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Frage 127

What frequency range is referred to as HF?

  1. 300 to 3000 MHz
  2. 30 to 300 MHz
  3. 3 to 30 MHzRichtige Antwort
  4. 300 to 3000 kHz

Erklärung

HF means high frequency and is defined as 3 MHz to 30 MHz, the range that supports regular long-distance ionospheric propagation. The 300 to 3000 kHz range is MF, not HF.

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Frage 127: What frequency range is referred to as HF? · FCC Technician Class (Element 2) · Questena