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01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

In our contemporary interconnected world, the Global Positioning System (GPS) technology has become an inseparable component of our daily existence. From the navigation systems installed in vehicles to the location-based services accessible on our smartphones, GPS plays a pivotal role in furnishing accurate positioning information. However, there might be instances where individuals or organizations endeavor to hinder GPS signals for various purposes. This article will explore five techniques to obstruct GPS signals in 2023, which include the deployment of GPS jammers.

multifunctional wireless signal blockers

GPS jammers refer to electronic devices specifically designed to disrupt or hinder GPS signals by transmitting radio frequency signals on the same frequency band utilized by GPS satellites. By emitting a powerful signal, these signal jammers overpower the weaker GPS signals, thereby impeding GPS receivers from accurately locking onto the satellite signals. The compact and portable nature of GPS jammers makes them a popular choice for individuals seeking to temporarily block GPS signals within a localized area.

It should be emphasized that the use of GPS jammers is illegal in most countries, including the United States, due to the potential risks involved. GPS jammers have the ability to interfere with critical systems such as aviation navigation, emergency services, and the proper functioning of authorized GPS users. Therefore, it is strongly discouraged to employ GPS jammers except in authorized and controlled environments, such as military or law enforcement operations.

Faraday cages are metallic enclosures that are designed to block external electromagnetic fields. These cages create a shield of conductive material, such as copper or aluminum, which prevents electromagnetic signals, including GPS signals, from entering or leaving the enclosed space. While Faraday cages are commonly used to protect sensitive electronic equipment from interference, they can also be used to effectively block GPS signals when they are designed properly.

If you want to block GPS signals, you can create a Faraday cage by enclosing the desired area with conductive material. It is crucial to make sure that there are no gaps or openings that would allow signals to penetrate. However, constructing a Faraday cage for everyday use is usually not feasible due to the significant planning and construction efforts required.

Unlike blocking GPS signals, signal spoofing involves the creation of counterfeit GPS signals to deceive GPS receivers. This method entails transmitting fabricated GPS signals that contain incorrect positioning information, causing receivers to compute inaccurate location data.

Specialized software-defined radios (SDRs) can be utilized to carry out signal spoofing, generating deceptive GPS signals. However, it is important to note that signal spoofing, similar to GPS jammers, is considered illegal in most jurisdictions. This is primarily due to the potential risks it poses to safety-critical systems and the significant disruptions it can cause.

Within controlled environments such as secure facilities or military installations, geofencing techniques can be implemented to control or prevent GPS signals from functioning within defined areas. Geofencing involves the creation of a virtual boundary using GPS coordinates, which in turn triggers specific responses when a GPS receiver enters or exits the designated zone. By integrating geofencing technologies with GPS receivers, it becomes possible to effectively limit or filter out GPS signals within specific zones.

Although geofencing and signal filtering techniques may prove effective in specific scenarios, they are not practical solutions for general use cases that necessitate GPS signals for navigation or location-based services.

The best and most responsible approach to addressing GPS signal concerns is through legal regulations and enforcement. Governments and regulatory bodies have a vital role to play in safeguarding the integrity of GPS systems and ensuring the safety and functionality of critical applications.

By rigorously enforcing the existing laws governing the utilization of GPS jammers and signal spoofing devices, as well as conducting public awareness campaigns to educate individuals about the hazards associated with interfering with GPS signals, we can effectively discourage unauthorized and irresponsible usage. Moreover, ongoing research and development endeavors can play a pivotal role in enhancing GPS security, bolstering its resilience against signal disruptions.

While the notion of obstructing GPS signals may capture the interest of a few, it is crucial to realize the potential dangers and legal implications associated with such actions. GPS technology has revolutionized numerous fields and significantly enhanced our daily routines. It is essential to give priority to responsible usage and explore alternative solutions for addressing concerns, such as legal guidelines, technological advancements, and public education, to ensure the continued reliability and functionality of GPS systems.


Tagi: block gps signals 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

To ascertain the capability of a mobile phone signal jammer to offer complete wall-to-wall shielding, it is imperative to examine different circumstances.

