1. A signal that has a continuous nature rather than a pulsed or discrete nature.
Note: Electrical or physical analogies, such as continuously varying voltages, frequencies, or phases, may be used as analog signals.
2. A nominally continuous electrical signal that varies in some direct correlation with another signal impressed on a transducer.
Note: For example, an analog signal may… (Read More →)

The data link that provides an interface to signaling terminals and is made up of voice-frequency analog transmission channels and modems. [T1.11
0. 2-1992]

Switching equipment designed, designated, or used to connect circuits between users for real-time transmission of analog signals.

Transmission of a continuously varying signal as opposed to transmission of a discretely varying signal.

Synonym analog-to-digital converter (ADC).

Synonym analog-to-digital converter (ADC).

A device that converts an analog signal to a digital signal that represents equivalent information. Synonyms analog-to-digital (A-D) coder, analog-to-digital (A-D) encoder.

An attempt to break a code or to find a key using analytical methods.
Note: Examples of an analytical attack are: a statistical analysis of patterns; a search for flaws in an encryption algorithm. [2382-pt.8] Synonym cryptanalytical attack.

Modulation in which the phase or frequency of a sinusoidal carrier is varied.
Note: Phase and frequency modulation are particular forms of angle modulation.

In optics, the net angular deflection experienced by a light ray after one or more refractions or reflections.