November 1998 'Iridium' star's global satellite phone system is fully completed and officially put into commercial operation after people Iridium 'satellite companies around the world to establish more branches and set aside a huge budget in a massive worldwide advertising campaign, to commemorate this significant technological initiative vibrator acquisition, described as massive. However, as time goes on, 'Iridium' Star serious problems exist in the project appraisal gradually exposed. The number of satellite phone users 'Iridium' Star absorbed far below original expectations, originally expected to reach even a fraction of the number. Meanwhile, the 'Iridium' star's interest-bearing debt of up to $ 4.4 billion, accounting for 80 of the total investment 'serious deficits lead to rapid depletion of funds, in trouble financially, the company had to apply to the court in August 1999 bankruptcy protection in March 17, 2000 acquisition of millet phone vibrator, 'Iridium' satellite companies have been declared bankrupt, costing $ 5.7 billion of 'Iridium' systems and ultimately to failure. While to the public of 'Iridium' star system failed, but the satellite mobile phone systems are still broad market. Because the current, terrestrial cellular mobile phone system can cover the Earth 25 ^ area, but also by the user and the phone volume constraints, in some sparsely populated area long-term harm than good cellular network operators, in addition to the successful operation of maritime satellite systems for decades, show that the satellite mobile phone market prospects. Currently satellite phone system is still under development, in addition to have been put into use in the global satellite system, as well as 160 systems, the Odyssey system, Japan - Tintin system, the European shakuhachi 0: 6: Systems, have broad prospects for development. Thus the acquisition of Huawei cell phone oscillator, we can initially consider: IT (dagger 丨 of claws of Gading 0 ^ 100 Shu light, referred to as I D) is a technology-based microelectronic and optoelectronic transducer acquisitions Sony phones, computer and cell phone technology as a support to information processing technology theme technology systems in general, it is a comprehensive technology. Closely integrated computer and mobile phone technology, marking the advent of the digital information age, a lot of media can be used as a transmission medium used in mobile phones, but these media themselves have different attributes for different environmental conditions. While mobile phone business itself will use transmission medium different requirements. Therefore, in practice there are a variety of environmental transmission medium, the following are three types of common transmission medium. Wired cable: phone cable common include unshielded twisted pair cable, shielded twisted pair and coaxial cable. Advantages Over Cable is a low cost, easy to install; drawback is the limited frequency spectrum, and inconvenient to move after installation. Cable is wired phone (for example, access networks) The most common transmission medium. On the other hand, the use of wireless media significant advantage is building a network fast and mobility, support is good, the drawback is even lower than the spectral width of the cable. In addition, the cost of using the wireless medium sometimes far higher than wired media Huawei cell phone vibrator acquisition | Hunan vibrator acquisition | Obo Obo electronic is supplied by Shenzhen Electronic Technology Co., Shenzhen City Aobo Electronic Technology Co. (www.aobodz.com) strong, credible, in other industries in Shenzhen, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Obo electronics into the brilliant and you work for a better future!