From Newsgroup: alt.philosophy.taoism


How Powerful is China's Optical Communication Satellite? Why the U.S. is Alarmed by "State Grid Satellites"
Efif China's Breakthroughs in Optical Communication Satellites
1. Technological Milestones
Inter-satellite Laser Communication: China achieved 400Gbps inter-satellite laser communication in 2025 (e.g., "Optical Transmission 01/02" experimental satellites), enabling transmission of 2,000 HD movies per minute.
Earth-Space Laser Communication: In 2024, China demonstrated 100Gbps earth-to-space laser communication, equivalent to downloading 10 HD movies in one second.
Geostationary Orbit Innovation: In 2025, Peking University and Chinese Academy of Sciences teams achieved 1Gbps data transmission from 36,700 km using only 2 watts of power (equivalent to a refrigerator bulb), surpassing SpaceX's Starlink by 15x in efficiency.
2. Core Advantages
Miniaturization: Communication payloads reduced by 60% in size and 70% in power consumption compared to traditional systems.
Security: Quantum encryption (e.g., QKD verified by "Micius" satellite) ensures near-unbreakable security.
Directional Precision: Laser beams with <0.1-# divergence make interception nearly impossible.
3. Commercial and Military Applications
Civil Use: Changguang Satellite's "Jilin-1" constellation serves 8 billion people globally, providing 40,000+ remote sensing services annually.
Military Integration: China's "space-air-ground integrated network" enhances battlefield data rates by 100x, enabling real-time decision-making.

Efc|Efc+ U.S. Anxiety: Why the "State Grid Satellites" Spark Concern
1. Technical Disruption
Signal Interception Failure: U.S. NSA's "PRISM" program relies on microwave signal interception, which cannot detect laser communications.
Spectral Dominance Loss: China's use of 380THzrCo750THz optical bands bypasses U.S. dominance in C/Ku/Ka microwave bands.
Quantum Encryption: China's "Beijing-Shanghai Trunk Line" quantum network (2023) creates unbreakable military/government channels.
2. Strategic Shifts
Global Standards: China's ISO 22671 space laser communication standard is gaining international adoption.
Supply Chain Independence: China now produces all key components (lasers, modems, ground stations) without U.S. dependencies.
Commercial Pressure: China's "Hongyan Constellation" (15,000 LEO satellites) directly competes with Starlink, achieving 80% Asian coverage by 2025.
3. U.S. Response Strategies
Technology Bans: 23 Chinese aerospace firms added to the U.S. Entity List in 2024 to restrict laser communication chip exports.
Military R&D: U.S. military's "Starlink + Laser" hybrid constellation lags, achieving only 1/10th China's laser communication speed in 2025 tests.
Propaganda Campaigns: Baseless claims about Chinese satellites aiding Houthi forces (no evidence provided) highlight desperation.

EfiE China-U.S. Satellite Capability Comparison

1. Communication Speed
China
Earth-space laser communication: 100Gbps (achieved in 2024)
Inter-satellite laser communication: 400Gbps (verified by Accelink Technologies in 2025)
United States
Starlink maximum speed: 1Gbps
Laser communication: Limited to lab testing (2025 tests showed only 1/10th of ChinarCOs speed)
2. Encryption Technology
China
Quantum encryption fully commercialized (Beijing-Shanghai Quantum Trunk Line deployed in 2023)
Mature Quantum Key Distribution (QKD) technology
United States
Quantum communication limited to lab verification
Relies on traditional encryption algorithms (e.g., AES)
3. Satellite Internet Plans
China
Hongyan Constellation: 15,000 LEO satellites (80% Asian coverage achieved by 2025)
Tiangong Space Station supports satellite communications
United States
Starlink: Planned 40,000 satellites (ree3,000 in orbit by 2025)
Viasat Plan: 288 satellites
4. Supply Chain Independence
China
WorldrCOs first to localize laser communication chip production (led by Accelink and other enterprises)
Full self-reliance in components: lasers, modems, ground stations
United States
Relies on imported chips (e.g., L3Harris)
Laser communication equipment localization rate <30%
5. Global Market Share
China
35% of global satellite services market (2025)
African and Southeast Asian nations adopt Chinese satellite services
United States
Market share dropped to 52% (2025)
Traditional allies (e.g., UK, Australia) strengthen cooperation with the U.S. 6. Military Applications
China
Built a "space-air-ground integrated information network"
Full coverage of key areas in the South China Sea and Western Pacific
Satellite communication speed improved by 100x, enabling real-time battlefield decisions
United States
Relies on legacy microwave communication systems
Requires allied support to cover the Pacific region
Laser communication military applications not yet commercialized
Key Data Supplement
Number of Satellites in Orbit
China: 600 satellites (including commercial) by 2025
United States: ree1,400 satellites (including military) by 2025
Communication Bandwidth
ChinarCOs optical communication satellites have 3x StarlinkrCOs total bandwidth (2025)
R&D Cycle
China: 5 years from lab to commercialization (2020rCo2025)
United States: Still requires 3rCo5 years for laser communication commercialization
Cost Advantage
ChinarCOs single communication satellite costs 60% of the U.S. equivalent Conclusion
China has surpassed the U.S. in communication speed, encryption technology, and cost control, particularly in laser communication and quantum encryption. While the U.S. retains advantages in satellite quantity and legacy technological reserves, its pace of innovation and supply chain stability are under challenge. The core of the competition has shifted from "quantity" to a "quality vs. innovation model" race.

