Encyclopedia : 8 : 8 : 80M (4 articles)

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80 meters
In telecommunications, 80 meters is a shortwave radio band used by amateur radio operators. The band spans frequencies from 3.5 to 4.0 MHz, at most, although only a small number of countries permit amateur radio activity on the whole 500 kHz. Contents 1 Summary2 Frequency allocation2.1..

 

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