Wifi jammer is used to interfere with WiFi signals. It protects non-compliant devices from unauthorized access, preventing the theft of sensitive information. In addition, wifi signal jammers can also prevent network interruptions, which can be caused by malicious devices.

Wifi jammer device is used to interfere with WiFi signals. It can be used to block calls from a specific WiFi network, and it can also be used to block all WiFi signals in a specific area.

There are many benefits to using a wifi frequency jammer. You'll be able to get rid of unwanted people who want to use your free internet connection at home or work, such as someone who can steal your data by sniffing your network activity on public Wi-Fi hotspots that you can access.

You can easily avoid the risk of being hacked when accessing public networks, as hackers like small businesses, large corporations, and universities often use public Wi-Fi for their employees as it saves them having to rent their own private network separately cost of!

Law enforcement agencies can monitor WiFi signals in a distraction-free environment to detect illegal activities such as drug trafficking and terrorism. However, when you use a portable wifi jammer, it prevents anyone from accessing the internet. This will also prevent them from accessing sensitive information on their mobile devices. Because the device interferes with the signal sent from the cell phone, the relevant criminals will not be able to see that the authorities are tracking or monitoring their location.

One of the most important benefits of using a wifi blocker is that it protects non-compliant devices from unauthorized access. If an unauthorized person can get close enough to the router or access point, they can gain access to your network. This can be a problem if you have a lot of people in your office building who might be able to connect their laptops or other devices to a wireless card and then use it on your network. You don't have to worry about this happening because it's illegal, but there are always people out there who don't care about the law and want free Wi-Fi wherever they go.

The best way to prevent this from happening is to use a wifi signal blocker, which blocks any signal within its range so no one else can connect without permission
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　　Some of the most advanced GPS tracking devices have the ability to detect GPS signal interference. Products such as Azuga's fleet tracking software include signal interference detection. This protection can detect the use of GPS and GSM cell phone jammer. This function helps to prevent vehicles from being stolen, and can even be used to recover stolen commercial fleet vehicles.

　　In Southern California, the technique is used to study the motion of tectonic plates and to assess the possibility of earthquakes.GPS is used for precision agriculture, mapping fields, improving productivity, and promoting the use of chemical fertilizers.


 

　　In other words, it is essential to protect the GPS frequency in the modern world. For that reason, the US Department of Transportation last year published an assessment on “GPS adjacent band compatibility, an analysis of the frequencies neighboring GPS spectrum and of whether they should be used for commercial purposes.

　　And with Amazon now planning to deploy a fleet of drones to deliver packages straight to our doors, it is likely that more jammer devices will be seen flying around sooner rather than later.

　　Some drivers are authorized to use their work vehicles for personal use under certain circumstances. For example, many drivers take their work vehicles home every night. In other cases, the driver may spend an hour out for lunch running errands and eating while using the company vehicle. In both cases and in other cases, that driver uses the working vehicle for personal use and may not want to be tracked. Many drivers use GPS signal jammer because they don't want to be followed in these private hours.

　　Many GPS tracking devices offer“Privacy mode” settings. This feature enables drivers (and dispatchers) to hide their driving activities for a period of time.Once enabled, vehicle position, speed and engine data will not be available.However, in special cases, such as accidents, data can be extracted manually to assist in the investigation.Providing a privacy mode may reduce the risk of a driver using a GPS jamming device to protect his personal data from disclosure by an employer.

　　Even without interference detection, you can still capture employees with GPS interceptors.Although drivers may think that using GPS scramblers makes them invisible, doing so actually draws more attention to their behavior.

　　Gps interceptors are dangerous, cheap and easy to obtain.Enabling privacy mode on GPS tracker can prevent employees from using GPS-interfering devices to stop their activities after hours.

　　High-tech models of GPS tracking devices include signal jamming detection, and you can also detect employees using GPS tracker gps blocker by viewing the driver‘s travel history and live map tracking.

　　As we become more and more reliant on GPS, the prospect of a decline in GPS seems more and more alarming.

　　Almost half a century ago, the US Department of Defense started working on an experimental project to launch a series of satellites into space to make it possible to pinpoint any location on Earth.

