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.
Thursday, December 29, 2011
Wednesday, December 28, 2011
Cell phone jammer will use equally spaced positions
GPRS due to its immediate online features for users, can be said that all the time on-line state. GPRS technology also allows service providers to charge based on the amount of data transferred, rather than simply the time-line billing. The technology and the GSM network with transmission speed up to 115kbps. HSCSD (High-speed circuit-switched data services, high-speed circuit switched data) This is an upgraded version of GSM networks, HSCSD (High Speed Circuit Switched Data) can be transmitted simultaneously through multiple hours. cell phone jammeronly interferes with the downlink and will not influence the base station with effective divisions.
Not just a single division only, so the transmission speed can be significantly improved to the usual two to three times. At present, Singapore's M1 and SingTel Mobile are using HSCSD system, the transmission speed can achieve 57.6kbps. HSCSD is a GSM network upgrade that can dramatically improve the transmission speed to the usual two to three times. WAP (Wireless Application Protocol) Wireless Application Protocol, is a mobile terminal to provide Internet content and advanced value-added services, global harmonization of open protocol standards, is a simplified wireless Internet Protocol. Internet and WAP cell phone technology will combine to make the Internet anytime, anywhere access to rich resources to become a reality. The shell ofcell phone jammercan prevent against the explosion, water and burning.
WAP service is a cell phone directly to the Internet, by cell phone WAP "browser" browser wap site service, can enjoy browsing news, stock information, mail, online gaming, chat and other applications. Network access through GPRS WAP, can take advantage of the access time is short (2 seconds access) high speed, always-on, switch and easy. WAP 2.0 is based on the XHTML for WAP and WEB programming as a closer. WAP (Wireless Application Protocol) is a detailed description of how to communicate transmission, information coding, and be applied to wireless devices, global open standard, which won the support of more than 200 companies, Ericsson, Nokia and Motorola, are all WAP-sponsors. Phenomenon of intentionally damaging cell phone jammer should be prevented.
In contrast, from understanding the meaning of the terms, WAP may be the direct or wireless access protocol called wireless Internet protocol, which standardized the format of web browsing and communication protocols such as TCP / IP and so on. The BlueTooth is also a wireless protocol, but more specific BlueTooth standardized hardware and frequency of application and so on. WAP (wireless communication protocol) is a digital cell phone, Internet or other personal digital assistant machine (PDA), computer applications to communicate between an open global standard. The birth of this standard is the result of efforts WAP Forum members, WAP Forum in June 1997 by Nokia, Ericsson, Motorola and Wireless Planet (Unwired Planet) got together and formed the. cell phone jammer can prevent using of cell phone from making the noise in the meeting.
The goal is to WAP WAP this technology, the Internet can be a lot of information and the introduction of a variety of services to cell phones, PALM and other wireless terminals being. No matter where you are, when if you need information, you can open your WAP cell phone and enjoy the endless online information or online resources. Which, WAE layer containing micro-browser, WML, WMLSCRIPT interpreter and more. WTLS layer of encryption for wireless e-commerce and wireless transmission of data to provide basic security functions. The electric carrier wave is the technical core of the wholecell phone jammersystem.
Not just a single division only, so the transmission speed can be significantly improved to the usual two to three times. At present, Singapore's M1 and SingTel Mobile are using HSCSD system, the transmission speed can achieve 57.6kbps. HSCSD is a GSM network upgrade that can dramatically improve the transmission speed to the usual two to three times. WAP (Wireless Application Protocol) Wireless Application Protocol, is a mobile terminal to provide Internet content and advanced value-added services, global harmonization of open protocol standards, is a simplified wireless Internet Protocol. Internet and WAP cell phone technology will combine to make the Internet anytime, anywhere access to rich resources to become a reality. The shell ofcell phone jammercan prevent against the explosion, water and burning.
WAP service is a cell phone directly to the Internet, by cell phone WAP "browser" browser wap site service, can enjoy browsing news, stock information, mail, online gaming, chat and other applications. Network access through GPRS WAP, can take advantage of the access time is short (2 seconds access) high speed, always-on, switch and easy. WAP 2.0 is based on the XHTML for WAP and WEB programming as a closer. WAP (Wireless Application Protocol) is a detailed description of how to communicate transmission, information coding, and be applied to wireless devices, global open standard, which won the support of more than 200 companies, Ericsson, Nokia and Motorola, are all WAP-sponsors. Phenomenon of intentionally damaging cell phone jammer should be prevented.
In contrast, from understanding the meaning of the terms, WAP may be the direct or wireless access protocol called wireless Internet protocol, which standardized the format of web browsing and communication protocols such as TCP / IP and so on. The BlueTooth is also a wireless protocol, but more specific BlueTooth standardized hardware and frequency of application and so on. WAP (wireless communication protocol) is a digital cell phone, Internet or other personal digital assistant machine (PDA), computer applications to communicate between an open global standard. The birth of this standard is the result of efforts WAP Forum members, WAP Forum in June 1997 by Nokia, Ericsson, Motorola and Wireless Planet (Unwired Planet) got together and formed the. cell phone jammer can prevent using of cell phone from making the noise in the meeting.
The goal is to WAP WAP this technology, the Internet can be a lot of information and the introduction of a variety of services to cell phones, PALM and other wireless terminals being. No matter where you are, when if you need information, you can open your WAP cell phone and enjoy the endless online information or online resources. Which, WAE layer containing micro-browser, WML, WMLSCRIPT interpreter and more. WTLS layer of encryption for wireless e-commerce and wireless transmission of data to provide basic security functions. The electric carrier wave is the technical core of the wholecell phone jammersystem.
Response time of switching on or off is short for cell phone jammer
Traffic channel in different frequency bands allocated to different users. Systems such as TACS, AMPS systems. Frequency division multiple access communication system is the total band is divided into a number of equally spaced channels (also known as channels) assigned to different users. These channels do not overlap each other, and its width should be able to transmit a digital voice information, and no significant between adjacent channel crosstalk. FDMA, TDMA and CDMA difference. Frequency division multiple access (FDMA) is the use of frequency modulation of the multiple access technology. Traffic channel in different frequency bands allocated to different users. This new unit ofcell phone jammeris considered as the supplementary for the old customer to reduce the repeated investment.
Systems such as TACS, AMPS systems. Time division multiple access (TDMA) is the use of time division multiple access technology. Traffic channel at different times assigned to different users. Such as GSM, DAMPS and so on. CDMA (Code Division Multiple Access) is the use of spread spectrum CDMA technology. All users at the same time, the same frequency band, depending on the traffic channel coding gain. The current digital mobile communication network through which access methods are FDMA, TDMA systems (GSM, DAMPS). Spectrum efficiency in the simulation system is about three times the capacity is limited; in voice quality 13kbit / s coding is also difficult to achieve the level of wired cell phones, FTDMA comprehensive system of higher business, data and voice can be integrated. The tranquility inside cinema, recording room, performance hall can be kept through cell phone jammer.
However, terminal access speed is limited (up to 9.6kbit / s TDMA system without soft switching function, which can easily dropped calls, affecting the quality of service z; TDMA system of international roaming agreement is subject to further refinement and development. Which is not modern TDMA cellular mobile the best wireless access communications, and CDMA Code Division Multiple Access technology perfectly suited to modern mobile communications network required large capacity, high-quality, integrated services, soft switching, international roaming, etc. for commercial applications are now 2.5G mobile communication from 2G towards 3G technology is the convergence of technology, breaking the circuit-switched technology for 2G data rate constraints, the introduction of packet switching technology, which allows data transfer rate of a qualitative breakthrough. The communication between prisoner and visitor can be shielded in the prison for cell phone jammer
Is a range over between 2G and 3G technology. GPRS, HSCSD, WAP, EDGE, Bluetooth (Bluetooth), EPOC are the 2.5G technology and other technologies. GPRS (General Packet Radio Services) of Chinese as a general packet radio service, has been hailed as the GSM 2.5G, is a system based on GSM wireless packet switching technology to provide end to end, wide-area wireless IP connection speed of 53.6kbps . With "real-time online", "according to the amount of billing," "quick login", "high-speed transmission," "freely switch" advantages. More simply, GPRS is a high-speed data processing techniques, methods based on "group" in the form of sending data to the user's hand. Although the GPRS network as the existing GSM transition to third generation mobile communication technology transition, but in many ways it has significant advantages. Response time of switching on or off is short for cell phone jammer.
By using "packet" technology, user access is relatively stable, short-term to avoid unnecessary distress caused. In addition, the use of GPRS and WAP and the Internet in different ways, as with WAP Internet access at home, the first "dial-up connection", while the Internet can not be used after the cell phone line, but it is more advantageous GPRS, download data and calls can be the same time. Technically, the sound transmission (ie, calls) to continue to use GSM, and data transmission can use GPRS, so, put the cell phone applications to a higher level. cell phone jammer has no radiation towards the human body.
Systems such as TACS, AMPS systems. Time division multiple access (TDMA) is the use of time division multiple access technology. Traffic channel at different times assigned to different users. Such as GSM, DAMPS and so on. CDMA (Code Division Multiple Access) is the use of spread spectrum CDMA technology. All users at the same time, the same frequency band, depending on the traffic channel coding gain. The current digital mobile communication network through which access methods are FDMA, TDMA systems (GSM, DAMPS). Spectrum efficiency in the simulation system is about three times the capacity is limited; in voice quality 13kbit / s coding is also difficult to achieve the level of wired cell phones, FTDMA comprehensive system of higher business, data and voice can be integrated. The tranquility inside cinema, recording room, performance hall can be kept through cell phone jammer.
However, terminal access speed is limited (up to 9.6kbit / s TDMA system without soft switching function, which can easily dropped calls, affecting the quality of service z; TDMA system of international roaming agreement is subject to further refinement and development. Which is not modern TDMA cellular mobile the best wireless access communications, and CDMA Code Division Multiple Access technology perfectly suited to modern mobile communications network required large capacity, high-quality, integrated services, soft switching, international roaming, etc. for commercial applications are now 2.5G mobile communication from 2G towards 3G technology is the convergence of technology, breaking the circuit-switched technology for 2G data rate constraints, the introduction of packet switching technology, which allows data transfer rate of a qualitative breakthrough. The communication between prisoner and visitor can be shielded in the prison for cell phone jammer
Is a range over between 2G and 3G technology. GPRS, HSCSD, WAP, EDGE, Bluetooth (Bluetooth), EPOC are the 2.5G technology and other technologies. GPRS (General Packet Radio Services) of Chinese as a general packet radio service, has been hailed as the GSM 2.5G, is a system based on GSM wireless packet switching technology to provide end to end, wide-area wireless IP connection speed of 53.6kbps . With "real-time online", "according to the amount of billing," "quick login", "high-speed transmission," "freely switch" advantages. More simply, GPRS is a high-speed data processing techniques, methods based on "group" in the form of sending data to the user's hand. Although the GPRS network as the existing GSM transition to third generation mobile communication technology transition, but in many ways it has significant advantages. Response time of switching on or off is short for cell phone jammer.
By using "packet" technology, user access is relatively stable, short-term to avoid unnecessary distress caused. In addition, the use of GPRS and WAP and the Internet in different ways, as with WAP Internet access at home, the first "dial-up connection", while the Internet can not be used after the cell phone line, but it is more advantageous GPRS, download data and calls can be the same time. Technically, the sound transmission (ie, calls) to continue to use GSM, and data transmission can use GPRS, so, put the cell phone applications to a higher level. cell phone jammer has no radiation towards the human body.
