the.com/signal strength
how loudly the universe is shouting your data at you versus everyone else's noise.
means a measure of how powerful a wireless signal is by the time it reaches your device, usually expressed in bars or decibels.
from from radio engineering, where measuring received power (in decibel-milliwatts, dBm) let engineers quantify what antennas had always just guessed at — how far a shout could travel before becoming a whisper.
bars are fakephones round noisy dbm readings into arbitrary bar counts.
unit usedmeasured in dbm, a logarithmic decibel scale.
walls hurtconcrete and metal can drop signal by 90 percent.
negative numberscloser to zero dbm means stronger, not weaker.