High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). … High frequency. Frequency range3 to 30 MHzWavelength range100 to 10 mHigh frequency – Wikipedia en.wikipedia.org › wiki › High_frequency
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High frequency (HF) is an electromagnetic frequency defined by the International Telecommunications Union (ITU) for radar and radio communications . It operates in a range of three to thirty MHz and as the wavelengths spread over ten to one hundred meters, it is also known as decameter wave and designated as band 7.
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