cell phone jammer has the complete frequency covering range

3rd Generation 3G is the English abbreviation of the third generation mobile communication technology. Relative to the first generation analogue cell phones (1G) and second-generation GSM, TDMA digital cell phones, etc. (2G), third-generation cell phones generally speaking, refers to wireless communications and the Internet and other multimedia communications with a new generation of mobile communication systems. It can handle images, music, video streaming and other forms of media, including web browsing, conference calls, e-commerce and other information services. In order to provide this service, wireless networks must be able to support different data transfer rate, ie indoor, outdoor, and driving environment can support at least 2Mbps (megabytes / second), 384kbps (kilobytes / per second) and 144kbps transmission speed. The personnel are carrying out the control wiring of cell phone jammer system.
Now 2G network bandwidth is 9.6Kpbs. 2.5G to 56Kpbs. 3G will have a wider bandwidth, the transmission speeds of up to 100 - 300Kbps, not only to transmit voice, but also transfer data to provide fast, convenient wireless applications, such as wireless access to Internet. However, part of Ericsson's products are a 17-bit IMEI code, such as T18sc and T28sc. It is the meaning of the top 15 and the general meaning of the same IMEI code, after the two is the version of code, the user is not important. IMEI code of the first six digits that TAC code. TAC code represents the cell phone model. Whether Nokia, Ericsson or Motorola's products, as long as the same type of cell phone, TAC code must be the same. Nokia 6150 IMEI code as the top six is definitely "493,002." The installation position of cell phone jammer plays an important role.
IMEI code of the 7,8 position that the FAC code, its meaning is the complete assembly is the last cell phone in which a factory. Each factory has its own special code, so this is not country-made code. However, the eyes of users will complete the final assembly process where the plant origin as a cell phone. Therefore, FAC code also can be considered the origin of the cell phone code. IMEI code of the 9 to 14 is the SNR code, is the factory cell phone number. Cell phone number of the factory serial number and other manufactured products, is for the factory's internal management services, the user is not very meaningful. IMEI code of the last code that SP is an alternate cell phone number, usually zero. However, there are some cell phone of the SP code is not zero, this is normal. Here's to the Nokia 6150, Motorola cd938, Ericsson T18sc do demonstrations to help understand. The main computer should be provided for cell phone jammer system.
A Nokia 6150, press the "* # 06 #", the screen appears "IMEI 493002407599521" words. "493 002" approved on behalf of the cell phone model is 6150; "40" represents the final assembly for the Beijing; "759 952" is the factory cell phone number; one is the alternate number. A Motorola cd938 press the "* # 06 #", the screen appears "447,769,804,451,095" word. "447 769" model is approved on behalf of the cell phone cd938; "80" on behalf of final assembly in China; "445 109" for the factory cell phone number; "5" is an alternate number. An Ericsson T18sc press the "* # 06 #", the screen appears "520027-19-012435-8-05" word. "520 027" approved on behalf of the cell phone model is T18sc; "19" is the final assembly on behalf of the United Kingdom; "012 435" is the factory cell phone number. The position of  cell phone jammer can influence the shielding effect of cell phone jammer .
"8" represents the alternate number; "05" for the version of the code. FAC code knowledge a lot of cell phone users do not know all the cell phones on behalf of FAC code of origin, major cell phone manufacturers are listed below the origin of the FAC and the corresponding code. Users will be transferred out after the IMEI code, in addition to place of origin, should pay attention to whether the code back of the cell phone's IMEI code (remove the battery to see), IMEI code on the box and warranty card on the same IMEI code. If not, then the cell phone is generally not the fake ones the shell of the old machines and shoddy products. If consistent, then your cell phone in general is a genuine. However, there may be a very small parallel, this time, you only have network card is then made look fake. The technical personnel are working on development of remote control function of cell phone jammer .

