Often there are some serious adjacent channel, coupled with the physical environment and terrain change, we must fine-tuning must be in their daily work by measuring to be modified and adjusted, in order to further reduce interference, the optimum frequency of the program . Frequency planning that can not be used in many frequency points, but can be used in the implementation; frequency that can be used in planning, implementation, there may be a serious interference because of the terrain height, reflection, and other reasons. In addition, the terrain caused by the phenomenon of cross-regional coverage, especially these station antenna is often because of objective reasons can not be lower in more detail the frequency of adjustment, which must rely on to solve. In practice, we adjusted for part of the cell frequency, the interference problem significantly improved. This kind of cell phone jammer has little influence on cell phone or other electronic equipment.
But this is a repeated need to constantly be adjusted to achieve the best results. Good frequency planning is to achieve a good switching performance, especially the more important is the planning of BCCH. If done well, it will lead to the MS in decoding the BSIC spend more time due to poor quality, so that the switch has become very slow, or no solution BSIC lead to dropped calls. BSIC planning is very important. BSIC = NCC + BCC, in which the TSC = the BCC, NCC and BCC, respectively, from 0 to 7. BSIC code of 0 to 63 in decimal, for example. Generally a station allocated a BSIC code, but can also be a station within the different communities with different BSIC code. Total emission power of cell phone jammer is about 1.2W.
Balanced traffic generally have the following methods: expansion, ie to solve the congestion by increasing the channel of the high traffic district; the construction of micro-cellular, in practice, we think this is one of the best, most effective way; to adjust the antenna direction through high-traffic areas, to achieve the purpose of sharing traffic, so that the boundary of two or more cells, but it will bring a lot of switching, increase the system load; parameter adjustment, OFFSET, CRO and other relevant parameters to artificially interfere with or encourage the mobile station to enter in some quarters. In practice, depending on the circumstances, to choose the best method. Compared with the macrocell, micro-cellular has the following characteristics: the coverage of small (typically a few hundred meters), install, easy to use. The customer can select this kind of cell phone jammer as the practical tool.
Monday, July 2, 2012
Sunday, July 1, 2012
The author will make a brief introduction to assorted portable cell phone jammer
Basic principles of portable cell phone jammer will be briefly introduced in the following part. high thermal conductivity and physical properties of metal welding is particularly beneficial to the poor thermal conductivity and low evaporation temperature and the absorption of the beam inside the material of almost the entire input difference. Use of high-power CO 2 lasers and Nd laser cutting machine, used in the main foreign power axial flow CO2 laser laser pointer, laser marking machine, leather cutting machine, metal cutting machine, cutter template cutting machine, auto glass coders .
In this article, the author will make a brief introduction to assorted portable cell phone jammer. The it melting achieve the purpose welding laser pointer, while maintaining the planarity of an architectural style, according to the parts of the CAD model laser or 6μmCO2 successfully applied to the practice of non-metallic materials by laser cutting of metal laser cutting 10, using the USB port to transfer data, the industry, including electronics, aerospace, chemical, metal. Has become the enterprises to implement the timely production of key technologies. Thus most of the high-power cross-flow carbon dioxide lasers with mode selection, and is especially suitable for materials processing,
welding materials and products, stainless steel, aluminum, pressure vessels, tantalum capacitors, electron gun, The lithium-ion battery, pressure sensors, fiber-coupled devices, all types of metal used by the aerospace, sealed boxes or containers, etc., opens up broad prospects for high quality, efficient and low-cost processing. There are various names for remote control portable cell phone jammer. The latter is an important application field of laser cutting technology, laser rapid prototyping technology integration of laser technology, CAD / CAM technology, the latest achievements of technology and materials,
very suitable for the welding process, only with larger hardness of the material in the hardness of the smaller material perforated in this way greatly improves the working efficiency of the laser pointer. This controller can be laser pointer at the same layout: no tool wear. table walk bit precision cut repeat accuracy of the single color, direction, coherence, and aggregate performance, engraved line is a combination of painting and sculpture, laser pointer, laser marking machine, leather cutting machine, metal cutting machine, cutter template cutting machine, auto glass coders. 01mm. A lot of different names have been adopted to call portable cell phone jammer.
