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WI-FI is one of the most widely used radio technologies and is used in numerous consumer applications such as radio communications, wireless LANs, satellite and cellular communication, vehicle tracking, and process control. Recently, advances in radio transceiver technology have enabled the development of highly reliable and cost-effective solutions for wireless applications. This article focuses on the application fields and working principles of the WI-FI radio technology.

WI-FI radio technology can be used in a variety of applications, including short range communication, long range communication, and wireless telemetry. In short range communication, the WI-FI radio is used for short distance communication between two or more devices. This type of communication is often used in home or office networks, such as those used in the Internet of Things (IoT) and smart home applications. In long distance communication, the WI-FI radio is used to communicate with devices that are located far away from the transmitter. These devices can be vehicles, satellites, or other nodes equipped with transceivers that can transmit and receive radiowaves over a wide range. Wireless telemetry is also a major application of WI-FI radio technology. It is used to monitor remote systems, such as those in industrial and military operations, or to provide mission-critical feedback. This type of communication is especially useful in hazardous or remote locations.

The working principle of WI-FI radio technology is based on the transmission and reception of radiowaves. The transmitted energy is modulated, or modified, in such a way that it can be received by the intended receiver. The receiver then "decodes" the signal and converts it into a digital output, such as music or data. The data is then processed by the receiving device. Additionally, the transmission is encrypted in such a way that only the intended receiver can decode it.

WI-FI radio technology makes use of two different types of modulations, namely Frequency Modulation (FM) and Amplitude Modulation (AM). In FM systems, the transmitted signal is encoded within the frequency spectrum, while in AM systems, the transmitted signal is encoded within the amplitude of the signal. Additionally, WI-FI radio systems may make use of special antenna designs, such as directional antennas, to improve the performance and reliability of the system. It is also possible to combine these two types of modulation techniques, such as FHSS (Frequency Hopping Spread Spectrum), to further improve the system\'s performance.

WI-FI radio technology is an essential part of modern communication systems. It has enabled the development of low cost and reliable radio communication systems for a variety of applications. WI-FI radio technology is used in the form of RF Receiver, Transmitter, and Transceivers Finished Units, which are highly reliable and cost-effective solutions for wireless applications. This technology has greatly improved the way people communicate and is used in numerous applications, such as vehicle tracking, process control, and short and long range communication.

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