China has successfully tested its domestic satellite system, enabling video calls between the North and South Poles with a latency of less than one second. The test utilized the GW Constellation, which is the nation's first large-scale satellite internet project.

During the polar region trial, the system achieved uplink and downlink speeds of approximately 30 Mbps. Officials noted that the equipment is designed for applications in emergency rescue operations and maritime communications.

The successful trial ensures autonomous control over polar communications for China. By keeping data within the country, the system aims to enhance data security protocols for critical satellite transmissions.

The test coincided with the 16th Arctic expedition, which involved vessels such as Xuelong, Xuelong 2, Jidi, and Tansuosanhao. While the first two ships returned to Shanghai on September 30, the Jidi and Tansuosanhao are expected to return in mid-October.