Taiwan's "Caiguard Tainan Ship" went to Palau last week for a confidential mission, which may be a joint exercise with similar ships from the United States and Japan. Such an important action must be low-key and confidential. Therefore, the "Tainan Ship" must have shut down the A

"Tainan Ship" is a 2,000-ton coast patrol ship undertaken by CITIC Shipbuilding. (Photo/Taiwan "Coast Guard Administration")

Taiwan's "Coast Guard Administration Tainan Ship" (CG126) went to Palau for a confidential mission last week, which may be a joint exercise with similar ships from the United States and Japan. Such an important action must be low-key and confidential. Therefore, the "Tainan Ship" must have shut down the AIS automatic identification system. However, this move is invalid for the mainland "Ship News Network", and the website still fully presents all the dynamics of the "Tainan Ship".

AIS Automatic Identification System is an automatic tracker that must be installed on ships. It will send signals to shore, islands, satellites and other equipment to calibrate the position and dynamics of the ship to avoid collisions caused by overlapping the waterways. However, law enforcement ships in various countries and localities, as well as warships, , often shut down AIS navigation for confidentiality tasks. This has been happening for many years, and the Palau mission of the "Tainan Ship" must be the same. The commonly used ship information query networks including Vessel Tracker, Vessel Finder, and Ship Finder are indeed unable to find the tracks of the "Tainan Ship" in 12 days.

The mainland’s “Ship News Network” will fully disclose the confidential mission trends of the “Tainan Ship”. (Photo/provided by netizens)

However, for some reason, the mainland "Ship News Network" can be easily found. As long as you search for the "Tainan Ship" MMSI number 416445000, the ship's trip to Palau will be completely unaware of it. From the departure on July 12th to the arrival on July 16th, it is clear at a glance.

This reminds people of the function of mobile phone positioning. Even if the positioning of the mobile phone is turned off, the phone will still send a signal; the same is true for AIS. Simply turning off the AIS system, it will still send a signal and cannot be concealed from everyone.

The island military analyst said that this incident explains why the mainland is particularly persistent in building its own Beidou communication satellite, and the "5G war" in previous years. The US government's efforts to block Huawei 's 5G equipment is not simply a competition for commercial interests, but a struggle for military strategy.

Currently, most ship dynamic networks are stipulated that after closing the AIS system, the website cannot display the ship's location. However, is this really the case? It should be "unwilling to present" rather than "unable to present"; on the other hand, the mainland does not need to comply with the US regulations and systems, and at the same time they have found a method, or "cracked" the continuous tracking method after the AIS system is shut down, so the mainland "Ship News Network" directly disclosed the "Tainan Ship" official ship. Based on this inference, they will inevitably be able to track the US and Taiwan warships that shut down AIS. (Source: Taiwan's "China Times News Network")