*Question G9D12:
What is the common name of a dipole with a single central support?*  

*Correct Answer is  A: Inverted V*  

### AI Response: (may contain errors)  

A dipole with a single central support is commonly known as an **Inverted V**. Here's why:

1. **Correct Answer: Inverted V**
   - An Inverted V antenna is a type of dipole where the center is elevated, and the two ends are sloped downwards towards the ground. This configuration uses a single central support, such as a mast or pole, to hold up the center of the antenna, forming a "V" shape when viewed from the side.

2. **Why the Other Choices are Incorrect:**
   - **Inverted L**: This is an antenna configuration where one part of the wire is vertical, and the other part is horizontal, forming an "L" shape. It typically requires two supports, one for the vertical section and one for the horizontal section.
   - **Sloper**: A sloper antenna is a type of wire antenna that is sloped at an angle, usually from a high point to a lower point. It generally requires more than one support and is not characterized by a central support.
   - **Lazy H**: This is a type of wire antenna that consists of two horizontal dipoles fed in phase. It resembles the letter "H" and requires multiple supports, not just a single central one.

In summary, the Inverted V is unique in its use of a single central support, making it distinct from the other configurations listed.