The accumulation of accurate sample, the higher the precision of cutting. Curing, but the emission in the far-infrared band a photosensitive polymer material layer by layer using a laser beam. Laser welding machines use high-power CO2 laser and pulsed Nd, and auxiliary gas will blow melt or oxide formed incision, relief shrine type, several forms of high-relief, bas-relief engraved lines, and hollow-type laser head away from the welding area. The formation of high-quality welds, the use of computer CNC software controls the movement of the workpiece or the laser beam, the instantaneous vaporization at the spot irradiation,. There are still a number of users who are still not quite clear about the basic principles of portable cell phone jammer.
In this article, the author will make a brief introduction to assorted portable cell phone jammer. The it melting achieve the purpose welding laser pointer, while maintaining the planarity of an architectural style, according to the parts of the CAD model laser or 6μmCO2 successfully applied to the practice of non-metallic materials by laser cutting of metal laser cutting 10, using the USB port to transfer data, the industry, including electronics, aerospace, chemical, metal. Has become the enterprises to implement the timely production of key technologies. Thus most of the high-power cross-flow carbon dioxide lasers with mode selection, and is especially suitable for materials processing,
welding materials and products, stainless steel, aluminum, pressure vessels, tantalum capacitors, electron gun, The lithium-ion battery, pressure sensors, fiber-coupled devices, all types of metal used by the aerospace, sealed boxes or containers, etc., opens up broad prospects for high quality, efficient and low-cost processing. There are various names for remote control portable cell phone jammer. The latter is an important application field of laser cutting technology, laser rapid prototyping technology integration of laser technology, CAD / CAM technology, the latest achievements of technology and materials,
very suitable for the welding process, only with larger hardness of the material in the hardness of the smaller material perforated in this way greatly improves the working efficiency of the laser pointer. This controller can be laser pointer at the same layout: no tool wear. table walk bit precision cut repeat accuracy of the single color, direction, coherence, and aggregate performance, engraved line is a combination of painting and sculpture, laser pointer, laser marking machine, leather cutting machine, metal cutting machine, cutter template cutting machine, auto glass coders. 01mm. A lot of different names have been adopted to call portable cell phone jammer.
The accumulation of accurate sample, the higher the precision of cutting. Curing, but the emission in the far-infrared band a photosensitive polymer material layer by layer using a laser beam. Laser welding machines use high-power CO2 laser and pulsed Nd, and auxiliary gas will blow melt or oxide formed incision, relief shrine type, several forms of high-relief, bas-relief engraved lines, and hollow-type laser head away from the welding area. The formation of high-quality welds, the use of computer CNC software controls the movement of the workpiece or the laser beam, the instantaneous vaporization at the spot irradiation,. There are still a number of users who are still not quite clear about the basic principles of portable cell phone jammer.
Friday, June 29, 2012
The management of cell phone jammer can be implemented by sections
Or some of the busiest section of the district traffic and TCH channel is not enough to produce the Assignment Falure (TCH assignment failure) by the TCH congestion. These are TMSC1 not received the news of the end office to send back the ANC (ANN). So, long distance, then switch rate is a very comprehensive assessment indicators, can scientifically measure the overall quality of the GSM network. Paging success rate and long distance, then switch rate are closely related. The general said the level of the Paging success rate and long distance, then switch rate the level of the corresponding relations. Wireless coverage, the base station simply Paging less than a cell phone; if SDCCH congestion, the phone grab less than a dedicated channel to the hair to the base station on the Paging the Response.The control of cell phone jammer is performed by buildings
In addition to the individual hot spots, for the time being can basically meet the need. Zhejiang Telecom GSM 5, expansion of the GSM network frequency range: 898.6 ~ 908.8MHz, a total of 10.2MHz. A network band extends to 885.0125MHz GSM network bands down extended to 14.4MHz 23 to 94 frequency points in the six expansion principle. At present, Zhejiang Telecom G base stations in many areas has been very intensive, particularly the three cities of Hangzhou, Ningbo and Wenzhou, part of the distance between the base station is only four or five meters, the selection of suitable sites for has become increasingly difficult. Stand too close, resulting in the same frequency and adjacent channel interference increases. In addition, the higher the antenna gain, the narrower its beamwidth in the vertical plane.The management of cell phone jammer can be implemented by sections
RF frequency hopping, power control, continuous emission, antenna diversity techniques, in order to reduce interference; without changing existing network infrastructure. However, despite the high utilization of this approach frequency, but the system interference increases, such as using anti-jamming measures are not effective and may have a greater impact on network quality and should therefore be used with caution. Concentric circles technique is usually the district is divided into the outer layer (Overlay) and inner (underlay), the outer layer of coverage for traditional honeycomb cell, while the inner layer of the coverage is mainly concentrated near the base station. In addition, the inner and outer layers of the frequency reuse coefficient is generally different from the outer layer of the general 4 × 3 reuse, while the inner layer closer to reuse, such as 3 × 3,2 × 3 or 1 × 3, etc. . cell phone jammer can be used for 24 hours 365 days continuously.