　　Jamming happens when too much noise is broadcast by third parties on the same frequencies used by satellites to send data to receivers on the ground, which in turn calculate their location by determining their distance from the satellite.

　　Interference effectively turns off GPS navigation by sending radio signals on these frequencies, or on frequencies adjacent to those used by the technology.
 

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More than 500,000 drones are currently flying over the U.S., with more than 7 million expected by 2030. A Johns Hopkins study (completed in 2016) exposed the soft underbelly of amateur drones.

Johns Hopkins School of Engineering team leader and cybersecurity scientist Professor Lanier Watkins assigned his master's degree students to the job. The team found 3 ways to interfere with the activity of airborne drones, using just a laptop -- forcing them to land or crash.

Unfortunately, these hacking methods aren't limited to hobby drones. Many commercial drones face the same vulnerabilities - agricultural drones, police drones, commercial drones (Amazon, delivery services), aerial photography and videography drones, and more.

In the rush to produce and sell as many drones as possible, manufacturers often put safety concerns last. As such, such drones can be easily hacked and sent to spy on people, act as flying bomb carriers, and more.

3 Ways to Hack Airborne Drones

Here are 3 methods used during the Johns Hopkins study:

Hacking #1 – DOS attackThe team sent 1,000 wireless connection requests at very short intervals, overloading the drone's central processing unit and shutting it down. This is a well-known and familiar form of cyberattack known as DOS (Denial of Service), and it has been used successfully for drone jammer. When it's done using various multiple sources, it's called DDOS (Distributed Denial of Service). After the aforementioned DOS attack, the drone was forced to land immediately.

Hacker #2 – Packet AttackPackets are digital packets that are sent in a specific order over time. Overload can result when one sends a very large packet, beyond the capability of the receiver. That's exactly what happened in the second hacking attempt tested at Johns Hopkins -- this time the drone crashed).
Hacking #3 – Fake DroneThis time the team sent a persistent fake data packet directly to the drone's ground control unit. The purpose is to make the control unit think it is receiving commands from the drone itself, even though in reality it is just fake data. The team succeeded in convincing the control unit of this, thereby disconnecting the real connection to the drone. The hack made an emergency landing of the drone.

SummarizeA more advanced and sophisticated method of hacking drones is to use deliberate signal jamming (much like jamming and blocking cell phones in schools and public places). This method usually belongs to the corporate and military realms and is not available to private individuals.
Sure enough, these results are underscoring outcomes for both privacy reasons and commercial, commercial, military, and security reasons. One would speculate that military drones are more capable and immune to such cyberattacks, but that remains to be seen.

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　　Signal jammer play a role in protecting symbols from interference. It can automatically pick up the frequency of symbols at a certain point of use, and play the role of defense symbols. Prevent some signal errors. After a period of use, we must strengthen its maintenance. To prolong its existence.

　　Dust and dust particles can be removed by wiping the signal blocker with a dry microfiber fabric. There is not much in the way of cleaning. It can be wiped up and down vertically or left and right. There is also a noteworthy microfiber fabric. If you find that the stain is still on your clothes, you can wet them with water, wring them dry until they are almost dry, then pull them a little and wipe the stain off from the top to the bottom. For stubborn spots, also recall spraying a small amount of ammonia and alcohol to loosen the cleaning product on the microfiber material and wiping the signal blocker. You can also wet the microfiber fabric with water and vinegar, but tighten the fabric to make sure no liquid drips from it, and gently wipe away the stains.

　　When cleaning protective signs, be careful to keep away from water.

　　When cleaning, do not get any more wet, in any other case it may prompt excess fluid to circulate the plug and may come into contact with the instrument's internal hardware. Some chemical cleaning products have the ability to corrode and damage the protective layer on the panel and must also be selected with care. Avoid cleaning products containing ammonia or alcohol.

　　cell phone jammer in the preservation process must be wiped clean in time, select the appropriate cleaning agent, do not use water, otherwise it will cause a fast loop. Be sure to show off when transferring, do not use now, in any other case, many indicators may be incorrectly shielded. Be sure to save it. Easy to use next time.

