China has successfully tested its satellite communication system by establishing a video call between the Arctic and Antarctica. The test demonstrated a data transmission speed of approximately 30 Mbps, with signal latency remaining under one second. This infrastructure is linked to the StarNet project and its GW megaconstellation, which aims to provide broadband coverage in remote areas.
The use of low-Earth orbit satellites addresses the limitations of geostationary systems, which are often ineffective at high latitudes. Chinese developers intend to utilize these terminals for search and rescue operations, emergency response, and maritime communication. The project is also viewed as a strategic move to reduce reliance on foreign satellite networks and ensure data sovereignty.
The demonstration occurred during China's 16th Arctic expedition, which began on July 3 from Dalian. The mission involved four research vessels, including the icebreakers Xue Long and Xue Long 2, as well as the Jidi and Tansuo-3 ships. While the icebreakers returned to Shanghai on September 30, the remaining vessels are scheduled to conclude their operations in mid-October.