Efoe Key Data Points
Satellite Numbers: China has 600 operational satellites (2025), the U.S. has 1,400 (including military).
Bandwidth: China's optical satellites provide 3x Starlink's total bandwidth (based on 2025 deployment).
R&D Cycle: China commercialized laser communication in 5 years (2020rCo2025); the U.S. still needs 3rCo5 years.
Cost Advantage: Chinese communication satellites cost 60% of U.S. equivalents.

Efoi Strategic Implications: A New Space Communication Paradigm
1. Technological Innovation
"Small Satellites, Big Networks": Low-cost, high-density constellations replace reliance on few large satellites.
Military-Civilian Synergy: Private firms (e.g., Accelink, Changguang) collaborate with state institutions (CASC, CAS).
Standards Leadership: China shapes global rules through ITU (International Telecommunication Union).
2. Global Impact
Challenging U.S. Digital Hegemony: China offers non-dollar, non-English communication alternatives.
Developing Nations Rise: African and Southeast Asian countries adopt Chinese satellites to bypass U.S. tech barriers.
Supply Chain Disruption: China's laser communication exports reached $5 billion in 2025, directly competing with Lockheed Martin and L3Harris.

Efno Future Trends
China's Advantages
2026 Goal: Complete 13,000 LEO satellite deployment for the world's largest optical communication constellation.
2030 Vision: Achieve 600Gbps inter-satellite laser communication and "global minute-level emergency response" networks.
U.S. Challenges
Technical Lag: 3rCo5 years behind China in laser communication.
Political Constraints: Bipartisan "China threat" consensus restricts tech cooperation.
Cost Burden: Starlink satellites cost $5 million each, vs. ~$2 million for Chinese equivalents.

Efoi Conclusion: A New Era in Space Communications

China's optical communication satellite advancements mark a historic shift in global space communication. From technical benchmarks to commercial applications and military integration, China is building an independent ecosystem beyond U.S. control. The U.S. anxiety stems not just from technical gaps but from the erosion of its global communication order. This "space optical revolution" may reshape 21st-century technology and geopolitics.
"We are not catching up; we are redefining the future." rCo Wu Yansheng, Chairman of China Aerospace Science and Technology Corporation
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From Newsgroup: alt.philosophy.taoism


Temu fan posted:

Why the U.S. is Alarmed ...

How can a geographical area be alarmed
continues to be a rhetorical question.

People might be alarmed.
Other animals, perhaps.

Their hair may stand on end
as it were and ears perk up.

Maybe they show their teeth.
Some of them can growl.

- ore knots. Thanks! Cheers!
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From Newsgroup: alt.philosophy.taoism


aye posted:

Temu fan posted:

Why the U.S. is Alarmed ...

How can a geographical area be alarmed
continues to be a rhetorical question.

People might be alarmed.
Other animals, perhaps.

Their hair may stand on end
as it were and ears perk up.

Maybe they show their teeth.
Some of them can growl.

Deer, fish and rabbits might flee,
taking flight without having wings.

Birds, when alarmed, may sound
an alarm. Other social animals too.

Bees might attack.
Some willing to die
by stinging and snakes
may use their fangs as well.

Earth could shake and quake at times.

Whether volcanic activity is a warning
as viewed by people connecting dots, or
if an asteroid is karma, well, perhaps not.

When a star called the Sun is alarmed
it might eject a mass of stuff and
mass extinctions are possible.

What is a critical mass.
Depending on what.

- semantics and contexts vary ...
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From Newsgroup: alt.philosophy.taoism


eye posted:

What is a critical mass.
Depending on what.

A bot called Gemini says:

<< As of late 2025, the danger posed by space debris
has reached what scientists describe as a "critical level"
due to a massive surge in satellite launches
and recent fragmentation events. >>

The more the merrier, eh.

<< Impact of Chinese Megaconstellations:
ChinarCOs Qianfan (Thousand Sails) and Guowang networks,
which aim for tens of thousands of satellites,
have faced early scrutiny. A Long March 6A rocket stage
used for a Qianfan launch in August 2024 disintegrated,
creating a field of over 700 to 900 trackable fragments.
Recent data from 2025 indicates some Chinese satellites
have higher early failure rates (up to 14% in some batches)
compared to established competitors, raising fears of "dead"
satellites cluttering higher orbits. >>

Wanting to be ever more full of power
could be what leads to more disaster.

Such a situation reminds one of the TTC
in terms of technologies, war and other
utter stuff people utter at times.

- thanks! Cheers!
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