Fresnel Zone Calculator
Calculate Fresnel zone radius for RF wireless links. Determines clearance requirements for zones 1-3 and minimum 60% first Fresnel zone clearance for reliable line-of-sight links.
How to Use Fresnel Zone Calculator
Enter the operating frequency, total link distance, and obstacle position (as percentage from transmitter). Click Calculate to see Fresnel zone radii for zones 1-3 and the minimum clearance requirement (60% of first zone).
Step-by-Step Instructions
- Enter the operating frequency (MHz or GHz)
- Enter the total link distance (km, mi, or m)
- Set obstacle position as % from transmitter
- Click Calculate Fresnel Zone for results
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