45 years ago today, October 22, 1980 (Calendar September 14, 1980), China made the first batch of ship satellite navigation receiver. October 1980, China developed the first batch of ship satellite navigation receiver, began to deliver long-haul ships to use, good performance. Satellite navigation is the new technology of modern navigation. China's new generation of this type of ship satellite navigation receiver, has all the weather and global characteristics, strong resistance to interference, high precision, good stability. In May this year, China launched long-haul rocket test to the Pacific, this type of satellite navigation receiver has been loaded in various ocean surveillance ships, measurement ships, fishing vessels, to guide our fleet to complete the rocket test and fishing mission, played an important role