Methods of diagnostics of characteristics of the ionosphere for a given region and correction of ionospheric models in order to improve the accuracy of predicting the propagation of radio waves of decameter range

The paper proposes a technique which allows to adjust global model of the ionosphere based on its current measurements. A review of existing means for diagnostic of the ionosphere characteristics is made. The minimum composition of the autonomous complex for measurement of ionosphere parameters as well as the necessity of heliogeophysical monitoring of the ionosphere in the interest of radio electronic equipment are justified.