv, channel, clear, cloud, communication, connection, day, digital, dish, electric, engineer, equipment, frequency, grooved, half, house, information, installation, internet, metal, network, old, outdoor, radar, radio, receiver, reception, reciever, roof, satellite, service, signal, sky, space, technology, telecom, transmission, transmitter, tv, wave, white,