As a woman, have you or someone close to you experienced being stalked?

Have you seen such news? Nowadays, the development of technology has brought a lot of convenience to our lives, but it has also provided opportunities for bad guys and criminals. We often see such social news on the Internet or in newspapers. I have not had such an experience, but I have indeed seen a lot of similar news.

In late February, a man in Nagoya was arrested by Aichi Prefectural Police on suspicion of violating the stalking control law after installing a satellite positioning system (GPS) device on the car of a female acquaintance and monitoring her movements. During the police interrogation, the man reportedly admitted to the charges and said, "I like women."

According to reports, from September last year to February this year, the man secretly installed a GPS device on the light passenger car of a woman he met online and monitored her, making it look like he was monitoring her every move online.

To be precise, if you install a GPS device on someone else's car and then post on the Internet that you are monitoring their behavior and let the victim know, you may be charged with a crime. ”

Is it not a crime to install a GPS device?

“In fact, under current laws, the act of installing a GPS device on a car is not punishable.

GPS jammer At this time, the role of the GPS jammer comes into play. One day it will interfere with the GPS placed on your body, making it unable to detect the signal, so that people with intentions can get your location information, thereby protecting yourself. Make sure you will not be caught. A woman radio jammer I think it is very necessary to buy. Moreover, it is a small mobile phone and the price is not expensive.

We know that it is a GPS positioning device, and by using this product, we can clearly know where we are. GPS has many uses, including navigation. However, you know, there are many bad guys who use it to do inappropriate things. Being tracked poses a threat to property and even personal safety.

GPS determines your location by detecting three or more geostationary satellites, but in order to know your location remotely, you need to check the location of the mobile phone and superimpose it on the map, so you need to turn off your GPS mobile phone jammer. When the mobile phone is turned on, the location of the relay station on the mobile phone can be known, so the location information cannot be deleted unless the mobile phone or the relay box installed on the vehicle is turned off.

There are many GPS tracking apps (current location tracking function) on smartphones. Even if they are installed on a computer without permission, the parties often don't notice, it's like someone is constantly monitoring their behavior. GPS jammers protect your privacy from GPS tracking apps.

For example, if you put a GPS phone or location search device in the car of your husband, wife or lover (just put it in the trunk, inside the car or behind the bumper!), you can track the location of the car using your computer or phone. You can search for your current location. GPS radio wave blocker If you rush to the searched location and search, you can find your car within a radius of 20m. You can also find the vehicle in the hotel parking lot. If a person says they are going out with someone, but their car location is detected, you can tell if they are lying.

If you want to block GPS, you can go into an underground parking lot or a multi-storey car park, but if the company finds that there is no GPS activated, the company will ask you where you are, and you have to answer if there is no, remember that it is not illegal to be "fired".

Some people say that people should have the right to buy jammers, and VIP people can use these products to prevent illegal tracking. Freight companies usually use GPS trackers to operate, but mobile phone jammers prevent their bosses from monitoring them. It is also a tool for criminals (not to be expanded here). For prisoners abroad, it is a way to get rid of shackles and surveillance.

The source familiar with the internal affairs of the Ministry of Defense said that these devices have the ability to monitor and interfere with the control signals of "drones". However, there are currently no laws regulating GPS jammers, so there are apparently many very small jammers sold online that can be used by simply plugging them into the cigarette lighter socket. Judging from the photos, it seems surprisingly simple inside. The jammer interference makes it impossible to receive GPS signals, so encryption cannot be used to process them. It may be more effective to wrap aluminum foil around the antenna so that it only receives signals from the sky.

For personal safety and to prevent being tracked by bad guys, I think it is still necessary to buy a GPS signal interrupter.

Blocking remote key communication (lock interference) refers to the act of deliberately interfering with communication when the vehicle's remote key is used to lock the vehicle.

Some malicious individuals and organizations attempt to block the lock by using certain devices and techniques to disrupt the communication between the remote key and the vehicle.

Lock interference techniques include using jamming equipment to interfere with the radio waves of the remote key, and stealing and retransmitting the remote key's signal through a technique called a replay attack.

This means that even if the owner thinks the vehicle is locked, it may not actually be locked correctly.

Lock interference increases the risk of theft

Although high-speed, interference-free wireless LAN standards have become popular, many people still use the 2.4GHz band 802.11g standard wireless LAN (Wi-Fi). This will reduce the situation where you receive radio waves not only from your home, but also from neighboring houses. Wifi jammers have been determined to be emitting powerful broadband radio waves. It continues to interfere with mobile phone signals. I wonder what the radio wave blocking ability is.