To expand the cell phone call frequency
GSM digital cell phone voice is digitized before being sent over the wireless channel, it is not as easy as analog cell phone interference, so a clear voice call, a small disturbance. However, because the digital transmission of voice, there are also voice some of the shortcomings of distortion. Machine analog cell phone voice distortion better than the GSM digital machine. Now, the relevant departments are studying the development of more advanced digital voice encoding techniques to reduce the GSM cell phone voice distortion. CDMA digital networks: CDMA is the acronym for Code Division Multiple Access (Code Division Multiple Access). The fourth characteristic is the high cost performance of cell phone jammer.
It 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. Industry operators are trying to increase their number of users of the system, reducing the cost per user, and create greater profits and actively strengthen market penetration. CDMA technology is to solve the problem of digital communication technologies. The so-called "GSM / CDMA dual-mode cell phone" refers to cell phone can support both GSM and CDMA network communication technology. cell phone jammer can ensure the safety and confidentiality in the workshop.
It is based on the actual operating environment or from the need to make a choice, which play a role in better network technology, which switches to cell phone mode let go, and if in one mode, the mobile communication quality is not high or there other adverse phenomena of communication, free to work on another network mode, it actually is to expand the cell phone call frequency, and greatly improve the stability of communication only. TDMA (Time Division Multiple Access): is the abbreviation for Time Division Multiple Access, which is a use of Time-Division Multiplexing (Time Division Multiple Access) to provide wireless digital services technology, which represents a digital cell phone system transmission technology. The working power supply of cell phone jammer is AC 220V/3W.
TDMA to a radio frequency into multiple time slots, then these time slots allocated to multiple calls. Thus, a radio can support multiple data channels, now that technology has become today's D-AMPS and GSM system is based. (A digital transmission technology, the radio frequency is divided into different time slot to be allocated to a number of calls.) FDMA (Frequency Division Multiple Access): FDMA is a data communications technology that is allocated to different users in the same slot The frequency of the different channels. According to this technique, the frequency division multiplexing in the system of centralized control of the frequency bands allocated to the user upon request. Compared with the fixed distribution systems, frequency division multiple access channel capacity required to dynamically exchange. cell phone jammeradopts the white-aluminum shell of high heat dissipation performance.
In FDMA systems, a channel assigned to the user, that is the spectrum, a spectrum that is used as the forward channel of the base station to mobile station direction of the channel, and one for the reverse channel that is the direction of the mobile station to base station channel. This communication system base station must transmit and receive multiple signals at different frequencies, any communication between two mobile users have to transit through the base station, which must occupy two channels (2 spectrum) in order to achieve duplex communication. All previous analog communication systems using FDMA. Frequency division multiple access (FDMA) is the use of frequency modulation of the multiple access technology. The shielding frequency of cell phone jammer can be customized according to requirements of customers.
It 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. Industry operators are trying to increase their number of users of the system, reducing the cost per user, and create greater profits and actively strengthen market penetration. CDMA technology is to solve the problem of digital communication technologies. The so-called "GSM / CDMA dual-mode cell phone" refers to cell phone can support both GSM and CDMA network communication technology. cell phone jammer can ensure the safety and confidentiality in the workshop.
It is based on the actual operating environment or from the need to make a choice, which play a role in better network technology, which switches to cell phone mode let go, and if in one mode, the mobile communication quality is not high or there other adverse phenomena of communication, free to work on another network mode, it actually is to expand the cell phone call frequency, and greatly improve the stability of communication only. TDMA (Time Division Multiple Access): is the abbreviation for Time Division Multiple Access, which is a use of Time-Division Multiplexing (Time Division Multiple Access) to provide wireless digital services technology, which represents a digital cell phone system transmission technology. The working power supply of cell phone jammer is AC 220V/3W.
TDMA to a radio frequency into multiple time slots, then these time slots allocated to multiple calls. Thus, a radio can support multiple data channels, now that technology has become today's D-AMPS and GSM system is based. (A digital transmission technology, the radio frequency is divided into different time slot to be allocated to a number of calls.) FDMA (Frequency Division Multiple Access): FDMA is a data communications technology that is allocated to different users in the same slot The frequency of the different channels. According to this technique, the frequency division multiplexing in the system of centralized control of the frequency bands allocated to the user upon request. Compared with the fixed distribution systems, frequency division multiple access channel capacity required to dynamically exchange. cell phone jammeradopts the white-aluminum shell of high heat dissipation performance.
In FDMA systems, a channel assigned to the user, that is the spectrum, a spectrum that is used as the forward channel of the base station to mobile station direction of the channel, and one for the reverse channel that is the direction of the mobile station to base station channel. This communication system base station must transmit and receive multiple signals at different frequencies, any communication between two mobile users have to transit through the base station, which must occupy two channels (2 spectrum) in order to achieve duplex communication. All previous analog communication systems using FDMA. Frequency division multiple access (FDMA) is the use of frequency modulation of the multiple access technology. The shielding frequency of cell phone jammer can be customized according to requirements of customers.
Tuesday, December 27, 2011
How to prolong the run time of cell phone jammer?
Resistor in parallel with two shielding materials, respectively, the reluctance and the reluctance of space, with the circuit analysis method to calculate the magnetic field of the shunt, which can calculate the shielding effectiveness.
The external cladding liner UV stable, moisture, wind, anti-cleaning solvent, then the internal coating of metal processing and high electrical conductivity. Another recent innovation is the EMI gasket upload a plastic clip with metal liner compared to traditional repression, its light weight, assembly time is short, and lower cost, so the more market appeal. There is no electric leakage, electric arcing and breakdown when tested according to the following conditions for the adapter of cell phone jammer.Conclusion devices generally need to be shielded, because the structure itself, there are some slots and gaps. Shielding required by some basic principles can be identified, but theory and reality is still a difference. For example, a frequency in the calculation of the size and pad pitch signal strength must also be considered, as in a device when multiple processors are used in the case. Surface treatment and long-term shielding gasket design is to achieve a key factor in EMC performance.
Low-frequency electromagnetic field analysis of a shield for many people, low-frequency magnetic interference is one of the most difficult to deal with interference, such interference is powered by DC current or AC current generated. DC transmission line of the adapter of cell phone jammer: no oxidization at DC end and no wrong connection order.For example, due to the induction furnace steel-making tens of thousands of amps of current, will produce a strong magnetic field around this control system in a strong magnetic field causes the magnetic sensitive device failure, the most common device is a magnetic-sensitive color CRT monitor. In the magnetic field, the display will occur on the screen image jitter, image color distortion, resulting in display quality is severely degraded, if not impossible to use. Low-frequency magnetic fields tend to decay rapidly with distance, so in many cases, the magnetic field sensitive devices away from magnetic interference source is a very effective reduction measures. But space constraints and can not take this measure, the shield is a very effective measure.Aging of the adapter of cell phone jammer: after the aging test, the surface temperature should be no more than 65℃; the surface and bottom shell have no deformation and burning; every performance index is within the specification range. But to note that low-frequency magnetic field shielding and RF shielding and is completely different, you can use beryllium copper RF shielding composite materials, silver, tin or aluminum and other materials, but these materials without any shielding effect of the magnetic field. Only the high permeability of the ferromagnetic alloy can shield the magnetic field. 1 according to the basic principles of the basic principles of electromagnetic shielding, low-frequency magnetic field due to its low frequency, skin effect is very small, the absorption loss is very small, and because of its low impedance, return loss is also small, so very simply by absorption and reflection difficult to obtain the required shielding effectiveness. Low-frequency magnetic field on this, through the use of high magnetic permeability material to provide bypass to achieve shielding, shown in Figure 1.Drop test of the adapter of cell phone jammer: after the drop test, the shell has no breaking, plug has no looseness or falling and the electrical performance is normal. As a high permeability shielding material, the magnetic field so as to provide a low reluctance path, so the space will be concentrated in the magnetic field shielding material, so that sensitive components from magnetic interference. Figure 1 provides a high magnetic permeability material bypass this mechanism played a role in shielding from the point of view, apparently shield the magnetic field component of the more diverting, the higher the shielding effectiveness. According to this principle, we can use the method of calculating circuit to calculate the magnetic shielding effect.
The external cladding liner UV stable, moisture, wind, anti-cleaning solvent, then the internal coating of metal processing and high electrical conductivity. Another recent innovation is the EMI gasket upload a plastic clip with metal liner compared to traditional repression, its light weight, assembly time is short, and lower cost, so the more market appeal. There is no electric leakage, electric arcing and breakdown when tested according to the following conditions for the adapter of cell phone jammer.Conclusion devices generally need to be shielded, because the structure itself, there are some slots and gaps. Shielding required by some basic principles can be identified, but theory and reality is still a difference. For example, a frequency in the calculation of the size and pad pitch signal strength must also be considered, as in a device when multiple processors are used in the case. Surface treatment and long-term shielding gasket design is to achieve a key factor in EMC performance.
Low-frequency electromagnetic field analysis of a shield for many people, low-frequency magnetic interference is one of the most difficult to deal with interference, such interference is powered by DC current or AC current generated. DC transmission line of the adapter of cell phone jammer: no oxidization at DC end and no wrong connection order.For example, due to the induction furnace steel-making tens of thousands of amps of current, will produce a strong magnetic field around this control system in a strong magnetic field causes the magnetic sensitive device failure, the most common device is a magnetic-sensitive color CRT monitor. In the magnetic field, the display will occur on the screen image jitter, image color distortion, resulting in display quality is severely degraded, if not impossible to use. Low-frequency magnetic fields tend to decay rapidly with distance, so in many cases, the magnetic field sensitive devices away from magnetic interference source is a very effective reduction measures. But space constraints and can not take this measure, the shield is a very effective measure.Aging of the adapter of cell phone jammer: after the aging test, the surface temperature should be no more than 65℃; the surface and bottom shell have no deformation and burning; every performance index is within the specification range. But to note that low-frequency magnetic field shielding and RF shielding and is completely different, you can use beryllium copper RF shielding composite materials, silver, tin or aluminum and other materials, but these materials without any shielding effect of the magnetic field. Only the high permeability of the ferromagnetic alloy can shield the magnetic field. 1 according to the basic principles of the basic principles of electromagnetic shielding, low-frequency magnetic field due to its low frequency, skin effect is very small, the absorption loss is very small, and because of its low impedance, return loss is also small, so very simply by absorption and reflection difficult to obtain the required shielding effectiveness. Low-frequency magnetic field on this, through the use of high magnetic permeability material to provide bypass to achieve shielding, shown in Figure 1.Drop test of the adapter of cell phone jammer: after the drop test, the shell has no breaking, plug has no looseness or falling and the electrical performance is normal. As a high permeability shielding material, the magnetic field so as to provide a low reluctance path, so the space will be concentrated in the magnetic field shielding material, so that sensitive components from magnetic interference. Figure 1 provides a high magnetic permeability material bypass this mechanism played a role in shielding from the point of view, apparently shield the magnetic field component of the more diverting, the higher the shielding effectiveness. According to this principle, we can use the method of calculating circuit to calculate the magnetic shielding effect.
