Everyone knows that the US military invented the Internet. However, you may not know that the predecessor of today's mobile communication network is the US Army's MSE (Mobile Subscriber Equipment). In the 1980s, the US military began to look for new technologies to upgrade military communications networks, hoping that the new military communications network could provide a wider range of coverage, better error correction capabilities and higher data capacity, and could provide automatic routing and switching functions. . In 1985, the US military chose General Dynamics (formerly GTE) as its main partner. Through a lot of research, the MSE system was finally developed. MSE, Mobile Subscriber Equipment, is the predecessor of today's mobile terminals. MSE mobile communication vehicle in Desert Storm Operation Many communication technologies are developed from military to civilian, and military communications are usually ahead of civilian communications. For example, media reports some time ago that the US military is using mobile ad hoc networks to enhance communication capabilities. The US mobile ad hoc network technology is shifting from research and development to production and deployment, and through the US Army's project execution office for command, control, and tactical communications, a series of interoperable developments have been developed using the Joint Tactical Radio System project. Software-defined radio technology that assists weaker users in implementing mobile ad hoc networking capabilities. Whether it is a self-organizing network or a software-defined radio, these are the future development directions of civilian mobile communication technologies. Today, let’s talk about the communication capabilities of the US military. The US military active communication system is divided into two types: strategic communication system and tactical communication system. First, the strategic communication system The main responsibility of the US military strategic communications is to ensure the highest command of the US military (presidential and defense ministers) and the Joint Chiefs of Staff, the various branches of the military, the nine joint command, the intelligence agencies, the nuclear strategic forces, the major military bases and the various theater units. The communication is open to ensure the command and control of the global command of the highest commanding authority. At present, the President of the United States orders the first-line combat troops step by step through the strategic communication system, which takes only 3 minutes to 6 minutes. In an emergency, the president can give orders to the strategic nuclear forces. The fastest is only 1 minute. – 3 minutes. The US military's strategic communication system is mainly composed of a defense communication system, a defense satellite communication system, and a minimum emergency communication network. 1. The defense communication system is managed by the National Defense Communications Bureau. It mainly uses wired communication, radio communication, satellite communication and optical fiber communication. The total length of the line is more than 67.29 million kilometers, covering more than 80 countries on five continents and more than 3,000 in 100 regions. Military command posts and workstations. An important component of the new generation of defense communication systems is the defense data network, which integrates the data networks deployed by various US military units around the world, enabling voices, images, and faxes to be easily completed between US military units. Communication services such as data communication and e-mailing. 2. The Defense Satellite Communication System (DSCSIII) is the backbone of strategic telecommunications in the United States. It consists of 14 satellites located in geosynchronous orbit above the equator, mainly working in the UHF band (the latter four satellites have been added with extra high altitude). Frequency communication) provides encrypted and reliable global communication services for the US Army, Navy and Air Force in the five regions of the Eastern Pacific, Western Atlantic, East Atlantic, Indian Ocean and Western Pacific. 3. The Minimum Emergency Telecommunications Network (MEECN) is designed for the communication and command of the US President under the conditions of nuclear war with the nuclear forces of the land, sea and air forces. The system consists of Air Force Satellite Communication System, Naval Ground-based Very Low Frequency Radio Broadcasting Network, Navy “Takamu†Airborne Very Low Frequency to Submarine Communication System, Naval Extremely Low Frequency Submarine Communication System and Army “Ground Wave Emergency Networkâ€. Communication system consisting of: ——The Air Force Satellite Communication System is the main means of communication for the Air Force and the Department of Defense to command the Air Force’s strategic units to deliver emergency documents. The ground terminal is the AN/ARC–171(V) UHF satellite communication machine, currently the US Air Force’s strategic bomber and refueling. These terminals are installed on the machine. ——The land-based VLF radio network has set up 11 high-power VLF stations with more than 500KW in its home, Japan, Britain, Australia and Panama. Each station has 7–26 towers and towers. At a height of 383 meters, the network can send emergency orders to US military nuclear submarines in various oceans around the world in times of crisis. ——The naval “Takamu†airborne VLF-submarine communication system is the most important anti-destructive means for the US Navy to submarine communication. Currently, the system uses the E-6B aircraft, and its VLF antenna uses a long and short double tow. The antenna (7925m / 1220m), with a maximum output power of 250KW, can effectively guarantee the communication between the highest command authority and the strategic nuclear submarine force. ——The naval extremely low frequency to submarine communication system, the radio wave penetration ability to seawater is positively correlated with its wavelength, the extremely low frequency wavelength (1000–10000km) of 30–300Hz is extremely long, and its penetration ability to seawater can reach 100. Above the meter. Therefore, relying on the system, the US Navy can establish communication with strategic nuclear submarines that snorkel thousands of kilometers below 80 meters. ——Army “ground wave emergency network†There are 400 towers with a height of 299 meters in the country. The frequency range is 150K–175KHz. The network has strong anti-destructive performance, even if 200 of the relay nodes are destroyed. Affect the overall performance of the network. Therefore, the Army's "Earth Wave Emergency Network" can effectively guarantee the US military's highest command authority can still issue nuclear retaliation orders to the strategic nuclear forces after the nuclear attack. We are one of the leading Manufactures, Suppliers and Exporter of high quality Aluminum Tee in China.
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