rf relay

RF relays are special type of switch that allows the signals to be transmitted without using of wires. But it achieves this by harnessing a little thing called radio waves. Radio waves are some form of electrical energy that can go through the air, linking various segments of electronic parts together to allow communication in between them. An RF relay converts electrical signals (similar to small bursts of energy) into radio waves. It sends out these radio waves through an antenna (a small tower) that catches the waves. The electrical signals, after transmission on the light laser or tube, have to be converted back into electrical signals, once they reach the other end. The receiving device, including a speaker or display, will then use these signals to perform its function. Radio-Frequency (RF) relays provide an important function for a large number of products that rely on wireless RF communications—in our cell phones, TV remote controls and many other consumer electronic devices.

The RF relays play a very vital role as they enable cooperation of electronic devices. Typically an RF relay is sent signals from a type of device such as a switch, remote control or sensor that detects something in the environment. What the RF relay does is process these electrical signals, amplify them; thereby, making it possible for them to be used over longer distances. Next, the data is converted into radio waves and transmitted to the opposite side. When the radio waves reach the receiver, they are converted back into electrical signals. These signals are then transmitted to an output device such as a speaker that can produce sound, a display that can render images, or a motor that can move something. In fact, the RF relays can also function in reverse. This allows them to receive radio waves and translate those back into electrical signals that can be utilized in an electronic circuit.