Top Definition
Frequencies between 3 MHz and 30 MHz (3 Mega Hertz and 30 Mega Hertz). Used by governments, ships, radio stations and amateur radio operators.
I decided to use the High Frequency (HF) radio last night and try my luck at reaching Japan.
by Tomorrow's World October 20, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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