Transmitter Location
Click on the map to set location (elevation auto-detected)
Auto-detected when you click the map
RF Parameters
Above ground level
Receiver
FM typical: -116
0 = rubber duck
Environment
Results
EIRP
-
Radio Horizon
-
Avg Strong range
-
Avg Good range
-
Avg Weak range
-
Terrain samples
-
Signal Levels
Strong (S9+ / > -73 dBm)
Good (S5-S9 / -93 to -73 dBm)
Weak (S1-S5 / -113 to -93 dBm)
Marginal (< S1)
Terrain-aware model: fetches real elevation data (SRTM 90m via Open-Meteo)
along each radial and checks line-of-sight with Fresnel zone clearance.
Uses Okumura-Hata/COST-231 for path loss with 10 dB shadow margin.
Still an estimate — does not model buildings, vegetation, or atmospheric ducting.
Click on the map to place your transmitter