To build a J-Pole antenna for the GMRS frequency of 462.000 MHz using inches for measurements, follow these instructions:

### Materials Needed
1. **1/2 inch copper pipe** (length depends on the measurements below)
2. **Copper pipe caps** (2)
3. **Copper pipe elbows** (1)
4. **Brass or copper rod** (optional for fine-tuning)
5. **Coaxial cable (RG-58 or RG-8x)**
6. **Soldering tools**
7. **Mounting hardware**

### Tools Needed
1. **Tape measure**
2. **Pipe cutter**
3. **Soldering iron and solder**
4. **Drill**
5. **Antenna analyzer or SWR meter**

### Measurements
To calculate the lengths for the J-Pole antenna for 462.000 MHz in inches, we'll convert the metric measurements from the previous instructions.

#### Wavelength (?)
\[ \lambda = \frac{299,792,458 \, \text{meters/second}}{462,000,000 \, \text{Hz}} \approx 0.649 \, \text{meters} \]

#### Conversion
1 meter = 39.3701 inches

\[ 0.649 \, \text{meters} \approx 25.55 \, \text{inches} \]

#### Element Lengths
1. **Radiator (vertical section)**:
   - \[ \text{Length} = \frac{3}{4} \times \lambda \approx \frac{3}{4} \times 25.55 \approx 19.16 \, \text{inches} \]
2. **Matching section (shorter vertical section)**:
   - \[ \text{Length} = \frac{1}{4} \times \lambda \approx \frac{1}{4} \times 25.55 \approx 6.39 \, \text{inches} \]

### Assembly Instructions
1. **Cut the Copper Pipes**:
   - Cut one piece of copper pipe to 19.16 inches for the radiator.
   - Cut another piece of copper pipe to 6.39 inches for the matching section.
   - Cut a small piece to connect the two vertical sections, approximately 1-1.5 inches (or use a copper elbow).

2. **Assemble the J-Pole**:
   - Attach the 19.16-inch radiator to one side of the copper elbow.
   - Attach the 6.39-inch matching section to the other side of the elbow.
   - Attach a short piece of copper pipe to the bottom of the matching section to act as the base.
   - Solder all connections for stability and conductivity.

3. **Attach the Coaxial Cable**:
   - Drill a small hole at the correct height on the radiator section for the coaxial cable's center conductor. This height is typically a few inches above the base, around 2-3 inches (you may need to fine-tune this based on SWR readings).
   - Solder the center conductor of the coaxial cable to the hole.
   - Solder the coaxial cable's shield to the bottom of the matching section (the base).

4. **Check SWR and Fine-Tune**:
   - Use an SWR meter or antenna analyzer to check the antenna's performance.
   - Adjust the height of the feed point (where the coaxial cable connects) slightly if needed to achieve the lowest SWR at 462 MHz.

5. **Seal and Mount**:
   - Seal all exposed soldered joints with weatherproofing materials.
   - Mount the antenna in a high, clear location for the best performance.

### Diagram (Optional)
Creating a simple diagram will help visualize the J-Pole construction. You can find many J-Pole diagrams online that illustrate the placement of the radiator, matching section, and feed points.

### Safety Note
Always be careful when working with soldering tools and ensure that the antenna is mounted securely to prevent accidents.

By following these instructions and using the specified measurements in inches, you should have a functional J-Pole antenna tuned to the GMRS frequency of 462.000 MHz.