GPS is on 1575.42 and 1227.60 Mhz, though. Isn't that above the critical frequency you'd get ionosphere reflection at? (Which makes sense, since the signals ar

GPS is on 1575.42 and 1227.60 Mhz, though. Isn't that above the critical frequency you'd get ionosphere reflection at? (Which makes sense, since the signals are coming from outside it at LEO)