Radio propagation model

Introduction
This software is a tool to help in the elaboration of radio communication networks. Before implementing a network in the field, it can be used to verify the performance of network radio links.

The computer program evaluates if a radio link is possible between two given sites, and provides the performance of that link taking into account:

a. The radio equipment characteristics, 

b. The radio wave propagation theory (using the US Institute for Telecommunications Science (ITS) propagation prediction model, better known as the Longley-Rice model (Notes 1 and 2)).


Note 1 Georges A. Hufford, Anita G. Longley and William A. Kissick.  A Guide to the Use of the ITS Irregular Terrain Model in the Area Prediction Mode, National Telecommunications and Information Administration (NTIA) Report 82-100, US Department of Commerce, April 1982.

Note 2 Anita G. Longley.  Radio Propagation in Urban Area, Institute of Telecommunication Sciences, Office of Telecommunications, Boulder, Colorado 80302.

Suggested values for surface parameters

Ground attribute	Ground Conductivity	Relative Permittivity
Average ground	.005	15
Poor ground	.001	4
Good ground	.02	25
Fresh water	.01	25
Sea water	5	25