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RF Transceivers

Radio Frequency (RF) transceivers are electronic devices that can both transmit and receive radio frequency

What is an RF Transceiver?

RF transceivers transfer information wirelessly between two devices. RF transceivers include both a transmitter and a receiver converting voice, video and data into a radio frequency for a variety of wireless applications such as satellite communication, mobile phones, radio and television signal.

RF Transceivers convert IF (intermediate frequency) to RF Signals and vice versa.

The main feature of the RF module is an embedded system to communicate with another device wirelessly. In an RF transceiver, the transmitter and receiver will share common circuitry. An electronic switch permits the RF transmitter and receiver to be joined to the same antenna and stops the output of the transmitter from damaging the receiver.

Transceivers are categorised by how the receiver and transmitter communication channel is managed. This can be full-duplex or half-duplex communication access.

What is the difference between duplex and half-duplex?

This refers to the type of transmission of the data

Examples:

  • A telephone is full-duplex as both parties are able to talk at once
  • A walkie talkie is half-duplex as only one party can transmit at a time
  • How to choose the right RF transceivers

There are many types of RF transceiver around so your choice will depend on your desired application and chosen devices. Considerations when choosing a transceiver include everything from output power and supply voltage to frequency range, data rate and packaging.

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