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E3A13:Which of these emission modes is best for auroral propagation?

E3A13E3A

Which of these emission modes is best for auroral propagation?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E3A13 is CW.

The key fact is CW. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in E3A

E3A01What is the approximate maximum separation measured along the surface of the Earth between two stations communicating by EME?E3A02What characterizes libration fading of an EME signal?E3A03When scheduling EME contacts, which of these conditions will generally result in the least path loss?E3A04In what direction does an electromagnetic wave travel?E3A05How are the component fields of an electromagnetic wave oriented?E3A06What should be done to continue a long-distance contact when the MUF for that path decreases due to darkness?