The dealer or customer can master installation of cell phone jammer under the instruction

Users can use anytime, anywhere wireless communication terminal to obtain instant information on the Internet or the company's Web site, the real wireless Internet access. Is the abbreviation of Code Division Multiple Access CDMA (Code Division Multiple Access), which is a branch of the digital technology - spread spectrum communication technology to develop a new and sophisticated wireless communications technology. It can meet the demand for mobile communication capacity and quality of high demand, with high spectrum efficiency, voice quality, confidentiality, call drop rate is low, electromagnetic radiation is small, large capacity, wide coverage, etc., can significantly reduce investment and reduce operating costs. CDMA technology is based on the principle of spread spectrum technology, will be transmitted with a certain signal bandwidth information data. More installation position should be added for cell phone jammer .
With a bandwidth much larger than the signal bandwidth, high-speed pseudo-random code modulation, so that the original data signal bandwidth is expanded, and then modulated by the carrier and send out. Receiver use the same pseudo-random code, and receive signals for bandwidth-related processing, the broadband signal into the original information data is despread narrowband signal, in order to achieve information and communication. CDMA 1X is the first phase of cdma2000 (rate higher than the IS-95, less than 2Mbps), the forward link data rates up to 144Kbps, the introduction of packet-switched network elements that can support mobile IP services. In the third generation mobile communications in the wireless interface to international proposals, the most widely noted that W-CDMA and cdma2000. cdma2000 is the United States to the ITU's third generation mobile communications air interface standard proposal is IS-95 standard to the third-generation evolution of technical system solutions. The new research and development center of cell phone jammer can accommodate 100 hundred people.
The use of spread spectrum CDMA 1X rate of SR1, meaning that the forward channel and reverse channel are used chip rate 1.2288Mbit / s direct line of single-carrier spread spectrum mode. Therefore, it can be easily and IS-95 (A / B) backward compatibility to achieve a smooth transition. Because CDMA 1X coherent demodulation with a reverse, fast forward power control, transmit diversity, Turbo coding and other new technology, its capacity is much higher than the IS-95. Under the same conditions, the Mandarin sound business case, the capacity is roughly twice the IS-95 system. CDMA 1X network can carry voice services as a platform, or as a packet data wireless access to Internet hosting platform, that can provide traditional voice services, it can provide users with end to end packet transfer mode data services. The video conference of cell phone jammers plays an important role.
This is a narrow-band CDMA (CDMAIS-95) broadband technology from CDMA technology, the main push by the United States, raised the standard from CDMA IS-95 (2G)-CDMA 2000 1X-CDMA 2000 3X (3G) evolution strategy . One CDMA 2000 3X and CDMA 2000 1X The main difference is that the application of multi-carrier technology, so by using the three-carrier bandwidth. GPRS is General Packet Radio Service the title, General Packet Radio Service, is a system based on GSM wireless packet switching technology to provide end to end, wide-area wireless IP connection. Popular speaking, GPRS is a high-speed data processing technology, the method is based on "clusters" in the form of sending data to the user's hand. GPRS is 2.5 generation mobile communication technology, is China Mobile's GSM network to 3G technology mainstream. The price negotiation of mobile phone jammer will achieve a good result.
GSM dial-up relative to the original circuit-switched data transmission mode, GPRS is packet switching technology, with "real-time online", "according to the amount of billing," "quick login", "high-speed transmission," "freely switch" advantages. Commercial applications are now 2.5G mobile communication technology is the convergence from 2G towards 3G technologies, breakthrough technology for 2G circuit-switched data transmission rate constraints, the introduction of packet switching technology, which allows data transfer rate of a qualitative breakthrough is a cross between between 2G and 3G over technology. Since 3G is a very huge project, which involves multi-level and complex, from the current 2G into 3G can not click on the connection between, so there range between 2G and 3G 2.5G. GPRS, HSCSD, WAP, EDGE, Bluetooth (Bluetooth), EPOC are the 2.5G technology and other technologies.  cell phone jammer has the specific standard.

