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Why the singnal of wireless/Tv in db value? and why it is
showing in minus(-)?
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Answer Posted / kashmir singh
The decibel ( dB) is used to measure sound level, but it is also widely used in electronics, signals and communication. The dB is a logarithmic unit used to describe a ratio or it is the unit of sound.
its value is showing in minus(-) because mathematically we take antilog of the value of sound/noise
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