Systems and {HEAD ~ methods} for {TAIL ~ a navigation satellite} of a satellite positioning supplementary system are provided in which a unit generates a navigation signal with a signal strength being dimensioned in such a way that it is still possible to receive signals of other satellite navigation systems 
for
Systems and { HEAD ~ methods } for { TAIL ~ a navigation satellite } of a satellite positioning supplementary system are provided in which a unit generates a navigation signal with a signal strength being dimensioned in such a way that it is still possible to receive signals of other satellite navigation systems
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