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LUHF [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-01-29

English

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

In radio transmission, the lowest frequency effective at a specified time for ionospheric propagation of radio waves between any two points, excluding frequencies below several megahertz.

OBS

[The lowest usable high frequency] is determined by such factors as absorption, transmitter power, antenna gain, receiver characteristics, type of service, and noise conditions.

OBS

The high frequency band is set between 3 to 30 MHz.

French

Domaine(s)
  • Ondes radioélectriques
  • Transmission (Télécommunications)

Spanish

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