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Fig. 9.


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Phase slips and count omissions for different GPS satellites during the solar flare of 6 December 2006 (a, b, d). Radio spectrum in the range from 1.2 to 2.0 GHz, recorded by the solar spectrograph OVSA (e). Signal-to-noise ratio (from Cerruti et al. 2006) at the main GPS frequency f1 (b), according to data from the special-purpose GPS receiver aimed at recording GPS signal scintillations (figure taken from Afraimovich et al. 2009e).

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