# okumura model

Applicable to 1-100km and 150-1500MHz. Comes from empirical model in Tokyo.

\begin{equation}
P_l = L(f_c, d) + A_{mu}(f_c, d) - G(h_t) - G(h_r) - G_{AREA}
\end{equation}

where

- P
_{l}is the path loss - L is free space path loss
- A
_{mu}is median attenuation - G
_{x}is the gain factor