Take a moment to examine the mobile phone signal shielding device itself. This device emits a radio frequency signal that is specifically targeted at mobile phone signals. As this signal encounters obstacles in its transmission path, it undergoes attenuation. The degree of attenuation varies depending on the nature of the obstacles it encounters. For example, when faced with an entire steel-concrete wall or a brick-concrete wall, as well as a reinforced concrete wall followed by two consecutive brick-concrete walls, the signal is capable of effectively blocking small and medium-power mobile phone signals. The radio frequency signal emitted by the device is attenuated, thereby preventing the shielded mobile phone signal from penetrating through the wall. It is important to note that the shielded mobile phone signal, being a wireless signal, lacks the ability to pass through obstacles and reflect.

Mobile phone signals can be blocked to different extents depending on the type of wall material used. For instance, walls made of light steel keel gypsum board or glass, as well as wooden doors, offer lower levels of attenuation. Additionally, even when the mobile phone signal is blocked, it can still affect the space behind the wall through open doors and windows or by reflecting and refracting off the wall, creating a false perception of the signal-blocking device having the ability to penetrate.

A signal jammer with a protective metal casing.

Does the utilization of a metal casing enhance the performance of this signal jammer?

Initially, let's delve into the advantages offered by this specific signal jammer.

GPS WiFi Cell Phone Jammer

With its simple yet effective structure, the aluminum profile excels in dissipating heat. Widely recognized as the preferred material for heat dissipation, it boasts remarkable performance in this aspect. Additionally, the heat dissipation teeth of the profile can be customized into diverse shapes, enabling seamless integration as the protective shell of a signal jammers. This not only adds to the product's visual appeal but also highlights the meticulous craftsmanship involved.

The affordability of aluminum profiles stems from their high production volume and extensive usability. This, in turn, significantly diminishes the material expenses involved in manufacturing signal jammers. Moreover, it eliminates the necessity for a dedicated housing, thereby reducing costs even further.

Next, we shall discuss the negative aspects of signal jammers that come with metal casings.

The product's unappealing appearance stems from its metal casing and the direct screwing of external antennas onto its body. To ensure comprehensive signal blocking for 2G, 3G, 4G, 5G, and WIFI, a mobile phone jammer requires a minimum of 10-12 frequency bands, which translates to the need for 10-12 antennas. Consequently, the device takes on the resemblance of a hedgehog, devoid of any aesthetic charm.

The metal casing, functioning as a radiator, is designed to dissipate a substantial amount of heat generated by the signal shield during extended operation. Consequently, the temperature of the casing rises rapidly, and at times, the surface temperature can even reach 60-70 degrees. It is crucial to refrain from direct contact with your hands to prevent the possibility of burns.

Using a mobile phone signal jammer through walls is not recommended, whether it is a high-power or small-to-medium-power device. The main reason behind this is the lack of guaranteed shielding effect. Therefore, it is advisable to install the mobile phone signal blocking device in a location where the need to block mobile phone signals arises, rather than relying on its usage through walls.



Tagi: wall block 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

How can one prevent children from accessing the internet on their mobile phones and control the duration of their usage?

Blocking children's mobile phone signals is a necessary step to protect their well-being. Since birth, children are constantly surrounded by electronic gadgets, which can negatively impact their growth and development. Hence, it is essential for us to take prompt action in order to safeguard children from the harmful effects of mobile phones.

In light of the new coronavirus pandemic, a considerable number of children have developed a habit of spending excessive time on mobile phones and playing online games on computers. Employing a signal jammer can aid children in gradually overcoming their internet addiction and gaining better control over their online activities. Additionally, adults can reduce their own mobile phone usage, allowing for increased engagement with their children and fostering a more harmonious family environment. Ultimately, this contributes to an improved family happiness index.

The most popular 8 band jammers

Method/Step 1: Restrict children's mobile phone access to the Internet in the router

By utilizing the security settings, all modern routers possess the capability to filter the MAC address of mobile phones, effectively preventing children's mobile devices from connecting to the Internet.By leveraging the router's capabilities, individuals with greater flexibility can effectively control children's internet usage by setting limitations on both access time and internet speed. This feature is commonly available in contemporary routers. Through the restriction of internet speed, children will only be able to utilize their mobile phones for informational purposes, while being unable to indulge in gaming activities.

