Prediction of presence of communication on intervals of digital line-of-sight radio-relay systems

A method, an algorithm and software for prediction of presence of communication on intervals of digital line-of-sight radio-relay systems are developed. The method for known characteristics of radio means and propagation parameters calculates factor of unavailability of an interval and severely erroneous second ratio and compares them to the normalized values. The method takes into account a signal fading caused by a subrefraction of radio waves, by a multipath beams spreading, by a precipitations, by atmospheric gases and water vapours.