Signal Jammer Tech

By comparing these two devices side by side, M 27 and M25 are almost identical. From the installation bracket, CPU, wiring, and interference head, M-27 is no different from its brother. Blinder is ready to use out of the box, including all necessary wiring, external speakers, CPU, and two GPS shielding heads.

Overall, the M27 is a high-quality and high-performance wifi blocker

Installation is almost effortless. By becoming slightly familiar with automotive electronic devices, amateur installers can easily connect the device. All you need is a power supply and a ground wire. It is easy to wire the signal jammers head through a firewall through telephone type connectors, which are small enough to pass through the smallest hole. Then the rest is to install the GPS interceptor head. This is where it's a bit difficult.

The installation brackets are independent of each other, which means that each side of the jammer head is supported by separate brackets. For normal operation, the jammer head needs to be completely straight and level with the road surface. This means that in order to install the pan tilt correctly, you must find 2 independent and completely horizontal surfaces on the car. If installed on the top of the bumper, this may be easy, but most people do not want to clumsily place two large cell phone jammer heads at the front of the vehicle. It is difficult to complete the correct head installation on many vehicles, which is why most Lens hood users create their own mounting brackets.

Once the head is installed correctly, M27 has made significant improvements compared to the old version. With a more powerful head and fully upgradeable CPU, this new device is ready for all new laser Radar speed gun developed. In most cases, this device will interfere with the LiDAR all the way to the muzzle. However, Blinder did encounter some interference issues.

For certain guns, such as the Ultralyte LR-B, occasional malfunctions may occur. Independent testing has shown that vehicles equipped with two gps jammer heads at the front of the vehicle cannot cover high reflective areas such as headlights. This is a particularly undesirable situation, as police officers are often trained to aim their headlights when they are unable to produce instant and fast readings. To solve this problem, a headlight laser protective cover may be needed. Laser veil is a liquid coating applied to headlights. Applying this technology to the headlights will greatly help Blinder achieve better interference effects.

Another solution is Blinder M47. This is the M27 with two additional interference heads. If users encounter interference when using the M27, two additional heads are very suitable for achieving better results. Two additional jamming heads will enable the vehicle to be bulletproof against most laser Radar speed gun in almost all cases.

Philadelphia (CBS) - What is a cell phone jammer? Why don't we all have one?

Dean Liptak, a Florida high school teacher turned professional wrestler, has had administrative and legal troubles recently. Imagine telling that person you forgot your science homework. Not for slapping a teen in desperate need of an attitude adjustment to the mat (although one can only imagine the fortitude it would take to not do it on a daily basis). Instead, he found a less aggressive but more illegal way to stop kids from checking their phones in class.

Liptak brings to schools cell phone jammer, radio frequency transmitters designed to block, jam or otherwise interfere with authorized radio communications. The device blocks cell phone signals and prevents teens from using their phones.

The problem is that it prevents everyone in the area from using their phones, including emergency responders. That's why you need to know that even though you can buy them on the Internet, federal law prohibits the marketing, sale, or use of jammers.

Mr Liptak is currently suspended without pay. He may need to find an easier job. Things like using pile drivers, choking bashes, and jumping brain damage to make a living.

A Florida teacher has been suspended for using signal jammers to prevent students from using their phones in class.

Teacher suspended for jamming mobile phone in classroom

Pasco County School Board members on Tuesday approved a five-day suspension without pay for Dean Liptak. Liptak did not dispute the decision.

Liptak activated the jammers in his Fivay High School classroom between March 31 and April 2, officials said. He later told school district investigators that he never intended to create a problem. He said he believed gps blocker were allowed as long as they were not done for malicious purposes.

Sheriff Kurt Browning wrote in a letter of reprimand that Liptak may have violated federal law by jamming signals that could interfere with others calling 911 in an emergency.

Washington - After considering how combat might be conducted in many different environments, the U.S. Army is changing its approach to long-range electronic warfare, signals intelligence and cyber systems.

