*Question G9B08:
How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?*  

*Correct Answer is  A: It steadily increases*  

### AI Response: (may contain errors)  

The feed point impedance of a 1/2 wave dipole antenna changes as the feed point is moved from the center toward the ends. Here's a breakdown of the correct answer and the reasoning behind it:

### Correct Answer: It steadily increases

1. **Why the correct answer is correct:**
   - The feed point impedance of a 1/2 wave dipole is approximately 73 ohms at the center. As you move the feed point toward the ends, the impedance increases due to the changing current distribution along the antenna. Near the ends, the current is lower, and the impedance rises significantly, often exceeding 200 ohms at the very ends.

### Why the other choices are incorrect:

2. **Choice A: It steadily increases**
   - This is the correct choice, as explained above.

3. **Choice B: It steadily decreases**
   - This is incorrect because moving toward the ends of the dipole does not decrease the impedance; it actually increases it.

4. **Choice C: It peaks at about 1/8 wavelength from the end**
   - This is misleading. While the impedance does change and can peak at certain points, the general trend is that it increases as you approach the ends, rather than peaking at a specific point.

5. **Choice D: It is unaffected by the location of the feed point**
   - This is incorrect because the feed point impedance is very much affected by where you connect the feed line. The impedance varies significantly based on the feed point location.

### Useful Formulas or Rules of Thumb:

- The feed point impedance of a center-fed 1/2 wave dipole is approximately 73 ohms.
- As you move the feed point toward the ends, the impedance can be modeled as increasing, often exceeding 200 ohms near the ends.

This understanding is crucial for antenna matching and ensuring efficient power transfer in your amateur radio setup.