DGCA AME Practice Test & Exam Prep | India

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If the critical frequency of an ionospheric layer is 5 MHz and a radio wave is incident on the layer at an angle of 60 degrees to the vertical, what is the Maximum Usable Frequency (MUF) for skywave transmission?

10.0 MHz 8.66 MHz 5.77 MHz 2.50 MHz

Correct Answer:

10.0 MHz

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