FCC Question Pool Review

General Class (Element 3) • 2023-2027

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Question G3A05

From subelement G3 - G3A

G3A05
Answer: D

What is the solar flux index?

AA measure of the highest frequency that is useful for ionospheric propagation between two points on Earth
BA count of sunspots that is adjusted for solar emissions
CAnother name for the American sunspot number
DA measure of solar radiation with a wavelength of 10.7 centimeters