Sunday, December 25, 2011
The cell phone jammer company has established long-term cooperative relationship
Ensure continuity gasket surface first to ensure peace, punishable with a clean and well through the necessary electrical conductivity, these surfaces must be covered before the engagement; other shielding gasket material gasket has continued to this is also a good bonding is very important. Compressibility characteristics of conductive pads can make up any rules of the gasket. All pads have a minimum contact resistance and effective work, designers can increase the compression of the cushioning pads with low contact resistance than, of course, this will increase the sealing strong, will become the curved shield.This cell phone jammer company is an enterprise approved and registered by related national departments. Most of the original thickness of the compression pads 30% to 70% better results. Therefore, the proposed minimum contact surface within the concave point between the two opposite pressure should be sufficient to ensure that the gasket between the liner and has good electrical conductivity. On the other hand, the pressure on the pad should be large enough to compress the gasket in a non-normal state, because at this time will result in contact with liner failure, and may produce electromagnetic leakage. With the requirements of sub-gasket compression control for the gasket manufacturer's recommended range is very important, this design needs to ensure the gasket has enough hard to avoid large bend between the washer fasteners.This cell phone jammer company has established long-term cooperative relationship with a lot of enterprises. In some cases, may require additional fasteners to prevent the shell structure of some bending. Compression is also turning an important feature of the junction, such as location of the door or flapper. Pad in compression, then the door shielding performance with each rotation, the liner needs at this time to achieve high compression the same with the new gasket shielding performance. In most cases, this too can be done, requiring a long-term EMI solution. If the gasket by a shield or plastic coated with a conductive layer made of, then add an EMI gasket would cause too much problems, but the designer must consider many in the conductive pads on the surface, there will be wear and tear, the coating is usually the case liner surface wear. This cell phone jammer company has established long-term cooperative relationship with a lot of enterprises by its powerful strength.This wear and tear over time, growth will be lower shielding effect junction liner, and manufacturers to take back trouble. If the shield or spacer structure is, then polishing the coating material can be added before the gasket surface of a liner to wrap, just use conductive film and tape can be. Bonding pads at the edges with tape, you can use the firmware on the EMI gasket into the mechanical fastening, such as with plastic rivets or pressure-sensitive adhesives (PSA), "C-type" liner. Pad mounted on the side of the gasket to complete the EMI shielding. Liner and accessories currently available are very much shielding and cushioning products, including beryllium - copper fittings, is a network cable (or inner core with elastic band), is embedded in the rubber network and directional lines are coated with conductive rubber and the polyurethane foam pad and so on. This cell phone jammer company has established long-term cooperative relationship with a lot of enterprises by its reasonable price.Most manufacturers can provide shielding material liner to achieve a variety of estimates of the SE, but remember that SE is a relative value, also depends on the porosity, pad size, pad compression ratio, and material composition. There are a variety of shaped pad can be used for a variety of specific applications, including wear and tear, moving and hinged occasions. Many pads with adhesive or liner above, there fixtures, such as extrusion insert, insert or barbed pin devices.
People in the cell phone jammer company return to the society with high responsibility
Gasket between the liner and the poor will be lower conductive shielding effect, the other joints occur if a small slit to form a slot antenna, the radiation wavelength smaller than the gap length of about 4 times.
Gasket system: a key factor to consider is compressed, the compression gasket in between the liner and high conductive. People in this cell phone jammer company win customers by sincerity.
The magnetic bypass is another very effective shielding method, shown in Figure 4 (2) the electrical environment 2. a computer monitoring system should be considered on-site environment that may exist in the electromagnetic, electrostatic, and induction of transient voltage, lightning and power station in the area of special material conditions, but higher frequencies, high conductivity materials, magnetic shielding effectiveness may be higher than the high magnetic permeability material at high frequencies high conductivity material has a high shielding effectiveness, the reason is: the frequency increases, lower permeability, higher acoustic impedance, reflection loss increases; therefore, increase the shielding effectiveness of method is: high permeability surface coating of high conductivity material; b). Low-frequency magnetic field shielding using high permeability magnetic alloy composition to short-circuit magnetic field lines; c).People in this cell phone jammer company do everything in work with all their heart. Magnetic shielding performance and the material thickness, permeability is proportional to the size and inversely proportional to shield other; d). Magnetic field is strong, to use the multi-layer shielded to prevent magnetic saturation; e). Machining of high permeability will reduce the shielding effectiveness of materials, heat treatment after resume; f). High permeability material permeability and frequency, is generally used only for 1kHz the following; g). The processing of high permeability material with special requirements, according to the manufacturer's specifications for processing, it is best to use the factory processed products.
The original and the promotion of multi-seam cases constitute a porous shield design basis. Porous thin shielding layer: porous sub-lot, such as thin film on the ventilation holes are so that when closer spacing of the holes when the design must be carefully considered.People in the cell phone jammer company return to the society with high responsibility. Here is this case shielding effectiveness formula SE = [20lg (fc / o / σ)]-10lg n which fc / o: cut-off frequency n: Note that this hole mesh formula applies only to the hole spacing is less than the diameter of the situation, can also be used to calculate an associated braid shielding effect. Joints and contacts: welding, brazing or soldering is permanently fixed into the sheet between the common way, occupies a position is a surface must be clean and clear, so that the joints are completely filled with a conductive. Recommended nails or rivets into a fixed, because the fastener contacts between the junction of the low resistance state capacity are sustainable. Conductive pads is to reduce the slot seams or joints, holes or gaps, so that RF radiation will be distributed out. EMI gasket is a conductive medium, used to fill gaps within the shield and to provide continued low impedance contacts.People in this cell phone jammer company serve every friend owning the products. Usually in a conductor EMI gasket to provide a living connection between, on the fax so that a conductor to another conductor. EMI gasket sealing the choice can be according to the following properties: a specific frequency range of the shielding effect strong adhesion and sealing methods compatible with the electrical housing and corrosion resistance of the external environment can be. Most of the commercial temperature range of work the cost of liner has sufficient shielding to enable equipment to meet EMC standards, the key is properly within the shield into the design of the gasket.
Gasket system: a key factor to consider is compressed, the compression gasket in between the liner and high conductive. People in this cell phone jammer company win customers by sincerity.
The magnetic bypass is another very effective shielding method, shown in Figure 4 (2) the electrical environment 2. a computer monitoring system should be considered on-site environment that may exist in the electromagnetic, electrostatic, and induction of transient voltage, lightning and power station in the area of special material conditions, but higher frequencies, high conductivity materials, magnetic shielding effectiveness may be higher than the high magnetic permeability material at high frequencies high conductivity material has a high shielding effectiveness, the reason is: the frequency increases, lower permeability, higher acoustic impedance, reflection loss increases; therefore, increase the shielding effectiveness of method is: high permeability surface coating of high conductivity material; b). Low-frequency magnetic field shielding using high permeability magnetic alloy composition to short-circuit magnetic field lines; c).People in this cell phone jammer company do everything in work with all their heart. Magnetic shielding performance and the material thickness, permeability is proportional to the size and inversely proportional to shield other; d). Magnetic field is strong, to use the multi-layer shielded to prevent magnetic saturation; e). Machining of high permeability will reduce the shielding effectiveness of materials, heat treatment after resume; f). High permeability material permeability and frequency, is generally used only for 1kHz the following; g). The processing of high permeability material with special requirements, according to the manufacturer's specifications for processing, it is best to use the factory processed products.
The original and the promotion of multi-seam cases constitute a porous shield design basis. Porous thin shielding layer: porous sub-lot, such as thin film on the ventilation holes are so that when closer spacing of the holes when the design must be carefully considered.People in the cell phone jammer company return to the society with high responsibility. Here is this case shielding effectiveness formula SE = [20lg (fc / o / σ)]-10lg n which fc / o: cut-off frequency n: Note that this hole mesh formula applies only to the hole spacing is less than the diameter of the situation, can also be used to calculate an associated braid shielding effect. Joints and contacts: welding, brazing or soldering is permanently fixed into the sheet between the common way, occupies a position is a surface must be clean and clear, so that the joints are completely filled with a conductive. Recommended nails or rivets into a fixed, because the fastener contacts between the junction of the low resistance state capacity are sustainable. Conductive pads is to reduce the slot seams or joints, holes or gaps, so that RF radiation will be distributed out. EMI gasket is a conductive medium, used to fill gaps within the shield and to provide continued low impedance contacts.People in this cell phone jammer company serve every friend owning the products. Usually in a conductor EMI gasket to provide a living connection between, on the fax so that a conductor to another conductor. EMI gasket sealing the choice can be according to the following properties: a specific frequency range of the shielding effect strong adhesion and sealing methods compatible with the electrical housing and corrosion resistance of the external environment can be. Most of the commercial temperature range of work the cost of liner has sufficient shielding to enable equipment to meet EMC standards, the key is properly within the shield into the design of the gasket.
The cell phone jammer company is people oriented in operation and management
In the external alternating electromagnetic field, electromagnetic induction shielding by induced current within the shell, and this induced current in the shield space is created with the external electromagnetic field in the opposite direction of the electromagnetic field, which offset the external electromagnetic field, resulting in shielding effectiveness. Therefore, more suitable for high frequency electromagnetic shielding. Low-frequency induced current is small, poor shielding effect should be shielded to ensure that all parts of the shell has a good; electrically continuous, so that the induced current flowing in the shell in order to produce large enough to offset the external electromagnetic induction electromagnetic field, otherwise it will affect the shielding effect .The cell phone jammer company shows great foresight in strategic decision. The so-called electromagnetic induction, that circuit and the electromagnetic coupling between the loops. The principle shown in Figure 3. When the current i1, i2 through the wires 1 and 2, respectively, if the composition of loop, then the electromagnetic coupling between each other. The so-called coupling, which flows through the conductor 2 i1 composition, flow in the conductor 1 and i2 components. 1 of the conductor is, i 2 is not current, so it can only be for small and medium hydropower station computer monitoring system configuration Chan (Fujian Shaxian Chengguan Hydropower Co., Ltd. 365,500) CLC: TP38 literature identifies the Code:The cell phone jammer company develops with the forerunner of technology in product research and development. A computer-controlled technology as become more sophisticated, computer-controlled equipment prices fall, more and more hydropower stations began to use computer monitoring system, according to the hydropower station computer monitoring system and its relationship with conventional control, hydropower station computer control mode can be divided into the following types (1) the conventional control-oriented: computer monitoring, supplemented by the monitoring mode. (2) computer-based monitoring, control, supplemented by regular monitoring mode. 3) (full computer control mode. With the increasingly sophisticated computer control technology, computer monitoring of the stability and reliability are increased, the conventional control-oriented, computer monitoring, supplemented by the monitoring mode is now the basic need. The cell phone jammer company is people oriented in operation and management.The whole computer system monitoring mode requires relatively high investment, while a computer-based monitoring, control equipment, supplemented by regular monitoring of the relative mode, the system ask for much less investment, more appropriate 100MW installed capacity in the following small and medium hydropower stations. below for the small hydropower control mode configuration. 1. monitoring system overview from the power plant computer monitoring system functions are divided into: power station control layer and control layer is 1.1-based monitoring system using computer monitor, control equipment is supplemented by simple monitoring mode. 1.2 in the control room staff through the operator workstation human interface devices for monitoring circuit between 1 and circuit 2 is connected to the magnetic flux will not, so you can complete the shield, but, in fact, anti-harassment measures rarely used method to load magnetic shielding, which is appropriate because the more expensive high-performance tape strip of the reason. truly effective and practical way is to try to avoid loops formed above mentioned shielding,
2.3 low-frequency magnetic shielding for the magnetic field near the low frequency disturbance source (A C or D C power cord, power transformers, motors, relays, etc.), in order to protect sensitive magnetic equipment for normal operation.The cell phone jammer company takes sincere service, all-out effort and social return as its enterprise objective.
It is important to distinguish what is due to voltage or harassment originated in the current situation must be determined in accordance with different electrostatic shielding or the use of electromagnetic shielding.
2.3 low-frequency magnetic shielding for the magnetic field near the low frequency disturbance source (A C or D C power cord, power transformers, motors, relays, etc.), in order to protect sensitive magnetic equipment for normal operation.The cell phone jammer company takes sincere service, all-out effort and social return as its enterprise objective.
It is important to distinguish what is due to voltage or harassment originated in the current situation must be determined in accordance with different electrostatic shielding or the use of electromagnetic shielding.