Method/Step 2: Use a signal jammer

The advent of wireless networks has undeniably simplified Internet accessibility for individuals, yet the associated issues cannot be overlooked. It is not solely a question of network accessibility, but also a matter of ensuring network security.Signal jammers are employed in various locations to uphold a favorable network environment by deterring excessive network usage. This equipment has found extensive utilization across different countries and regions globally. Schools, prisons, libraries, reading rooms, and gas stations exemplify the typical settings where it is commonly deployed.

Under what circumstances does a mobile phone signal jammer have poor shielding effect?

1. In which situations does a cell phone jammer exhibit subpar shielding capabilities? In what specific environment can a mobile phone signal jammer be deployed to ensure optimal signal disruption?The efficacy of mobile phone signal jammers utilized in specific locations can be influenced by various factors such as the surrounding environment, installation position, distance, and the quantity of jammers employed.

Insufficient attention was given to data analysis, plane survey, shielding coverage plan, and other essential tasks during the early stage. Consequently, blind installation resulted in no impact and poor shielding effect. To avoid such issues, it is highly recommended to contact professional shielding customer service before installing the shielding device. They can offer expert advice and guidance. Furthermore, it is advisable to seek professional installation advice before purchasing a shield suitable for locations that require shielding.

WiFi is transmitted in many segments. Without testing or checking the professional frequency band technical parameters given by the manufacturer, it cannot be completely shielded. WiFi is divided into three segments (2.4G+5.2G+5.8G) with a bandwidth of several hundred megabits. This is why many customers say There is a WiFi signal shield, but when used on-site, you can still connect to WiFi and watch videos online normally.

2. The specified requirements for installation height are not met, and the installation position is deemed improper due to the presence of obstructions. Additionally, the use of partition walls leads to signal blockage.

3. The effectiveness of wifi jammer installed in specific locations may be compromised due to environmental factors. In particular, the presence of intelligent base stations within a distance of 200-500 meters can result in shielding failure. It is worth noting that these base stations typically operate at power levels exceeding 200 watts.When the base station encounters interference, it will automatically increase the transmission power, switch to a channel with a weaker interference signal, and have the ability to freely switch between channels. Mobile phone signal amplifiers are often found on the ceiling of locations where customers install mobile phone signal jammers.When the jammer and amplifier are employed concurrently, the effectiveness of the jammer's signal cancellation is compromised.

4. The incorrect selection of jammers can lead to their ineffectiveness. It is recommended to choose jammers based on the specific locations they will be used in. For example, prisons and detention centers should consider the completeness of channel shielding and the ability to operate continuously throughout the year. Medium-power mobile phone signal jammers are employed in prison buildings.Supplementary shielding and high-power directional shielding are achieved through the use of jammers in playgrounds and the release square, respectively, to ensure complete blocking of the prison signal. However, when prisons extensively rely on mobile phone signal jammers, it becomes arduous to manage and maintain them, resulting in escalated costs. To address this, the adoption of remote control software is being considered for efficient batch management.School examination rooms and conference rooms are generally open for a short period of several hours. They do not have high requirements on machine performance, but high requirements on shielding effect. For large areas, low power is recommended, or the power is insufficient and shielding cannot be performed. Directional shielding is required and external shielding is used. Problems such as insufficient full coverage lead to poor shielding effect and intermittent shielding effect when installing a mobile phone signal jammer. Choosing a low-power jammer in a large area or too high a power in a small area will result in improper purchase and poor shielding effect.


Tagi: block cell phone signal 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

With the advancement of the Internet of Things, the requirement for location services is on the rise. Numerous organizations predict that a significant 60% of IoT devices will depend on geographical location data. Particularly, the market for extensive outdoor positioning is set to become an unignorable sector.

In the realm of navigation technology, a highly esteemed club known as the Global Navigation Satellite System (GNSS) has emerged. Despite its small membership of only four, this club has managed to captivate the interest of heads of state and garnered extensive research from top scientists and engineers. The esteemed members of this club include the American GPS, European GPS (Galileo GALILEO), Russia's GLONASS, and China's Beidou COMPASS.

China's Beidou system has recently joined the ranks, establishing itself as the most rapidly advancing member. What is the current progress of Beidou? How does it influence our lives? This captivating topic has piqued considerable interest. Although academic journals feature numerous articles on Beidou, the excessive use of technical jargon alienates and discourages the average reader.