The low power consumption of cell phone jammer

XIII, Party B and the personnel of production safety work in the outstanding contributions or achievements in a significant collective and the individual should be given recognition and material reward; B and the officers of the law occurred, violations and problems and in the safe production, civil construction and other standards of excellence are not actively cooperate with the activities of the Party the right to stop, education, and instructed its rectification, serious breach of responsibility by processing.The weight for cell phone jammer itself is only 200g.  Fourth, where the breach of the terms of the content of B, Party A Party B according to Shentong Group documents and "Shanghai Shentong Metro Construction Group Co., Ltd. received a security risk mortgage payment, use regulations," Shanghai Metro No. 191 [2006] breach of security responsibility to the text type of economic process, Party A Party B to give the responsibility for security breach if the economic process objections may request review; Party staff using their powers of malpractice, deliberately making things difficult behavior, the right to expose, requirements deal with. Fifth, where the B event of a security breach of contract award fees and security responsibilities shall be dealing with economic risk from the security deposit in the expense, of the specific measures detailed in attachment security risk mortgage payment.The weight for then antenna of cell phone jammer is only 100g.  XVI not covered by this Agreement the terms, both parties can negotiate additional changes as needed. In cases where the relevant state and city laws and regulations, inconsistent regulations, should the relevant state and city laws, regulations. XVII of this Agreement as an annex to the contract works both parties, after signing the contract into effect in engineering, and engineering contracts have the same legal effect. Engineering contract expires, termination of this Agreement. Eighth, Contact: B promises, in order to ensure safety rail transit construction work to proceed smoothly, 48 Shanghai Metro Line 13 Phase I, World Expo site dedicated traffic tie-line equipment supply and engineering services PSD Tender No. : 10,248,306 during the construction period, assigned comrades (engaged in rail safety management work or similar work experience with more than three years) is responsible for the safety of the works full-time production, civil construction, environmental protection, labor protection and management, such as the comrades of mobilization ( change) in a timely manner for transfer to the Party (change) procedures. Ninth, responsibility for security contract: The power of cell phone jammer is supplied by the battery. Party A: Name: Legal representative: to B: Name: Legal Representative: Address: (signature) on behalf of the meter: Tel: (Seal) (Signature) Address: (signed Chapter) on behalf of the meter: Tel: (Seal) (Signature) 49 Shanghai Metro Line 13 Phase I, World Expo site dedicated traffic tie-line equipment supply and engineering services PSD Tender No.: 10248306 I am the project manager as a security undertaking company on-site project manager (responsible for safety first), the construction site for the protection of the health of all employees, life and property safety, prevention and reduction of production safety accident, the effective protection of the environment and the surrounding lines, I solemnly pledge to the Party , working in strict compliance with the following duties and obligations: 1, conscientiously implement the State, and the Party of the higher safety and labor protection laws and regulations, mandatory standards, regulations and safety procedures,The power consumption of cell jammer  is very low.  the safety of the project, construction and civilization The first responsibility of the leaders of the negative environmental protection, the implementation of the Party during the development of regulations.

