In this radar system, which subassembly is directed by the processor to ensure the transmitted reply is radiated from the same antenna?

In this radar system, which subassembly is directed by the processor to ensure the transmitted reply is radiated from the same antenna?

• A. RF distribution subassembly routes the chosen video so that the transmitted reply is radiated from the same antenna.
• B. Antenna
• C. Transmitter
• D. Receiver

Answer: (A)

The key idea is how the radar routes signals so the same antenna handles both transmitting and receiving. The processor directs the RF distribution subassembly to take the selected transmit video and connect it to the antenna, and to manage the path so the received signals come back through the same antenna. This subassembly acts as the switchyard for RF paths, ensuring the transmit energy leaves via the same antenna that will receive the echoes, by coordinating the routing and duplexing between transmitter, receiver, and antenna. The antenna itself is just the radiating element, not the path controller. The transmitter creates the RF signal, but it’s the RF distribution subassembly that routes that signal to the antenna. The receiver processes signals after they come from the antenna, but it doesn’t control which antenna is used for transmission.

The key idea is how the radar routes signals so the same antenna handles both transmitting and receiving. The processor directs the RF distribution subassembly to take the selected transmit video and connect it to the antenna, and to manage the path so the received signals come back through the same antenna. This subassembly acts as the switchyard for RF paths, ensuring the transmit energy leaves via the same antenna that will receive the echoes, by coordinating the routing and duplexing between transmitter, receiver, and antenna.

The antenna itself is just the radiating element, not the path controller. The transmitter creates the RF signal, but it’s the RF distribution subassembly that routes that signal to the antenna. The receiver processes signals after they come from the antenna, but it doesn’t control which antenna is used for transmission.