Block GPS signal

The expanding GPS locator market has led to a notable increase in the number of individuals who desire to evade GPS signal tracking. Consequently, these individuals are actively searching for products known as GPS signal jammers, which can effectively block the tracking of GPS signals.

The gps jammer is capable of effectively obstructing the GPS locator. When a jammer is employed, it disrupts the regular operation of the GPS locator, resulting in incomplete transmission of data to the locator monitoring platform. Similar to a mobile phone, the GPS locator requires the insertion of a mobile phone card or IoT card to transmit data. Hence, as long as the GPS signal jammer can impede the signal transmission of the mobile phone card, it can effectively block the GPS locator.

The anti-location jammer disrupts the GPS locator by emitting radio interference waves within a specific electromagnetic band. This generates an electromagnetic environment that mirrors the signal-blocking device, effectively blocking GPS satellite signals. As a result, data transmission to the platform is prevented, rendering the device offline and unusable.This device is designed to efficiently block positioning signals, including GPS, Beidou, and base stations. It operates at a transmission power of 5W and offers an adjustable effective shielding distance of 1 to 15 meters (pre-set during manufacturing). By effectively blocking the GPS locator within the vehicle space, it ensures non-functionality without causing any harm to individuals.


Start with GPS

The space century for humanity commenced on October 4, 1957, with the Soviet Union's successful launch of the world's first artificial earth satellite. This event captured the close attention of the United States. Within Hopkins's Applied Physics Laboratory, mathematician Bill Guy and physicist George Weifenbach made a discovery of great significance. They observed a phenomenon where the frequency of this satellite had undergone a shift, later identified as the Doppler shift effect resulting from relative motion.

When deciding on the most suitable orbit for the satellite, three options are available: low, medium, or high. Opting for a low orbit would result in lower launch costs and improved accuracy. However, it is important to consider that achieving global coverage would require the deployment of 200 satellites.

Theoretically, global coverage can be achieved by deploying three satellites in a high orbit. Nevertheless, the launch of high-orbit satellites presents considerable difficulties, and the primary issue lies in the reduced accuracy of positioning. This can be attributed to two key factors: the excessive altitude of the orbit, resulting in significant errors, and the minimal relative speed between the geostationary orbit and ground objects, which hampers the practical implementation of the Doppler frequency shift solution method.

A medium orbit serves as a viable compromise, demanding a mere 24-36 satellites to achieve global coverage. The significant relative speed between the satellite and stationary ground objects enables the effective utilization of the Doppler frequency shift method.

Drawing upon the extensive deliberations mentioned above, the United States made the strategic choice of deploying a constellation of 24 satellites in a medium orbit. The inaugural satellite was successfully launched in 1978, and the complete system was put into operation in 1995. At present, there are 30 satellites, categorized into two distinct positioning modes: military and civilian. This approach embraces a global perspective.

Beidou generation criticized

After the loss of MH370, a lot of popular science appeared, making the public familiar with the term Doppler effect. Is the Doppler effect a good thing or a bad thing for satellites? It depends on what kind of satellite it is. This is a good thing for navigation and positioning satellites, because the greater the relative speed of the satellite relative to the measured object on the ground, the more obvious the Doppler effect, and the positioning will be more accurate. This is even the core principle basis for positioning navigation satellites.

However, the Doppler effect is a bad thing for communication satellites, because the frequency offset will cause communication failure and must be corrected. For example, the Asia-Pacific International Communications Satellite located over the Indian Ocean is fixed relative to the ground. The seven search signals sent by the missing MH370 in the final stage were measured by this satellite and found a frequency offset. This was originally data that was to be corrected, but it was not Thinking of this, it became the only evidence to speculate on the aircraft's trajectory. To sum it up in one sentence: Using communication satellites to position satellites has turned the Doppler effect, which was originally a bad thing, into a good thing.

The scale of Beidou II is similar to that of GPS, and the applied orbit and frequency are relatively consistent with those of European Galileo. This inevitably encounters the problem of competition for satellite orbits and frequencies. Satellite orbits and space frequencies are resources shared by mankind, so how should they be distributed? International rules do not divide them by country or population, but whoever takes advantage first will get it.

