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Network Infrastructure Magazine | Tuesday, August 24, 2021
Wireless communication is pervasive in modern life. Wireless technology, in addition to communication, has become an essential element of our daily lives.
FREMONT, CA: In a wireless communication technology network, communication is established, and information is conveyed across the air without cables by employing electromagnetic waves such as radio frequencies, infrared, satellite, and so on.
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Various types of signals are employed in wireless data transmission between devices. The following are the many electromagnetic signals that are deployed based on their wavelength and frequency.
Radio Frequency Transmission
Radiofrequency is an electromagnetic mode of communication that is utilized in wireless communication. RF transmissions with frequencies ranging from 3kHz to 300GHz are easily created. They are employed in wireless communication because of their ability to pass through objects and travel large distances. The radio system is one sort of wireless data transmission. It is a wireless medium that transports data by transmitting electromagnetic waves with low frequencies to distant places via an electrical conductor and an antenna. With their strong amateur broadcasting equipment, ham radio enthusiasts share information and serve as emergency communication assistance during disasters, and they can even send digital data throughout the radio spectrum.
Radio communication is affected by the wavelength, transmitter strength, receiver quality, antenna type, size, and height.
Microwave Transmission
Microwaves are an electromagnetic mode of communication that is employed in wireless communication systems. Microwave wavelengths span from one meter to one millimeter. The frequency ranges between 300MHz and 300GHz. These are commonly utilized for long-distance communications since they are less expensive. Microwave data transmission is an efficient way of wireless data transmission that uses two distinct mechanisms. The satellite technique, which transmits information via a satellite orbiting 22,300 miles above the earth, conveys data using a microwave's wireless media.
Earth ground stations send and receive data signals to and from the satellite at frequencies ranging from 11 GHz to 14 GHz and transmission speeds ranging from 1 Mbps to 10 Mbps. Another approach is a terrestrial method, which uses two microwave towers with a clear line of sight and no obstructions to disturb that line of sight. It is frequently employed for privacy. For terrestrial systems, the frequency of data transmission is commonly 4 GHz to 6 GHz or 21 GHz to 23 GHz, and the speed is typically 1 megabit per second (Mbps) to 10 Mbps.
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