Technical

Okumura-Hata curve calculation tool

By inputting the frequency, transmission power and distance it is possible to calculate electric field strength/received power in each environment.

Basic input parameters

❶ Input the radio frequency in MHz

Frequency  MHz


❷ Enter the transmission power in dBm

Transmission Power  dBm --> 


❸ Enter communication distance in Km

Distance  km


Advanced input parameters

❹ Antenna height

Transmitter side  m

Receiver side  m

❺ Antenna gain

Transmitter side  dBi

Receiver side  dBi

 Log/Linear

 Electric field strength / Received power

What is the Okumura Hata curve?

The Okumura-Hata model describes radio wave propagation characteristics in various environments such as open spaces, suburbs, small to medium cities and large cities. Created by Yoshihisa Okumura, it was developed mainly to analyze radio wave propagation for mobile and cellular networks. The model is an approximation based on actual tests conducted a long time ago, however the data is still presently being used during construction of mobile phone networks.

These curves are meant to simulate propagation characteristics over medium to long range distances so for shorter distances (few tens of meters), the variation in the data becomes larger. Also it depends on the environment chosen so use this data only to indicate a margin where reception is possible.