RF TOOLS
RF Coverage Calculator
Calculate path loss, coverage area, and link budget for your wireless system design.
⚙️ System Parameters
0 dBm (1mW)
30 dBm (1W)
50 dBm (100W)
0 dBi (Omni)
6 dBi
30 dBi (Dish)
0 dBi
2 dBi
20 dBi
-120 dBm
-90 dBm
-50 dBm
📊 Link Budget Analysis
36 dBm
EIRP
128 dB
Max Path Loss
1.2 km
Est. Range
4.5 km²
Coverage Area
📡 Coverage Visualization
Strong (-50 to -70 dBm)
Medium (-70 to -85 dBm)
Weak (-85 to -100 dBm)
📉 Path Loss vs Distance
RF Formulas Used
Free Space Path Loss (FSPL)
FSPL = 20log₁₀(d) + 20log₁₀(f) + 20log₁₀(4π/c)
Where d = distance (m), f = frequency (Hz), c = speed of light
Link Budget
P_rx = P_tx + G_tx + G_rx - L_path - L_cable - L_fade
Received power equals transmitted power plus gains minus losses
EIRP (Effective Isotropic Radiated Power)
EIRP = P_tx + G_tx - L_cable
Total radiated power referenced to isotropic antenna
Coverage Area
A = π × r²
Circular coverage area based on maximum range
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