China Links Arctic and Antarctic Through Its Own Satellites
Researchers in the Arctic have held video calls with colleagues at China's Qinling station in Antarctica using only Chinese satellites. The trial ran during the country's 16th Arctic expedition, which set out in the northern summer and is due home this month. State media reported the link this week, and analysts read it as the end of a long reliance on foreign operators for polar traffic.
The connection ran on the GW constellation built by China Satellite Network Group, the state backed operator known as China SatNet. Latency stayed below one second, which let the two ends of the planet talk in near real time. The network carried peak upload and download speeds above 30 megabits per second, enough for several high definition streams at once.
Over the expedition the team sent 300 files totalling more than 100 gigabytes and opened more than 40 video calls. And it was not only a demonstration. Doctors in Qingdao used the link to assess expedition members who fell ill, and the crew moved science data and voyage logs back to shore over the same path.
Buoys deployed in the central Arctic Ocean reported through the satellites as well, giving researchers readings on ice and sea state across the year. The expedition was sent to survey Arctic sea ice and to study changes in the region's ecology and atmosphere, work that feeds into wider climate research. He Jianfeng, chief scientist on the voyage, said cheaper domestic equipment would let the team build a large survey network at a workable cost.
Li Taoyang, an analyst at China Securities, wrote in a note to clients that the trial filled a gap in the country's ability to keep satellite communications under its own control from one end to the other. In the short term, he said, polar communications are moving from foreign technology towards a domestic system.
Scale is the caveat. China SatNet has talked about nearly 13,000 satellites by 2035, with about 1,300 in orbit by the end of 2029. But SpaceX already runs roughly 11,000 satellites through Starlink and has served the Arctic since 2022, so the head start is measured in years rather than months.
The trial also fits a wider push. Nine government bodies, the commerce ministry among them, issued a draft policy calling for more domestic technology in AI, cloud computing and embodied intelligence. And the same week the polar link was reported, state media framed self reliance as delivering working services rather than testbeds.
Two things remain unstated. China has not published the terminal's power draw, its cost per site or its throughput under heavy weather.
But the numbers behind the trial are thin. A permanent polar network also has to survive ice, salt and months of darkness at both ends of the planet, and the trial does not say whether the hardware can. Until those details appear, the fair question is not whether China can reach the poles, but whether it can do so at a price that makes a permanent network worth keeping.
Arctic ships and Qinling station held video calls on Chinese satellites alone
Latency stayed below one second with peak speeds above 30 megabits per second
The expedition moved 300 files and more than 100 gigabytes of data
China SatNet targets about 1,300 satellites by the end of 2029 against roughly 11,000 for Starlink today
Source: South China Morning Post