The mobile phone suppression device system blocks communication by emitting weak radio waves of the same frequency as the broadcast information radio waves from the mobile base station, and prevents the subsequent display of location registration and polling from being "out of range" and communication. Will be suppressed. The purpose is to provide a GPS jammer that can reliably suppress the communication function of mobile phones and easily meet the standards stipulated by the Japanese Radio Law. This is the interference wave to be suppressed.

Radio jammers, GPS jammers, text blockers and other devices designed to intentionally block, interfere with or disrupt authorized wireless communications. Over the years, I have used mobile phones in movie theaters many times. In the middle of the movie, people's phones rang. If you use a GPS jammer, you don't have to worry about such rude behavior. Just as you as a parent have the ability and right to disconnect the Wi-Fi at home, you should also have the option to cut off the mobile phone signal when necessary.

This means that even if you are tracked or monitored by the car navigation system or GPS logger, you can get away by jamming the GPS. It can be said to be a product with a wide range of applications.

If you think that just because your car is equipped with a GPS system, you can get it back even if it is stolen, it is not the case. Thieves also understand this. They can use GPS jammers to block tracking systems.

Of course, even if it is banned, you can still buy it from online stores. GPS jammers used for vehicle theft can also be purchased online.

With the rapid development of science, the phenomenon of cheating in important exams in life using wireless communication devices such as wireless headphones and mobile phone terminals (including smartphones) is increasing. Exam organizers have adopted various methods to deal with this phenomenon, but today I would like to introduce a very effective anti-cheating device to everyone. This machine is a signal blocker that blocks communications such as mobile phones. The device emits interference radio waves in the same frequency band as those used by mobile phones and PHS, impairing the radio wave conditions received by mobile phones, resulting in the inability to use mobile phones near the device.

In one hall, a concert of a famous conductor was even interrupted. For this reason, theater operators and other theaters are currently strongly demanding the development of effective countermeasure technology. The frequency band range allocated to mobile phones, smartphones, etc. is not just a part of the frequency band, but a certain range, so how can a certain device interfere with radio waves in various frequency bands?

For those who want to crowd in as wide an area as possible (hall, waiting room, etc.). Most mobile phones and GPS devices have a probability of more than 98% that they can be taken out of range. It has the highest output of all general radio wave jammers currently on the market. Protect your privacy by preventing peeping and eavesdropping. In Japan, blocking radio waves without the permission of the Ministry of Internal Affairs and Communications may violate the Radio Law. However, customers need some useful information when buying a jammer, but it is not just general explanation information about how to use and where to apply it.

If you rush to the place where the wifi signal is blocked and search, you can find the car within a radius of 20m. You can also find the vehicle in the hotel parking lot. WiFi is a very convenient way to share files, videos and music at home or in the office. In addition, wireless LAN is also easy to set up and use in daily life. However, there is a major disadvantage. You can share information with friends and colleagues, but that information can be easily stolen. Therefore, wifi jammers make your data sensitive to privacy and personal interests

Isn't it possible to catch the culprit just by setting it up? I want to make a mobile phone jammer that can put my mobile phone out of signal range. If anyone knows the circuit diagram or has already made one, please tell me how to make it. I will not use it for pranks. It is just an experiment. I once asked the police about the jammer, and a lawyer I know said that it is difficult to arrest them unless the jamming radio waves are detected on the spot, that is, unless it is proved that they are being used at the time. Even if you are caught on the spot, the police can only give you a verbal warning.

It's been almost a month, right? The signal where we live is very poor, and it is difficult to surf the Internet and make phone calls. At first I thought it was a problem with the phone. "My name is Mr. Wang, and I live in Xincheng. According to the warehouse owner, "I bought this jammer to interfere with the GPS signal of the mortgaged vehicle, but I didn't expect it to cause trouble to the neighbors. I'm really sorry." said.

The most widely used mobile phone standard is our GSM global system for mobile communications. GSM standard equipment accounts for more than 80% of the current global mobile phone mobile communication equipment market. Although commonly used, you may be most familiar with the use of mobile phones. Yes, calls and text messages rely on GSM to provide stable network data types. But there is much more to the GSM network than we know. Powerful mobile radio uav jammer are one of the guidelines that many electronic manufacturers are familiar with and carefully studied. GSM modules are used in many areas of life, generally used in access control security systems, as well as GSM network car security systems and robots.

GSM also supports indoor coverage. Outdoor antenna power can be distributed to indoor antenna distribution systems through a power divider. This is a typical setup that meets the requirements of high-density calls within the home, and is common in shopping malls and airports. Indoor coverage can also be achieved through wireless signals throughout the building, thereby improving signal quality and reducing interference and echo.

