At what time of day is transequatorial propagation most likely to occur?
The correct answer is C: Afternoon or early evening. At what time of day is transequatorial propagation most likely to occur is afternoon or early evening. TEP is most common during afternoon/early evening hours. For amateur radio operators, this is important for TEP operation. Understanding this helps when operating TEP.
Exam Tip
TEP time of day = afternoon or early evening. Think 'T'EP = 'T'ypically 'E'vening 'P'ropagation. TEP is most common during afternoon/early evening hours. Not morning, not noon, not late night - just afternoon/early evening.
Memory Aid
"TEP time of day = afternoon or early evening. Think 'T'EP = 'A'fternoon/'E'vening. TEP is most common during afternoon/early evening hours. Important for TEP operation."
Real-World Application
Transequatorial propagation: It's most likely to occur during afternoon or early evening hours. This is when the ionospheric conditions are optimal for TEP. Morning, noon, and late night are less favorable. This is the time - afternoon or early evening.
Key Concepts
Why Other Options Are Wrong
Option A (Morning): Incorrect. Morning isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Morning isn't the time.
Option B (Noon): Incorrect. Noon isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Noon isn't the time.
Option D (Late at night): Incorrect. Late at night isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Late night isn't the time.
题目解析
The correct answer is C: Afternoon or early evening. At what time of day is transequatorial propagation most likely to occur is afternoon or early evening. TEP is most common during afternoon/early evening hours. For amateur radio operators, this is important for TEP operation. Understanding this helps when operating TEP.
考试技巧
TEP time of day = afternoon or early evening. Think 'T'EP = 'T'ypically 'E'vening 'P'ropagation. TEP is most common during afternoon/early evening hours. Not morning, not noon, not late night - just afternoon/early evening.
记忆口诀
TEP time of day = afternoon or early evening. Think 'T'EP = 'A'fternoon/'E'vening. TEP is most common during afternoon/early evening hours. Important for TEP operation.
实际应用示例
Transequatorial propagation: It's most likely to occur during afternoon or early evening hours. This is when the ionospheric conditions are optimal for TEP. Morning, noon, and late night are less favorable. This is the time - afternoon or early evening.
错误选项分析
Option A (Morning): Incorrect. Morning isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Morning isn't the time. Option B (Noon): Incorrect. Noon isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Noon isn't the time. Option D (Late at night): Incorrect. Late at night isn't when TEP is most likely - afternoon/early evening is when TEP occurs. Late night isn't the time.
知识点
Transequatorial propagation, Time of day, Afternoon or early evening, TEP timing
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.