E.A. Karaush FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russiakhanykova@vniiftri.ru Al’manac of Modern Metrology № 4 (28) 2021, pages 40–48 Annotation. The delay of the navigation signals of the Global Navigation Satellite System (GNSS) in the ionospheric layer of the Earth leads to a significant uncertainty in the results of coordinate-time determinations. For a number of tasks … Continue reading On the problem of compensation of ionospheric delay of navigation signals for the purpose of calibration of GNSS receivers