The maximum usable frequency of an ionospheric layer at 60 incidance – McqOptions

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1.	The maximum usable frequency of an ionospheric layer at 60 incidance and with 8 MHz. The critical frequency is
A.	16 MHz
B.	16/
C.	MHz
D.	8 MHz
E.	Approx. 6.93 MHz
Answer» B. 16/

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