HB3YAQLucerne
HB3YAQ · YOUR LEARNING PATH
Understand your first antenna
From purpose through dipole and groundplane to a reasoned design. With drawings, prepared calculations and six knowledge checks.
6 stepsAbout 30–40 minutesNo prior knowledge
- Overall length L
- 0.982 m
- Each arm
- 0.491 m
From observation to understanding.
Plan an antenna on paper, calculate starting dimensions and learn what SWR means. Exercises use the existing calculators and labelled schematics. No construction or transmission is required.
You only need a browser. Read at your own pace, use the linked explanations and return here. The time estimate includes short exercises; further reading takes extra time. Every step is freely accessible.
Start with the purpose
Frequency, installation and polarisation guide the plan.
About 5 min · Explanation + exercise + knowledge checkTurn frequency into length
Use units and distinguish wavelength from conductor length.
About 5 min · Explanation + exercise + knowledge checkDivide the dipole
Two arms and a central feed point.
About 5 min · Explanation + exercise + knowledge checkInclude the return path
A quarter-wave radiator needs a conducting reference plane.
About 5 min · Explanation + exercise + knowledge checkSeparate SWR from loss
A good match alone does not prove good efficiency.
About 5 min · Explanation + exercise + knowledge checkExplain your design
Combine calculation, installation and verification into a plan.
About 5 min · Explanation + exercise + knowledge check
Your learning path— / 6
- Start with the purpose
- Turn frequency into length
- Divide the dipole
- Include the return path
- Separate SWR from loss
- Explain your design
After a check, progress is saved only in this browser. No account and no transmission to the server.
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