selective calling

selective calling
   The ability of the transmitting station to specify which of several stations on the same line is to receive a message.

IT glossary of terms, acronyms and abbreviations. . 2015.

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  • Selective calling — SECAL redirects here. For the French wine grape also known as Secal, see Jurançon (grape). In a conventional, analog two way radio system, a standard radio has noise squelch or carrier squelch which allows a radio to receive all transmissions.… …   Wikipedia

  • selective calling system — An automatic signaling system used in aircraft to notify the pilot that the aircraft is receiving a call. Each aircraft operated by an airline is assigned a particular four tone combination for identification purposes. A ground station keys the… …   Aviation dictionary

  • Digital Selective Calling — (DSC; Digitaler Selektivruf) ist ein Anrufverfahren im Seefunk, das alternativ zum Sprechfunk Anruf benutzt wird. Ein Anruf dient dem Herstellen einer Funkverbindung mit einer bestimmten Funkstelle, allen erreichbaren Funkstellen (all… …   Deutsch Wikipedia

  • Digital Selective Calling — A stationary VHF DSC unit Digital Selective Calling or DSC is a standard for sending pre defined digital messages via the medium frequency (MF), high frequency (HF) and very high frequency (VHF) maritime radio systems. It is a core part of the… …   Wikipedia

  • Selective Service Act — A federal statute authorizing a draft for military service, that is, imposing compulsory military service and providing the means for calling men to the service. 50 USC Appx §§ 451 et seq …   Ballentine's law dictionary

  • Squelch — In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal. Contents 1 Carrier squelch 2 Tone squelch and selective calling 2.1 …   Wikipedia

  • Global Maritime Distress Safety System — The Global Maritime Distress and Safety System (GMDSS) is an internationally agreed upon set of safety procedures, types of equipment, and communication protocols used to increase safety and make it easier to rescue distressed ships, boats and… …   Wikipedia

  • Marine VHF radio — A standard handheld maritime VHF, mandatory on larger vessels under the GMDSS rules …   Wikipedia

  • Automatic link establishment — Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF (High Frequency) radio communications.cite web|title=Frequency Agile Systems in the MF/HF Bands |author=Telecom… …   Wikipedia

  • MDC-1200 — Listen filename=Trucking w leading PTT ID using MDC1200.ogg title=MDC 1200 sounds description=leading push to talk ID with data muting. format=OggListen filename=TRucking leading PTT ID MDC1200 non Motorola recvr.ogg title=MDC 1200 sounds… …   Wikipedia

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