What frequency range is the High Frequency band?

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What frequency range is the High Frequency band?
« on: May 08, 2015, 11:43:58 AM »
What frequency range is the High Frequency band?

Options are

A.    100 kHz
B.    1 GHz
C.    30 to 300 MHz
D.    3 to 30 MHz

Answer

D.    3 to 30 MHz

Information

The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.