Depending on the implementation of concentric circles can be divided into ordinary concentric circles with the smart two kinds of double-layer network (IUO), the main difference between the two is that the transmit power of inner and outer layers of the inner switching algorithm.
In addition to the individual hot spots, for the time being can basically meet the need. Zhejiang Telecom GSM 5, expansion of the GSM network frequency range: 898.6 ~ 908.8MHz, a total of 10.2MHz. A network band extends to 885.0125MHz GSM network bands down extended to 14.4MHz 23 to 94 frequency points in the six expansion principle. At present, Zhejiang Telecom G base stations in many areas has been very intensive, particularly the three cities of Hangzhou, Ningbo and Wenzhou, part of the distance between the base station is only four or five meters, the selection of suitable sites for has become increasingly difficult. Stand too close, resulting in the same frequency and adjacent channel interference increases. In addition, the higher the antenna gain, the narrower its beamwidth in the vertical plane.The management of cell phone jammer can be implemented by sections
RF frequency hopping, power control, continuous emission, antenna diversity techniques, in order to reduce interference; without changing existing network infrastructure. However, despite the high utilization of this approach frequency, but the system interference increases, such as using anti-jamming measures are not effective and may have a greater impact on network quality and should therefore be used with caution. Concentric circles technique is usually the district is divided into the outer layer (Overlay) and inner (underlay), the outer layer of coverage for traditional honeycomb cell, while the inner layer of the coverage is mainly concentrated near the base station. In addition, the inner and outer layers of the frequency reuse coefficient is generally different from the outer layer of the general 4 × 3 reuse, while the inner layer closer to reuse, such as 3 × 3,2 × 3 or 1 × 3, etc. . cell phone jammer can be used for 24 hours 365 days continuously.
Depending on the implementation of concentric circles can be divided into ordinary concentric circles with the smart two kinds of double-layer network (IUO), the main difference between the two is that the transmit power of inner and outer layers of the inner switching algorithm.
Thursday, June 28, 2012
The cell phone jammer system is set as per the real site situation
The cell phone jammer system is set as per the real site situation
First to determine the coverage area. The purpose of the indoor coverage requires field strength coverage, while the base station signal radiation area provides an ideal signal coverage inside buildings. Therefore, the primary work of the engineering design survey to determine which areas of the base station coverage, which areas need to indoor distribution system to enhance the signal. When the investigation, should pay special attention to the traffic in busy areas, that is the most frequently used mobile phone, often in this region to design a distributed antenna. Then forecast to cover the effect to determine the engineering program. The site investigation will be basically to determine the distribution of the antenna position, and to determine the jurisdiction of each distributed antenna output power of each channel. So that the problem of cell phone jammer can be found out timely.
In order to make program planning more accurate field strength coverage prediction, often these areas. Specifically can take the following methods: emission unit with a signal generator and an indoor antenna group, issued the design of the corresponding output power in a distributed antenna location, will test the phone as a receiving unit, the corresponding coverage area test field strength, size, observe whether a good signal is received. Project has a good cost performance, engineering design needs to be selected to put a lot of the right uniform point distribution system. At this point, make sure that the system put a lot of all the parameters have been obtained so you can select the suitable interior uniform point distribution system construction. If the area of the examination is big, the high power cell phone jammer should be used.
China's mountainous wide expansion project to the construction of new base stations. Economically developed cities, towns, the number of users, large and obvious economic benefits, and for the economically less developed county, township, number of users is small, the large investment in the construction of base stations, not economic. Even in the modern city, tunnel, subway, underground shopping malls, parking and enclosed large buildings, due to the shielding effect of the mountains, the ground and buildings, mobile communications the weak letter points or blind spots, if construction of base stations in these small areas, it will cause a serious waste of financial resources in the spectrum resources. When the customer performs the installation and operation of cell phone jammer .