The U.S. Army will customize long-range jammer device for the European and Indo-Pacific theater

The Land Layer System-Brigade and Above Echelon (TLS-EAB) is intended for use by larger Army formations, including divisions and armies with thousands of troops and extensive firepower. The system is considered a key part of the service's "depth awareness" strategy - the ability to identify, monitor, target and engage adversaries from longer distances with greater precision.

Mark Kitz, head of the Program Executive Office for Intelligence, Electronic Warfare and Sensors (PEO IEW&S), said the Army is "evolving our approach to acquisition," especially for flexibility. For example, the Indo-Pacific region, where the United States could come into conflict with China, and Europe, where the United States could come into conflict with Russia, have very different objectives and terrain.

"The Indo-Pacific Command looks very different from Africa, very different from anywhere," he said. "We can't just put together a cookie-cutter solution that barely works in that combatant command."

Defense officials consider China and Russia to be serious threats to national security. Both invest in military science and technology and are believed to be able to impede or defend against U.S. military communications, targeting, and attack.

The Army signed separate agreements with Lockheed Martin and General Dynamics Mission Systems in August for the TLS-EAB concept and demonstration. The first phase is valued at $15 million for 11 months. Lockheed and General Dynamics rank among the world's five largest defense contractors by revenue, according to Defense News analysis.

ABU DHABI, United Arab Emirates - The CEO of Taiwanese company Tron Future says the system is ready for large-scale deployment, with production rates expected to reach 100 units per month by 2023. The company's anti-drone radar is already in use by the Taiwanese army. As demand increases.

Supplier says anti-drone radar ready for 'large-scale deployment' in Taiwan

Tron Future is only four years old, but its T.Radar Pro technology has already found a wide market in Taiwan, the Middle East and South Asia. The drones with the Active Electronically Scanned Array (AESA) radar can detect distances of up to 5 kilometers and weigh just 15 kilograms, which is what CEO Yujiu Wang said attracted customers the most.

"The radar was designed out of the need to build layered defenses in the air to protect Taiwan from the constant threat of different types of Chinese UAVs," Wang said in an interview at the IDEX arms show.

He explained that its development was guided by four principles: keeping it light and small; Equipped with 4D micro-Doppler function to distinguish multi-rotor drones and birds; Low cost; And performance against small, medium and low-altitude flying targets in urban environments.

The threat from Chinese drones has increased in recent years. In January 2023, a Chinese military magazine stressed that in the event of war in the Taiwan Strait, unmanned aerial systems would play a vital role in targeted strikes.

Wang said that at the height of the tensions, deployed radars detected as many as 100 Chinese drones conducting surveillance over Taiwan in one week. Key features of T.Radar Pro include an open architecture for image recognition applications, air traffic management, and interfaces for hard or soft kill countermeasures. It has a power consumption of 250 watts and a maximum signal bandwidth of 30 MHZ.

Initially, these radars were in service with the Taiwan Army and deployed over key islands, a challenging environment where the movement of waves in the ocean can create false targets.

Based on growing domestic and international demand, the company expects to produce 100 radars per month in the coming year and is considering opening a second production site in Taiwan. The T.Radar can be sold separately or as part of Tron Future's larger anti-drone system. The complete setup also includes a drone jammer and an interceptor, which the company's website describes as offering "a choice of explosive or non-destructive warheads to handle different situations." The company claims that the system together creates a defensive protective dome with a diameter of 5 kilometers.

Wang stressed that Taiwan's military does not want to be the first to attack in the face of China, as this could quickly escalate into an all-out war. The air defense platform is designed with this in mind, where each different system represents a logical chain that tries to avoid the use of hard kill countermeasures in the first place.

By Elisabeth Gosselin-Malo

Milan, Italy - Anti-drone weapons manufacturers say they are increasingly miniaturizing and simplifying their solutions to meet the growing demand for man-portable weapons as recent conflicts highlight the importance of mobile capabilities.