　　The so-called protection efficiency refers to whether there are blind spots or loopholes in shielding impact. In several prison areas, there may be transmitting base stations with strong cell phone signals. In order to obtain a very good shielding effect, it needs a lot of materials and electricity, and the cost will surge accordingly.

　　Therefore, the better the protection effect, the higher the cost can be. During the exercise, the protection requirements near the prison were usually better, with minor leaks and blind spots. Offenders can also seize on this loophole, allowing the phone to be used within the limits of its protection at start-up, while defending the phone's unique purpose cannot be accomplished.

　　Here are some things to remember when choosing:

　　In some activities where cell phones are not allowed to be used, if you take out your cell phone now, it will show that there is no signal on your cell phone. This is because the cell phone signal jammer is installed inside the occasion. With it, you can block mobile phone alerts.

　　Isolation Power: isolation power, compressive strength or look at the face of the voltage. It refers to the import and export, input and output, input and output and power supply between the withstand voltage. The higher the cost, the stronger the anti-voltage ability, the stronger the isolation function, the better the filtering performance. Through the anti-voltage detection of mobile phone signal jammer, this voltage-oriented test method is determined. When you look at it, between input and output, between input and output, between input and output energy, between output power, you get a frequency voltage of 50 hertz for a few minutes, in order to achieve the equipment and other capabilities between the goal of failure—voltage value.

　　When buying the gps blocker, you can refer to the above technical indicators to buy. We can test this to help us use it more correctly. To prevent the destructive effects of the signal. Make sure the instrument protects the mark well.

　　If the original fault-free provider lifestyles is 1 12 months, in actual use, the fault-loose carrier existence reaches 3 years, and the fee overall performance is tripled. If the authentic fault-loose provider life is 1-12 months, and the real use is much less than half of a yr, disasters regularly occur. Although it‘s far a unfastened warranty, the threat caused is immeasurable, and personnel resources also are wasted, and the corresponding cost overall performance is decreased.
 

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　　From the electronics point of view, a signal jammer is a very basic device. The simplest one is only a switch and an indicator light. More complex devices have switched to activate different frequencies of interference. Components of jammer include:

　　Each interfering device has an antenna to send the signal. Some are contained in electrical cabinets. On stronger devices, the antenna is external to provide a longer range and can be tuned for a single frequency.

　　Check your phone-if your phone battery is OK and if you want to continue your conversation, try to get out of the area. You may only need a few steps to get out of the Jammer's range.

　　Interfering devices overload the cellular telephone by transmitting signals at the same frequency and at sufficiently high power so that the two signals collide and cancel each other out. The handset is designed to increase power when it encounters low-level interference, so the handset jammer must identify and match the power increase from the handset.

　　Handsets are full-duplex devices, meaning they use two separate frequencies, one for calls and the other for simultaneous listening. Some jammers block only one frequency used by the phone, which blocks both frequencies. The phone was tricked into thinking there was no service because it could only receive one of the frequencies.

　　While less sophisticated devices can block only one set of frequencies, sophisticated jammers can block multiple types of networks at the same time, preventing dual-mode or triple-mode phones from automatically switching between different types of networks, to find an open signal. Some high-end devices block all frequencies at once, while others can be tuned to specific frequencies.

　　There are cell phones everywhere now. In October 2005, nearly 195 million people in the United States had cell phone service, according to the cellular telecommunications and Internet Association. Mobile phones are ubiquitous in Europe.

　　The actual range of the jammer depends on its power and the local environment, which may include hills or walls of buildings that block interfering signals. A low-power GPS jammers blocks call within 30 feet (> 9 meters). Higher power devices create a cell-less area as large as a football field. Equipment used by law enforcement can shut down services within 1 mile (1.6 km) of the equipment.

　　While most of us simply complain and move on, some are actually moving towards extreme retaliation. Cell phones are basically hand-held two-way radios. As with any radio, the signal may be interfered with or interfered with.

 

　　Jamming cell phones is the same as jamming other types of radio communications. The mobile phone communicates with its service network through a cell tower or base station. Cell phone towers divide cities into small areas or cell phone towers. When a mobile phone user drives down a street, a signal travels from one cell tower to another.

