Ключевые слова: antenna, backlight, base, beiras, broadcast, broadcasting, communication, dark, data, dish, dusk, electronic, equipment, estrela, europe, fence, flare, glow, guarda, house, installation, internet, light, mast, network, nightfall, parabolic, portugal, power, ray, receiver, repeater, shade, signal, station, structure, sun, sunbeam, sundown, sunlight, sunny, sunset, technology, telecommunication, telephonic, tower, transceiver, transmitter, warm, wireless,