Fig. 9From: ScintPi 2.0 and 3.0: low-cost GNSS-based monitors of ionospheric scintillation and total electron contentLeft panels: time variation of vertical TEC (VTEC) derived from ScintPi 3.0 measurements of GPS (top) and GALILEO (bottom) signals. Right panels: time variation of vertical TEC (VTEC) derived from PolaRx5S measurements of GPS (top) and GALILEO (bottom) signalsBack to article page