पूर्ण द्वैध संचार प्रणाली (फुल डुप्लेक्स कम्युनिकेशन चैनल) एक उदाहरण: A. रेडियो प्रसारण B. टेलीविजन प्रसारण C. वाकी-टॉकी D. टेलीफोन पर बातचीत

In full-duplex communication both sides can send and receive at the same time, as in a telephone conversation. A walkie-talkie is half-duplex (one at a time), and radio and TV broadcasts are simplex (one way).