Land Mobile Radios (LMRs) rely on what to communicate?

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Multiple Choice

Land Mobile Radios (LMRs) rely on what to communicate?

LMRs communicate through radio waves. A voice signal from the microphone is converted into an electrical signal, modulated onto a radio frequency, and transmitted as RF energy through the air. Other radios tuned to the same frequency (or within the same network) pick up that RF signal, demodulate it, and convert it back to sound. This wireless link is what lets portable radios talk to each other without any physical connection. Note that while backhaul infrastructure for LMR systems may use telephone lines, fiber, or satellite links to connect dispatch centers and repeaters, the actual communication between handheld or vehicle radios happens via radio waves.

LMRs communicate through radio waves. A voice signal from the microphone is converted into an electrical signal, modulated onto a radio frequency, and transmitted as RF energy through the air. Other radios tuned to the same frequency (or within the same network) pick up that RF signal, demodulate it, and convert it back to sound. This wireless link is what lets portable radios talk to each other without any physical connection.

Note that while backhaul infrastructure for LMR systems may use telephone lines, fiber, or satellite links to connect dispatch centers and repeaters, the actual communication between handheld or vehicle radios happens via radio waves.

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