Abbreviation for radio teletypewriter.

A clock containing a quartz oscillator stabilized by a rubidium standard.

A frequency standard in which a specified hyperfine transition of electrons in rubidium-87 atoms is used to control the output frequency.
Note: A rubidium standard consists of a gas cell, which has an inherent long-term instability. This instability relegates the rubidium standard to its status as a secondary standard.

A security policy based on global rules imposed for all users. These rules usually rely on a comparison of the sensitivity of the resources being accessed and the possession of corresponding attributes of users, a group of users, or entities acting on behalf of users [7498-2].

The execution of one or more computer jobs or programs.

A redundancy-reduction technique for facsimile in which a run of consecutive picture elements having the same state (gray scale or color) is encoded into a single code word.

A public radio service rendered by fixed stations on frequencies below 1000 MHz used to provide (1) Basic Exchange Telecommunications Radio Service, which is public message communication service between a central office and subscribers located in rural areas, (2) public message communication service between landline central offices and different exchange areas which it is impracticable to interconnect by any other… (Read More →)

1. A fixed station in the rural radio service used by a subscriber for communication within a central office station.
2. One or more fixed transmitters in the rural radiotelephone service that receive service from central office transmitters. [47CFR]

Abbreviation for radio and wire integration.

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