Portable counter-drone systems (C-UAS) have been around for some time, but their proliferation has accelerated in recent years amid the growing threat of weaponized commercial drones. In the 2019 C-UAS Database report compiled by Bard College's Center for Drone Research, 111 (21 percent) of the 537 market products analyzed were handheld solutions offered by more than 29 different countries.

Warren Brown, vice president of marketing at Fortem Technologies, explained that the purposes and ways in which these systems are used today have also changed over the past decade. "Historically, security details and protection for major events or critical infrastructure have been focused on fixed solutions. Recent conflicts in the Middle East and Ukraine have shifted the focus to 'mobile' systems that offer advanced radar detection capabilities, ease of deployment and portability, low overall operating costs, and low cost per use, "he said. The belief that counter-drone systems measures must be large-scale to be effective also appears to have changed to some extent.

Previously, many militaries relied on more traditional jamming signal alternatives to counter enemy UAVs because they lacked access or resources to more appropriate and reliable systems. However, Brown said that relying on the deployment of legacy equipment is not always effective because they are not necessarily developed to address the comprehensive and evolving technology behind the drone threat.

"Traditional cell phone jamming solutions have a low success rate, forcing people to use expensive and impractical systems, such as large missile weapons, or even deploy fighter jets to try to mitigate the threat - which is often ineffective against small, maneuverable and hard-to-detect drones," he said. The recent failed attempt by South Korea to shoot down its neighbor's drone for several hours shows this.

Manufacturers have taken note of these issues, redesigning on top of existing technologies to more effectively address the dangers posed by drones, especially smaller ones that may be more difficult to deal with. In May 2022, Fortem Technology sent portable DroneHunters to Ukraine, saying in a press release that the company took an existing C-UAS system and further miniaturized and simplified it for use as an expeditionary rapid deployment weapon.

Matt McCrann, CEO of DroneShield, believes this illustrates where this type of technology is headed. "Of course, our goal is always to take a feature and make it easier to use, more efficient and more cost effective." Smaller, better, cheaper, "he said.

DroneShield's handheld countermeasures, such as DroneGuns, offer many advantages. As a small, lightweight system with easy-to-transport anti-drone system capabilities, it can be stored in a sling in a vehicle, backpack or body as the battlefield changes. Powered by replaceable batteries, DroneGuns are non-kinetic and employ an electronic attack method, which means they can deliver unlimited "bullets" that are more economical than kinetic systems and can be operated more safely with minimal training.

In a similar way, other portable systems, such as Fortem's DroneHunters F700, offer countries a lower cost-per-use alternative than other higher-priced systems on the market. Brown pointed out that their weapons cost just a few hundred dollars per shot, which is much cheaper than high-energy systems such as electromagnetic pulse (laser) weapons, which also require a lot of power.

Another benefit of the Fortem system for suppressing UAVs is that the system can use cone-sleeve parachutes to shoot them down in a controlled manner, allowing reconnaissance and analysis of enemy systems and reducing collateral damage. This is in contrast to more traditional defense techniques, which can cause an enemy drone to explode or fall from the sky, often harming civilians and infrastructure in the process, or allowing it to return to its launch point without the need for potential research into its mission or location. It comes from.

Brown claims that in Fortem's more than 5,000 record captures, its solution has a 92% success rate. During the FIFA World Cup in Qatar, DroneHunters were further deployed to protect multiple stadiums. For DroneShield, McCrann said they are highly effective in both military and more traditional security environments, pointing to the recent example of using its DroneGun Tactical to neutralize four hovering drones during Brazil's presidential inauguration.

Despite the many advantages of these systems, MacLean warns that scaling down any given feature usually involves one or more trade-offs. "For electronic countermeasures, this (miniaturization) trade-off is often reflected in the total power output of the system, where a smaller one may indicate a smaller effective range and need to be closer," he explained. However, in drone-to-drone scenarios, such as DroneHunter or similar systems, the tradeoff of electronic warfare payloads may be acceptable, since the engagement takes place at close range anyway.

According to a now public DHS assessment, small gps blocker, particularly "personal privacy devices" readily available on the Internet, pose one of the greatest risks to the nation's critical infrastructure.

