Frequently Asked Questions
What is a decibel (dB)?
A decibel is a logarithmic unit used to express the ratio of two physical quantities. It is commonly used to measure sound intensity, electronic signal strength, and communication loss.
How much louder is a 10 dB increase?
A 10 dB increase is perceived as roughly twice as loud to the human ear, while the actual acoustic energy increases by a factor of 10.
What is the difference between dBm and dBW?
dBm references 1 milliwatt (mW) and dBW references 1 watt (W). The relationship is 0 dBm = -30 dBW.
2026 physical constants