This kind of cell phone jammer has the high thermostability

In addition, when theoretically strong pilot signal may be blocked will cause the frequency area covered in this guide main pilot weaker, also received a few were not strong pilot signal, which is also a pilot pollution phenomenon . Pilot pollution is mainly due to the interference caused by signals between multiple sectors between. As the complexity of the wireless environment: topography, building distribution, street distribution, waters, and all aspects of the impact of the signal is very difficult to control, can not achieve the desired condition. Pilot pollution occurs mainly in the base station dense urban environment, several typical pilot pollution prone area: tall buildings, wide streets, elevated, crossroads, and the waters surrounding area. If the installation place is less than 200m away from the cell phone base station, shielding effect of  cell phone blocker is in inverse proportion to the distance away from the base station.
External causes are: unreasonable plot layout may result in part of the region covering the empty part of the region a strong signal coverage of more than one pilot. This may result in a large area of the network pilot pollution or cover blind spots. Sometimes, due to the geographical environment is too complex, the design phase is not the comprehensive network optimization stage to solve the problem. In terms of the surrounding surface features, most of the area around the antenna line of sight, making the signal propagation in a great range of (especially in the outdoors, streets and other places), it is possible in many regions to the surrounding other stations, causing the pilot pollution problem. Antenna orientation is not a reasonable design, may result in some sectors at the same time covering the same area, the formation of excessive pilot coverage; or due to the impact of the surrounding surface features such as buildings, resulting in an area of more than one pilot exist.  cell phone jammer  should be timely switched off when it is not used to avoid influencing normal use of the cell phone.
Then according to the actual spread to the antenna azimuth adjustment. In particular, the orientation of the antenna along the street, its coverage will be down the street extension farther. Thus, within the coverage area of the other base stations along the street, may cause pilot pollution problems. Down tilt adjustment will be the district covering the edge of the signal have a major impact, thus affecting the coverage of the district. Irrational inclination design, the line that day should not be covered place to receive strong coverage of the signal, causing interference to other regions, so that it will cause pilot pollution, in severe cases can cause dropped calls. The pilot power setting factors. This kind of  cell phone jammer has the high thermostability.
Reflection, diffraction and local scattering phenomena occur in a real environment, sending signals to high-rise buildings, trees and vehicles moving objects encountered on the path to reach the receiver, resulting in different paths, multipath fading. Result in a slightly different time to reach the receiver. Decline in the real environment is inevitable. When the base stations are densely distributed, if the required coverage is small, pilot power is set too large, may result in serious pilot pollution problems. When a coverage of the target location is very high, such as tall buildings, its surrounding multiple BS in the line of sight, there easy to form the pilot pollution.  cell phone jammer  has fully considered the detailed situation of mobile communication network in whole machine design and function setting.
Therefore, the pilot in city planning and sector coverage is very important in the construction and network optimization, pilot planning and sector coverage of control can be as much as possible to avoid pilot pollution. Pilot contaminated area to make a call During a call, the pilot will frequently switch, while the current system less open access to the switch allows the user to pilot pollution, which would make the cell phone from the calls continue than usual multiple the Preamble probe, on-time variable-length access transmit power is too large, not put-through rate increases, also affect the access of high-speed business call.  cell phone jammer  can work when pressing the switch of power supply after finishing connecting the equipment.