Repeaters play a crucial role in extending the range of communication for ham radio operators. They receive signals on one frequency and retransmit them on another, allowing for wider coverage and clearer communication.
Repeaters consist of a receiver, transmitter, and controller. The receiver picks up the incoming signal, the transmitter re-broadcasts it on a different frequency, and the controller manages the repeater's operations.
Analog repeaters are the traditional type, using FM modulation. They are simple and widely used but lack the advanced features of digital repeaters.
Digital repeaters use digital modes such as DMR, YSF, and P25. They offer improved audio quality, error correction, and additional features like text messaging and GPS integration.