Homeland Security report details privacy signal jammers risks

According to researchers at the Department of Homeland Security's (DHS) Infrastructure Threat and Risk Analysis Center (HITRAC), these devices, also known as PPDS, are among the three most likely causes of GPS outages. However, of these three scenarios, only the one involving multiple PPDS is considered the most likely to occur and the most likely to cause harm to industrial infrastructure operations.

The study authors evaluated the impact of different types of GPS interference after examining their possibilities. The more likely a certain type of disruption is to occur, the greater its potential impact, and the higher its overall risk.

To better understand what would happen if GPS signals were weakened or disrupted, the Department of Homeland Security took a closer look at how to integrate GPS into four of the 16 infrastructure sectors the agency considers critical to the nation. These four sectors - communications, emergency services, transportation (all types), and energy - were chosen because GPS PNTS are used to support or accomplish their core mission.

While the operations of all four sectors could be severely disrupted by at least two of the eight scenarios, scenario D - a scenario containing two or more personal privacy devices - is the only one of the eight that has a high impact on each sector.

• Transport. The transport sector is analysed in air and ground/sea modes. Most experts agree that for the aviation industry, the effects of PPD are likely to be viewed as isolated incidents of GPS signal attenuation, with problems lasting more than a month. However, that would be a hassle and a capacity issue because the nation's air traffic control system has multiple layers of redundancy.


• Energy. The energy sector "relies on GPS to provide power system reliability and grid efficiency, to synchronize services between power networks, and to detect faults within transmission networks," the researchers said. GPS is a key component of wide area distribution monitoring system, phase monitoring unit and disturbance monitoring equipment.


• The operator uses a phasor measurement unit (PMU) that relies on precise, universal timing information in the GPS signal to achieve extremely accurate time stamps that are related to sampled voltage and current inputs. "Collecting and collating these measurements provides a powerful technique for monitoring and modeling power networks," the authors explain.


• Communication. There are many types of communications infrastructure, including wireless, wired, satellite, and broadcast, that use timing signals from GPS constrained oscillators (GPSdos), clocks that maintain their accuracy by constantly referencing GPS time sources.

But communications companies have long factored in national disasters and unexpected outages, so they are usually prepared to deal with problems. If the timing system loses its lock on the GPS signal, it goes into hold mode, relying on its internal clock to slow down the decline in timing accuracy. The duration and performance level of the system depends on the quality of the non-GPS timing source.

Emergency services. Emergency services appear to be the sector most vulnerable to short-term GPS outages. First responders use GPS to navigate to the incident and, like the entire communications sector, they stay in touch with each other through a network that often relies on GPS-regulated oscillators.

"If the architecture of first responders' radio networks is centered around GPS timing, there is no ready backup when the GPS component is compromised," the DHS report said. "While dispatchers will still be able to communicate with the various emergency units, there may be disruptive effects on radio signals or untimely delays in communication voice radio systems using simulcast technology."

Without GPS, E911 service would also suffer and computer-aided dispatch systems would be hampered, making it more difficult to locate accident and stolen vehicles and dispatch fire, medical, and police. "While the department has not yet reached the point of complete reliance on GPS services, the use of GPS improves the department's ability to mitigate damage and assist in timely rescue responses," the researchers wrote.

At least 20 vehicles were targeted by burglars in the Lone Tree neighborhood

The burglars struck at 9:45 p.m. Sunday. Wearing clothing to conceal their identities, they fled in a stolen Kia Sportage that crashed into 20 unlocked cars believed to be easier to access.

The break-ins didn't seem to be widely known among residents, "I don't know what's going on." I have a private garage. So I don't know what's going on."

His residential area, Retreat, was hit as well as Cortland, opposite Park Meadows Drive. Douglas County Sheriff Darren Weekly said there was no specific reason for the location of the attack.

"Anywhere there's a lot of traffic. They're all potential targets for parking lots, whether it's an apartment complex parking lot, a light rail or a shopping mall."

