Common uses for VHF are FM radio broadcasting, television broadcasting, land mobile stations (emergency, business, private use and military), long range data communication up to several tens of kilometres with radio modems, amateur radio, and marine communications.
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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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