　　An interfering device transmits on the same radio frequency as the mobile phone, interfering with the communication between the mobile phone and the mobile phone base station in the tower.

　　This is known as a denial of service attack. The cell phone jammer refuses to provide radio spectrum service to cellular telephone users within range of the jamming device.

　　It's nice to be able to call anyone at any time

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Wireless technology has provided us with many conveniences, such as being able to use the Internet and telephone without being tethered to wires. Some companies are trying to take advantage of the technology by releasing products that allow you to "cradle" your phone into a unit while still giving you access to the internet. This is known as the benefit of wifi jammer. If you own a Motorola phone, you've seen commercials for this product on TV and the Internet. This is a great project for parents looking to keep their kids safe when they're out and about, or for any business that might want to promote cell phone hubs from a distance, such as from a plane. In this article, you will learn about the benefits of wifi signal jammer.Many people don't know how this wifi jammer device works. This essentially means that you can use your phone or PDA device to connect to the hotspot just like any other wireless device. However, if you don't have a wireless signal or your PDA has only a weak signal, the device won't be able to connect to the network. The device uses a WiFi protection system module that sits between the phone and the router or modem.

There are some advantages to using this type of wifi frequency jammer. You can keep your kids safe, your laptop safe, or your PDA from being stolen. You can also prevent the interruption of internet service. For businesses, it can help improve reception and increase internet speed.

There are also some disadvantages. It takes longer for the device to detect the network because it has to scan all radio channels. Nor does it protect your data from intrusion or corruption. This is something to consider if you want to use this device for work or your phone.

When you install Hamster on your desktop or laptop, you can turn off the internet to the rest of the machine so it's not vulnerable. You can also use other types of jammers by turning off wifi in specific areas. But the main advantage of this product is the range. The five-mile range is about as far as other devices can reach.

 

This type of jammer is not difficult to set up. It's also easy to uninstall. Most companies offer free trials so you can try them out before buying. This product can also be used in a home wireless network. This means you can have your own wireless network without paying extra for an internet connection.
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The United States and China have been taking countermeasures, using their anti-drone technology to design and produce drone jammer devices or guns. These countries believe in using these devices as drone signal jammers to counteract the activity of any UAV.

US Anti-Drone Jammer

Over the past few years, the U.S. military has been evaluating different counter-drone measures to block or jam signals. These devices are used for radar detection and conventional counterattacks, mainly against aircraft.

"If you stay still, you're going to get stuck," according to Lt. Col. Jeffrey Kawada, deputy director of information for the Marine Corps Capability Development Command's Operational Integration Division at Marine Corps Command. will get stuck, and that's what we're doing. We are trying to do dynamic spectrum access. We will be stuck because what we do is for them.

Now, we have different companies selling radio frequency jamming devices that block the control signals from drones. Once installed, Drone jammers won't be able to attack and track your drone, and some are selling devices that could cause the quadcopter to return to its origin or crash unexpectedly. drone anti-jammer is designed to disrupt the connection between the controller and the drone. In other words, they are very effective at shooting down drones that use Wi-Fi as a means of communication.

Chinese Anti-Drone GPS Jammer

On October 29, 2017, China claimed that the use of drones or unmanned aerial vehicles (UAVs) could pose a threat while interfering with personal privacy. With this, people's minds are no longer at peace and they are now looking for different effective drone jamming solutions to protect them from being tracked and tracked by these jammers.

Currently, China-based Jammer mart Technologies is designing different radio frequency jammers for drones and wireless communications to help protect the country's people from these aviation devices. The country has now built a long-range drone jammer that can be used to strike devices at distances up to 1,000 meters. This will make it easy to attack different aerial devices.

A spokesperson for Jammer mart Technology Company Limited explained that their long-range drone jammer uses radio frequency-controlled jamming technology to stop drones from flying in the air. This will help improve the safety and security of people and military installations from hackers. He also said the gun operates on standard ISM and GPS radio bands, with a Wi-Fi range of about 2.4 GHz to 5.8 GHz. This makes it easy to influence commercial drone signals. It can operate over a long frequency range; this makes it easy to detect and shoot down drones from a distance.
 