In 2005, the first satellite of the Galileo project was launched, but it was not activated. It only occupied the orbit but not the frequency. Why was it not activated? The reason was that there was no money, and activation required money, and Europe was a little tight on money. The first star of China's Beidou II generation also went up to the sky, and it was opened as soon as it went up. Now the orbit and frequency are occupied.

Galileo in Europe was tinkering slowly, while Beidou in China kept launching satellites one after another, and later even built a double satellite. Some frequencies of the Galileo project and Beidou II overlap, and both sides are in the field of international telecommunications. The alliance has been registered, and whoever gets it first will get it. China's fast pace has made Europe anxious, and it has put pressure on China through the United States, asking China to slow down and wait for the European people.


Tagi: block beidou gps signal 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

The rise of the Internet of Things has led to an increasing demand for location services. According to certain institutions, it is predicted that 60% of Internet of Things devices will rely on geographical location data. Outdoor positioning, in particular, is expected to be a significant market that should not be overlooked.

The GNSS (Global Navigation Satellite System) is a highly esteemed international club comprising of merely four members, which garners the interest of global leaders and the scrutiny of numerous esteemed scientists and engineers. These four members include the GPS of the United States, GALILEO Galileo of Europe, GLONASS of Russia, and Beidou COMPASS of China.

There are four prominent satellite navigation systems worldwide, including China's Beidou satellite navigation system, the United States Global Positioning System (GPS), the European Union's Galileo satellite system (GALILEO), and Russia's GLONASS satellite system (GLONASS). These four systems are acknowledged as suppliers by the United Nations Satellite Navigation Committee.

China Beidou is a recent addition, yet it stands out as the most dynamic member in terms of development. What exactly is Beidou and how does it influence our daily lives? This intriguing subject has garnered significant attention. Numerous scholarly publications delve into the intricacies of Beidou; however, these professional articles often employ jargon that may deter the interest of the general public.

jammer phone

Small GPS signal blockers great use

Utilized extensively worldwide, the GPS satellite positioning system is the most prevalent satellite positioning system. It facilitates vehicle tracking, route navigation, information inquiry, traffic command, emergency assistance, and other essential functions. Although the GPS satellite positioning system has greatly enhanced convenience in our daily lives, it has also introduced certain issues that can jeopardize individual safety.

To illustrate, in the case of a mortgage car company, they temporarily assume control of the car by providing financial assistance to the original owner. In order to prevent any covert retrieval of the vehicle by the original owner, these companies invest in GPS shields. These shields are installed both in the vehicle's parking lot and on the car itself, effectively preventing the original owner from locating the vehicle and thus ensuring the safety of the property.

As the GPS locator market expands, there is a growing interest in GPS signal blockers among those who wish to evade GPS signal tracking. However, it is crucial to ascertain whether the GPS signal blockers currently available in the market are capable of effectively shielding signal tracking.

Most GPS locators can be effectively shielded by gps blocker. The use of blockers disrupts the normal functioning of the GPS locator, preventing complete data transmission to the locator monitoring platform. Similar to mobile phones, GPS locators require the insertion of a mobile phone card or an Internet of Things card to retrieve data. Therefore, as long as the GPS signal blocker can obstruct the signal transmission of the mobile phone card, it can also block the GPS locator.

Tagi: block gps signal 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

Despite the presence of cellphone jammers within the nation's correctional facilities, incarcerated criminals continue to find ways to communicate with individuals outside the prison walls.

This is the view of senior prison officials who tell the Sunday Express that even though the signal blockers (which they say are operational) are used to block signals from cellphones within the prisons, other interception technologies are needed for the system to be effective.

Cellular signal blockers are currently employed, although their effectiveness is enhanced when combined with other technologies such as Wi-Fi jammers. This phenomenon has been observed in various jurisdictions, yet its full potential remains untapped in our own.


Prisoners will possess cellphones and tablets, yet they will be unable to make direct calls. However, they can utilize the device's data or, if they have access to a hot-spot device or a Wi-Fi box, they can make calls through social media applications such as WhatsApp, Facebook, and Instagram. Consequently, the matter of communicating with the outside world remains unresolved. Communication continues to persist.

military jamming

"In other jurisdictions, you will see the cellphone jammers being used with other interception devices to determine the frequencies used by these devices, and then target those specific frequencies. If this is not done, then it's almost like spinning top in mud," a senior source in the Prison Service explained yesterday.

