TERMIUM Plus®

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SUBJECT ATMOSPHERIC DISTURBANCES [1 record]

Record 1 2007-12-06

English

Subject field(s)
  • Meteorology
  • Telecommunications Transmission
CONT

Since the NDB is a low frequency, amplitude modulated radio station; it is subject to atmospheric disturbances that effect range and bearing accuracy. These can be lightning, precipitation static and sunspot activity.

CONT

Radio is also subject to atmospheric disturbances. It produces static, and its signals tend to fade.

CONT

Air quality research is an important focus of the research units across the Interior Western U.S. Research areas include: understanding changes in alpine and forest ecosystems subject to atmospheric disturbances, such as air pollution, with emphasis on wilderness area impacts.

French

Domaine(s)
  • Météorologie
  • Transmission (Télécommunications)
CONT

[...] bien que disposant d'une radio [...] pour écouter les OC je préfère les écouter sur Internet, la qualité est bien meilleure et on n'est pas sujet aux perturbations atmosphériques.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Transmisión (Telecomunicaciones)
CONT

Las transmisiones radiales estaban sujetas a perturbaciones atmosféricas puesto que las ondas, en su desplazamiento, chocaban con la ionósfera de donde rebotaban para volver a la tierra.

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