cell phone jammer has effective subsections

The project cost in 1000-5000 million site, you must configure three full-time safety management personnel; project cost to be configured in 5000-1 4-5 million full-time security management, set up a security officer, according to professional a full-time security management institutions, set up a separate site safety management office, setting up a safety management group is responsible for site safety management, project cost of 1 billion or more, and so to increase staffing, and personnel lists, titles, certificate number, etc. Party report for the record. cell phone jammer takes use of mini-power interference technology. Nine, B must urge the sub-unit is equipped with full-time safety management personnel for the various sub-units and external personnel of production safety work to be included in the scope of the unified management of the unit, clear requirements, signed a security agreement; on a regular basis for all construction workers for safety production and civilized construction and self-protection publicity and education, to improve safety awareness, strengthen the legal system; do daily pre-job safety of technical tests, do the "three posts, one commented on" work, special types of work, staff induction must meet the requirements of higher authorities, so that certificates, prohibited practice, study personnel to field operations, strict enforcement of safety rules for the construction workers to effectively provide a good working and living environment, to ensure safety in production. cell phone jammer has the effective subsections. X. B occurs due to poor management of security incidents, events or casualties, and take full responsibility by the B; B in the active rescue organization, rescue the injured, protect the scene at the same time, must be developed in strict accordance with the Party incident reporting and emergency management regulations for a limited period of time according to the procedure to the administrative department of construction, safety supervision departments and government reporting Party, shall not be late, concealed. 47 Shanghai Metro Line 13 Phase I, World Expo site dedicated traffic tie-line equipment supply and engineering services PSD Tender No.: 10248306 XI B should address the characteristics of the project, the nature, size and construction site hydrogeologic preparation of a good situation, "construction design" and various "special risk of large construction program," according to prescribed procedures must be reported to the trial procedures, cell phone jammer has no interception on the base station. the approval must be "contract" construction general contractor signature of the Chief Engineer shall not delegate to others forged signature or personal seal replaced, in line with State Council's "Construction Safety Management Regulations" Decree No. 393, did not develop or apply for the "construction design" and "more dangerous special construction plan" procedures examination of the project shall not construction; B must be developed before the start of the construction and organization of the implementation of safety precautions, and to all construction personnel security technology correspondent, in strict accordance with "construction design" and "program designed to" The security requirements of the construction, deep foundation pit excavation, underground tunneling expert must be in strict accordance with the approved implementation of the program, you need to change the relevant procedures according to prescribed procedures. mobile phone jammer has the very high portability.  XII B occurs where industrial accidents or other negative social impact of the event, the Party represented in the investigation, according to the consequences and impact on B according to the "breach of security responsibility" for the economic handling, accident and caused direct economic losses caused by Party B's responsibility to all the indirect economic loss borne by the Party.

The effective shielding radius of cell phone jammer

If this happens, we can phone antenna all done open, the local answer to the bad effects we need to make use of an antenna to receive signals; or not we can look at the screen and the signal strength if the signal does weak, it should be moved to the open position, for example, near the location of the window. cell phone jammer equips with the remote controller.  If the above measures still can not guarantee that your phone is the normal answer, it should check whether your phone is set up call forwarding and call barring, if it is reset can. 5 If the phone is answered, the information is sometimes there and sometimes none, in particular, small voice or just hear the noise may be your hands if the phone is answered when the information is sometimes there and sometimes no information when the phone is answered sometimes with and sometimes without the sound is very small, or just hear the noise when the machine by the electromagnetic waves in the vicinity. Connected to each other in the phone, the signal is electromagnetic waves near GSM or CDMA system machine by way transmission of radio waves in the air, and so inevitable in this process, the signal coherent with other waves.This type of cell phone jammer  permits you easily to operate.
Very mobile technology tutorial First you can buy in the very mobile baby, expressed gratitude for the average user, just hand the machine, there are many technical problems, and now according to buyers on-Want advice and to ask, more unified summarized summary, make the following tutorial, hope that you carefully read the very phone has its own technical team, cell phone hack, jailbreak, update, unlock, brush machine, there are dedicated people to research for clients that do the latest versions of most software, the best service, so that buyers feel that the buy is not just mobile phones, the intentions of a business, a good under our tutorial. solve the problem of your phone so that you can experience the joy of their play machine to solve the problem: 1: Can not view the contents of the memory card in the phone? The effective shielding radius of  cell phone jammer  is dependent on the strength signal in the given area. solution: feeling very used to use Nokia or some friend of the domestic mobile phone strange, thought it was to write the phone generally comes with file management functions, and view the contents of the memory card Andrews's mobile phone wooden, on the phone to install a file browser, the specific installation methods reference 6 software installation. 2: the phone can not connected to the computer? solution: Andrews phone system to connect the computer to read the memory card is in check there is development of the application inside the phone is set inside an unknown source inside the USB debugging checked, the data line connected to the computer, which is when the computer appears on the New Hardware Wizard, click Next, the installation fails, and then drop-down mobile phone screen on the phone, open the notification bar, inside look at the USB connection method, here words or less the same for different brands prompted me to choose a disk drive or read the memory card on OK and then the inside of my computer there is a removable disk, is that he, the contents of the phone's memory card. if it is or not, then please 6 software installation can be Oh.  mobile phone jammer will only jam your immediate surroundings. phone can not access the Internet? Solution: This is the largest number of customer inquiries, in fact, the Andrews system a good set up online, not again online to see the kind of phone add access points only need to install a software on the OK, the name of this software is called the sea table HIAPK installation method reference.