Friday, December 23, 2011
Cell phone manufacturers located in the City High-tech Development Zone
Establishment of industrial early warning mechanism to foster industrial environment. Enhance the cell phone industry analysis, forecasts and information-oriented work, the establishment of cell phone production malicious damage warning system. Further enhance the cell phone industry statistics, analysis and forecasts to enhance the convergence of cell phone production enterprises and sales work, good information to guide the cell phone industry and policy guidance. Attention to increased imports on the domestic business and market impact, through the establishment of industrial damage warning system, in a timely manner to propose measures to protect the healthy development of the industry, and gradually cultivate a good environment for industrial development. The leader in the cell phone jammer workshop lay much importance on the safety of the worker.
Protection of intellectual property rights in the same time, domestic cell phone manufacturers should enhance their capacity and increase R & D investment in high-end products, improve product innovation, strengthen brand value management, restore consumer preferences, to better deal with from the threat of black market cell phones. Strengthen and standardize the cell phone market with the quality of management, fight against counterfeit goods, the formulation of relevant professional cell phone market regulations; prohibited reselling disguise approval, while imports to strengthen supervision. Countries should strive to create a favorable market environment for the cell phone industry. Market disorder that hinders the healthy development of China's cell phone industry, a major obstacle, must make great efforts to be addressed. The workshop has received the notice that the inspection group will perform the inspection of cell phone jammer within two days.
Administration must be to safeguard the legitimate interests of manufacturers, increase violations, illegal cell phone companies to punish corrupt officials, determined to make substandard cell phone out of the market; increase intellectual property protection, to prevent large-scale imitation behavior. The introduction of well-known brands, registered capital of $ 2,000,000 (including $ 2.0 million) -500 million U.S. dollars, award 500,000 yuan; registered capital of $ 5,000,000 (including $ 5 million) of U.S. $ 10 million, 750,000 yuan reward Yuan; registered capital of 10 million U.S. dollars (including $ 10 million), the reward one million yuan. The introduction of a national cell phone network license (excluding PHS network license) cell phone production enterprises, registered capital of $ 2,000,000 (including $ 2.0 million) -500 million U.S. dollars, award 300,000 yuan. The working personnel should keep the warehouse of cell phone jammer in the dry status.
Registered capital of $ 5,000,000 (including $ 5 million) of U.S. $ 10 million, award 400,000 yuan; registered capital of over $ 10 million (including $ 10 million), the reward of 500,000 yuan. The introduction of the domestic cell phone does not have a cell phone network license, production enterprises, registered capital of $ 2,000,000 (including $ 2.0 million) of U.S. $ 10 million to reward 60,000 yuan; registered capital of over $ 10 million (including $ 10 million), and award 100,000 yuan. Cited into confirmed, the introduction of business is enough to build factories in the business to commence work within three months after 40% of total cash prize, and the remaining 60% after 6 months in production to honor; the introduction of factory production business is leased , in the company, formally put into operation within three months 40% of the total cash prize, and the remaining 60% after 6 months in production cash. The equipment in the corner is the best one of manufacturing cell phone jammer.
Cell phone manufacturers located in the City High-tech Development Zone, the introduction of people by virtue of their enterprises and the introduction of High-tech Zone Management Committee of the written confirmation of material, the municipal government office to apply. Municipal assessment team (led by the municipal government office, municipal finance, development and reform, trade, information industry, technology, high-tech zones, foreign trade, business, foreign exchange management, customs, entry-exit inspection and quarantine departments composition) assessment, Municipal Government approved the introduction of one bonus issue. Cell phone manufacturers settled in county areas, the introduction of people to the local county government office to apply for money. The group leader is presenting the drawing of cell phone jammer through the projector.
Protection of intellectual property rights in the same time, domestic cell phone manufacturers should enhance their capacity and increase R & D investment in high-end products, improve product innovation, strengthen brand value management, restore consumer preferences, to better deal with from the threat of black market cell phones. Strengthen and standardize the cell phone market with the quality of management, fight against counterfeit goods, the formulation of relevant professional cell phone market regulations; prohibited reselling disguise approval, while imports to strengthen supervision. Countries should strive to create a favorable market environment for the cell phone industry. Market disorder that hinders the healthy development of China's cell phone industry, a major obstacle, must make great efforts to be addressed. The workshop has received the notice that the inspection group will perform the inspection of cell phone jammer within two days.
Administration must be to safeguard the legitimate interests of manufacturers, increase violations, illegal cell phone companies to punish corrupt officials, determined to make substandard cell phone out of the market; increase intellectual property protection, to prevent large-scale imitation behavior. The introduction of well-known brands, registered capital of $ 2,000,000 (including $ 2.0 million) -500 million U.S. dollars, award 500,000 yuan; registered capital of $ 5,000,000 (including $ 5 million) of U.S. $ 10 million, 750,000 yuan reward Yuan; registered capital of 10 million U.S. dollars (including $ 10 million), the reward one million yuan. The introduction of a national cell phone network license (excluding PHS network license) cell phone production enterprises, registered capital of $ 2,000,000 (including $ 2.0 million) -500 million U.S. dollars, award 300,000 yuan. The working personnel should keep the warehouse of cell phone jammer in the dry status.
Registered capital of $ 5,000,000 (including $ 5 million) of U.S. $ 10 million, award 400,000 yuan; registered capital of over $ 10 million (including $ 10 million), the reward of 500,000 yuan. The introduction of the domestic cell phone does not have a cell phone network license, production enterprises, registered capital of $ 2,000,000 (including $ 2.0 million) of U.S. $ 10 million to reward 60,000 yuan; registered capital of over $ 10 million (including $ 10 million), and award 100,000 yuan. Cited into confirmed, the introduction of business is enough to build factories in the business to commence work within three months after 40% of total cash prize, and the remaining 60% after 6 months in production to honor; the introduction of factory production business is leased , in the company, formally put into operation within three months 40% of the total cash prize, and the remaining 60% after 6 months in production cash. The equipment in the corner is the best one of manufacturing cell phone jammer.
Cell phone manufacturers located in the City High-tech Development Zone, the introduction of people by virtue of their enterprises and the introduction of High-tech Zone Management Committee of the written confirmation of material, the municipal government office to apply. Municipal assessment team (led by the municipal government office, municipal finance, development and reform, trade, information industry, technology, high-tech zones, foreign trade, business, foreign exchange management, customs, entry-exit inspection and quarantine departments composition) assessment, Municipal Government approved the introduction of one bonus issue. Cell phone manufacturers settled in county areas, the introduction of people to the local county government office to apply for money. The group leader is presenting the drawing of cell phone jammer through the projector.
The current cell phone industry is relatively mature
The Yangtze River Delta region as a growth pole of technological innovation, multinational headquarters, by China's three major cell phone industry chain linkage between cluster development, driven by China's cell phone innovation and development of industrial clusters, together form a complementary, full industrial cluster effect, Chinese cell phone industry clusters to promote stronger and bigger. China's current industrial policy should be changed before the cell phone industry's support for the approach to a single enterprise or a single project support, the transition to the support of industry alliances, so as to reflect on the whole chain of support. The basic working principle of cell phone jammer is almost the same.
Promote fair market competition, promoting local brands bigger and stronger, but the key is to create a favorable industry environment for strong companies to fully integrate resources, enhance innovation capability. In the current industry clusters as the starting point should be to promote industrial clusters promote innovation capability of domestic cell phone enterprises bigger and stronger. Guide the industry, technological innovation, and enhance innovation cluster. Supporting the introduction of relevant industrial policies to support the core technology R & D and technology development and production of key components, to optimize the currently controlled by foreign firms cluster structure. Corresponding to the introduction of cell phone industry "innovation" as the main line to activate the power of independent innovation as the core business combination of industrial policy. The jamming range of cell phone jammer can be influenced by the antenna direction.
Especially related to the development of producer services in order to fully release the cluster scale and scope economies, to enhance the existing chain structure, optimize the structure of the current cluster. On the one hand, policies to support local cell phone components manufacturer to manufacturer, especially for supporting foreign manufacturers, carriers through research alliances and gradually enhance the technological capabilities of local enterprises, continued to narrow the technology gap. Combination of the introduction of industry cluster development policy. The industrial technology innovation policy and industrial cluster development policy convergence. At present, domestic enterprises to enter the stage of development and growth, industrial policy needs to support industry cluster development policy as a guide, add new content, especially in clusters to help local businesses integrate internal and external resources, to strengthen international competitiveness. Every band frequency can select the outputting power for cell phone jammer
China's domestic cell phone business environment for the growth and the growth of multinational companies in different environments. The current cell phone industry is relatively mature, deep division of labor, technological innovation of small and medium enterprises, especially multinational corporations other than technological innovation after another, Chinese companies or through the acquisition of external resources to obtain a competitive advantage through strategic alliances. Second, to help local enterprises to overcome the technical standards and intellectual property rights barriers. Technical standards of international rules of the game rules leading multinationals, the Chinese government to support and guide the formation of industry alliances local enterprises to participate in the formulation of international rules of the game. To support brand building, adjusting the export structure. Efforts to develop domestic and international markets, continue to encourage the expansion of exports. At present, China's cell phone exports has more than 10% of global demand, but mainly in the foreign brands, the export of foreign-invested enterprises accounted for 94.2% of total national exports. The workshop has arranged the production task of cell phone jammer of nest year.
To continue the domestic cell phone exports, especially exports to create conditions to formulate policies and measures to encourage exports phone. Meanwhile, China Mobile to sustained and stable development of industrial clusters, it is recommended for numerous cell phone manufacturers to make the necessary merger and reorganization, only the core business bigger and stronger in order to promote the stability of the entire cell phone industry chain development and skills upgrading. 1-2 and focus on cultivating world-renowned brands, and enhance international competitiveness. At present, domestic cell phone brand into the trough, coupled with the cell phone market crowding the black, leaving the lower end of the domestic cell phone market space is very small. Therefore, for the domestic cell phone brand building, can be introduced a series of policies to support them, in order to boost domestic demand for handsets. The data in the working instruction of cell phone jammer should be referred to.
Promote fair market competition, promoting local brands bigger and stronger, but the key is to create a favorable industry environment for strong companies to fully integrate resources, enhance innovation capability. In the current industry clusters as the starting point should be to promote industrial clusters promote innovation capability of domestic cell phone enterprises bigger and stronger. Guide the industry, technological innovation, and enhance innovation cluster. Supporting the introduction of relevant industrial policies to support the core technology R & D and technology development and production of key components, to optimize the currently controlled by foreign firms cluster structure. Corresponding to the introduction of cell phone industry "innovation" as the main line to activate the power of independent innovation as the core business combination of industrial policy. The jamming range of cell phone jammer can be influenced by the antenna direction.
Especially related to the development of producer services in order to fully release the cluster scale and scope economies, to enhance the existing chain structure, optimize the structure of the current cluster. On the one hand, policies to support local cell phone components manufacturer to manufacturer, especially for supporting foreign manufacturers, carriers through research alliances and gradually enhance the technological capabilities of local enterprises, continued to narrow the technology gap. Combination of the introduction of industry cluster development policy. The industrial technology innovation policy and industrial cluster development policy convergence. At present, domestic enterprises to enter the stage of development and growth, industrial policy needs to support industry cluster development policy as a guide, add new content, especially in clusters to help local businesses integrate internal and external resources, to strengthen international competitiveness. Every band frequency can select the outputting power for cell phone jammer
China's domestic cell phone business environment for the growth and the growth of multinational companies in different environments. The current cell phone industry is relatively mature, deep division of labor, technological innovation of small and medium enterprises, especially multinational corporations other than technological innovation after another, Chinese companies or through the acquisition of external resources to obtain a competitive advantage through strategic alliances. Second, to help local enterprises to overcome the technical standards and intellectual property rights barriers. Technical standards of international rules of the game rules leading multinationals, the Chinese government to support and guide the formation of industry alliances local enterprises to participate in the formulation of international rules of the game. To support brand building, adjusting the export structure. Efforts to develop domestic and international markets, continue to encourage the expansion of exports. At present, China's cell phone exports has more than 10% of global demand, but mainly in the foreign brands, the export of foreign-invested enterprises accounted for 94.2% of total national exports. The workshop has arranged the production task of cell phone jammer of nest year.