Directly below the block is the RTD Lone Tree station, where two police officers suspected of being car thieves were first shot dead last year.

Douglas County residents are being warned to set car alarms and not to leave valuables in their vehicles.

Another resident at the retreat said: "I often worry about this happening to me, so I don't leave things in my car."

That night, the thieves appeared to target Honda and Hyundai vehicles, blocking the locks.

It's not legal, but some people are taking steps to silence other people's cell phone calls

Although illegal, some people are using cell phone signal jammer to block cell phone signals and silence calls.

This mechanism can be sold online and will cause call interruption when used.

"Oh, that's rude, because this could be a very important business call," an unidentified man said.

Nationwide, cell phone interference is a federal crime punishable by imprisonment or a fine of up to $100,000.

"What if they need to call 911 before they can turn on their phone?" said KCAL9 legal analyst Steve Meister.

"If you, with your self-proclaimed genius and your self-proclaimed right to remain silent in a public place, decide to turn off their phones, then you could be interfering with communications that really matter," Mester explained.

A Florida man accused of using a cell phone jammer while driving on a Tampa highway for years will face a $50,000 fine.

Major Clyde Eisenberg of the Hillsborough County Sheriff's Office said: "It's just amazing. We've seen a few pocket cell phone jammer
before, but never one of this size and scale. It's very capable and does shut down the actual entire cell site."

A major phone company noticed interference in their cell towers and alerted authorities. The man claimed his goal was to stop drivers from making phone calls.

While cell phone signal loss doesn't always mean someone is interfering with the call, if suspicions arise, call your cell phone carrier to verify that your phone is working properly. If your phone is working but the problem persists, call the authorities.

I've heard that WiFi today is not a completely secure connection and can be hacked. I also heard there's a new camera on the market that I'm afraid will be discovered. Can I protect myself? The Dropcam HD WiFi security camera is a small webcam that works via USB. It offers HD quality video and night vision. It also supports two-way recording and DVR functions. By the way, the webcam is always on and can be accessed through an iPhone, web browser, or Android-based personal device. To prevent this type of private access, many companies now use WiFi jammers to block it.

The wifi blocker uses a private camera to take snapshots

If the Dropcam HD WiFi security camera can find you, it can't stop it from saving the captured data to a connected PC. It should also be noted that live webcam streaming video is streamed and encrypted via cloud services. However, this security camera uses a WiFi connection to connect to a mobile device, such as an iPhone or Android smartphone. The Dropcam HD WiFi security camera costs $149. If you choose to use DVR-style recording, you'll pay $9.95 per month. To prevent your videos from being transmitted to your personal mobile device via WiFi connection, you can use a phone jammer to block Dropcam HD WiFi security cameras and ensure that your privacy is not monitored by others.

Do the police really tell us how to monitor and track our phones? Is that right? Hello, everyone! I heard the ACLU received a certificate that gave the police instructions on how to track a phone jammer laptop and use it to spy on us. But is it really the case? The American Civil Liberties Union (ACLU) has received documentary evidence that law enforcement has developed training programs to train police to track cellphones and obtain all kinds of private information from cellphones and even cell phone carriers. The documents also contain a number of invoices from different operators to explain the different services they can provide to law enforcement, including the prices for those services.

Cell phone jammer prevent police from stealing personal data

The New York Times has published these documents in PDF format, with 189 pages, which you can easily read and use additional instructions to better understand their meaning. For example, this describes how the police can electronically "clone" any phone in order to have full access to the text messages you send or receive. In addition, a comprehensive privacy statement has been developed to prevent cell phone tracking and other types of cell phone espionage before the public and the media find out about this fact.

In addition, you can read bills from mobile carriers such as AT&T and Verizon, which list the services you can buy from law enforcement. So the legality of all this is really questionable. However, you can use a cell phone jammer to protect yourself from the police, who will clone your phone and steal all your personal information without taking any orders.

