Cell phone jammer only shields downward frequency of base station

The 802.11a MAC to Ethernet-based system, and HiperLAN2 is similar ATM; the former type of non-connected Topology, adopted collision detection, which is the connection type of link (connection-oriented links), but still receive the Ethernet frame . HiperLAN2 members of the special features is part of the heavy industry, such as Nokia and Ericsson, Bluetooth is also a founding member, they will be positioned as a Bluetooth personal area network with the (PNA), while the HiperLAN2 as building high-speed wireless local area network, with each other so, and Bluetooth. The communication signal sent by the detector ofcell phone jammerintelligent system will be sent to the computer mainframe to record relevant information for the future inquiry.
Two other members of the TI, Bosch is committed to the development of 28GHz LMDS band, it is more HiperLAN2 undertake the role of high-speed wireless network. Have started to 802.11b WLAN interface card as part of the corresponding business notebook equipped with optional Dell, with a strong position on the U.S. Department of the PC industry, adding HiperLAN2 camp more compelling. In addition to the initiated members, have joined HiperLAN2 members of the European system of roles, including Alcatel, Siemens, Philips, Grundig, Cambridge Silicon Radio; U.S. Department of Motorola, Silicon Wave and Japanese of the NTT. WLAN 5 GHz of the European and American regulations will be implied against the more political factors. A group of TTL signals and a group of RS-485 communication signals are outputted when the signal is detected by the detector ofcell phone jammerintelligent system.
Part of the Department of Industry of the United States to join HiperLAN2 emphasized HiperLAN2 relative advantage of 802.11a technology with QoS ability. Deep commitment to the Intel WLAN at IDF Fall 2000, the specifications were in favor of Europe and America into one, this will be conducive to the promotion of the WLAN market. Regardless of what a technology can not escape the WLAN chip comprising the expensive fact, only really solve this problem, can really open up the market acceptance of the WLAN. For the industry as well as in the 5 GHz 2.4 GHz technology development are yet to consummate the point, it still can not significantly reduce costs. Even the mainstream WLAN present level of 2.4 G 802.11b chipset leading industry Intersil. The detector of cell phone jammer intelligent system has coding positioning.
Still need to draw on IBM's SiGe process to solve the problem of high prices is not easy to reduce in the short term. Part of the professional IC design company in Silicon Valley and the early use of local university research results, track the development of CMOS process cheaper way of a direct attack on 5GHz, this to Radiata and Atheros Communications is a representative. The two companies have launched in October 2000, the corresponding 802.11a samples, and were scheduled in January 2001 and mass production in July. If the product used for system manufacturers, will be a major milestone in the WLAN, and WLAN high-speed ahead to promote the state. Radiata of 802.11a WLAN chipset of speed up to 54Mbps, and the current price of 11 Mbps 802.11b chipset equivalent of $ 35. Fasten the antenna of the detector of cell phone jammer intelligent system to the corresponding antenna socket.
Contain other components around the whole piece of PC interface card manufacturing costs of about 55 to 65 dollars, the actual retail price of about $ 150, faster than 802.11b increased 4-fold, the price is the same. The company plans to target the market can be broadly divided into three categories, namely the home market, as PC, TV, VCR and other AV equipment and a variety of digital consumer electronics products network links between, and 1394, HomePNA, HomeRF, 802.11b and other common competition is expected in 2004, only $ 5.6 billion in home networking market. Since almost 54 Mbps data rate current DVD's MPEG2 twice, in the family's application called for. Power supply of the detector ofcell phone jammerintelligent system should be selected and matched according to the program.