learn.howToCalculate
learn.whatIsHeading
Calculates first Fresnel zone radius for wireless links. Ensures line-of-sight clearance for optimal signal strength.
सूत्र
Formula: radius = 548 × √(d ÷ (4 × f))
चरण-दर-चरण मार्गदर्शिका
- 1Distance between transmitter and receiver (d)
- 2Frequency in GHz (f)
- 3Formula: radius = 548 × √(d ÷ (4 × f))
- 4Typical target: 60% first zone clearance
- 5Formula varies by distance units
हल किए गए उदाहरण
इनपुट
Distance 1km, freq 900MHz
परिणाम
Radius 8.2m
सामान्य गलतियां जिनसे बचना है
- ✕Ignoring Fresnel zone and assuming straight line-of-sight
- ✕Not accounting for earth bulge over long distances
अक्सर पूछे जाने वाले प्रश्न
Why is Fresnel zone clearance important?
Obstruction causes signal fading; proper clearance ensures line-of-sight performance.
How much clearance do I need?
Minimum 60% first zone clearance; 100% clearance ideal; 80% typical compromise.
learn.ctaText
इसे स्वयं आज़माएँ →