Technical classification and principle analysis of GPS signal blocker

In fact, the current Positioning can be roughly divided into two categories: GPS(Global Positioning System, global positioning system) and LBS(LBS-Location Based Service), Beidou GPS positioning system. From the engineering principle, GPS vehicle positioning is carried out by receiving the longitude and latitude coordinate signals provided by GPS satellites, while LBS is calculated according to the difference in cellular communication base station signals, which is generally referred to as mobile phone map positioning.

The working principle of the radio wave jammer:

GPS interference mainly releases radio interference that may prohibit the GPS locator from being in a specified electromagnetic band and create the same electromagnetic environment that prevents the signal jammer device from using the signal. At present, it is mainly used to protect GPS satellite signals, so that data cannot be uploaded to the platform, and the device cannot be used normally when offline.

In theory, GPS signals are blocked (power jammers can be blocked with LBS signals) and car dealers cannot find vehicle information. Of course, the principle is that the phone jammer must be powered on or the GPS tracking device removed, otherwise the car can continue to locate.

Protect privacy and vehicle location:

In real life, in order to effectively protect the privacy and security of the personal vehicle driving route, as well as some mortgage car behaviors to protect the privacy and security of the vehicle, the location of the vehicle is not perceived by others, the gps blocker is used, which is equipped with 6-way signal transmission, independent switch and on-board load, which can effectively isolate the mobile phone card positioning and GPS satellite positioning signals. The background can not locate the vehicle location information, effectively protect property and property safety. Security users are maliciously installed by the target device.

Hello, everyone! Can anyone tell me that this Bluetooth SIG can actually use technology to track the location of many devices? Although Broadcom invented the new GNSS chip, the Bluetooth SIG(Special Interest Group) developed this new GNSS profile specifically for the exchange of GPS data. All devices that support Bluetooth 2.0 and later can use this profile to easily share GPS location information with other wave blocker device nearby via a nearby Bluetooth connection. What does it offer us? Let's see.

GPS jammers prevent location sharing

• First, all Bluetooth-enabled devices can find your location via Bluetooth, improving indoor tracking. Second, wearables in the future may forget to use GPS for location tracking altogether. The third one is probably the most interesting. You will see that the Bluetooth operates within a radius of only a few meters. Imagine a situation where one of the GPS-enabled devices is located in a room and the other devices don't have GPS tracking. Even so, everyone has Bluetooth integrated. They share GPS data from devices so that attackers can see that all of these devices are currently in one room, not just GPS-enabled devices. It's reverse sharing, you know?


• So of course the answer to your question is yes. But in this case, you're not powerless. cell phone jammer prevent GPS from releasing Bluetooth SIG GNSS profiles, thereby preventing your Bluetooth device from being recognized and shared with other devices in the room.


• I read that Broadcom will be making their new GPS tracking chip in the near future. So I was curious to see if it could find the location more accurately and how to avoid this need. Broadcom recently announced a new GNSS location tracking chip called BCM4752. It is small enough to fit any type of smartphone or other mobile device, and is even twice the size of other similar chips. It has also improved the speed of signal transmission and reception, and has four satellite navigation constellations: GPS, GLONASS, QZSS(made in Japan) and SBAS(QZSS and SBAS all use the same frequency, GPS L1, L2 and L5 bands).

WiFi and bluetooth jammer will block signals from the tracking chip

1. Moreover, the Broadcom BCM4752 chip is already suitable for indoor positioning tracking. To make it work properly, use WLAN and Bluetooth wireless connections and NFC communication. All of these bands, along with GPS and other satellite navigation systems, make this tracking chip an absolute new player in the satellite tracking market. Broadcom, by the way, may already be supplying mobile device makers.


2. Want to know how to get rid of this powerful stalking? It won't be as easy as you'd like, but it's possible. You can combine wave jammers, WiFi jammers, and Bluetooth to block signals from Broadcom's BCM4752 tracking chip. You must also interfere with the NFC signal. Only when all these radio signals are protected can you safely go on this wonderful hunt.

This jammer will work later to remove the signal and eventually they will disband on their own and later we will also cooperate with Telkom," Deni said at the Garut county government secretariat live, quoted from Antara on Monday.

