← Learning path overview
STEP 06 / 06 · ABOUT 5 MIN

Explain your design

Combine calculation, installation and verification into a plan.

Plan a centre-fed dipole as a learning example for 145 MHz with k = 0.95. Write down both arm lengths, feed point and planned feed line. Explain why final dimensions require measurement in the actual installation.

Calculate first, then answer the final question. The numerical check below accepts 49.1 cm per arm with a rounding tolerance of 0.5 cm. It verifies the calculation and understanding, not a built antenna’s performance.

Your turn.

Enter one arm’s length in centimetres. Then pass the comprehension question; all six steps must be completed to finish the path.

Open the final calculation →
UNDERSTAND & APPLY

Your final check

Check your inputs, then answer the question.

What follows the theoretical length calculation?

Sources & further documentation

Your learning path— / 6
  1. Start with the purpose
  2. Turn frequency into length
  3. Divide the dipole
  4. Include the return path
  5. Separate SWR from loss
  6. Explain your design

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