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Half-duplex (alternating transmission / reception)

Half-duplex mode means that a transceiver can both transmit and receive a signal, but not simultaneously. Users must take turns transmitting, which is the principle of alternating transmission and reception. When one user speaks, others can only listen. To initiate transmission, a button must be pressed and held, often referred to as PTT (Push-to-Talk). After releasing the button, the transceiver switches back to receive mode and can pick up a response from others. This communication method is typical for most common radio stations.

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