TERMIUM Plus®

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

SKY WAVES [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-07-11

English

Subject field(s)
  • Telecommunications
  • Radio Waves
  • Radio Transmission and Reception
DEF

The fading of a received signal caused by different wave components traveling along slightly different paths.

CONT

Interference fading : As [the] name indicates, it is the fading produced because of upper and lower rays of the sky wave interfering with each other. This is the most serious fading. It is also produced due to the interference between a ground wave and a sky wave or between sky waves reaching [a] receiver by different paths or different number of hops. For a single sky wave frequency, interference fading takes place due to the fluctuations in the height of the ionospheric layer or due to the variation in the ionic density of the layer.

French

Domaine(s)
  • Télécommunications
  • Ondes radioélectriques
  • Émission et réception radio

Spanish

Campo(s) temático(s)
  • Telecomunicaciones
  • Ondas radioeléctricas
  • Radiotransmisión y radiorrecepción
DEF

Desvanecimiento que surge de una variación en las fases relativas de ondas de amplitudes similares.

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Record 2 2009-07-31

English

Subject field(s)
  • Radio Transmission and Reception
  • Telecommunications Facilities
DEF

An antenna that confines radiation mainly to small angles of elevation, to minimize radiation of the sky waves which cause fading.

Key term(s)
  • anti-fading antenna

French

Domaine(s)
  • Émission et réception radio
  • Installations de télécommunications
DEF

Antenne d'émission radio dont le lobe principal du diagramme de rayonnement dans le plan vertical est presque horizontal pour limiter la propagation de l'onde de ciel et les évanouissements dus à celle-ci.

Spanish

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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