To continue the domestic cell phone exports, especially exports to create conditions to formulate policies and measures to encourage exports phone. Meanwhile, China Mobile to sustained and stable development of industrial clusters, it is recommended for numerous cell phone manufacturers to make the necessary merger and reorganization, only the core business bigger and stronger in order to promote the stability of the entire cell phone industry chain development and skills upgrading. 1-2 and focus on cultivating world-renowned brands, and enhance international competitiveness. At present, domestic cell phone brand into the trough, coupled with the cell phone market crowding the black, leaving the lower end of the domestic cell phone market space is very small. Therefore, for the domestic cell phone brand building, can be introduced a series of policies to support them, in order to boost domestic demand for handsets. The data in the working instruction of cell phone jammer should be referred to.
The production of key components of cell phones is still dependent on foreign manufacturers
Enable enterprises to get rid of the geographic and size limitations, it not only created business opportunities for profit, and expand the resources and the corporate profits of the enterprise space, which will help the companies to optimize the allocation of resources, reduce costs, resulting in the allocation of resources on the external economies of scale. Formal partnership with network-centric, informal social networks to build the auxiliary, and gradually to cultivate a high quality of social capital, the formation of clusters of innovative industrial environment. Another element of innovation: capacity, mainly refers to the cluster of enterprises "absorption capacity", that "the organization from outside access to new information and to confirm this information is valuable to spread in the organization, and can this new knowledge the final product of an ability. "cell phone jammer intelligent management system product manufactured by the company will definitely be your best choice.
As the absorption capacity of the cluster of enterprises has a positive role in promoting innovation. Therefore, enterprises should aim to technological innovation, training of human resources as the core technology. Clusters of innovation advantage is the core competitiveness of micro-enterprise-based, enterprise strategy in the implementation of technology transfer at the same time, with particular attention to the establishment of its own technological innovation and the introduction of high-level talent. The greater the technology gap, product substitutability, the weaker the internal long-term technological dependence on the external face of pressure and control of high-end technology, so that enterprises were forced to lock in the low-end path of development, will lose a competitive edge. Deepening specialization and industrial co-development. Industrial enterprises in the cluster differences in resources and capabilities, making innovation heterogeneity. And then restart the detector of cell phone jammer intelligent system and software.
Social innovation, complexity, and cell phone technology, mobile structure of the complexity of the cell phone manufacturers have further specialization. This makes a lot of that in some areas, some of the components and some point to achieve a breakthrough on the small phone companies get the opportunity to stand out. Thus, actors in the cluster stress the importance of collaboration between. Availability of components for the manufacturers to expand profits and markets key to the production of key components of cell phones is still dependent on foreign manufacturers. Therefore, the increase in key components of the R & D and technology commercialization capabilities will help to strengthen the competitiveness of the market improved. Industrial Technology Alliance, to promote cluster innovation and development. cell phone jammer should be installed on the external wall of buildings.
3G technology has been present in the relevant industry alliance formed by the carrier making the technology diffusion and spillover faster. On the other hand, multinational handset manufacturers for global distribution, R & D centers and production bases to developing countries to employ the technical staff, as well as local talent in the production process will naturally be a lot of technology diffusion and technology spillover. Therefore, the state should take this new opportunity to support industrial policy to guide research and development alliance to drive cell phone innovation and development of industrial clusters. China's three major regions of the cell phone industry clusters, each showing different characteristics. Bohai Sea "star network" model, relying on Tianjin International Cell phone Industry Exhibition is increasingly becoming a global sourcing center and industrial interactive communication platform. cell phone jammer is used in the petrol station for the security of the public.
And substituting "brand, the professional market and logistics linkage" as a model of the cell phone industry cluster is the Pearl River Delta region, with its sound, quickly become the supporting function of supporting the center of the global cell phone industry. Yangtze River Delta region are relying on the cell phone industry cluster of China's first 3G cell phone industry base settled in, and gradually become "manufacturers and operators to cooperate, and support content providers, handset manufacturers and software vendors chip co-integration between the cell phone industry chain operation "The integration of industrial clusters. Three industrial clusters has its advantages, so by the government, set up three cell phone industry cluster resource sharing interactive platform to integrate resources, procurement center in Tianjin as the center and support center in Shenzhen as the center linkage. cell phone jammer adopts the imported and full-automatic surface-mounted equipment.
As the absorption capacity of the cluster of enterprises has a positive role in promoting innovation. Therefore, enterprises should aim to technological innovation, training of human resources as the core technology. Clusters of innovation advantage is the core competitiveness of micro-enterprise-based, enterprise strategy in the implementation of technology transfer at the same time, with particular attention to the establishment of its own technological innovation and the introduction of high-level talent. The greater the technology gap, product substitutability, the weaker the internal long-term technological dependence on the external face of pressure and control of high-end technology, so that enterprises were forced to lock in the low-end path of development, will lose a competitive edge. Deepening specialization and industrial co-development. Industrial enterprises in the cluster differences in resources and capabilities, making innovation heterogeneity. And then restart the detector of cell phone jammer intelligent system and software.
Social innovation, complexity, and cell phone technology, mobile structure of the complexity of the cell phone manufacturers have further specialization. This makes a lot of that in some areas, some of the components and some point to achieve a breakthrough on the small phone companies get the opportunity to stand out. Thus, actors in the cluster stress the importance of collaboration between. Availability of components for the manufacturers to expand profits and markets key to the production of key components of cell phones is still dependent on foreign manufacturers. Therefore, the increase in key components of the R & D and technology commercialization capabilities will help to strengthen the competitiveness of the market improved. Industrial Technology Alliance, to promote cluster innovation and development. cell phone jammer should be installed on the external wall of buildings.
3G technology has been present in the relevant industry alliance formed by the carrier making the technology diffusion and spillover faster. On the other hand, multinational handset manufacturers for global distribution, R & D centers and production bases to developing countries to employ the technical staff, as well as local talent in the production process will naturally be a lot of technology diffusion and technology spillover. Therefore, the state should take this new opportunity to support industrial policy to guide research and development alliance to drive cell phone innovation and development of industrial clusters. China's three major regions of the cell phone industry clusters, each showing different characteristics. Bohai Sea "star network" model, relying on Tianjin International Cell phone Industry Exhibition is increasingly becoming a global sourcing center and industrial interactive communication platform. cell phone jammer is used in the petrol station for the security of the public.
And substituting "brand, the professional market and logistics linkage" as a model of the cell phone industry cluster is the Pearl River Delta region, with its sound, quickly become the supporting function of supporting the center of the global cell phone industry. Yangtze River Delta region are relying on the cell phone industry cluster of China's first 3G cell phone industry base settled in, and gradually become "manufacturers and operators to cooperate, and support content providers, handset manufacturers and software vendors chip co-integration between the cell phone industry chain operation "The integration of industrial clusters. Three industrial clusters has its advantages, so by the government, set up three cell phone industry cluster resource sharing interactive platform to integrate resources, procurement center in Tianjin as the center and support center in Shenzhen as the center linkage. cell phone jammer adopts the imported and full-automatic surface-mounted equipment.
Thursday, December 22, 2011
The XH-101P explosion-proof cell phone jammer
For shielded wire, usually multi-strand braid, in the same volume because greater surface area 3. Shielded coaxial cable used for analysis of the application in practice is very common, its shielding, separate discussion is necessary. Coaxial cable used in an electric field to inhibit the capacitive coupling is very effective, but in the magnetic coupling, the coaxial cable interference problem more complicated. The complex is located by the coaxial cable center conductor and shield layer, under certain conditions can form a shield and center conductor of the magnetic coupling. Analysis are as follows: (1) coaxial cable center conductor is affected by sensor, in order to facilitate the analysis, as no current flows through the center conductor, while the shielding layer has a uniform axial current IS flowing.cell phone jammer helps to stop students sending messages during the class. Then the self-inductance of the shield have L s = φ / Is, shield and center conductor mutual inductance between the M = φ / Is, as the magnetic flux generated by all IS surrounded by a central wire, so the above two equations of φ equal. V s is the external factors in the voltage induced on the shield, Is V s is generated by the current, combined with the shield self-inductance L s and the resistance (Rs) exist, so Is the center conductor had induced voltage.XH-101P explosion-proof cell phone jammer is mainly applied in gas station, oil house, gas factory, etc. When the shielding current in the center conductor will sense a voltage V n, the voltage at frequency ω ≥ 5ωc close to the shield when the voltage on the VS, and increases as the frequency increases. We will shield grounded at both ends of the magnetic coupling can not suppress interference, because the shield of the current generated by the magnetic flux will be cross-linked with the center conductor. Usually only the charge induced on the shield drain into the ground, played the electric field shielding effect. (2) coaxial cable center conductor is the source of interference, that there is current flowing through the center conductor. At this time, such as the shield grounded at one end, then the center conductor in the charge induced on the shield to be leaked into the ground, played a role in shielding the electric field, but the magnetic field, its effect is very small.The XH-101P explosion-proof cell phone jammer is mainly applied in inflammable and explosive occasions. If the shield grounded at both ends, as shown by the conductor if the center frequency ω is much larger than the current I1 of the cut-off frequency ωc shield, the shield will be close to the external magnetic field current IS nearly cancel each other, played a magnetic radiation purposes. And low frequencies, is ineffective. Of course, this IS the connection method can not make the whole equal to I1, the current IC as well as to shunt effect. For IS = I1, can be used connections, I1 no other return than the slip road outside the IS, making the IS and I1 equal and opposite. The magnetic field generated between the two cancel each other, thereby restrain the magnetic field radiation purposes. Whether high or low frequency of this connection has a good shielding effect. This cell phone jammer forms blocking magnetic field in appointed area.A weak signal by the amplifier schematic, where E1 is a signal source and its input common-mode noise voltage of the earth, E2 is the source side to side with the potential difference amplifier noise signal, C is the shield or the shield of the distributed capacitance . Figure (a) shows the circuit, the shield wire is connected with the shield grounded at the signal.
The cell phone jammer is a domestic initiation
Here, the low-frequency magnetic field shielding is generally below 100kHz. Located close to the two parallel wires 1 and wire 2. One pair of wires 2 wire magnetic coupling interference as: U2 = jωMI1 where: M is the distribution of mutual inductance between two conductors, M = Φ/I1; I1 is the current flowing through the wire 1; Φ is current; I1 produced on the wire 2 cross-linked flux. Magnetic field coupling to suppress interference, should minimize the distribution of mutual inductance M, that is, to reduce interference between the source and the receiver circuit of cross-linked flux Φ. People can use the battery of cell phone jammer when it is charged.Shielding measures such interference shielding, suggested the use of high permeability shielding shell made of ferromagnetic material, the source of interference shielding, so that the magnetic flux generated by the source of interference can be directed to the ferromagnetic material, and thus not be interfere with the circuit cross-linked. Similarly, it can be circuit interference shielding. The shielding shell production, should note the following: 1. The choice of materials, the smaller the better magnetic reluctance Rm Rm = L / μS (L is the length of the magnetic circuit; for the magnetic cross-sectional area; S μ as a guide magnetic ratio). Selection of high-μ values of iron, silicon steel, permalloy, etc.; 2 in the shielding shell design, the shell should be thick enough to increase S, increase the shielding effect to the purpose; in the direction perpendicular to the magnetic flux can not open, so as not to increase the reluctance; 3 in order to better improve the shielding effect, and sometimes the use of multi-layer shielding, installed shielding shell should pay attention to tighten.The cell phone jammer is a domestic initiation. 2.3.2 High-frequency magnetic field shielding frequencies above 100kHz high-frequency magnetic field shielding is the use of electromagnetic induction shielding shell surface in the vortex generated by the anti-magnetic field to achieve their goals. The ferromagnetic materials at high frequencies, the magnetic loss is too large, is not conducive to the formation of the shielding shell as large eddy, fail to effectively eliminate high-frequency magnetic interference purposes. Made a good conductor shielded shell shield for an electronic circuit equivalent circuit. With the cell phone jammer, you never worry to be stalked.L is the inductance of the electronic circuit; M shell shielding for electronic circuits and mutual inductance; Ls is the inductance shielding shell; I for the electronic circuit of the current; Rs is the resistance shielding shell. Which can be drawn on the formation of eddy current shielding shell is: When the frequency is high, ωLs>> Rs, Rs can be ignored at this time, you can simplify Is ≈ MI / Ls when the frequency is low, ωLs <<Rs, this when ωLs negligible, can be reduced to Is ≈ jωMI / Rs shield measures 1 vortex increases with the frequency increases, indicating that high-frequency magnetic shielding should be used in conductive materials. (2) At higher frequencies, eddy size and frequency-independent, that is increased with frequency eddy current increases to a certain extent, continues to rise the frequency of its shielding effect is no longer enhanced. The cell phone jammer is your patron saint from being stalked.3 in the low frequency, ω low, Is small, the shielding effect is poor; Rs small, Is a large, shielding effect, shielding and less wear and tear, which requires selection of a good conductor shielding materials. As the high-frequency skin effect, eddy current shielding shell surface only in the thin layer flow, therefore, in the design of high-frequency shielding shell, the shell with different low-frequency shielding, without doing very thick, just to ensure a certain degree of mechanical strength can, generally 0.2 ~ 0.8mm.