First to determine the coverage area. The purpose of the indoor coverage requires field strength coverage, while the base station signal radiation area provides an ideal signal coverage inside buildings. Therefore, the primary work of the engineering design survey to determine which areas of the base station coverage, which areas need to indoor distribution system to enhance the signal. When the investigation, should pay special attention to the traffic in busy areas, that is the most frequently used mobile phone, often in this region to design a distributed antenna. Then forecast to cover the effect to determine the engineering program. The site investigation will be basically to determine the distribution of the antenna position, and to determine the jurisdiction of each distributed antenna output power of each channel. So that the problem of cell phone jammer can be found out timely.
In order to make program planning more accurate field strength coverage prediction, often these areas. Specifically can take the following methods: emission unit with a signal generator and an indoor antenna group, issued the design of the corresponding output power in a distributed antenna location, will test the phone as a receiving unit, the corresponding coverage area test field strength, size, observe whether a good signal is received. Project has a good cost performance, engineering design needs to be selected to put a lot of the right uniform point distribution system. At this point, make sure that the system put a lot of all the parameters have been obtained so you can select the suitable interior uniform point distribution system construction. If the area of the examination is big, the high power cell phone jammer should be used.
China's mountainous wide expansion project to the construction of new base stations. Economically developed cities, towns, the number of users, large and obvious economic benefits, and for the economically less developed county, township, number of users is small, the large investment in the construction of base stations, not economic. Even in the modern city, tunnel, subway, underground shopping malls, parking and enclosed large buildings, due to the shielding effect of the mountains, the ground and buildings, mobile communications the weak letter points or blind spots, if construction of base stations in these small areas, it will cause a serious waste of financial resources in the spectrum resources. When the customer performs the installation and operation of cell phone jammer .
Wednesday, June 27, 2012
cell phone jammer is adopted to scare the dangerous animals away
Energy supply. Arc welding process to consume large amounts of electrical energy through a variety of welding power source to supply energy. The most common welding power source includes a constant current source and constant voltage power supply. In the arc welding process, the voltage applied to determine the length of the arc, the input current determines the output of the heat. Constant current power output constant current and voltage fluctuations are used for manual welding, manual arc welding and tungsten inert gas shielded arc welding. Because the current manual welding requirements remained relatively stable in the actual operation, the electrode position is difficult to ensure the same arc length and voltage will also change. Constant voltage power supply output voltage and constant fluctuations in the current. cell phone jammer is adopted to scare the dangerous animals away.
Therefore commonly used in automatic welding processes such as MIG arc welding, flux cored arc welding and submerged arc welding. These welding processes, arc length remains constant, any fluctuations occur because the distance between the welding head and the workpiece through the current changes to compensate. For example, if the welding head and the workpiece interval close to the current rapidly increases, making the solder joint at the heat surge, melting of the welding head section until the interval to restore to its original level [12]. The type of electricity used has a great influence on the welding. Power-welding process, such as the protection of the manual metal arc welding and MIG arc welding commonly used direct current, electrode can be connected to positive or negative. Welding, then the positive part will have a greater heat concentration. cell phone jammer is utilized to indicate the direction.
Therefore commonly used in automatic welding processes such as MIG arc welding, flux cored arc welding and submerged arc welding. These welding processes, arc length remains constant, any fluctuations occur because the distance between the welding head and the workpiece through the current changes to compensate. For example, if the welding head and the workpiece interval close to the current rapidly increases, making the solder joint at the heat surge, melting of the welding head section until the interval to restore to its original level [12]. The type of electricity used has a great influence on the welding. Power-welding process, such as the protection of the manual metal arc welding and MIG arc welding commonly used direct current, electrode can be connected to positive or negative. Welding, then the positive part will have a greater heat concentration. cell phone jammer is utilized to indicate the direction.
Tuesday, June 26, 2012
The specific requirement of cell phone jammer should be carefully obeyed
The specific requirement of cell phone jammer should be carefully obeyed.
Rotating prism table, so that the output beam with M2 Brewster incident angle N1 interface, the angle of rotation can be read out dial prism units, but also reflected light from the prism interface to determine the weakest, the angle determined with the prism Taiwan's screw lock. Adjusted M3 Mirror in the middle. In the prism angle A is placed in front of a white screen, adjust the frame on the two M3 pitch, horizontal screw, so that the beam along the same route back. M3 mirrors in the process of adjustment, you can see the white screen on the side from the prism of two out of two strings by multiple reflections spot. When the two strings overlap each spot at one point, the M3 mirror accurately so that the beam along the same route back. Remove the auxiliary mirrors M2, if the previous adjustment steps are to meet the requirements, then the laser can oscillate between the M1 and M3. And then carefully adjust the M3 mirror, the laser power to achieve the strongest. Rotating prism sets of fine-tuning screws, and other wavelengths of the laser will have appeared. The instruction of cell phone jammer includes the manufacture requirement of cell phone jammer .
