Transceiver JG1EAD. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Civil radio communications
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The appearance of the transceiver
Publication: N. Bolshakov, rf.atnn.ru
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Latest news of science and technology, new electronics:
The world's tallest astronomical observatory opened
04.05.2024
Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>
Controlling objects using air currents
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The development of robotics continues to open up new prospects for us in the field of automation and control of various objects. Recently, Finnish scientists presented an innovative approach to controlling humanoid robots using air currents. This method promises to revolutionize the way objects are manipulated and open new horizons in the field of robotics. The idea of controlling objects using air currents is not new, but until recently, implementing such concepts remained a challenge. Finnish researchers have developed an innovative method that allows robots to manipulate objects using special air jets as "air fingers". The air flow control algorithm, developed by a team of specialists, is based on a thorough study of the movement of objects in the air flow. The air jet control system, carried out using special motors, allows you to direct objects without resorting to physical ... >>
Purebred dogs get sick no more often than purebred dogs
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Caring for the health of our pets is an important aspect of the life of every dog owner. However, there is a common assumption that purebred dogs are more susceptible to diseases compared to mixed dogs. New research led by researchers at the Texas School of Veterinary Medicine and Biomedical Sciences brings new perspective to this question. A study conducted by the Dog Aging Project (DAP) of more than 27 companion dogs found that purebred and mixed dogs were generally equally likely to experience various diseases. Although some breeds may be more susceptible to certain diseases, the overall diagnosis rate is virtually the same between both groups. The Dog Aging Project's chief veterinarian, Dr. Keith Creevy, notes that there are several well-known diseases that are more common in certain breeds of dogs, which supports the notion that purebred dogs are more susceptible to disease. ... >>
| Random news from the Archive ASUS X99-WS/IPMI motherboard with remote control system
07.10.2015
Expressions such as "remote control" when applied to motherboards can cause ordinary users to misunderstand and even resent a hypothetical attack on privacy, but in large companies where hundreds and thousands of servers and workstations work simultaneously, the life of system administrators without appropriate technologies was would be a real hell. ASUS has announced a new X99-WS/IPMI workstation board equipped with the ASMB8-iKVM remote management module.
ASMB8 allows you to not only monitor the system status and manage its power, but also get full access to the image displayed on the monitor, including the BIOS settings interface or Windows Blue Screen of Death. Despite the fact that ASUS X99-WS/IPMI is not positioned as a gaming or overclocking board, it has a proprietary version of the LGA 2011-3 connector with an increased number of pins, the so-called ASUS OC Socket. All processors with this interface are supported, including the Intel Xeon E5-1600 v3 and Xeon E5-2600 v3.
Today, the processor imposes restrictions on the use of memory, so support for registered DDR4 modules with ECC is declared only for Xeon processors. In other cases, conventional, unbuffered DDR4 memory without error correction is supported, with a maximum capacity of up to 128 GB. The frequency of modules in overclocked mode can reach 3200 MHz. The configuration of peripheral devices also depends on the processor: in models with 40 lanes of PCIe 3.0, all five full-size slots can work in an x8 configuration, with 28 lanes there are a number of restrictions on the configuration and number of active PCIe slots.
You can connect up to 8 drives with SATA 3.0 interface, one with SATA Express interface, or use the M.2 connector that shares bandwidth with SATA Express. The network subsystem is represented by a pair of Intel i210-AT controllers, an additional LAN port is used for remote control.
The control system itself is based on a combination of the well-known ASPEED AST2400 chip and the proprietary IPMI 2.0 ASMB8-iKVM key. The sound part is not forgotten either: it is implemented on the Realtek ALC1150 controller, complemented by high-quality operational amplifiers. Claimed signal-to-noise ratio of 109 dB. The board has a standard ATX form factor, but the mounting holes follow the EEB standard.
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