The average output power of cell phone jammer

Resulting in cell phone dropped. Call suddenly dropped, removable change position, try to avoid dead ends blind. Consecutive dropped phenomenon, with the departments concerned, made it clear that the location of the call in order to resolve as soon as possible. Phone call quality is not the cause and countermeasures along with social progress and development, the mobile phone has become an indispensable communication tool in people's lives, but people sometimes encounter the phone to bring our "trouble". Then  cell phone jammer can work well again for another 12 hours. Such as mobile phones in the pick of a very important phone call suddenly disconnected, then how that happens and how to solve it? 1, when the phone call often dropped the phone powered base station where the owners did not Power Supply Bureau phone powered base station where the owners did not pay the electricity to the power supply bureau and power outages, and the internal power supply up to maintain the normal work of a few hours. In addition, the signals between base stations cover each other, to pay the electricity and power outages in this region use mobile phones, there will be a similar situation, it can be said to signal interference signal interference. The average output power of mobile phone jammer is 33dBm. General this is rare, signal interference and no real solution. 2, when to call the regional switch will be because the conditions do not have a cell phone dropped. Calling area to switch when conditions do not have a cell phone dropped when we use the phone, if the move from one place to another place, such cell phone signal reception will be because of the changes in the user's location from a cell extended to another service district. Each service district of the channel idle state is random, is likely the user's call letter Road from the original cell to switch new cell's, the new district of the channels are in the peak hours, so are using mobile phones may be on because there is no signal transmission channel is forced to interrupt. This happens, under normal circumstances the user can not be solved only by the communications sector to achieve the smooth flow of communication channels. cell phone jammer can generate enough interference to jam all cell phone signals.  3, also may use the phone a phone switched on disconnection, or sometimes two or three times to dial to get through the use of mobile phones also may break a cell phone connected to occur, or sometimes to dial two or three times to get through this situation may be the fault of the network. As more and more use of mobile phone users, the network GSM or this case may be The network failure CDMA system is also increasingly complex range of equipment; at the same time because the network system device introduced relatively early, often versions than low ability to adapt is not strong, which led to the whole network system is not working properly. This case the user can not solve their own can only hope that the communications sector to maintain and manage the network system, to ensure the normal of the mobile communications.  cell phone jammer  can cover a range of 40m.4, of course, the phone dropped a common phenomenon that we went to a very remote place or in a closed building, often the phone suddenly disconnected this case, it is because your phone receives a signal suddenly becomes weak suddenly become very weak or not your phone receives a signal or not.

