Good cell phone reception in the high | My Content Builder

Research Group of cell phone jammer
Fiber optic repeater mobile communications repeater station by the side near the coverage area of the proximal side of the machine and the remote machine composed of two parts, for the proposed base station repeater area in the high mountains block or two far apart, while the base station and between the areas covered by the case with cable Jianzhan. Both broadband fiber optic repeater, Band, Band, frequency selection and other functions. Transmission distance up to 20Km, due to space isolation is good, does not produce the same frequency interference, re-issued the direction of omni-directional antenna can be covered in order to improve coverage results. Application of WDM splitter thing, splitting technology, fiber optic Repeater can also use other system components. The power line of energizing cell phone jammer doesn?t need the centralized wiring.
Downlink from the base station received signal, amplified to the user the direction of coverage; uplink from the user to receive signals, amplified and sent to the base station. In order to limit belt, plus a band-pass filter. In order to choose the frequency, the uplink and downlink frequency down-conversion to IF, the selected frequency band-limited treatment, and then resume on the frequency, the downlink frequency. Will receive signals into optical signals by photoelectric conversion, transmission and then restore electrical signals by the electro-optical conversion to issue. cell phone jammer system can be switched on or off centrally.
Will receive on the frequency of the microwave frequency, after down-conversion for the original transmission received frequency, amplified and sent out. Simple indoor repeater is a device, its requirements and the outdoor unit is not the same. celluar phone jammer can prevent using of cell phone from making the noise in the meeting.
Repeater products based on the characteristics and needs of mobile communication networks, different geographical environments and applications, the system solution is different, and this requires careful analysis, be treated differently. For wireless repeater, the signal isolation is particularly important. Wireless repeater to receive signals from space, will require that the signal in space as pure; a relatively dense area in the base station, separate signals of different base station or sector will greatly increase the difficulty, easy to increase the base station repeater interference. Therefore, the base station with a relatively dense area, the proposed cable signals as far as possible the introduction of methods, such as optical ones. In the absence of the conditions of using fiber optic repeater sites, but to use wireless repeater, but the donor antenna must have enough direction selectivity. cell phone jammer has little influence on the area beyond the examination room.
Various areas and applications for places, due to the dense base station, the user traffic of different, proposed the following principles repeater applications: As the user capacity, a larger number of base stations, generally does not exist a wide range of signal blind area, repeater is used to solve a small area of fill signal blind and building coverage. Fiber to the building is not yet universal in the case, requires the use of wireless repeaters. As the building increases, the number of repeaters required will also increase, there will be a base station to configure multiple repeater situation.
However, the introduction of the repeater station is bound to interfere, the interference will increase with the increasing number of repeaters, especially the introduction of high-power repeater, system interference will significantly increase. Thus, in dense urban areas should be using low-power (1W or less) repeater. Early in the CDMA network construction, due to the small number of base stations, can be used to power wireless or fiber optic repeater. Urban fringe areas, mainly to resolve the coverage issue. Laying fiber in the region has been the best use of the fiber output power of 10W repeater.?mobile phone jammer adopts the special advanced technology approach according to requirements of the market.

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