A decibel is one-tenth of a bel and is equal to 10 times the logarithm of the power ratio, 20 times the log of the voltage ratio, or 20 times the log of the current ratio. Decibels are also used to express acoustic power, such as the apparent level of a sound. The decibel can express an actual level only when comparing with some definite reference level that is assumed to be zero dB.
An insulating (nonconducting) medium when used in a signal-carrying design.
- Digital Signal
An electrical signal which possesses two distinct states(on/off, positive/negative).
Abt undesired change in a wave from or signal.
|Wiring your home or office? Need input from friends & colleagues? Go social by clicking on your favorite social networking tool below.