These are mainly radio location systems, radar navigation, and the proposed satellite navigation systems, some of which are already in service.
Le yimixokelelwano yokufumana yoonomathotholo isixhobo esibonisa ukuhamba ngenqanawa sokuhamba ngenqanawa, kwakunye nemixokelelwano eveliweyo yenkwenkwezi ejikeleza enye yokuhamba ngenqanawa ezinye zazo sele zisebenza.