Deep Dive: E3B07
The correct answer is C: The distance covered by each hop increases. What effect does lowering a signal's transmitted elevation angle have on ionospheric HF skip propagation is that the distance covered by each hop increases. Lower elevation angles result in longer skip distances. For amateur radio operators, this is important for HF operation. Understanding this helps when optimizing antenna elevation.
Why Other Answers Are Wrong
Option A: Incorrect. Faraday rotation doesn't become stronger - lowering elevation increases hop distance. Faraday rotation isn't the effect. Option B: Incorrect. MUF doesn't decrease - lowering elevation increases hop distance. MUF decrease isn't the effect. Option D: Incorrect. Critical frequency doesn't increase - lowering elevation increases hop distance. Critical frequency increase isn't the effect.
Exam Tip
Lower elevation angle effect = distance covered by each hop increases. Think 'L'ower 'E'levation = 'L'onger 'E'ach hop. Lower elevation angles result in longer skip distances. Not Faraday rotation, not MUF decrease, not critical frequency - just longer hop distance.
Memory Aid
Lower elevation angle effect = distance covered by each hop increases. Think 'L'ower 'E'levation = 'L'onger hop. Lower elevation angles result in longer skip distances. Important for HF operation.
Real-World Example
Lowering a signal's transmitted elevation angle: The distance covered by each hop increases. A lower elevation angle means the signal takes off at a shallower angle, bounces off the ionosphere at a greater distance, and covers more ground per hop. This is the effect - longer hop distance with lower elevation.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E3B
Reference: 2024-2028 Question Pool · E3 - Radio Wave Propagation
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E3B topic.