The cell phone jammer helps to protect your track privacy
Therefore, more suitable for high frequency electromagnetic shielding. Low-frequency induced current is small, the shielding effect is poor; should ensure that all parts of the shell shield electrically continuous with the good, the induced current flowing in the shell in order to generate the induced electromagnetic field is large enough to offset the external electromagnetic field, otherwise it will affect the shielding effect. The cell phone jammer helps to protect your track privacy.The so-called electromagnetic induction, that circuit and the electromagnetic coupling between the loops. When the current i1, i2 through the wires 1 and 2, respectively, if the composition of loop, then the electromagnetic coupling between each other. The so-called coupling, which flows through the conductor 2 i1 composition, flow in the conductor 1 and i2 components. 1 for on the conductor, i2 is not current, so it is only the noise component i1. Loop 1 and Loop 2 flux between will not connect, so you can complete the shield. But, in fact, rarely used anti-harassment measures into the approach to magnetic shielding. This is because the appropriate ribbon tape is more expensive high-performance reasons.The cell phone jammer helps to protect your information confidentiality. Truly effective and practical way is to avoid as much as possible the composition loops. Shielding problems discussed above, it is important to distinguish what is due to voltage or harassment originated in the current. Must be determined according to the conditions or the use of electrostatic shielding electromagnetic shielding. In the alternating field, electric and magnetic fields always exist, and then consider the electromagnetic shield to the shield, which is the electromagnetic shielding. Electromagnetic shielding and electric field shielding magnetic shielding is not a simple superposition. In the four earlier cases, the high and low frequency electric or magnetic field separately in itself is a simplified, low and high frequencies because the middle of the transition is very complex. In general, the lower frequency range, electromagnetic interference usually appear in the near field (induction field). The portable internally integrated high-volume Li battery of cell phone jammer could be used continuously for 2 hours.The near-field interference source according to the different nature of the size of electric and magnetic fields are very different. Such as high voltage low current main source of interference to the electric field interference, magnetic interference is negligible, can only consider the electric field shielding; and low-voltage high-current magnetic interference places the main source of interference, the electric field interference is negligible, then only magnetic shielding can be considered. When the frequency is high, the source of electromagnetic radiation interference increases, will produce electromagnetic radiation that the far field (radiation field). Far-field interference of the electric field interference and magnetic interference are not ignored, need to implement electric and magnetic shielding, the general practice is the use of resistivity and low magnetic permeability of the conductor are made of shield case and a good grounding. 2.3 When the source of interference to the magnetic field shielding current form, this current generated by the magnetic field near the signal through the mutual inductance coupling on the formation of interference. Suppression of such interference, effective approach is the implementation of magnetic shielding.The battery of cell phone jammer could be charged even the car hasn’t been powered on. Magnetic shielding should first be noted the high and low frequency interference sources, because the interference with different frequencies, shielding principles are different, it will involve the selection of shielding materials and shielding shell design, production and other aspects of the problem, if an analysis on the impossible to achieve interference suppression effect.
Wednesday, December 21, 2011
Cell phone jammer can not normally work for the artificial factor
The three cities of the future are to vigorously adjust its industrial structure, high-tech electronics manufacturing and other major development, and the current processing industry, home appliance manufacturing industry will be the lower end of the relocation. Heyuan City, just by virtue of their advantage to attract these industries, together, can continue to focus on to grow food and beverage, mining metallurgy, machinery manufacturing, electronic appliances, textile clothing, building materials, ceramics, pharmaceuticals and pharmaceutical industry on the basis of the leading industries, highlighting the development of mobile phone manufacturing industry. Increasingly improved technology in the industry, reflecting the production base and R & D base separation trend. This power is relatively weak for the local scientific research, industrial workers, the relatively low level of technology to attract technology-intensive industries in Heyuan City, provides an opportunity. The agency will contact our company for the repair of cell phone jammer.
From a strategic point of view, the development of mobile phone industry is taking a new road to industrialization Heyuan a strategic choice; from the forward-looking perspective, the mobile phone market outlook is good, Heyuan ecological environment and investment climate is ideal for the mobile phone industry and other high-tech industrial development, the existing mobile phone production enterprise development is very good, also proved suitable for the development of the mobile phone industry Heyuan; from the economic point of view, mobile phone manufacturers market is large, profit is good for the community to provide more jobs, but also provides the government with more taxes. Integrated strategic, forward-looking and cost-effective three considerations, focus on the development of the mobile phone industry in Heyuan City is an ideal choice. cell phone jammer can be repaired in the warranty period.
Since February 2005, National Development and Reform Commission issued "on the mobile communication system and terminal investment approval of certain provisions", which is No. 265 since the implementation of more and more enterprises to enter the ranks of the production of mobile communication terminal, as the new 2007 New mobile phone industry by industry, 41 so far, including 11 foreign-invested enterprises, domestic enterprises 30, with production capacity of about 140 million. Currently approved for the mobile phone manufacturers have 79 production capacity of 500 million per year. This year is expected to have about 10 companies to enter the mobile phone production, in turn production capacity close to 100 million. The continuous development of China-made mobile phone manufacturing industry to the growing pressure on the stock market more competitive, domestic mobile phone industry is facing tremendous pressure. cell phone jammer is within the paid repair range.
Since 2004, Chinese mobile phone market with increased competition in the domestic mobile phone manufacturers continue to weaken the comparative advantage, market share continued to decline, to the second quarter of 2005 has been reduced to 31.6%, lower than the first quarter by 2.4%. The third quarter of 2005, the domestic mobile phone market, while gradually pick up, sales volume reached 19.38 million units, up 3.25% sequentially, but the domestic mobile phone manufacturers market share to new lows, down to 30.18%. From 2005 the company released results of the reports, in addition to Lenovo's mobile phone profits, the Bird, Amoi, Konka, TCL and other major domestic phone line losses. In the domestic mobile phone market share decline, while domestic, domestic mobile phone to speed up the pace of internationalization and actively expand exports, to ease the pressure on the domestic market. First three quarters of 2005, total domestic sales of mobile phones abroad reached 6.4 million units, up 48 percent over the same period last year. If getting the technical authentication of cell phone jammer from our company, the paid fee will be charged as per the cost.
Exports of the top three are: waveguide 3726300, TCL90.53 million units, Haier 339,600. Bird-made mobile phones which accounted for 60% of total exports over. Export covering Europe, America, Southeast Asia, the CIS and other more than sixty countries and regions. Domestic camp of mobile phones, increased differentiation, through the choice of market competition, domestic mobile phone manufacturers have formed three different camps. The first camp, the two vendors Bird, TCL's sales accounted for 30% of total domestic sales, which sold nearly 10 million waveguide, ranked first in the domestic mobile phone manufacturers, market share has reached 6.42%, further widening and other domestic the gap between brands; the second camp to sales of 150 to 3.6 million for the feature. cell phone jammer can not normally work for the artificial factor.
From a strategic point of view, the development of mobile phone industry is taking a new road to industrialization Heyuan a strategic choice; from the forward-looking perspective, the mobile phone market outlook is good, Heyuan ecological environment and investment climate is ideal for the mobile phone industry and other high-tech industrial development, the existing mobile phone production enterprise development is very good, also proved suitable for the development of the mobile phone industry Heyuan; from the economic point of view, mobile phone manufacturers market is large, profit is good for the community to provide more jobs, but also provides the government with more taxes. Integrated strategic, forward-looking and cost-effective three considerations, focus on the development of the mobile phone industry in Heyuan City is an ideal choice. cell phone jammer can be repaired in the warranty period.
Since February 2005, National Development and Reform Commission issued "on the mobile communication system and terminal investment approval of certain provisions", which is No. 265 since the implementation of more and more enterprises to enter the ranks of the production of mobile communication terminal, as the new 2007 New mobile phone industry by industry, 41 so far, including 11 foreign-invested enterprises, domestic enterprises 30, with production capacity of about 140 million. Currently approved for the mobile phone manufacturers have 79 production capacity of 500 million per year. This year is expected to have about 10 companies to enter the mobile phone production, in turn production capacity close to 100 million. The continuous development of China-made mobile phone manufacturing industry to the growing pressure on the stock market more competitive, domestic mobile phone industry is facing tremendous pressure. cell phone jammer is within the paid repair range.
Since 2004, Chinese mobile phone market with increased competition in the domestic mobile phone manufacturers continue to weaken the comparative advantage, market share continued to decline, to the second quarter of 2005 has been reduced to 31.6%, lower than the first quarter by 2.4%. The third quarter of 2005, the domestic mobile phone market, while gradually pick up, sales volume reached 19.38 million units, up 3.25% sequentially, but the domestic mobile phone manufacturers market share to new lows, down to 30.18%. From 2005 the company released results of the reports, in addition to Lenovo's mobile phone profits, the Bird, Amoi, Konka, TCL and other major domestic phone line losses. In the domestic mobile phone market share decline, while domestic, domestic mobile phone to speed up the pace of internationalization and actively expand exports, to ease the pressure on the domestic market. First three quarters of 2005, total domestic sales of mobile phones abroad reached 6.4 million units, up 48 percent over the same period last year. If getting the technical authentication of cell phone jammer from our company, the paid fee will be charged as per the cost.
Exports of the top three are: waveguide 3726300, TCL90.53 million units, Haier 339,600. Bird-made mobile phones which accounted for 60% of total exports over. Export covering Europe, America, Southeast Asia, the CIS and other more than sixty countries and regions. Domestic camp of mobile phones, increased differentiation, through the choice of market competition, domestic mobile phone manufacturers have formed three different camps. The first camp, the two vendors Bird, TCL's sales accounted for 30% of total domestic sales, which sold nearly 10 million waveguide, ranked first in the domestic mobile phone manufacturers, market share has reached 6.42%, further widening and other domestic the gap between brands; the second camp to sales of 150 to 3.6 million for the feature. cell phone jammer can not normally work for the artificial factor.
