Figure 10
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GPS L2 signal strengths of four GPS satellites as measured at IGS station VILL (blue) and YEBE (red) during the SRB on 24 September 2011 (solid line) and according to the undisturbed reference (dashed line). The stations are separated by an approximate distance of 74 km. Their receivers are an Ashtech UZ-12 (VILL) and a Trimble NetRS (YEBE).
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