High integration of cell phone jammer

Commutation than the output filter current source type variable, GTOPWM current source inverter output filter capacitor can be greatly decreased type current source converter output filter capacitor can be greatly decreased, the current source inverter output filter capacitor M Figure 8-8 GTO-PWM current source inverter current source inverter can be greatly decreased but not eliminating the capacitor decreases, the filtering effect also followed, but can not be omitted. The imported elements can keep the high integration of cell phone jammer .capacitor after reducing the filtering effect also followed the decline in the quality of the output current waveform will fall, improving the quality of the motor current will fall by the quality of the current waveform, improving the quality of motor current through the GTO current harmonic elimination PWM switch mode switch mode current switch-mode harmonic elimination method to the alternating voltage source inverter: (d) Multi-level AC - DC - AC voltage source inverter multi-level AC-DC voltage source inverter voltage inverter in the PWM voltage inverter when the output voltage is higher, to avoid the series cause the voltage inverter output voltage is higher, the dynamic pressure at the same time reduce the output harmonic waves and the dynamic pressure at the same time reduce the output harmonic and du / dt of the inverter section recoverable multi-level multi-level way.  cell phone jammer can be easily connected to the tripod. 1, multi-level voltage inverter, the basic principles: , the basic structure of the basic principles of multi-level Voltage Source Inverter: (1) three-level inverter works: three-level inverter works: three-level inverter works three-level inverter phase shown in Figure 8-8: V1-V4 represents in a phase bridge shown: on behalf of the 4 shown in a phase bridge on behalf of the power switches in a phase bridge arm, the freewheeling diode, a power switch VD3-VD6 freewheeling diode, freewheeling diode VD1, VD2 clamping diode, clamping diode clamp diodes for each bridge arm by control power devices in Figure 8-9 three-level inverter turn on and off of the basic structure of the V1-V4 output point of the bridge arm available in three different level, see the opening and shutdown in the output of the bridge arm points available in three different level, turn on and off in output point of the bridge arm available in three different level in the following table: mobile phone jammer can be conveniently fixed to the tripod.  three-phase inverter bridge arm consisting of three-phase inverter composed of three bridge arm, according to the three-phase bridge arm, according to the three-phase bridge arm of U, V, W, different combinations, different combinations, and ultimately available to the three-level inverter = 2733 switch mode. three o'clock level inverter output voltage and filter output voltage map picture shows the point level inverter output voltage and by the filter output voltage waveforms of the motor. picture shows the point level inverter output voltage and by the filter output to the motor voltage waveforms before the filter, the output voltage harmonic distortion 29% filtered down to about 4 percent before the electric filter, the machine's current harmonic distortion can be reduced from 17% to about 2 percent three-point level inverter main circuit of three-point-level inverter main circuit structure of three-level voltage source inverter output voltage, three-level voltage source inverter output voltage and current waveform in Figure protect the common mode voltage limiting circuit limiting circuit M reactor Figure 8-10 three-level inverter shown in Figure 8 -9 to the main circuit diagram of three-level variable products, cell phone jammer is ecologically friendly.  the rectifier circuit to the main circuit of the three-level variable product structure diagram, rectifier circuit 12 pulse three-level converter products main circuit structure diagram red diode pulse as shown in Figure rectifier structure.

Stable operation of cell phone jammer

The midpoint between the motor windings of the motor insulation. affect the motor insulation. more current source inverter types, the main series diode (LED) current source inverter types are more, there are a series diode (LED) The output filter phase change type, load commutation type and style.The appearance of sparking may happen when turning on or off cell phone jammer . device commutation type, load change-phase GTO-PWM type. type a series of diode current source inverter series diode current source inverter connected in series diode current source inverter inverter circuit output filter commutation current source inverter output filter commutation current source inverter: commutation current source inverter output filter M pattern 8-7 output filter to change the phase current source inverter output filter to change the phase current source inverter output filter to change the phase current source inverter output filter into the SCR into the output filter change phase current source inverter output filter line commutation. filter capacitor start and low speed will not achieve the basic change relative to the role of the line to change the start and low speed, filter capacitor will not achieve the basic commutation effect is generally taken at the start and low-speed filter capacitor will not achieve the basic change with the role, in general, discontinuous current commutation. The appearance of sparking should be avoided for cell phone jammer .Whenever the inverter side want to change, try to make input to the inverter current intermittent commutation method when the inverter side SCR want to change when trying to input to the inverter to shed whenever the inverter side want to change the direct current drops to zero, so that the inverter side to the all the SCR temporary shutdown, and then control the DC shed drops to zero, inverter side, all the temporary shutdown, temporarily shut off to the commutation should be guided through the SCR plus the trigger pulse DC power supply is restored, together with the trigger pulse. conduction should resume the DC power to the commutation coupled with SCR trigger pulse current will trigger the order flows through the new conduction in order to achieve from one phase to another, the current will trigger new turn-on order flows through a phase converter intermediate circuit is used off flow, a phase converter. The slow-start design can solve the problem of sparking for mobile phone jammer .Figure 8-6, the intermediate circuit is used for drying, for drying the intermediate circuit is the blocking time number one hundred microseconds. Another way to blockade of power, one hundred microseconds Another way to block the power supply side rectifier to the inverter state, the DC link current, the rapid decay of the purpose to achieve short-term drying. DC link current, the rapid decay has reached a short-term drying purposes. GTO - PWM current source inverter current source inverter: inverter current source GTO-PWM current source inverter with current source inverter with GTO power current source inverter part inverter power devices as inverter part, as shown in not needed for the forced shutdown of the commutation circuit, the rate of the device, as shown in Figure 8-7, the GTO does not need to be used to force the turn-off commutation circuit, do not qualify for for the forced shutdown of the commutation circuit rated voltage for AC 6000V inverter, three inverter side can be used every arm of the inverter, the rated voltage AC inverter 6000V GTO series as a switch, there are also steady state and dynamic series as a switch in series to use as a switch to pressure the problem.The imported elements can maintain the stable operation of cell phone jammer .  In addition, compared to the output filter for the phase current source type variable, pressure.