The damage of cell phone jammer
Heyuan City has formulated a more complete service, more preferential policies, "Heyuan City, a number of provisions to encourage foreign investment", to create "more money, less trouble, good health," the first-class investment environment for development. Heyuan and the Pearl River Delta in recent years to seize the international industrial transfer of industry opportunities, resources, comparative advantages into full play and actively optimize the investment environment for development, in-depth implementation of the "set up city" strategy, a firm taking a new road to industrialization, promote the industrial park facilities construction, extensively carry out investment activities to promote a large number of foreign-funded enterprises and private enterprises to invest in the development located in Heyuan. It is the repair and exchange of cell phone jammer.
The industrial park is currently located in the city's foreign investment has reached more than 400, the total contractual investment of more than 270 billion yuan, a number of large-scale, low pollution, good economic growth is accelerating the leading backbone enterprises. Compared to many towns within the Pearl River Delta, Heyuan City, starting from a blank sheet, without reservation, with the obvious advantage of the post, its economic growth rate among the highest in the province. Heyuan in development can learn from experiences and lessons learned development of the PRD, "high-level, high standard construction, investment starting point" in the industry developed rapidly, and maintain good ecological environment, take a positive development. Despite the above advantages can increase the industries to relocate in Heyuan City attractive, but also contains some limitations. The warranty and guarantee period of cell phone jammer is 1 year.
Natural environment requires us to introduce low-pollution or no pollution, high-tech industry, can not sacrifice the environment for economic efficiency; low labor costs also determine the overall quality of the labor force is not high, we need to strengthen the vocational education and adult education vigorously the introduction of talent, and encouraged the city education and vocational training industry. In addition, the city is not enough scientific and technological forces grow, the current development of technology-intensive industries enough. In summary, if the proper use of Heyuan City to the mountains of eastern and western flanks and land resources, environmental resources, water resources, labor resources and other natural resources, it is possible to overcome the increasing investment in the same region caused by the diminishing marginal benefit, so that the stimulating investment in the city as more economic benefits. For the damage of cell phone jammer which happens in the warranty period, contact the local agency for the free repair matter.
Heyuan should actively seeking their own advantage and the Pearl River Delta region and development of a number of complementary industries, give full play to their market potential, rich natural resources, cheap labor advantage, and vigorously promote the reform and in the mountains east and west wings, to improve the investment soft environment, gradually reduce barriers to foreign investment in the market, reduce local protectionism, departmental interests and administrative intervention, the Pearl River Delta in exchange for financial and technical. In the direction of development, we consider that there are three trends: First, the enterprises bigger and stronger, the advantage of scale. Through financial, marketing, human resources, raw materials and other elements of the gathering, so that many small businesses gradually "specialization, features" of the United Way, the advantage of scale, to improve production efficiency. The damage of cell phone jammer which is caused by the inappropriate and artificial using and maintenance can be repaired for free.
The second is to enhance the industrial level. That the division of labor along the value chain to enhance the system, from low value-added products to high value-added products, from low degree of processing of the high degree of processing, from production to key parts of common core components. The third is to play a "complementary", highlighting the region's advantages and industrial advantages, development of special economic developed regions to undertake labor-intensive and resource-intensive industries shift. PRD is to accelerate industrial upgrading and industrial gradient transfer of foreign pace. Some labor-intensive and capital-intensive, high rate of land occupied by the enterprise to accelerate roll-out from the Pearl River Delta. In this process, Heyuan City, the Pearl River Delta have the opportunity to absorb Na overflow of traditional industries. The real opportunities to come from a considerable number Huizhou, Dongguan and Shenzhen, the industrial transfer. Please present the warranty card and cell phone jammer to be repaired when repairing the equipment in the warranty period.
The industrial park is currently located in the city's foreign investment has reached more than 400, the total contractual investment of more than 270 billion yuan, a number of large-scale, low pollution, good economic growth is accelerating the leading backbone enterprises. Compared to many towns within the Pearl River Delta, Heyuan City, starting from a blank sheet, without reservation, with the obvious advantage of the post, its economic growth rate among the highest in the province. Heyuan in development can learn from experiences and lessons learned development of the PRD, "high-level, high standard construction, investment starting point" in the industry developed rapidly, and maintain good ecological environment, take a positive development. Despite the above advantages can increase the industries to relocate in Heyuan City attractive, but also contains some limitations. The warranty and guarantee period of cell phone jammer is 1 year.
Natural environment requires us to introduce low-pollution or no pollution, high-tech industry, can not sacrifice the environment for economic efficiency; low labor costs also determine the overall quality of the labor force is not high, we need to strengthen the vocational education and adult education vigorously the introduction of talent, and encouraged the city education and vocational training industry. In addition, the city is not enough scientific and technological forces grow, the current development of technology-intensive industries enough. In summary, if the proper use of Heyuan City to the mountains of eastern and western flanks and land resources, environmental resources, water resources, labor resources and other natural resources, it is possible to overcome the increasing investment in the same region caused by the diminishing marginal benefit, so that the stimulating investment in the city as more economic benefits. For the damage of cell phone jammer which happens in the warranty period, contact the local agency for the free repair matter.
Heyuan should actively seeking their own advantage and the Pearl River Delta region and development of a number of complementary industries, give full play to their market potential, rich natural resources, cheap labor advantage, and vigorously promote the reform and in the mountains east and west wings, to improve the investment soft environment, gradually reduce barriers to foreign investment in the market, reduce local protectionism, departmental interests and administrative intervention, the Pearl River Delta in exchange for financial and technical. In the direction of development, we consider that there are three trends: First, the enterprises bigger and stronger, the advantage of scale. Through financial, marketing, human resources, raw materials and other elements of the gathering, so that many small businesses gradually "specialization, features" of the United Way, the advantage of scale, to improve production efficiency. The damage of cell phone jammer which is caused by the inappropriate and artificial using and maintenance can be repaired for free.
The second is to enhance the industrial level. That the division of labor along the value chain to enhance the system, from low value-added products to high value-added products, from low degree of processing of the high degree of processing, from production to key parts of common core components. The third is to play a "complementary", highlighting the region's advantages and industrial advantages, development of special economic developed regions to undertake labor-intensive and resource-intensive industries shift. PRD is to accelerate industrial upgrading and industrial gradient transfer of foreign pace. Some labor-intensive and capital-intensive, high rate of land occupied by the enterprise to accelerate roll-out from the Pearl River Delta. In this process, Heyuan City, the Pearl River Delta have the opportunity to absorb Na overflow of traditional industries. The real opportunities to come from a considerable number Huizhou, Dongguan and Shenzhen, the industrial transfer. Please present the warranty card and cell phone jammer to be repaired when repairing the equipment in the warranty period.
The harmful gas is better not to contact cell phone jammer
Meanwhile, across the country are making great efforts for economic development, "Policy depression" effect no longer exists, Heyuan to accelerate the development, has not simply "copy" the rapid development of the Pearl River Delta of the original model. It must be in-depth analysis of its own conditions on the basis of mining economic growth point, select the appropriate mode of development of local characteristics, advantages, weaknesses, improve production efficiency. Heyuan has the advantage of the following: Heyuan is a very livable and eco-entrepreneurial city. Year-round to maintain air quality standards at the national level, China's air quality the best cities. Therefore, Heyuan has long proposed a "both gold and silver mines, but also lies to the" development slogan, the introduction of polluting enterprises to vote veto system. Ventilated place is suitable to storage of cell phone jammer.
In addition, the Heyuan city's forest coverage rate reached 72%, is the province an important ecological barrier and water conservation land. The city has proven all kinds 50 kinds of mineral resources, particularly iron ore, tungsten ore, rare earth, clay, geothermal reserves are large, widely distributed, known for high taste. Beautiful ecological environment and rich natural resources, creating a Heyuan China to become an excellent tourist city, but also the development of a suitable high-tech industries, especially for air, water quality and environmental requirements are relatively high environmental industries a new city. Because of this, but also to the city to attract high technology-intensive industries and labor are quite attractive. Heyuan is a link near the Pearl River Delta and the importance of inland transport hub. Heyuan City, from Guangzhou, Shenzhen, Hong Kong and other Pearl River Delta cities about 200 km, in the Pearl River Delta "two-hour economic circle", to a certain extent, within the dense crowd to share the Pearl River Delta, logistics and information flow, it is both PRD back garden, but also the forefront of Pan Pearl River Delta economic circle powerhouse. cell phone jammer should avoid long-time contact with salt fog.
Within the highway, railway, national highway, convenient transport, Hui River, river plum, Guangdong, Jiangxi and three km high-speed line was opened to traffic, the province's longest highway mileage of prefecture-level cities, there are wide to Guangzhou River Highway, means the territory of Kun Shan, Qing Jie highway preparatory work in progress; Beijing-Kowloon, Guangzhou-Meizhou-Shantou Railway runs through the whole territory, and in southern China has the largest Longchuan marshalling yard; 205 and State Road 105 , provincial and county roads criss-crossing; East River shipping direct access to the Guangzhou Huangpu Port;; a modern communication network and a class of port facilities, the Pearl River Delta is China Unicom, a major transportation hub of convergence and inland "Nanling thoroughfare," the advantage is very superior, as the industry with the objective conditions of aggregation. The harmful gas is better not to contact cell phone jammer.
The PRD region, many companies are facing land shortage, environmental stress, lack of labor difficulties. The location of these industries, according to the location is very near Heyuan, Heyuan can take root in the settled. Heyuan City, located in the mountains, traditional mountain dominated by agriculture, barren mountains, crop income is not high, and industrial underdevelopment, low labor compared with the Pearl River Delta region, Heyuan abundant labor resources, has a population of 3.4 million, out of labor 600,000, Heyuan is one of the favorable conditions to attract investment for industrial development in into the human resources available to provide strong guarantee. To further expand the acceptance of foreign investment projects, the ability to present Heyuan City is vigorously promoting the "One District 6 Park" industrial parks, high-tech zones as sources of income in Heyuan City projects, demonstration projects, environmental projects and Sunshine Project. It is the repair stipulation of cell phone jammer.
Heyuan City, taking a new road to industrialization demonstration area, the development of high-tech industry cluster area and to undertake industrial transfer of the main base for the Pearl River Delta, in the basic completion of the first phase of 6.5 square kilometers of land development and construction, based on efforts to promote the second phase is the construction of . Heyuan City High-tech Zone is a provincial park, led by the city development, which has inherent advantages, we can attract the Pearl River Delta industrial presence. Heyuan City, not only the municipal finance and investment preferential policies as a backup, co-ordination and deployment of City in the transfer of resources to support the industry, but also greatly simplifies the positioning and operation of future procedures. It is the exchange requirement of cell phone jammer.
In addition, the Heyuan city's forest coverage rate reached 72%, is the province an important ecological barrier and water conservation land. The city has proven all kinds 50 kinds of mineral resources, particularly iron ore, tungsten ore, rare earth, clay, geothermal reserves are large, widely distributed, known for high taste. Beautiful ecological environment and rich natural resources, creating a Heyuan China to become an excellent tourist city, but also the development of a suitable high-tech industries, especially for air, water quality and environmental requirements are relatively high environmental industries a new city. Because of this, but also to the city to attract high technology-intensive industries and labor are quite attractive. Heyuan is a link near the Pearl River Delta and the importance of inland transport hub. Heyuan City, from Guangzhou, Shenzhen, Hong Kong and other Pearl River Delta cities about 200 km, in the Pearl River Delta "two-hour economic circle", to a certain extent, within the dense crowd to share the Pearl River Delta, logistics and information flow, it is both PRD back garden, but also the forefront of Pan Pearl River Delta economic circle powerhouse. cell phone jammer should avoid long-time contact with salt fog.
