How To Identify Radio Frequency Bands

For an electromagnetic wave to carry information, its properties such as frequency, amplitude and phase, need to be systematically modulated. To communicate information, the modulated wave will then have to be transmitted, detected and finally transformed into other signals such as sound. This whole process is generally called radio communication. The frequencies used for radio […]

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How To Find the Best Screen Filter

Screen filters for computer monitors can help cut visual fatigue and eyestrain by making images sharper, crispier and clearer. It also virtually eliminates screen emissions. It uses anti-reflection coatings, and it also corrects density color to control the displayed image. For a computer screen, it is best to use a LCD filter since computer screens […]

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