What Is The Difference Between SIMPLEX & REPEATER Channels?

SIMPLEX and REPEATER channels are two types of communication channels used in radio communication. The key difference between SIMPLEX and REPEATER channels is in how they transmit and receive signals.

A SIMPLEX channel uses a single frequency to both transmit and receive signals. This means that when two radios communicate over a SIMPLEX channel, they take turns transmitting and receiving messages. For example, if Radio A wants to transmit a message to Radio B, it would use a single frequency to transmit the message, and Radio B would use the same frequency to receive the message.

On the other hand, a REPEATER channel uses two different frequencies: one for transmitting and another for receiving. The repeater station is typically located at a high elevation to provide a larger coverage area, and it re-transmits the signals it receives on a different frequency to extend the range of the communication. When two radios communicate over a REPEATER channel, they transmit on one frequency, and the repeater station receives the signal and re-transmits it on a different frequency that is picked up by the receiving radio. This allows for longer-range communication than would be possible using a SIMPLEX channel.

In summary, SIMPLEX channels use one frequency for both transmitting and receiving, while REPEATER channels use two frequencies to extend the range of the communication.

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