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[CPAP] signal dBm
#1
what do we mean by dBm? signal moving from 183 to - 113?
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#2
decibel milliwatts what are you trying to understand ? Huhsign

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#3
Since Signal Strength has to be relative to some power level; the standard reference is 1 milliWatt. And since Signal Strength may vary over decades, a base 10 logarithm is used. Hence the deciBel is use as it it logarithmic. Negative numbers indicate power levels less than 1 milliWatt.
https://en.wikipedia.org/wiki/DBm
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