Repeater Coverage Calculator
Estimate repeater coverage radius from antenna height, power, terrain type, and mobile antenna parameters.
Inputs
m
W
MHz
dBi
m
Results
Effective Coverage Radius
46.25 km
Coverage Area
6,718.9 km²
Signal Margin at Edge
57 dB
Radio Horizon (Clear)46.25 km
Coverage Area2,594.2 mi²
Signal at Edge-59 dBm
Repeater Horizon41.2 km
Mobile Horizon5.05 km
Handheld Erp Dbm36.99
How to Use This Calculator
- Enter the repeater antenna height above average terrain (HAAT) in feet.
- Set repeater effective radiated power (ERP), operating frequency, and mobile antenna gain (dBd).
- Enter the mobile antenna height and select terrain type (flat, hilly, or mountainous).
- Review effective coverage radius (km/mi), radio horizon, coverage area, and signal at edge of coverage.
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Formula
d = 4.12 × √h₁ + 4.12 × √h₂ (adjusted for terrain)Related Calculators
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