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　　In a recent study, when traditional test methods were used to understand shielding requirements in battery-operated portable wireless designs, several shortcomings were identified. Most of the test methods available today were developed to identify the materials that make up the EMI enclosure. However, there is currently no officially published test method to study the Shielding Effectiveness (SE) of an assembled shield on a portable wireless device PCB.

　　Add to that the recent boom in cell phone miniaturization. This means that high-frequency components are now crammed into very narrow spaces, which in turn reduces the size of the required printed circuit board (PCB).

　　For a conference room of about 100-300m2, usually, one or two low-power cell phone signal jammer are installed, which can basically meet the shielding effect of the whole conference room. In addition, the installation position should be determined according to the site environment. If the conference room is above the ceiling or has a movable ceiling, the shielding can be directly installed on the ceiling or ceiling. Or you can choose to install it on the conference table, corner, or wall of the venue. You can also use the built-in omnidirectional antenna. If you want to reduce the impact on the outside world, you can install it as a directional antenna.

　　If you want the cell phone jammer to cover a larger area, the simple and direct way is to use a more powerful jammer.

　　In the construction process of most standardized examination rooms, the project of installing mobile phone signal shields in examination rooms is included. However, some customers will always find that the shielding effect of the mobile phone signal shield in the test room is not ideal in the actual use process after it is turned on. If the factors of shielding equipment selection and poor working performance are excluded, how to install shielding equipment and how to choose the installation position of shielding equipment will become the main factors affecting the shielding effect.

 

　　Check the indoor mobile phone signal shielding device is generally installed in accordance with the original design drawings. The most common locations for shielding devices are the front and back of the blackboard or the top of the middle of the blackboard, the top corner of the front and back walls of the exam room, and the middle area on both sides of the classroom? ? Walls, beams in the middle of the classroom, etc. but some people for the sake of convenience, will shield device directly on the podium or hidden in the podium. This method was definitely not recommended, because hiding at a desk was not only bad for the heat dissipation of the cell phone signal shielding in the examination room, but if the table was made of metal, it was even worse for the signal transmission, directly affecting the shielding effect.

　　After the mobile phone shielding device is turned on, the effective coverage of shielding signals is usually tens of square meters to hundreds of square meters. However, due to the influence of the communication base station near the use scene or other factors, the shielding range may not reach the expected effect. At this time, people always want to use some methods to expand the coverage of blocked signals, so that the shielding effect of cell phone jammer can be greatly improved. Improve.

　　Most shielding devices mainly interfere with uplink signals. The reason is that the transmission power of the mobile phone is 23dbm, which is 2 watts. As long as the mobile phone (UE) is prevented from sending signals to the base station, the shielding function is basically realized, resulting in the UE and the base station being shielded. Signaling interaction is impossible. The main principle of the shielding instrument is to scramble a certain frequency band (most uplink frequency bands) and transmit useless signals.

　　But how much does this kind of home cell phone jammer cost?

　　First of all, how much is it gonna cost you? You can get the cheapest jammer for about $30 to $60(those only block certain types of signals -- like mobile signals). It's a bargain, right? On the other hand, they tend to work on the battery for only a short time and cover only a small area (about the size of a person's body).

　　There is no difference between the mobile phone signal blocker at home and the mobile phone signal blocker in the examination room in many places. For example, the shielded signal frequency bands are all frequency band shielding, that is to say, the mobile phone signals and WiFi signals of 5G can be shielded; The difference lies in the shielding range. The shielding range of the signal jammer in the examination room is generally about 100 square meters, covering the whole classroom examination room.

　　If you decide to buy one of the pro models, you must invest a serious amount of money behind it – at least 500$. On the upside, you don‘t have to worry about getting separate GPS jammers. More often than not, these models are able to block all sorts of signals including Cellular, Wi-Fi, GPS, Bluetooth, and Radio Communication.

　　As long as the domestic signal jammer can shield the children's room, this area is basically within 20 square meters. If the shield area is too large, may affect the normal use of mobile phones neighbors, easy to cause complaints. Therefore, in the choice of household mobile phone signal jammer, you can choose the lower power, so the price of the jammer will be lower.
 

