When Russia launched its “special military operation” in early 2022, one of Ukraine’s first responses was to request satellite internet services from U.S. billionaire Elon Musk. Within days, thousands of Starlink terminals were delivered, helping Ukraine restore command-and-control capabilities across the battlefield.
Russian forces initially attempted to jam Starlink signals and appeared to have some success. SpaceX subsequently updated its software and adjusted the satellite system, rendering the jamming measures ineffective. This development reportedly came as a shock to militaries worldwide, including China’s.
Operational since 2019, Starlink is a low-Earth-orbit satellite constellation capable of providing low-cost, high-speed internet over a wide area, including remote regions. The network is operated by Starlink, a subsidiary of SpaceX owned by Elon Musk.
👉👉 Click now and grab your “Father and Son – Riding Partners for Life” Classic T-Shirt!
Jonathan McDowell, an astronomer at the Harvard–Smithsonian Center for Astrophysics, said Starlink currently operates more than 8,000 satellites—about two-thirds of all active satellites in orbit. Lessons from the war in Ukraine have raised an urgent question for China: how to gain an advantage in the electronic warfare domain should an armed conflict occur around Taiwan, particularly if an adversary can rely on a satellite network numbering in the thousands, capable of frequency hopping, rapid adaptation, and real-time anti-jamming.
Chinese scientists have recently published a breakthrough simulation study offering the most detailed public analysis to date of how the country’s military might seek to neutralize Starlink.
The study appeared in the academic journal Systems Engineering and Electronics and was conducted by researchers from Zhejiang University and the Beijing Institute of Technology (BIT), one of China’s leading institutions for defense-related research.
The researchers argue that jamming Starlink over a large area such as Taiwan is technically feasible, but only if a massive number of systems—potentially 1,000 to 2,000 electronic warfare drones—can be deployed.
“Starlink does not have a fixed orbital plane, and the trajectories of its satellite clusters are highly complex. The number of satellites entering the observable area changes continuously,” the study notes. “These spatial and temporal dynamics pose major challenges for monitoring or countering the Starlink network.”
Traditional satellite communications rely on a small number of geostationary satellites positioned above the equator, which can be disrupted by transmitting stronger signals from the ground. This approach does not apply to Starlink.
Starlink satellites operate in low Earth orbit, move rapidly, and exist in large numbers. User terminals do not connect to a single satellite but constantly switch among multiple satellites, forming a dynamic network overhead. If a signal is disrupted, the terminal can reconnect within seconds. Starlink also employs advanced phased-array antennas and real-time adaptive frequency-hopping techniques, largely controlled remotely by SpaceX engineers in the United States.
According to the study, Starlink can only be countered through distributed jamming. Rather than relying on a small number of high-power jammers, the researchers suggest deploying hundreds or thousands of smaller, synchronized jamming devices in the air to form an “electromagnetic shield” over the battlefield.
Using real Starlink data, the team simulated satellite movements over eastern China across a 12-hour period. The model incorporated satellite downlink signal strength, terminal reception patterns, signal propagation between ground and air, and resonance effects when multiple jammers target a single terminal from different angles.
The researchers also modeled a virtual grid of jamming devices at an altitude of 20 km, spaced 5–9 km apart in a checkerboard pattern. Each device emitted jamming signals at varying power levels to reflect real-world conditions.
Two types of antennas were examined. One emits wide beams that cover large areas but disperse energy, while the other produces narrow, focused beams that are more powerful but require greater precision.
Under ideal conditions, using costly high-power sources of 400 watts to generate narrow beams and spacing devices 7 km apart, each jammer could suppress Starlink signals over an average area of 38.5 square kilometers.
By comparison, Taiwan covers roughly 36,000 square kilometers, implying that at least 935 jamming devices would be required to blanket the island. Using lower-power but cheaper 200-watt transmitters spaced 5 km apart would double the required number to around 2,000 devices.
The researchers cautioned that these are preliminary results, as Starlink keeps certain core technologies confidential. “Future assessments will be more accurate if real measurement data can be obtained for Starlink terminal radiation patterns and empirical values of their suppression coefficients,” the paper states.
Beyond constructing an electromagnetic shield, Chinese scientists have proposed other methods to counter Starlink, including interference with its supply chain.
In a 2023 study, Chinese military engineers suggested developing satellites designed to closely track Starlink spacecraft, collect signals, and even use corrosive materials to damage their batteries or propulsion systems.
Other proposed measures include mounting laser weapons on submarines to disable satellites in space, deploying small optical telescopes to monitor satellite movements, and creating decoy targets using deepfake technology to deceive the Starlink system.