What is the common name of a dipole with a single central support?
The correct answer is A: Inverted V. The common name of a dipole with a single central support is Inverted V. An Inverted V is a dipole bent into a V shape with the apex (center) supported by a single point. For amateur radio operators, this is a popular antenna configuration. Understanding this helps when identifying antenna types.
Exam Tip
Dipole with single central support = Inverted V. Think 'I'nverted 'V' = 'I'nverted 'V' shape with 'S'ingle support. An Inverted V is a dipole bent into V shape with apex (center) supported by single point. Not Inverted L, not Sloper, not Lazy H - just Inverted V.
Memory Aid
"Dipole with single central support = Inverted V. Think 'I'nverted 'V' = 'I'nverted 'V' shape. An Inverted V is a dipole bent into V shape with apex supported by single point. Popular antenna configuration."
Real-World Application
An Inverted V antenna: A dipole is bent into a V shape, with the center (apex) supported by a single point (e.g., a mast). The ends are lower, creating an inverted V shape. This is a popular configuration - easier to install than a horizontal dipole because it only needs one support point. This is the Inverted V.
Key Concepts
Why Other Options Are Wrong
Option B (Inverted L): Incorrect. Inverted L is a vertical with horizontal top section, not a dipole with central support - Inverted V is the dipole. Inverted L is different.
Option C (Sloper): Incorrect. Sloper is a wire antenna sloped from high to low, not a dipole with central support - Inverted V is the dipole. Sloper is different.
Option D (Lazy H): Incorrect. Lazy H is a different antenna configuration, not a dipole with central support - Inverted V is the dipole. Lazy H is different.
题目解析
The correct answer is A: Inverted V. The common name of a dipole with a single central support is Inverted V. An Inverted V is a dipole bent into a V shape with the apex (center) supported by a single point. For amateur radio operators, this is a popular antenna configuration. Understanding this helps when identifying antenna types.
考试技巧
Dipole with single central support = Inverted V. Think 'I'nverted 'V' = 'I'nverted 'V' shape with 'S'ingle support. An Inverted V is a dipole bent into V shape with apex (center) supported by single point. Not Inverted L, not Sloper, not Lazy H - just Inverted V.
记忆口诀
Dipole with single central support = Inverted V. Think 'I'nverted 'V' = 'I'nverted 'V' shape. An Inverted V is a dipole bent into V shape with apex supported by single point. Popular antenna configuration.
实际应用示例
An Inverted V antenna: A dipole is bent into a V shape, with the center (apex) supported by a single point (e.g., a mast). The ends are lower, creating an inverted V shape. This is a popular configuration - easier to install than a horizontal dipole because it only needs one support point. This is the Inverted V.
错误选项分析
Option B (Inverted L): Incorrect. Inverted L is a vertical with horizontal top section, not a dipole with central support - Inverted V is the dipole. Inverted L is different. Option C (Sloper): Incorrect. Sloper is a wire antenna sloped from high to low, not a dipole with central support - Inverted V is the dipole. Sloper is different. Option D (Lazy H): Incorrect. Lazy H is a different antenna configuration, not a dipole with central support - Inverted V is the dipole. Lazy H is different.
知识点
Dipole, Single central support, Inverted V, Antenna configuration
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.