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Cell phone signal blockers are mainly used in various examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, military areas and other places where the use of mobile phones is prohibited. It is understood that the mobile phone signal jammers currently on the market can limit mobile phone signals beyond 500 meters from the transmitting station. For example, Jinyuda's P501 jammer has a range radius of >20 meters. The ... more

Compare how a cell phone signal booster works to an antenna: The booster receives the cell signal from a base station and sends it to the cell network. You can forget about issues like limited range, dropped calls, and slow data rates when you have a cell phone signal booster. Therefore, a cell phone signal booster is your personal supply of high-quality cellular network.Cell phone signal booster will help your cell phone work at a high level. This device improves the reception of signals, so you will enjoy the perfect working of you... more

Common cell phone signal jammers on the market have operating frequencies: 869~894MHz; 825~960MHz; 1805~1880MHz and 1900~1990MHz, etc. The applicable frequency bands are CDMA800, GSM900, DCS1800, and PCS1900. It can control a range of about 40 meters in diameter, using a DC-DC converter input voltage and 5V output voltage.Before purchasing a jammer, there are several important factors that should be considered:1) Band frequency.The correct frequency to choose depends on the device you want to block. To prevent cell phone re... more

A portable signal jammer is a device that can block radio signals, which can effectively prevent the transmission and reception of radio signals. This kind of device is usually used to protect personal privacy and prevent information leakage, so it has been widely used in some specific fields.Why use a portable signal jammer? What does it do? In what fields is it used?The main function of the portable signal jammer is to prevent the transmission and reception of radio signals, thereby protecting personal privacy and prevent... more

Effectively signal jammers various walkie-talkie signals, blocks (interferes with) the communication between the walkie-talkie and the receiver, and prevents various wireless stealth headsets (including anti-shielding and anti-detection headsets) grafted to the walkie-talkie system from working properly (strong noise or no sound) )It only blocks the intercom signal and does not affect the normal operation of other electronic equipment.Environmental protection, the amount of electromagnetic radiation has been strictly tested... more

In what kind of environment can cell phone signal jammers be installed to achieve better results? Why do sometimes installed signal jammers not work, or have poor results? In fact, this boils down to the surrounding environment where you use the signal jammer. In terms of installation technology, the following factors must be considered when using signal jammers:The comprehensive factors for indoor shielding include:1. Consider the lateral application field space in the area that needs to be shielded;2. The floor height of ... more

There are all kinds of cell phone jammer and all kinds of machines on the market. Prices are also unstable. Maybe you've bought a cheap machine on a platform, but it actually didn't work. When buying mobile phone signal shielding, you can't care about the price, because buyers are useful. Otherwise, even if a useless machine is cheap, consumers will have no actual effect. When choosing mobile phone signal shielding, you know what aspects you need to use. You can tell our company's expert who specializes in selling mobile ph... more

The shielding distance of the device has a great relationship with the power of the device and the use environment. There are several aspects that are helpful to the shielding effect: first, the output power of the device, second, the working mode of the shield, and third, the use environment (indoor or outdoor), The fourth is to shield the interference intensity of the surrounding environment.cell phone signal jammerNowadays, mobile phones all use digital signals, and digital signals have strong anti-interference capabilities. Gener... more

Install using:1. Make sure the antenna and other accessories of the signal jammer for sale are installed correctly;2. Ensure that the mobile base station is more than 200 meters away;3. The shielding effect depends on the surrounding environment. The interference effect of mobile phones used in suburbs is better than that in cities, because the density of mobile base stations in cities is larger and the distance between base stations is closer, causing the signals emitted by urban mobile base stations (where the jammer need... more

Looking at ancient and modern times, at home and abroad, cheating has occurred in all examinations in the past. It is just that as skills improve, the methods of cheating are constantly updated and changed. Nowadays, with the development of technology, more and more people use mobile phones to cheat, which has become an issue that examination management departments pay more and more attention to. Cell phone signal jammers are currently a proactive preventive measure in major examination centers.Mobile phones have indeed bro... more

