Atmospheric noise becomes less severe at frequencies A. above 30 MHz B. below 30 MHz C. above 3000 kHz D. below 3000kHz

Atmospheric noise becomes less severe at frequencies
A. above 30 MHz
B. below 30 MHz
C. above 3000 kHz
D. below 3000kHz
by

1 Answer

Answer :

A. above 30 MHz
by

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