R/C Transmitter

A transmitter that operates or is intended to operate at a station authorized in the R/C service. R/C may stand for Radio Control or Remote Control.

R/N

Received/Not Received

R-17OA

A document prepared by the Electronics Industries Association describing recommended practices for NTSC color TV signals in the United States. The changes from RS-170 involve pulse timing parameters.

RAA

Rural Allocation Area

RAB

Random Access Burst

RACE

See: Research In Advanced Communications In Europe

Race I

Research Of Advanced Communication Technologies In Europe

RACES

Radio Amateur Civil Emergency Service

Raceway

A covered trough or channel for internal wiring and cabling.

RACH

See: Random Access Channel

Rack

An equipment rack, usually measuring 19 inches (48.26 cm) wide at the front mounting rails.

RACON

See: Radar Beacon

Racon Station

A radionavigation land station which employs a racon. A racon ( radar beacon) is a transmitter-receiver associated with a fixed navigational mark, which when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information.

RAD

Rapid Application Development

Rad

The unit used to measure the absorption of ionizing radiation.

Radar

See: Radio Detection And Ranging

Radar Beacon (RACON)

A transmitter-receiver associated with a fixed navigational mark which, when triggered by radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information.

A receiver transmitter which, when triggered by a radar, automatically...