Why do you need a jammer?

GSM is the basic network frequency band for mobile voice communications and SMS services. As we all know, improper use of mobile phones is a serious phenomenon, and using mobile phones in public places will bring a lot of noise to others. When you are reading or relaxing quietly, someone suddenly calls loudly to disturb you? I think so. When we need quiet, we don't want to be disturbed.

The GSM network band is very important for the use of electronic devices. Therefore, in many places where mobile phones are prohibited, jammers are installed to interfere with the basic communication of mobile phones. This is also called GSM interference.

Buying a GSM jammer requires shielding signal types, such as whether you need to shield 3G and 4G network bands in addition to the GSM network. In this way, you can buy a mobile phone jammer, which will block all mobile phone signals. In addition, since you have purchased an electronic jammer, you need to consider where to use it. Portable jammers are convenient for indoor and outdoor use, while desktop jammers use a multi-antenna design. As the name suggests, not only personal use will be more extensive, but also large places such as prisons and courts will use it, with a wider interference range and more types of signal shielding.

I personally recommend an 8-antenna portable GSM jammer to meet your needs. It is enough to provide a quiet reading environment when you need quiet. For enterprises and important institutions, a powerful multi-antenna desktop jammer would be your better choice. This is important in terms of functionality and interference radius, and is sufficient for large-scale applications.

The jammer has no vents, so it turns into a "blast furnace" when activated

Russian military suffers more losses from suicide drones due to poor radio jamming equipment

This particular signal jammer is probably the worst of Russia's inferior military jammers. In addition to revealing "many technical lapses," the blogger criticized its weight, size, and "handles that broke when trying to lift it." An example of technical negligence is improper antenna orientation or mounting. In a properly constructed jammer, the antennas are appropriately shaped, sized, and oriented so that the jamming signal can widely disable a drone's radio link.

The gps jammer also has multiple radio transmitters, each tuned to a frequency band used by a specific type of drone, such as a low-flying FPV drone or a high-altitude surveillance drone, to communicate.

The problem is that many of the FPV drone antennas on this jammer are pointed upward, even though FPV drones often attack from the side. In addition, one of the antennas pointing upward is fixed and cannot be adjusted, as if trying to "send a powerful beam directly overhead."

Such fixed antennas are useful only if enemy drone pilots are forced to carefully fly their drones in a tight area directly above the drone jammer. Jammers also generate a lot of heat, so designers usually pay close attention to various cooling systems, but the designers of this jammer did not.

The main cooling device is a simple fan bolted to the inside of the plastic casing. Worse, the fan has no inlet to draw air in and no outlet to expel the hot air.

As a result, the jammer quickly becomes a "blast furnace" after it is turned on. It gets so hot that you can't touch it, and parts break. Although it's not very effective, it will be even less effective when heated.

The blogger accused Russian influencers of promoting the jammer to "kill our soldiers for their own money" and told Ukrainian drone pilots, "It's like a miracle. They are ridiculed for flying (drones) over incredible objects."

Vanderbilt police officers discovered signal jammers while conducting a search related to a suspected burglary.

Sheriff Robinson stated that the device had the ability to disable Wi-Fi cameras, ring doorbells, and radio-based security systems. It could have shut down all electronic devices, and there is only one purpose for owning such a device - for malicious intentions and unlawful activities.

It is not illegal to possess a signal jammers, according to authorities, but using one is considered a federal offense.

Sheriff Robinson mentioned that the next course of action involves engaging in discussions with legislators. He also pointed out that Indiana lacks a specific law addressing interference with communications, which he believes should be rectified. Robinson expressed his intention to collaborate with state lawmakers to address this issue.

The sheriff's department has stated that everything points to a suspected bold burglary that took place during the day in the Cambridge Village community.

It is suspected that a pair of individuals utilized advanced technology to target a home.

Authorities reported that over the weekend, a pair returned to their residence to discover two unfamiliar individuals present.

The authorities have reported that both individuals fled the location and made their getaway in a gray Jeep.

The deputies managed to apprehend a suspect by fortuitously being present at the opportune moment, acknowledging the effectiveness of a FLOCK camera acquired by Cambridge Village through the sheriff’s office.

Deputies from the Vanderburgh County Sheriff’s Office, in response to a reported burglary, conducted a traffic stop on Jaime Riveras, a national from Chile, on Highway 41.

Sheriff Robinson stated that Riveras asserted he did not make a stop in Evansville while traveling from St. Louis to Florida.