Within the highway, railway, national highway, convenient transport, Hui River, river plum, Guangdong, Jiangxi and three km high-speed line was opened to traffic, the province's longest highway mileage of prefecture-level cities, there are wide to Guangzhou River Highway, means the territory of Kun Shan, Qing Jie highway preparatory work in progress; Beijing-Kowloon, Guangzhou-Meizhou-Shantou Railway runs through the whole territory, and in southern China has the largest Longchuan marshalling yard; 205 and State Road 105 , provincial and county roads criss-crossing; East River shipping direct access to the Guangzhou Huangpu Port;; a modern communication network and a class of port facilities, the Pearl River Delta is China Unicom, a major transportation hub of convergence and inland "Nanling thoroughfare," the advantage is very superior, as the industry with the objective conditions of aggregation. The harmful gas is better not to contact cell phone jammer.
The PRD region, many companies are facing land shortage, environmental stress, lack of labor difficulties. The location of these industries, according to the location is very near Heyuan, Heyuan can take root in the settled. Heyuan City, located in the mountains, traditional mountain dominated by agriculture, barren mountains, crop income is not high, and industrial underdevelopment, low labor compared with the Pearl River Delta region, Heyuan abundant labor resources, has a population of 3.4 million, out of labor 600,000, Heyuan is one of the favorable conditions to attract investment for industrial development in into the human resources available to provide strong guarantee. To further expand the acceptance of foreign investment projects, the ability to present Heyuan City is vigorously promoting the "One District 6 Park" industrial parks, high-tech zones as sources of income in Heyuan City projects, demonstration projects, environmental projects and Sunshine Project. It is the repair stipulation of cell phone jammer.
Heyuan City, taking a new road to industrialization demonstration area, the development of high-tech industry cluster area and to undertake industrial transfer of the main base for the Pearl River Delta, in the basic completion of the first phase of 6.5 square kilometers of land development and construction, based on efforts to promote the second phase is the construction of . Heyuan City High-tech Zone is a provincial park, led by the city development, which has inherent advantages, we can attract the Pearl River Delta industrial presence. Heyuan City, not only the municipal finance and investment preferential policies as a backup, co-ordination and deployment of City in the transfer of resources to support the industry, but also greatly simplifies the positioning and operation of future procedures. It is the exchange requirement of cell phone jammer.
Tuesday, December 20, 2011
LRZT-9.1HH cell phone jammer also blocks watches
Figure c is elastic gasket is formed with tubular metal mesh. XX and YY is the contact between the elastomer core surrounded by a metal mesh to achieve. Tubular structures have been compressed with low resistance, but does not produce permanent deformation, therefore, cover, or around the door seals can be many gaps. Installation of wire mesh liner 42 ⑵ finger beryllium copper, refer to the installation of reed-shaped reed according to the different shapes, different fixation methods used, in general there are six fixed method available, namely, cassette, pressure-sensitive adhesive bonding, brazing, welding, and riveting groove. Besides cell phones, LRZT-9.1HH cell phone jammer also blocks watches.The figure is a reed installation diagram. Finger reed installation diagram 4.4 shows the shielding window Ⅰ. Overview This section focuses on the display, indicators and monitoring the shielding window. For some small display devices, such as the common light-emitting diodes, as long as the panel to open a small hole, usually does not cause serious electromagnetic leakage. But sources close to the distance when the holes will still leak, then planted in a hole on the cut-off waveguide. Such as aesthetics and inconvenience due to the use of waveguide, the bulkhead may be considered, to improve the shielding of the circuit, and the display device exposed.Besides cell phones, LRZT-9.1HH cell phone jammer also blocks glasses detector. On larger display devices, there are two ways, one is in the display window at the use of transparent shielding materials (see the discussion in this section). Another still is the use of compartment. Ⅱ. Transmittance conductive polyester film transmittance conductive polyester film is coated with a high electrical conductivity of transparent polyester film, coated with conductive coating has a ceramic film, the conductive layer to provide protection, so that light transmission of 70 to 80 %. Translucent polyester film conductive shielding effect mainly on the role of wave reflection, rather than absorption. For TD-00117, for example, the surface resistivity of 14 ± 4Ω-cm; for electromagnetic interference shielding effectiveness in the 100kHz to 2 0 dB, 10MHz to 9 0 dB, 1GHz to 3 0 dB; thickness of 0.133mm. Light conductive polyester film suitable for the electric field and plane wave shielding, grounding and electrostatic discharge protection. Commonly used in the instrumentation.Besides cell phones, LRZT-9.1HH cell phone jammer also blocks other data transmission instrument.Computer, graphics display device as a transparent shield. When used with a molded-type as a light silver conductive silicone rubber filled polyester film with conductive interface between the joints and environmental seal. To protect the conductive film, conductive surface should be in. As the film is very thin, highly transparent, with the original panel repeatedly to use. Ⅲ. High performance shielded windows shielded window is shielded specifically for the demanding applications designed to interfere with the harsh radiation environment and to prevent electromagnetic interference immunity requirements. For Low-E terminal, printer, radar, instrument panel, CRT, etc. terminal window. It features rugged, waterproof vapor intrusion. LRZT-9.1HH cell phone jammer the cheating terminator clops all cheating instruments’ wings.There are a wide frequency range and high shielding effectiveness, especially for the occasion a large display window. High performance windows with low-impedance shield wire mesh layer, the pressure in between two layers of glass or polypropylene resin. Glass firm, has a strong anti-corrosion and anti-scratch capability, multi-layer on the surface can also have anti-reflective coating. Polypropylene resin has a strong impact resistance, but easy to scratch. For ease of termination, the metal wire mesh layer than the insulating layer of glass or plastic of some higher order in the frame or pad with the electrical connection.
Cell phone jammer also blocks invisible earphones
Conductive silicone rubber is mixed in copper, silver, silver-plated copper, silver and silver-plated aluminum glass powders and so on. One glass silver series of recommended levels in commercial and general military use; copper, silver series of electromagnetic shielding performance, and can be resistant to electromagnetic pulse impact, it is recommended to use high-end military; aluminum silver series of electromagnetic shielding performance, and electrochemical properties of aluminum compatible and can be resistant to electromagnetic pulse impact, the project recommended in the military material used on the aluminum chassis; Besides cell phones, LRZT-9.1HH cell phone jammer also blocks invisible earphones.Silver Series mold, can be used in the microbial growth conditions; Tanhei series applies to electrostatic discharge and corona discharge of the occasion; graphite silver series of lower prices, but also compatible with the electrochemical properties of aluminum, with the military in general. Conductive rubber surface is relatively soft, can not pierce the surface of the metal oxide layer, so that the shielding effectiveness is very low. The overall hard conductive rubber, with worse performance than the metal. Conductive adhesive and elastic rubber seal can be flexible. Conductive rubber gasket cross-section 393) conductive fabric gaskets:Besides cell phones, LRZT-9.1HH cell phone jammer also blocks invisible bone conduction earphones. Conductive fabric made of copper, copper nickel, copper and black resin made of a conductive woven fiber, conductive non-woven fibers and several types of conductive wire mesh, with soft , air permeability, compressibility, elasticity and light transmission characteristics. Conductive fabric wrapped foam rubber conductive cloth pad (see Figure), with a flexible, compression and other features. For there is a big gap tolerances of general-purpose electromagnetic shielding facilities. Flexibility and adaptability of the bubble, making it the required low pressure sealing and low compression ideal. In 2 0 MHz ~ 10GHz frequency range up to more than 100dB of shielding effect. Corrosion of the nickel coating with excellent electrochemical compatibility. Pressure-sensitive adhesive and rigid fixtures to ensure close contact between the contact surfaces. Besides cell phones, LRZT-9.1HH cell phone jammer also blocks rubbers.Common conductive cloth pad shape 404) finger guard: a durable metal bar. Because of excellent flexibility, can be closed in the low pressure equipment to provide high performance (either high or low frequency). Often used in electromagnetic interference, electromagnetic or electrostatic discharge protection device requirements. In particular, the contact surface for sliding contact applications. The material is beryllium copper, not burn, but also from the impact of UV rays and stable performance, can choose a variety of coatings to ensure that the contact surfaces with the electrochemical performance of other compatible, they are able to adapt to the needs of a variety of work environments . Refers to the shape deformation of large reed; low and high frequency shielding performance is also better. CD prices high. Figure finger is common reed outline. Common reed finger Outline 41 Ⅵ. Electromagnetic gasket installation here cite two relatively more use of metal mesh liner and finger reed installation cases. ⑴ used to install wire mesh wire mesh liner liner sections are often rectangular or circular. Besides cell phones, LRZT-9.1HH cell phone jammer also blocks rulers.Figure A is a rectangular pad in one of the installation method, it is placed between the metal plate XX and YY, through which the formation of a low impedance path. A better method of installation shown in Figure b, liner compression of the XX and YY return to their mechanical contact. Therefore, XX and YY are close together, so that the gap is unlikely to produce leakage, gasket at the seams and PETE good electrical contact.
Cell phone jammer blocks well without any loophole
Also, pay attention to the spacing should be appropriate to tighten the screws to prevent deformation and generation gap materials. 3) The minimum deformation. Liner must have sufficient deformation in order to provide shielding effectiveness. Deformation is too small, not only the shielding effectiveness is poor, and shielding effectiveness is very sensitive to pressure, resulting in instability in shielding effectiveness of the chassis. Conversely, too much deformation will cause permanent deformation and damage to the liner.LRZT-9.1HH cell phone jammer blocks well without any loophole. Therefore, the deformation of magnetic sealing gasket must be appropriate. 4) compression. External eliminated, gasket can not return to its original state, known as the permanent deformation. Different application requirements for compression is not the same. After installation of a place is no longer open, permanent deformation does not matter; on frequent open places, this indicator is very important. 5) The liner thickness. Electromagnetic gasket thickness must meet with the maximum gap at just the right amount of deformation. 6) electrochemical compatibility. Note that to make use of similar electrochemical properties of metal materials overlap each other. Make use of high electromotive force of the metal (Table 1, groups of high and rearward of the metal). The corrosion of metals is not easy. Ⅴ. Commonly used electromagnetic solenoid gasket sealing gasket are: 1) Metal mesh liner:LRZT-9.1HH cell phone jammer is low power consumption. This is the most commonly used magnetic sealing material, the structure of a metal wire, and hollow rubber core three. The shielding performance: low-frequency shielding effectiveness when higher; high frequency shielding effectiveness is low. Generally used in the 1GHz the following occasions. Lower the price of wire mesh gaskets, excessive compression is not easy to damage. One rectangular cross-section for the casting process or machined shell; round and with a circular cross-section used in the sheet metal wing shell. They can use conductive glue fixed, rivets or spot welding can also fixed.It is easy and convenient to use LRZT-9.1HH cell phone jammer. Wire mesh gasket does not provide pressure or air seal, it can not be used in a salt spray environment. In order to effectively shield the amount of compression should be in the original height of 15% to 30% range. Metal mesh screen with a rubber gasket cross-section core wire 36 liner is flexible and has excellent electrical conductivity of woven wire mesh and have better compression and deformation characteristics of the rubber core (neoprene sponge rubber, silicone sponge rubber, silicone solid rubber) combined product. Its external shape is also a variety to choose from. The mesh liner with a rubber core is mainly used in the equipment housing with a wide range of uneven seams, especially for doors and other low pressure and low compression, the occasion will be permanently deformed. When the network with two layers of woven liner is compressed to the original height of 75% for optimal interference shielding effect. LRZT-9.1HH cell phone jammer applies the fence blocking method to block signals.Core wire with a rubber gasket sections QIANZHENYU 37 shielded metal mesh liner and mesh liner with a rubber core roughly the same electromagnetic shielding effectiveness of magnetic field (100kHz) about 80dB; of the electric field (10MHz) of about 130dB; 1GHz plane wave of about 105dB, 10GHz about 95dB. 2) Conductive Rubber: usually used in electromagnetic shielding requirements also need to have a higher moisture sealing applications. Structure on the strip material and shape materials two. Strip material is divided into two kinds of hollow and solid core (see figure).
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