What does VOACAP software model?
The correct answer is C: HF propagation. What does VOACAP software model is HF propagation. VOACAP (Voice of America Coverage Analysis Program) models HF propagation. For amateur radio operators, this is important for propagation prediction. Understanding this helps when using propagation prediction tools.
Exam Tip
VOACAP models = HF propagation. Think 'V'OACAP = 'V'oice of 'A'merica 'C'overage 'A'nalysis 'P'rogram (HF). VOACAP (Voice of America Coverage Analysis Program) models HF propagation. Not AC voltage, not VHF, not AC current - just HF propagation.
Memory Aid
"VOACAP models = HF propagation. Think 'V'OACAP = 'H'F propagation. VOACAP (Voice of America Coverage Analysis Program) models HF propagation. Important for propagation prediction."
Real-World Application
VOACAP software: It models HF propagation. VOACAP (Voice of America Coverage Analysis Program) is used to predict HF propagation paths, signal strength, and coverage areas. This is what VOACAP models - HF propagation.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. AC voltage and impedance isn't what VOACAP models - VOACAP models HF propagation. AC voltage isn't VOACAP.
Option B: Incorrect. VHF radio propagation isn't what VOACAP models - VOACAP models HF propagation. VHF isn't VOACAP.
Option D: Incorrect. AC current and impedance isn't what VOACAP models - VOACAP models HF propagation. AC current isn't VOACAP.
题目解析
The correct answer is C: HF propagation. What does VOACAP software model is HF propagation. VOACAP (Voice of America Coverage Analysis Program) models HF propagation. For amateur radio operators, this is important for propagation prediction. Understanding this helps when using propagation prediction tools.
考试技巧
VOACAP models = HF propagation. Think 'V'OACAP = 'V'oice of 'A'merica 'C'overage 'A'nalysis 'P'rogram (HF). VOACAP (Voice of America Coverage Analysis Program) models HF propagation. Not AC voltage, not VHF, not AC current - just HF propagation.
记忆口诀
VOACAP models = HF propagation. Think 'V'OACAP = 'H'F propagation. VOACAP (Voice of America Coverage Analysis Program) models HF propagation. Important for propagation prediction.
实际应用示例
VOACAP software: It models HF propagation. VOACAP (Voice of America Coverage Analysis Program) is used to predict HF propagation paths, signal strength, and coverage areas. This is what VOACAP models - HF propagation.
错误选项分析
Option A: Incorrect. AC voltage and impedance isn't what VOACAP models - VOACAP models HF propagation. AC voltage isn't VOACAP. Option B: Incorrect. VHF radio propagation isn't what VOACAP models - VOACAP models HF propagation. VHF isn't VOACAP. Option D: Incorrect. AC current and impedance isn't what VOACAP models - VOACAP models HF propagation. AC current isn't VOACAP.
知识点
VOACAP software, Model, HF propagation, Propagation prediction
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.