Sheriff Noah Robinson stated that, in addition to eyewitness testimonies, a search warrant was obtained for all items in the car. This led to the discovery of two cellphones, which revealed GPS data indicating that the suspect's vehicle was at the Riveras' residence during the burglary.

Riveras is facing multiple charges, one of which is interference with the reporting of a crime due to the alleged use of a GPS blockers.

Science and technology have made great progress in the past few years. Now mobile phones are not only superfluous, but also a fashion. The current situation is that war zone operators and other war zones strongly demand the development of effective countermeasure technology. If you want to block it, you can use GPS jammers to limit calls and calls from mobile phones around you. We prevent the use of nuisance mobile phones and provide a quiet space and good etiquette. A simple and effective way is to use a mobile phone blocker. It is very effective in places where it is inconvenient to use mobile phones (places with poor environment).

As a measure to prevent harassing mobile phones, communication jammers are allowed in public places. In areas where jammers are active, your mobile phone will be in an "out of range" state. The public is in favor of this measure. It is expected that jamming will be implemented in the future, but the global mobile phone industry will naturally not remain silent. Measures are allowed to disrupt mobile phone communications in public places. Communication jammers prevent mobile phones from making calls, sending and receiving voicemails, and text messages. Civilians use communication jammers.

Mobile phone companies and mobile phone manufacturers are working hard to encourage responsible use of mobile phones. Improving the image of mobile phones will eventually bring profits to these companies. On the other hand, people are also worried that communication jammers may be abused. Unscrupulous retailers may abuse these devices. They are working to prevent mobile phones from being brought into the country. Currently, mobile phones in China cannot be used on a large scale. Many people use phones from two operators. The jammer is a GSM jammer that interferes with mobile phone calls, GPS systems, Wi-Fi communications, etc. I understand the desire to prevent people from using their phones while driving.

Some devices that interfere with mobile phone radio waves are sold on the market. It is easy to emit interference waves, but the problem is that the quality of interference waves is limited to a limited frequency range. I have read that you can use interference devices to disable GPS functions. We are also considering GPS tracking, but if they can be easily disabled, we will have to consider other measures. In theory, radio waves can be interfered with by continuously emitting radio waves with opposite phases to the radio waves, but of course, smartphones are equipped with Wi-Fi jammers that can emit such radio waves.

The strength of radio waves from mobile phone base stations varies depending on the location, but if you try to suppress the communication functions of mobile phones and other devices within a certain range, you can suppress them even in areas where the radio waves are the strongest. Common phone problems include "nuisance calls" such as silent calls and prank calls. This includes cases where we cannot reply to other customers due to too many nuisance calls. Recently, there are more and more people stuck in traffic jams. Unless the interfering radio waves are detected on the spot, that is, unless it can be proved that the interfering radio waves are being used at the time, it is difficult to capture them.

I recently read an article about location-based apps such as "Girls around Me". This app can share your location without notification. How can I prevent it?

With the development of technology, some large companies now install cell phone signal jammers in the work area. This cell phone signal jammer completely separates interference, WiFi and phone functions, improving employees' work. Especially in large conference rooms, 3G/4G cell phone blocker can be used to prevent meetings from being interrupted and meeting information from being stolen, which not only improves efficiency but also improves the protection of some information. Don't let competitors or criminals benefit.

In fact, the "Girls around Me" app uses Foursquare check-ins and Facebook data to make it easier for boys to track girls around, but the purpose of tracking is unclear. There is a slogan on the app's website that suggests how to use the "Girls around Me" app, which is all about finding your lover or finding your one-night stand.

Although Foursquare has withdrawn API access and the "Girls around Me" app has also ended its existence, there are many other apps that may be creepy. An app called Color will hand over your social media photos to strangers, even if you don't want to share them. Another app, Find My Phone, could be used in a very abusive way by any of your ex-partners.

Or, you could use the app to find the nearest restaurant that has a dinner date listed. The app uses your smartphone's GPS tracking module to perform such services, but it also shares your location data with third-party companies to keep you informed of your smartphone, which can be very annoying. You can also place ads based on ads.

Scrambling devices are very simple devices that use basic technology provided by the phone itself.

Will a jammer attract lightning when it is turned on?

Will using a signal jammer outside a building, in an open space, during bad weather attract lightning?

It would be great to be able to call anyone at any time. Unfortunately, restaurants, movie theaters, concerts, and churches are all affected by the surge in cell phones. Because not all cell phone users know when to stop calling. 3G2G signal jammer phones are portable and can be put in a pocket or bag to go out, making them a useful tool to stop people from calling in the above locations.

