Cell phone jammer does not influence with other electronic equipments

The current system is under construction, and the September 26, 2003 China Unicom, Beijing Zhenrong factoring in the Great Hall and Sun Microsystems announced the establishment of co-sponsored "UniJa technology alliance", the three parties will Unicom CDMA 1X network in the Java value-added services and comprehensive cooperation. Bluetooth is a short-range communications support equipment (usually within 10m) radio technology. Can include cell phones, PDA, wireless headsets, laptop computers, related peripherals and many other wireless information exchange between devices. Bluetooth standard is IEEE802.15, working in the 2.4GHz frequency band, bandwidth is 1Mb / s. cell phone jammer needs the maintenance and inspection.
"Bluetooth" (Bluetooth) was originally a unity in the 10th century Danish king, he was Sweden, Finland and Denmark unified. Using his name to name this new technology standard, the situation with the divided unity mean. Bluetooth technology uses high-speed frequency hopping (FH, Frequency Hopping) and Time Division Multiple Access (TDMA, Time DivesionMuli-access) and other advanced technology, the most inexpensive way to close several digital devices (mobile devices, fixed communications equipment, computer and terminal equipment, a variety of digital data systems, such as digital cameras, digital cameras, and even household appliances, automation equipment) reticular link. Battery of cell phone jammer can be replaceable for the new type of cell phone jammer.
Bluetooth technology will be a variety of network peripherals unified interface bridge, which eliminates the connection between the device and replace them with a wireless connection. Bluetooth is a short-range wireless communications technology, electronic devices to each other and connected via Bluetooth, eliminating the traditional wires. Through the wireless receiver on a chip, equipped with Bluetooth technology, electronic products can be 10 meters distance from each other connected, transmission speed can reach 1 megabyte per second. Interface previous infrared transmission technology needs within the electronic device in the line of sight distance, and now with Bluetooth technology, this trouble can be exempted. Bluetooth (Bluetooth) by Toshiba, Ericsson, IBM, Intel and Nokia in May 1998 jointly proposed the short-range wireless digital communications technology standards. cell phone jammer can protect the privacy of the people.
The goal is to achieve maximum data transfer speed 1Mb / s (the effective transfer rate of 721kb / s), the maximum transmission distance of 10 meters, the user does not have to go through an application can use the 2.4GHz ISM (Industrial, Scientific, Medical) frequency band, in its 79 set up the channel bandwidth of 1MHz, with 1,600 times per second switching frequency, the way hobbing technology to achieve spread spectrum radio transceiver. Bluetooth technology advantages: support for voice and data transmission; using radio technology, transmission range, penetrate between different substances and materials proliferation; using frequency hopping spread spectrum technology, interference is strong, not easy listening; use in countries not restricted spectrum, in theory, there is no interference problems; low power consumption; low cost. Bluetooth Disadvantages: Slow transfer speeds. Bluetooth technology performance parameters: the effective transmission distance of 10cm ~ 10m, increasing transmission power up to 100 meters, or even farther. Different cell phone jammer will act on the specific frequency channel.
Transceiver operating frequency of 2.45GHz, the coverage is 79 channels separated by 1MHz (from 2.402GHz to 2.480GHz). Short packet data transmission technology used, frequency hopping spread spectrum technology, 1600 times / second, to prevent eavesdropping and to avoid interference; every time you send a packet, the packet size from 126 ~ 287bit; packet content can contain different data or voice services available. Sync data transfer bandwidth up to each direction of 32.6Kbps, close to 10 times the typical 56kb / s Modem analog connection speed, asynchronous connection allows one direction of data transfer rates up to 721kb / s, is used to upload or download, this the opposite direction when the rate is 57.6kb / s. Installation place of cell phone jammer depends on the site environment.