Which system transmits and receives on the same frequency?

Which system transmits and receives on the same frequency?

• A. Simulcast System
• B. Simplex System
• C. Repeater System
• D. GPS - Global Positioning

Answer: (B)

Simplex operation uses a single frequency for both sending and receiving. In this setup, radios share one channel and take turns: you press to transmit and listen when you’re not, rather than having separate channels for talk and listen. This is different from a repeater system, which uses one frequency to receive and a different frequency to transmit, extending range. Simulcast may use multiple transmitters on the same frequency for broader coverage, but the key point here is that the channel itself remains the same for both directions. GPS isn’t a voice two-way system at all, so it doesn’t apply.

Simplex operation uses a single frequency for both sending and receiving. In this setup, radios share one channel and take turns: you press to transmit and listen when you’re not, rather than having separate channels for talk and listen. This is different from a repeater system, which uses one frequency to receive and a different frequency to transmit, extending range. Simulcast may use multiple transmitters on the same frequency for broader coverage, but the key point here is that the channel itself remains the same for both directions. GPS isn’t a voice two-way system at all, so it doesn’t apply.