5G signal jammers are built to block the working of communication equipment. The device uses the frequency at which the mobile phone operates, so it cannot affect the use of the mobile phone by receiving signals from the base station. If you want to disable the normal functions of your mobile phone, just install a mobile phone signal jammer, and the mobile phone will stop accepting calls and messages within a certain period of time.A cell phone signal jammer is a unique device. It will assist you against 5g, UMTS, CDMA, GMS, PHS... more

5G signal jammers are built to block the working of communication equipment. The device uses the frequency at which the mobile phone operates, so it cannot affect the use of the mobile phone by receiving signals from the base station. If you want to disable the normal functions of your mobile phone, just install a mobile phone signal jammer, and the mobile phone will stop accepting calls and messages within a certain period of time.A cell phone signal jammer is a unique device. It will assist you against 5g, UMTS, CDMA, GMS, PHS... more

Every year during the college entrance examination, the school will have network problems, such as mobile phone disconnections and slow Internet speed, because the school has turned on the cell phone jammer. If we think of cell phones as handheld two-way radios, radios are subject to interference, and cell phones are no exception. Like any radio, cell phone signals are subject to interference.In this article, Topsignaljammer will talk to you about how cell phone jammers work.interference principleJamming a cell phone is like jam... more

In the past few years, many types of cell phone jammers have emerged one after another, dazzling everyone. However, in fact, not all products are suitable for everyone to use for themselves. Some products are public, so they are not suitable for everyone to use. Suitable to be used in other fields, there is a very special jammer that often appears around everyone. Its name is a mobile phone signal jammer. So what are the advantages of this type of product?When we use a wireless signal jammer, you will find that no matter wh... more

In the past few years, many types of cell phone jammers have emerged one after another, dazzling everyone. However, in fact, not all products are suitable for everyone to use for themselves. Some products are public, so they are not suitable for everyone to use. Suitable to be used in other fields, there is a very special jammer that often appears around everyone. Its name is a mobile phone signal jammer. So what are the advantages of this type of product?When we use a wireless signal jammer, you will find that no matter wh... more

In the past few years, many types of cell phone jammers have emerged one after another, dazzling everyone. However, in fact, not all products are suitable for everyone to use for themselves. Some products are public, so they are not suitable for everyone to use. Suitable to be used in other fields, there is a very special jammer that often appears around everyone. Its name is a mobile phone signal jammer. So what are the advantages of this type of product?When we use a wireless signal jammer, you will find that no matter wh... more

1. The antenna equipment is not tightenedIf the antenna equipment is not tightened, the temporary phenomenon that occurs is that the occurrence of some frequencies cannot be blocked. If this symptom occurs during on-site installation, please first check whether the antenna equipment is tightened.(1) Details of tightening the antenna: Since the antenna is composed of two parts of the activity (1 is the short connector; 2 is the antenna pole), you must hold the lower part of the antenna short connector tightly during installation. Tigh... more

There are many kinds of cell phone signal jammers on the market, and there are also various machines. Prices also vary. Maybe you may have purchased a cheap machine on a certain platform, but it was useless in actual use. In fact, when buying a mobile phone signal jammer, you don't have to care about its price, because the main buyer must buy it if it is useful. Otherwise, even if the useless machine is cheap, it will have no practical effect for consumers to buy it. When choosing a cell phone signal jammer, just make sure ... more

There is a law in economics: the law of value is the basic economic law of commodity production and commodity exchange, that is, the value of commodities depends on socially necessary labor time, and commodities are exchanged with each other according to the principle of equal value. In a private ownership society, the law of value spontaneously regulates production, stimulates the improvement of production technology, and accelerates the differentiation of commodity producers. In a socialist society, since the socialist economy is a... more

Vehicle tracking software is a powerful tool that has revolutionized the way businesses manage their fleets and assets. One of the primary benefits of Vehicle Tracking Software is enhanced visibility and control. Fleet managers can access a wealth of information about their vehicles, such as their current location, speed, and fuel consumption. This data enables them to make informed decisions to optimize routes, reduce fuel consumption, and improve overall operational efficiency. Fleet managers have access to a lot of data regarding ... more