E3B03: At what time of day is transequatorial propagation most likely to occur

Q: At what time of day is transequatorial propagation most likely to occur?

The correct answer is C: Afternoon or early evening. 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.

Updated: Dec 9, 2025 | Source: 2024-2028 Question Pool | Topic: E3B

E3B03E3B

At what time of day is transequatorial propagation most likely to occur?

Previous Next

Deep Dive: E3B03

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.

Why Other Answers 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.

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 Example

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.

Source & Coverage

Question Pool: 2024-2028 Question Pool

Subelement: E3B

Reference: 2024-2028 Question Pool · E3 - Radio Wave Propagation

Key Concepts

Transequatorial propagation Time of day Afternoon or early evening TEP timing

Verified Content

Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E3B topic.