The technology of interdiction code has been adopted forcell phone jammer

It can be said that the designer level of the decision of the vitality of products and product grade level, high-grade products is not necessarily a high cost, the use of low-cost high-grade products is the embodiment of the designers of high levels of high-quality. I mainly want to talk about the first two, the latter two later. 1 to review whether the design is reasonable and reliable, including the manufacturing method of plastic parts mold direction, mode gradient, core pulling, structural strength, circuit installation (and electronic engineering support) is reasonable. According to design requirements to determine whether the manufacturing process can achieve. Including mold manufacturing, product assembly, shell spray, silk English material selection, supply of spare parts to be procured. The antenna of cell phone jammer will keep vertical pointing to the sky.
Determine whether the product features to achieve, whether the user best. Four specific structural design, and identify each part of the manufacturing process. Pay attention to the structural strength of the plastic parts, installation of positioning, fastening methods, product variant, the components of the installation location, safety and regulatory requirements, and determine the best assembly line. Structural design to minimize the difficulty of the mold design and manufacturing, to improve the efficiency of the injection molding production, minimal to reduce mold and production costs. Make sure the entire production process, testing methods, to ensure product reliability. A plastic material selection of ways to understand the performance of plastic engineering plastics molding sometimes appeared very strange. The area along pointing direction of directional antenna of cell phone jammer will be the area where the shielding signal will transmit farthest.
The answer to a molding problem may be completely different from another molding. This may be because of these examples involve two essentially incompatible with the plastic resin. This paper will these materials the nature of the differences between the various materials to be discussed, in order to enhance the understanding of the mechanism of the injection molding process. Measurement and control of the injection in the injection molding is very important. Although these measurements are relatively simple, but the majority of injection molding machines are not enough temperature sampling point or line. In most injection molding machine, the temperature by the thermocouple sensor. A thermocouple is basically composed of two different wire tail phase. If one end than the other end of the heat, will produce a tiny telecommunications; more heated, the stronger the signal. Use many cell phones of various frequency channels to test shielding effect of mobile phone jammer at site.
Temperature control thermocouple is also widely used as sensors for temperature control system. In the control apparatus, set the desired temperature, the sensor and the set point temperature is compared. In this simple system, when the temperature reaches the set point, it will turn off power after the temperature dropped again to open. This system, known as the opening and closing control, because it is either on or off. ? molten plastic temperature of the melt temperature is very important, the use of radio material cylinder temperature is only guidance. Melt temperature can shoot the mouth at the measure or the use of air injection method to measure the The injection cylinder temperature setting depends on the melt temperature, screw speed, back pressure, shoot feeding quantity and injection cycle. According to this, the position of cell phone jammer can be predicted when doing the honeycomb position arrangement in the large area.
If you are not processing a particular level of plastic experience, please start from the lowest setting. In order to facilitate control, shooting material cylinder sub-district, but not all are set to the same temperature. If the operation time is long or operating at high temperatures, set the temperature set to a lower value, which will prevent plastic premature melting and diversion. Before the start of injection, to ensure that the hydraulic oil, closed hopper, mold and shoot material cylinder in the correct temperature. ? The injection pressure which is caused by the pressure of the plastic flow can be used in the nozzle or hydraulic line sensor to measure. It has no fixed value, the mold filling more difficult, the injection pressure increases, the injection line pressure and injection pressure are directly related. The signal emission performance and distribution of directional antenna of cell phone jammer will be described as follows.

