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Fresnel Zone Calculator
Calculate Fresnel zone radius for radio propagation
📖 Fresnel Zone
The Fresnel Zone estimates the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy. It multiplies several factors: star formation rate, fraction with planets, habitable planets per star, etc.
📊 Result
💡 Tips & Information
- Formula: r = √(nλd₁d₂/(d₁+d₂))
- First zone (n=1) is most important
- Measured in meters
- Obstructions cause signal loss
- Used in wireless link planning