Ключевые слова: amplifier, antenna, broadcast, broadcasting, cable, channel, communication, contact, dish, frequency, galaxy, infinity, interference, internet, network, physics, planet, radar, radio, radio station, radio telescope, radio wave, receiver, reception, satellite, signal, sky, space, star, technology, telephone, telescope, transmission, tune, tuning, ufo, universe, viewing, walkietalkie, watch, waves,