cell phone jammer can be used for the international purpose

By the specialized Pprt Reliability Laboratory to micro 0.5m drop test to be done 300 times / surface (the cell phone has six faces), 2m drop test each side to do first, real people thrown into the cell phone desktop, cell phone battery, is also subject to at least 4m height alone toward the ground impact fall 100 times and can not rupture. The cell phone is in the adaptability of the test cell phones in different temperature environments, the low temperature is usually in the minus 20 degrees Celsius, high temperature is 80 degrees Celsius. Dripping test using a special cabinet to do the simulation sweating (water into the salt must be better than columns), and takes about 30 hours. It is recommended that customer should test the shielding distance of cell phone jammer.
H4 hardness of the pencil to draw 100 squares on a cell phone case to see whether the cell phone's shell will fall off the paint, some more demanding cell phones, in the shell of the cell phone and then smearing the lie that some brand-name cosmetics, to see whether cell phone paint a different chemical composition odor or Diaoqi of possible. Clamshell flip cell phone 100 000 to check the cell phone casing wear and tear, with a flip of the simulation machine, it can be set to flip the intensity and angle. Jig caught two, a left twist, a right twist, the main strength of the test of cell phone housing and cell phones face large-scale devices. cell phone jammer can be used for the international purpose.
Electrostatic discharge gun all metal contact points for cell phones hit test time is about 300ms-2s or so, and within a humidity-controlled room, while the charger will have the same test. With the power of machines to set the keyboard to hit 100 000 times, if each key of the user 100 is 1000 days, equivalent to using the cell phone about three years time. The cell phone into specific boxes, small sand hairdryer preach up, after about three hours, open the cell phone to see whether the cell phone's internal sand to enter, if there is not good enough, then the cell phone closed, its structural design to be re-adjusted. Checking signal strength of the cell phone is not enough for checking working status of cell phone jammer.
The cell phone casing materials for general use PC / ABS alloy forming join masterbatch. If you have a metallic finish, I do not spray paint is not enough; some black casing color off. Model-GE C1100 C1200 (flame retardant) C1110 (flame retardant) 2850 2950 (high flow) GE expensive (~ 28000/MT), the color is more expensive. The vast majority of cell phone housing (80 ~ 90%) GE's C1110, C1200, C1200HF do cell phone case, can paint, you can also plating, as well as special effects, make a direct effect of paint and metal. Do pay attention to compatibility agent selected, high temperature paint to warp. When testing whether a point is in the shielding range of mobile phone jammer, hand-hold the cell phone and keep it in the position for more than half a minute.
Bayer T specification (non-flame-retardant PC / ABS) is commonly used in cell phone casing. (Nokia, the Motorola, Philips, Siemens, Ericsson (Sony) ....) have with the T series. The T-45: electroplating. Painting (Alcatel, Sony-Ericsson) T-65: painting (Sony-Ericsson, Nokia) T-85: high strength (Siemens, Motorola) notified to the structural design of the cell phone products in cell phone design is the key product features, which requires not only in harmony with the appearance of the product, but also to consider the various aspects of the order of production assembly, painting, printing, mold design and manufacturing. The shape and structure design of cell phone products involves knowledge of a wide range of materials selection; 2. Surface treatment; processing means; packaging and decoration; the use of these factors directly affect the life of cell phone products and appearance of the image changes. The static testing of cell phone jammers should be completed in every point.