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High Frequency (HF)
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
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