RT is defined as what?

• A. A device that only receives a signal
• B. A system that receives and transmits a signal
• C. A system that receives and transmits a signal and an indicator
• D. An indicator-only device

Answer: (C)

Two-way radiotelephone communications rely on a system that can both receive and transmit signals, and typically includes a status indicator. The best answer reflects that RT is not just a receiver or a transmitter alone, but a complete two-way communication system with an indicator to show when the unit is transmitting or receiving. Hearing replies from controllers or other stations and sending your own message back require the ability to receive and transmit. An indicator helps you confirm the system’s active state, reducing the chance of speaking into an inactive or unused channel. The other options miss either the bidirectional capability or the presence of a status indicator, so they don’t fully describe RT.