TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

SIMPLEX CANAL UNICO [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-11-18

English

Subject field(s)
  • Air Navigation Aids
  • Telecommunications
DEF

A method in which telecommunication between two stations takes place in one direction at a time.

OBS

In application to the aeronautical mobile service, this method may be subdivided as follows: a) single channel simplex; b) double channel simplex; c) offset frequency simplex.

OBS

simplex: term and definition officially approved by the International Civil Aviation Organization (ICAO).

OBS

In civil aviation, very high frequency (VHF) amplitude modulated (AM) radio is typically used for radio voice communication between personnel in the cockpit and personnel in the air traffic control tower. VHF AM radio utilizes "simplex" (also called "half duplex") mode: i.e. a particular channel is used for both sides of a two-way conversation, and only one party can talk at a time (also known as "two way radio").

OBS

Two definitions have arisen over time: a common definition, which is used as an ANSI [American National Standards Institute] standard and elsewhere, and an ITU-T [International Telecommunication Union - Telecommunication Standardization Sector] definition. The ITU definition of simplex is termed "half duplex" in other contexts.

OBS

According to ANSI standard, simplex also refers to communication that occurs in one direction only, from one device to the next. In the simplex mode, one of the devices can transmit but cannot receive, or it receives but does not transmit. The half-duplex mode indicates a transmission in either direction, but it can take place in only one direction at a time.

Key term(s)
  • half-duplex

French

Domaine(s)
  • Aides à la navigation aérienne
  • Télécommunications
DEF

Méthode suivant laquelle les communications entre deux stations ont lieu dans un sens à la fois.

OBS

Appliquée au service mobile aéronautique, cette méthode peut se subdiviser comme suit : a) simplex sur voie unique; b) simplex sur deux voies; c) simplex sur fréquences décalées.

OBS

simplex : terme et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Ayuda para la navegación aérea
  • Telecomunicaciones
DEF

Método en el cual las telecomunicaciones entre dos estaciones se efectúan cada vez en un solo sentido.

OBS

En su aplicación al servicio móvil aeronáutico, este método puede subdividirse en la forma siguiente : a) simplex de canal único; b) simplex de doble canal; c) simplex de frecuencia aproximada.

OBS

símplex: término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 1

Record 2 2002-02-01

English

Subject field(s)
  • Air Navigation Aids
  • Radiotelephony
DEF

Simplex using the same frequency channel in each direction.

OBS

single channel simplex: term and definition officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Aides à la navigation aérienne
  • Radiotéléphonie
DEF

Simplex utilisant la même voie de fréquence dans les deux sens.

OBS

simplex sur voie unique; simplex sur canal unique : termes et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Ayuda para la navegación aérea
  • Radiotelefonía
DEF

Método símplex que usa el mismo canal de frecuencia en cada sentido.

OBS

símplex de canal único : término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional(OACI).

Save record 2

Record 3 2001-04-17

English

Subject field(s)
  • Wireless Telegraphy
  • Air Transport
DEF

A variation of single channel simplex wherein telecommunication between two stations is effected by using in each direction frequencies that are intentionally slightly different but contained within a portion of the spectrum allotted for the operation.

OBS

offset frequency simplex: term officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Radiotélégraphie
  • Transport aérien
DEF

Variante du simplex sur (voie) unique, suivant laquelle deux ou plusieurs stations radiotélégraphiques aéronautiques utilisent intentionnellement des fréquences légèrement différentes mais faisant partie de la portion du spectre assignée aux communications en question.

OBS

simplex sur fréquences : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Radiotelegrafía
  • Transporte aéreo
DEF

Variedad del sistema símplex de canal único en el cual las telecomunicaciones entre dos estaciones se efectúan usando, en cada uno de los sentidos, frecuencias que intencionadamente difieren ligeramente pero que están comprendidas dentro de la porción del espectro asignada para esta operación.

OBS

símplex de frecuencia aproximada : término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 3

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