Transceiver (TRX)

What is transceiver (TRX)?
A transceiver (TRX) is a device that can send and receive signals. Typically, a transceiver contains both a transmitter and a receiver that both share a common circuit. However, if the sender and receiver only share a common housing and nothing else, the device is called a transceiver. Transceivers are extremely important in the history of technology as they paved the way for many inventions such as two-way radios, cell phones, and the Internet.
There are two main types of radios: full duplex and half duplex. In a half-duplex transceiver, when a radio transceiver sends the message, the receiver section is disabled. Because both parts share the same components, including the same antenna, the parts cannot send and receive signals at the same time. Thus, it is not possible to receive during transmission, although sometimes both operations can take place on the same frequency. An example of using such a system is in two-way radios, also known as walkie-talkies, that use push-to-talk features.

In full duplex transceivers, the transceiver can receive signals in transit. In such transceivers, however, the transmitter and receiver work with completely different frequencies. This prevents any kind of signal interference. Many modern devices, including cell phones and devices that use satellite communications, use this technology.

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