India to expand NaVIC, make signals more secure: ISRO chief

India plans to expand its regional satellite navigation system NaVIC in a bid to increase its use in the civilian sector and also by ships and aircraft travelling far from the country’s borders.

The Navigation with Indian Constellation (NaVIC) uses seven satellites to provide real-time positioning and timing services in India and an area extending upto 1,500 km from the country’s borders.