Measured with multi-line monochrome laser output wavelength of various laser lines. Identify each of the laser output power with discharge current line relationship, write down the value of the maximum laser power and the corresponding optimal current value. Prism and the mirror match. Table 4 provides two kinds of prisms and mirrors applied three wavelength ranges. Glass prism at least laser lines is transferred out of four basic requirements of the experiment. Helium-neon laser and other research in the field of optical holography has been widely used, but because ordinary HeNe laser at higher power levels (ie, gain tube is longer) will have multiple longitudinal modes, some of the requirements do not apply to monochrome laser strong interference, measurement of field of study. Through the cavity frequency selection technology is a single-longitudinal mode HeNe laser has a broad application prospects. It is not convenient to arrange the customer to visit the production process of cell phone jammer .
Rotating prism table, so that the output beam with M2 Brewster incident angle N1 interface, the angle of rotation can be read out dial prism units, but also reflected light from the prism interface to determine the weakest, the angle determined with the prism Taiwan's screw lock. Adjusted M3 Mirror in the middle. In the prism angle A is placed in front of a white screen, adjust the frame on the two M3 pitch, horizontal screw, so that the beam along the same route back. M3 mirrors in the process of adjustment, you can see the white screen on the side from the prism of two out of two strings by multiple reflections spot. When the two strings overlap each spot at one point, the M3 mirror accurately so that the beam along the same route back. Remove the auxiliary mirrors M2, if the previous adjustment steps are to meet the requirements, then the laser can oscillate between the M1 and M3. And then carefully adjust the M3 mirror, the laser power to achieve the strongest. Rotating prism sets of fine-tuning screws, and other wavelengths of the laser will have appeared. The instruction of cell phone jammer includes the manufacture requirement of cell phone jammer .
Measured with multi-line monochrome laser output wavelength of various laser lines. Identify each of the laser output power with discharge current line relationship, write down the value of the maximum laser power and the corresponding optimal current value. Prism and the mirror match. Table 4 provides two kinds of prisms and mirrors applied three wavelength ranges. Glass prism at least laser lines is transferred out of four basic requirements of the experiment. Helium-neon laser and other research in the field of optical holography has been widely used, but because ordinary HeNe laser at higher power levels (ie, gain tube is longer) will have multiple longitudinal modes, some of the requirements do not apply to monochrome laser strong interference, measurement of field of study. Through the cavity frequency selection technology is a single-longitudinal mode HeNe laser has a broad application prospects. It is not convenient to arrange the customer to visit the production process of cell phone jammer .
Wednesday, June 20, 2012
Shipping Description of cell phone jammer
WAP portal with ads, and built-in advertising compared to advertising messages and voice class is the mobile phone advertising is still the most important form of advertising, but many times these ads will allow users to feel resentment, because it is the user most of the time not willing to push the case to force the user not only unwilling to accept, but also there is a reject, so even users with rich resources, operators will inevitably have to face the licensing mechanism. Establishment of mobile advertising user license mechanism, for consumers to decide whether to accept mobile advertising information, rather than passively, to accept the mandatory advertising information, not only can improve the recognition and perception of users, but also can enhance the precision marketing. A specific shielding position of cell phone jammer should be added for the signal dead zone.
According to Japan's successful experience, mobile advertising operations must be based on a strict licensing system, based on that advertisers and operators must obtain permission under the premise of the user to carry out advertising and marketing. We mentioned above the Japanese I-MODE mode often give away and receive calls in the form of value-added services to the users to watch the mobile advertising to compensate, in order to attract users to watch mobile advertising. In addition, Japan's regulatory authorities also introduced a number of specific provisions and penalties to ensure that mobile advertising must be sent in the user license basis. However, mobile advertising license in China to establish a mechanism can not be completed overnight. Mobile advertising itself as a strong technical, to establish licensing mechanism first breakthrough in technology, while China's current technology has not yet reached this level.
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