Analysis of GNSS Signals Strength Passed Through the Heated Volume of the Ionosphere Produced by the SURA Facility

The results of measurements of global navigation satellite systems (GNSS) signal strength (signal-noise-rate) for the line of sight between a GNSS station and a satellite crossing the radiation pattern of the SURA facility during the experiments in the HF-pumped ionosphere produced in October 2021 are presented. Measurements were carried out on a network of the original design GNSS stations deployed in the local area of the SURA facility during that experiments. It was found that no significant changes in the power level of the received GNSS signals crossing the disturbed region of the ionosphere stimulated by the influence of powerful radio emission from the SURA facility were recorded in these series of experiments.