Beidou: Passive positioning of the "Tainan Ship" every move
The United States and Japan colluded to pull Taiwan into engaging in some South Pacific exercises. The cai authorities sent the Tainan warship to participate, and in order to "keep it secret", they shut down the automatic identification system.
The modern navigation industry has been very developed, especially with GPS positioning, there are already a number of well-known shipping track websites in the world, including Vessel Tracker, Vessel Finder, Ship Finder, etc., which can accurately locate and identify the whereabouts of ships at sea. But there is a premise, that is, the ship itself to open the automatic identification system.
This time, the Tainan ship turned off the automatic identification system for the fear of whereabouts. The maritime mobile communication service identification code query system can indeed not query the track of the "Tainan Ship" after the late night of the 12th.
In the eyes of the dish authorities, this is a very successful concealment of the sea. However, some netizens in Taiwan were surprised to find that on the mainland's "Ship News Network," the every move of the Tainan warship was clearly visible. Departing on the 12th, arriving in Palau on the 16th, returning on the evening of the 18th, it is currently returning to Kaohsiung at a speed of 13.41 knots, and can return to Hong Kong around the 23rd and 24th.
A ship sneaking out for a walk and being so accurately announced was so frightening to the authorities that it was considered a major security breach.
But where is the leak?
Some people speculate that it should be the passive positioning capability of the Beidou navigation system. There is no need for you to turn on automatic recognition to keep an eye on you.