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A wifi jammer is one of the easiest ways to get rid of the wireless signal in your home or office. With cheap wifi jammers for sale from China, you can buy a WiFi blocker that will make the most of it at the factory price. Below are the main advantages of wifi jammers.Hidden antenna

WiFi signal jammers can be great tools for a variety of purposes, from crime scenes to law enforcement operations. These jammers effectively block signals in homes and offices, reducing the risk of information leakage. In addition to these applications, jammers are also helpful to law enforcement officers, as they can be used to track cell phone usage in public places, as well as monitor phone and internet usage.

Unlike ordinary wifi jammer device, mini power banks can be used as portable jammers. These mini wifi/Bluetooth signal jammers feature a compact design with hidden antennas on the top and sides. They block all major cell phones, GPS, and Wi-Fi signals. Hidden antennas on the mini power banks allow them to be used while charging. Unlike ordinary power banks, mini wifi jammers can block multiple frequency bands at the same time.

Wifi blocker cost

Wifi frequency jammers are a very cheap way to block wireless signals. They block signals on multiple channels and can be used in a variety of ways. A wifi blocker can cost anywhere from $20 to $600. You can get them at a low cost by looking them up online. If you don't have a lot of cash, try a mylar blanket. Just make sure the aluminum side is facing out. If you're looking for something more efficient, you can use aluminum foil. While laser jammers are illegal in some states, they are not.

While wifi jammer kit can be expensive, the technology behind them is very reliable. A 16-band 5g jammer can jam two signals at a time. It can shield areas up to 25 meters away. Also, it is portable and can be used for many occasions. Also, it will prevent your kids from getting addicted to the WIFI network. You can even find mini portable wifi jammers that include an antenna.

where to buy

If you're wondering where to buy a cheap wifi jammer, you've come to the right place. China is the hometown of wifi jammers, you can buy them cheaply from their factory or from their website. https://jammer-mart.com/ This online site offers a variety of payment methods including cash on delivery, vouchers and Gcash.
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The World Economic Forum's analysis of the future of war sends a very clear message: War will become faster, deadlier and therefore less humane than ever. Humans will have agents on the battlefield (drones), agents at headquarters (threat analysis and momentary decision-making), and agents in the enemy's backyard (cyber attacks on infrastructure). On the one hand, commanders and infantrymen will be able to see more of the battlefield, their human senses enhanced by highly sensitive electronic eyes and ears, on the other hand, the rhythm of events will be greatly accelerated, and their brains will be in a similar fashion Rely on artificial intelligence that can process large amounts of input and make hundreds of instantaneous decisions simultaneously.

Electronic warfare is the battle in any modern conflict. Weapons with sophisticated electronic targeting and guidance systems are fired under authorization provided through electronic communications and after going through the decision-making process, among other things, by signals intelligence notifications generated by other electronic systems. They, in turn, are counteracted by electronic jamming signals that attempt to deceive target systems, interfere with guidance, disrupt communications, and project clouds of electronic noise to disrupt any SIGINT measures. All of these are divided into three main sub-divisions; 1) Electronic Attack (EA), measures aimed at actively disrupting enemy capabilities and personnel; 2) Electronic Protection (EP), those measures aimed at confusing EA measures; 3) Electronic Warfare Support (EWS), measures that tactical commanders can use to counter electronic threats on the battlefield.
 

Drone Jammers: The Swiss Army Knife of the Future

Signal jammers come in a variety of shapes, are designed to jam specific signals, and can be used in different scenarios. Jammers can be used offensively, to jam before or during an attack, or to defensively jam the signal around the target and prevent any long-range signal attack. These jammers can also work quite differently. Some of them rudely inundate large ranges of frequencies and large geographic areas, while others specialize in destroying specific frequencies for specific reasons. For example, in recent years, drones have gone from a nerd hobby to a legitimate tactical threat and a nightmare for personal security personnel with the help of sophisticated software packages. That's why the introduction of drone jammer has been welcomed by counterterrorism forces around the world, as relieved as the coalition welcomed improvised explosive device jammers in Iraq a few years ago.

The Handbook of Modern Warfare has been rewritten in light of the capabilities that electronic warfare makes possible, and it is likely that the final chapters are still to come

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