Additionally, the Sunday Express has informed us that the jammers, which are utilized and controlled within the premises of the Prison Service, are actually overseen by a third party.

Acting Prisons Commissioner Deopersad Ramoutar refrained from providing a direct response to the inquiries posed to him regarding the effectiveness of the cellphone jammers. He stated that such information is privileged and falls outside the scope of the Prison Service's responsibilities.

The Sunday Express was informed by other senior officials that they continue to be operational.

At the Maximum Security Prison in Arouca, authorities discovered and confiscated a number of prohibited items, including a Wi-Fi box.

The officers were given information that guided them to the cells situated in the B Division of the prison.

During the investigation, thorough searches were carried out, leading the police to discover and confiscate a bag in a specific cell adjacent to the toilet area. This bag contained 53 grammes of marijuana, along with cellphones and the Wi-Fi box.

In an alternate compartment, law enforcement discovered and confiscated a pouch containing 104 packs of cigarettes and marijuana, with a combined weight of 241 grams.

The items seized were claimed by two prisoners.

Prison officers raised apprehensions on Friday regarding the utilization of drones above correctional facilities. A senior officer emphasized that this matter is a pressing concern that must be promptly dealt with.

The presence of a single undetected drone, capable of delivering knives or firearms, could lead to an extremely grave scenario. Up until now, the items we have confiscated have been illicit goods such as cigarettes, marijuana, mobile phones, and chargers. However, the failure to intercept even one drone could pose a significant threat to both the prison and the nation.

Ramoutar highlighted that the Prison Service has acknowledged a surge in the usage of drones near penitentiaries, particularly in the past year, prompting them to take appropriate measures.

Using the assistance of different branches within the National Security portfolio, he stated that the majority of the objects that were thrown over prison walls were confiscated before they could be obtained by the inmates.



Tagi: jammers enough block calls 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

As technology becomes more and more advanced, the use of the Internet is becoming more and more popular for the modern generation. In particular, with the invention of 5G and smartphones, the Internet has ushered in a "golden age." Wi-Fi life has now become everyone's life. It changed the world. The topic about the advantages and disadvantages of WIFI has been very hot. Some people think WIFI makes the world a better and more convenient place; We should use WIFI extensively in our life. While some people think that WIFI and smart phones are not appropriate for some special occasions.

To prevent interference, you know you need a signal jammer to improve your quality of life. While many countries make it illegal to use a cell phone blocker for personal use, be sure to check your local laws before you buy one from a professional blocker online store, and if the laws in your country allow it, you will be entitled to a useful jammer device.

Whether in a class, conference room, presentation, or religious service, calling at the wrong time can be a huge distraction. Cell jammers can stop these calls from coming in the first place. This is what we call preventing interference and unwanted calls or blocking phone noise by using cell phone signal jammers; You will have the power to stop them.

Have you ever been in a situation like this? The phone rang for a long time and no one cared about the interruption. You say loudly, "Please cover your phone." The result is that no one answers you. The unfortunate reality for any large group is that telling people to mute their devices just doesn't work. There will always be a small percentage of people who will leave their devices on for whatever reason.

How to use cell phone blocker to restrict students from using cell phone?

The use of mobile phone signal blockers is worthy of recognition, whether it is to reduce the interference of mobile phones on students' learning, improve the quality of students' learning, or to facilitate school management. You know the truth is that many schools and colleges have installed several different types of cell phone signal blockers so that parents and teachers can let students and children play with their phones. Some students expressed support. Because the use of mobile phones will make mobile phone noise immediately disappear, creating a quiet environment.

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

This is a common misconception. Many people tend to think that in an emergency, cell phone jammer do block emergency calls. They couldn't be more wrong.

Did you know that your regular smartphone can still make emergency calls even without a SIM card installed? Most cell phones are designed so that if you run into trouble and can't connect to the network provider you signed up for, you can still call 911 and other emergency services.

As a precautionary safety measure, you can always connect to emergency services. This is the international standard. For example, in the United States and other countries, there is a law that requires cell phones to be able to make emergency calls even in the event of a complete shutdown of service.

Similar to roaming services when you are abroad, your phone can be connected to any other available network to make emergency calls. 911 in the US, 999 in the UK and 112 in Europe will override any roaming listings or unregistered ones and will force the phone to try to connect to any network it can receive.

