What is Infrared ?

What is Infrared ?
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Answer :

Infrared is a type of electromagnetic wave whose frequency range is terahertz ( THz) . Infrared is used in data communication between very close devices. This technology has transmitters and receivers at both ends. Signal transmitting is done via LED (Light Emitting Diode) or ILD (Interjection Laser Diode) and the photo diode receives the signal. The disadvantage of an infrared signal is that it cannot penetrate the walls or hard objects of the house and reach the other end.
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Last Answer : Infrared devices are usually used in WAN .

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Description : Write the features of broadcast infrared transmission ?

Last Answer : Answer : Due to the characteristics of broadcast infrared transmission, its frequency can be from 100 GHz to 1000 THz. Depending on the type of equipment I am using, the cost may be lower. ... into too much space. According to point-to-point infrared transmission, attenuation and EMI can occur here.

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