What does simplex mean?

What does simplex mean?

• A. Simultaneous talk-listen
• B. One-way communication (push to talk, release to listen)
• C. Frequency hopping
• D. Repeater-assisted

Answer: (B)

Simplex means a one-way channel: signals travel in only one direction from transmitter to receiver, with no same-channel return path for a response. A broadcast example helps visualize this: the station transmits and everyone else receives, but there isn’t a built-in way for the receivers to talk back on that same link. The option describes this in practical terms as “one-way communication (push to talk, release to listen),” which shows you only transmit when you choose to, and otherwise you’re listening. If you needed two-way talk at the same time, that would be full-duplex; if you alternate directions, that’s half-duplex, still related to how the channel is used.

Simplex means a one-way channel: signals travel in only one direction from transmitter to receiver, with no same-channel return path for a response. A broadcast example helps visualize this: the station transmits and everyone else receives, but there isn’t a built-in way for the receivers to talk back on that same link. The option describes this in practical terms as “one-way communication (push to talk, release to listen),” which shows you only transmit when you choose to, and otherwise you’re listening. If you needed two-way talk at the same time, that would be full-duplex; if you alternate directions, that’s half-duplex, still related to how the channel is used.