The basic understanding is that if you have a cell phone, all providers must accept 911 calls and forward them to a call center. Mobile phones are designed to allow calls to local emergency numbers using any available and compatible network, even without a subscription to the provider (i.e. SIM card via GSM phone).

3G 4G Cell Phone Jammer


Since most jammers emit low-power signals, the following bands will still be able to communicate with cell towers and will not be blocked (in most cases) anyway:

Police band

EMS Band (Emergency Medical Services)

Fire band

Cellular jammers can prevent teenagers from negligent driving

This is a big concern for many parents. Knowing that your son or daughter is driving will always worry you. Today, most accidents are caused by distraction while driving using a cell phone. The number of deaths caused by distracted driving is staggering.

Cellular jammers, which are installed in vehicles and automatically activated once a certain speed limit is reached, will go a long way towards reducing these numbers and allowing for more accurate and careful driving. No more Facebook or Instagram; No more WhatsApp messages while driving. We could all be safer on the roads.

Considering everything in this article, it's clear that we're in favor of legalizing the sale of cell phone signal jammer. Although they are illegal, there is great public interest in them and their use has increased over time. In this technological world, the need for such devices cannot be ignored.

The demand exceeded our expectations, and more and more people came to us for solutions to this never-ending problem called the mobile phone.


Tagi: block emergency calls 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

Despite its resemblance to a walkie talkie, the compact device possesses far greater capabilities than meets the eye. Once activated, a mobile phone signal jammer has the ability to disrupt all cellular services within its vicinity. However, it is crucial to note that employing such a device not only constitutes a federal offense but also carries the risk of incurring a hefty $16,000 penalty and potential imprisonment.

Eric, a resident of Philadelphia, was undeterred by the presence of talkative cell phone users on the SEPTA 44 bus. As reported by NBC 10 in Philadelphia, Eric resorted to using a block signal jammer to block out unwanted conversations.

"A lot of people are extremely loud, no sense of just privacy or anything. When it becomes a bother, that's when I screw on the antenna and flip the switch," Eric told NBC 10.


Eric professed his ignorance regarding the illegality of blocking a cell phone signal, considering it to be a "gray area." He believed that such actions were only deemed illegal when interfering with television or radio signals.

However, despite this, he displayed a lack of remorse for his actions.

He informed NBC 10 that he believes he is assuming responsibility for enforcing the law, and he expressed his pride in doing so.

The utilization of jammers, such as the one employed in this instance, is deemed unlawful due to their potential to disrupt cell phone communication during critical situations and impede essential signals like police radio and other two-way radios.

Eric stated his intention to get rid of the jammer he purchased after learning that it was illegal, with ABC News approximating its value at $300.

The larger concern lies in the fact that Eric is not the only one engaging in this jamming practice.

Tagi: block chatter bus 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

Roni Bandini grew increasingly annoyed by the reggae music blaring from his neighbors' Bluetooth speakers on a daily basis, prompting him to devise a solution using a Raspberry Pi bluetooth jammer.

Roni Bandini, a technologist and developer, grew weary of her neighbor's daily reggaeton sessions. Instead of confronting them directly, she devised a clever solution using a Raspberry Pi. Bandini programmed the device to detect when reggae music was playing and disrupt nearby Bluetooth speakers, causing distortion in the sound. Despite the invasive nature of this approach, it effectively helped her deal with the noise without direct confrontation signal blocker.

Based on a Tom's Hardware report, Roni Bandini utilizes a Raspberry Pi 3 B+ to operate his system. Additionally, he links it to a DFRobot OLED display panel. For playing music loudly, he employs a microphone connected to a USB port on the Raspberry Pi. To initiate music playback, he simply presses a button.

Bandini utilizes two distinct software programs, Raspberry Pi OS and Edge Impulse, to enable the Raspberry Pi to identify reggae music. Raspberry Pi OS functions as the core of the device, while Edge Impulse aids in the learning process. With the help of these programs, Bandini successfully trained the Raspberry Pi to differentiate reggae music from other genres.

Bandini emphasized that the project was conducted mainly as an experiment and should be approached with care. It is crucial to verify the legality of such devices according to local regulations before attempting something similar at home. Moreover, Bluetooth interference is effective only when the individual is in close proximity to the speaker, and not all Bluetooth speakers are suitable for this technique.

