In electromagnetic wave propagation, phase-interference fading caused by multipath, and which may be approximated by the Rayleigh distribution.

Of an electromagnetic wave propagating in a material medium, scattering caused by refractive-index inhomogeneities that are small compared to the wavelength.
Note 1: Rayleigh scattering losses vary as the reciprocal of the fourth power of the wavelength.
Note 2: Ionospheric scattering is caused partly by Rayleigh scattering.

Acronym for Regional Bell Operating Company.

Abbreviation for radio common carrier.

Return Data Channel

Abbreviation for radio direction-finding.

1. [A] fundamental operation in an information system (IS) that results only in the flow of information from an object to a subject. [INFOSEC-99]
2. A fundamental operation that results only in the flow of information from an object to a subject [POSIX.6].
3. A fundamental operation that results only in the flow of information from an object to a… (Read More →)

1. In computer or data processing technology, the privilege (or capability) of reading electronically the information in a file or data base, without the privilege (or capability) to modify it. Synonym read-only access.
2. [In INFOSEC,] permission to read information in an information system (IS). [INFOSEC-99]
3. Permission to read information [TCSEC].

A magnetic head capable of reading only.

See read access.