How cell phone jammer work

Jammers work by sending radio frequency signals to the nearest BTS tower. The signal is basically on the same frequency as a cell phone, and strong enough to cover it.

The jammer signal and the cell phone signal eventually collide, and the process then causes a loss of communication between the cell phone and the base station.

Depending on the make and model, jammers come in different variants and capabilities. Common jammer devices block one of two cell phone frequencies, tricking the phone into thinking it doesn't have BTS service because it only receives one frequency.

Phone screens covered buy jammers may display the words "Out of service".

See also:

Myanmar's track record chokes internet

However, a new technology version of the jammer can block multiple frequencies and even adjust to match the target frequency.

The Ministry of Communications and Information has banned the use of gps blocker or items that may interfere with signals/frequency propagating within Indonesia. Jammers that are not in the national interest will be confiscated, and the assemblers and sellers will be prosecuted.

This is under Law No. 1. Decree No. 36 of 1999 on Telecommunications prohibits the circulation of goods in Indonesia that interfere with signals/frequency.

Generally, the transmission power of the Mobile phone jammer is tested within 30W in the test room, so the theoretical shielding range of the Mobile phone jammer in the test room is about 0~20m. But please note that this is the theoretical distance. The actual effect should be combined with local signal strength, especially when there are signal base stations nearby. If there is a signal base station within 200 meters, the shielding effect will be greatly reduced. Walls can also weaken the shielding effect of radio interference devices on laptops. Due to the strong signal near the window, the shielding effect will be weakened. The standard classroom of the school is usually about 75 square meters, and each classroom is equipped with a Mobile phone jammer to achieve better results. It can be placed in the middle of the classroom for maximum protection. Of course, this must be determined in conjunction with the power wiring. It is also common to place cell phone jammer on the podium.

• In the same environment, the base station signal can also be affected by wind interference and air humidity.


• This can also cause fluctuations in the signal field strength. In addition, there are differences in the intensity of the infield and outfield.


• The adverse effects of ground building structures and metal objects on GPS jammers are very complex for mobile devices.


• Based on the project budget, the selection of mobile jamming devices should be reasonably planned. The selection of shielding equipment should consider shielding radius (i.e. power), performance stability, and service life.


• It must also be determined based on the on-site environment. At the same time, consider using mobile phone jammers with adjustable radius (i.e. adjustable power) or using directional antennas to control the main transmission area (direction) of the shielded signal.

The weather can also affect the effectiveness of the jammer

1. At present, the power and channel of each base station are different, and the distance from each base station to the prison is also different.


2. It is generally recommended that the gsm jammer is located within a monitoring area of 200 meters or 300 meters without the need for a base station laptop to be installed.


3. If there are base stations, it is necessary to consider the impact of strong signal shielding on high probability base stations.


4. The scale, number of buildings, structure, height, and floor height of each prison vary.


5. The distribution direction, power, terrain and other factors of mobile phone base stations around each prison are different, and the strength of Mobile phone signal signals transmitted by remote base stations are also different

The most important place to use the Mobile phone jammer is the school examination room, especially the high school entrance examination, college entrance examination, postgraduate entrance examination, CET-4 and CET-6. There are also many schools that have installed jammers. They use mobile phones for a long time in class, and usually use mobile phones in the Final examination. Some schools even use mobile phone jammers in their classrooms. So how can we install a mobile phone blocker in school exam rooms to achieve the best results? We will elaborate on the different situations mentioned above.

Super effective Mobile phone jammer

The purpose of the gsm jammer is very clear and simple in frequency: to prevent communication on certain frequencies. However, since it is not easy to prevent devices from communicating with other devices, the solution to prevent this type of information transmission is very simple, similar to DDoS attacks: introducing noise at a specified frequency, unnecessary information will saturate the tape. Prevent them from obtaining true information. signal jammers can be used to interfere with various types of communication or devices such as cellular networks, radar, Bluetooth, GPS, infrared, etc. Although widely used