It is crucial to emphasize that unauthorized access to a Bluetooth device through hacking is both illegal and unethical. Nevertheless, Bandini's Raspberry Pi offers a legitimate and ethical means to engage with Bluetooth devices by establishing connections, transmitting data, and managing them appropriately.

The Raspberry Pi comes equipped with Bluetooth capabilities, allowing for seamless communication with various Bluetooth-enabled devices like speakers, headphones, keyboards, and IoT devices. One practical application is using a Raspberry Pi to establish a Bluetooth connection with a speaker and transmit audio content to it.

Unauthorized access or manipulation of someone else's Bluetooth device without their consent is considered hacking and is against the law. It is of utmost importance to consistently uphold privacy and security boundaries while utilizing technology.



Tagi: jammer block loud music 

01 stycznia 197001 stycznia 1970  0 comments  Bez nazwy

In the minutes leading up to noon on September 11, 2018, Jared Johns, a former Army private, lay down on his bed, switched on the camera of his iPhone, and expressed his goodbyes to his family.

Approaching the conclusion of the two-minute video, Johns's eyes widened in horror as he read a message on his screen: "She is informing the police, and you will be imprisoned," the message declared.

Post-Afghanistan service, Johns took a deep breath, positioned a 9 mm handgun under his chin, and proceeded to pull the trigger.

Hundreds of former and current service members, including a 24-year-old veteran, have fallen victim to a distressing "sextortion" scheme. This tragic plot, which ultimately led to the veteran's suicide, involved deceitful individuals masquerading as underage girls on dating sites. Prosecutors claim that these scam artists aimed to extort money from men who were lured into their trap.

Nevertheless, the most startling feature of the narrative in Johns' case was that it was purportedly orchestrated by inmates at Lee Correctional Institution, a high-security prison in South Carolina located about 150 miles east of Greenville. Moreover, the inmates accomplished this using smartphones - prohibited devices that were meant to be blocked by the prison's $1.7 million "managed access system."

Prison administrators, together with select federal bodies, have suggested the purchase of a more complex and potentially more expensive technology to prevent illegal cellular and Wi-Fi communication from contraband phones in correctional facilities: a signal blocker device that is capable of blocking all calls within its operational radius.

Bryan P. Stirling, who leads the South Carolina Department of Corrections, has stated that prisoners, though physically confined, are still free digitally.

Nevertheless, some experts sound a warning about the utilization of jamming technology, which was recently tested by the federal Bureau of Prisons in a South Carolina correctional facility. They caution that such technology could potentially endanger the public by interfering with crucial 911 calls and other cellphone services nearby. In the case of rural prisons, the concern revolves around the impact on drivers using local roads and highways. Additionally, these experts assert that the effectiveness of this technology is highly questionable.


Jamming all calls, even to 911

The challenges at hand have prompted corrections officials and federal agencies to propose the adoption of cellphone jammers, a technology that has faced opposition from the communications industry. This solution seeks to put an end to all calls, irrespective of whether they are made from phones owned by staff or emergency workers.

Unlike managed access systems, which restrict calls to approved numbers, jammers have the capability to interfere with all frequencies, including data and Wi-Fi, without discrimination. This poses a significant problem for the nation's 911 phone system, as it operates on a frequency that is closely related to those used by commercial carriers.

Only federal agencies have the legal authorization to operate jammers, and solely in restricted circumstances concerning national security. Nevertheless, with the endorsement of FCC Chairman Ajit Pai-selected by President Trump in 2017- and the U.S. Department of Justice, the potential use of jammers in correctional facilities may be explored.

September saw the department and state officials releasing news about a test conducted at South Carolina's Broad River Correctional Institution. The test demonstrated that a micro-jammer could effectively block calls within a cell block, while allowing "legitimate calls" a foot outside its walls.

On the other hand, the technical report from the National Telecommunications and Information Administration offered a different perspective. It highlighted that the test solely focused on one out of the 14 jammers required to block calls in half of the cellblock. Furthermore, the report noted the detection of jamming signals at a minimum distance of 65 feet, although the actual impact on regular cell-phone service remained uncertain.



Tagi: block prisoner cellphone use 


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