As for those lightning bolts, there is a small chance that they will hit the GPS jammer. The chance is about the same as the chance of lightning striking a cell phone in the same area, so if there are no lightning rods around, it's probably best to avoid using a handheld jammer in your pocket for safety reasons.

According to Andrew Perpetua, an OSINT (open source intelligence) analyst who is independently sorting out equipment losses caused by the escalation of the Russian-Ukrainian war, data confirmed on the 18th showed that about 110 pieces of Russian military equipment losses (destroyed, damaged, etc. abandoned, captured) were found. The number of casualties of the Ukrainian army was limited to about 25.

Perpetua commented that whether this was the highest number of Russian military equipment losses recorded in a single day, "I don't quite remember, but it's close." This is probably close to the largest gap in the number of losses between the two sides in history. For each damage, Perpetua also lists the weapon that caused the damage (if known).

It is reported that the self-destructive FPV (first-person view) drone destroyed the most Russian military equipment so far that day. The Ukrainian military's FPV drones, which cost about $500 and are deployed about 100,000 per month, damaged about 80 pieces of Russian military equipment. The Russian military seems unable to stop the attacks of Ukrainian military drones.

A recent exposé by a Russian military blogger shows why. Russian industry has produced a variety of signal jammer that can block communications between drones and their pilots, but many of them don’t seem to work. The blogger angrily charged that $2,400 jammers being marketed on popular Telegram channels were not only useless, but harmful.

The jammers gave frontline troops a false sense of credibility, leading to their deaths. “It’s shocking to imagine how many soldiers have died because of false hope,” the blogger wrote. The multi-frequency jammer the blogger dissected is not the first anti-drone jammer used by the Russian military on the front lines of the current two-and-a-half-year war, but it has proven ineffective. In early April, a Ukrainian brigade conducted a daring three-night operation to capture an abandoned Russian tank equipped with a new type of jammer. It seems that this jammer didn’t do much either.

Using radio jamming devices to repel drones attacking critical infrastructure

A drone crashed near a Pennsylvania substation in July 2020, most likely with the goal of destroying the substation’s electronics. The drone was a modified multi-rotor aircraft manufactured by China's DJI Innovations.

Fortunately, the attack did not disrupt power supply or damage substation equipment, but it was the FBI and the Department of Homeland Security (DHS) that investigated the incident. The National Counterterrorism Center (NCTC) concluded that this was "the first case of a modified drone attack on energy infrastructure in the United States."

Such attacks will continue to occur somewhere in the world. This is because relatively cheap commercial drones can be used to attack critical infrastructure.

Many people consider installing mobile jammers in schools, and the fact that many students use their phones during class has become a major problem in schools (especially high schools).

Many educators struggle to understand how to deal with electronic devices in the classroom. Some educate students about their negative effects and encourage them to regulate their use. Others highlight the possible applications of mobile devices in the classroom. However, many simply try to ban everything. One principal in British Columbia took the school ban to the next level by installing a cell phone signal jammer. There was just one problem. The device was illegal in Canada. The principal ordered the Chinese device online, but some angry students soon found out and told him that he was breaking the law. So much for the idea. Now, he is still unseemly, but for some students, the use of mobile phones in school seems to be some kind of civil rights issue.

Steve Gray, principal of Hardy Secondary School on Vancouver Island, bought the cell phone jammer from an online dealer in China. He said that since the school banned cell phones and the kids were still using them, he had to try several methods.

He also pointed out that it is very important to control students' use of mobile phones. Because their behaviors range from cyberbullying to providing answers for certain online violations. Using bluetooth jammer can effectively prevent students from being exposed to these behaviors.

This seems not to be for banning the use of mobile phones, but to maintain the authority of the school. In this regard... it is completely counterproductive. Many schools have effective mobile phone bans without resorting to technological blockades (I attended such a high school).

Therefore, the use of mobile jammers is not only disadvantageous, but also conducive to use in special places.

In addition to basketball, the only thing better than sports is to go to the cinema to watch movies. This is a rare hour and a half for me to break away from the real world and immerse myself in the fantasy of others. Using a mobile phone in a theater is distracting. Just like a drunk fan at a sports game, it is distracting. Look closely, the sudden ringing of the phone next to you interrupts your thoughts, which is terrible.

If you are in an emergency meeting and don’t want to participate in unnecessary calls or messages during an important meeting, you can take advantage of mobile signal jamming technology. The use of 3G/4G mobile phone jammers, which allows people to avoid calls and text messages without turning off their phones. Enabling this technology will directly block the signals from the base stations and prevent you from communicating with others through your phone.