Category: Tag Cheat

Mobile phone jammer is a device that prevents the transmission or reception of signals by transmitting the same radio waves as mobile phones. It is designed to help people solve various problems related to mobile phones, radio signals and wireless connections. Candidates are accustomed to using some high-tech cheating tools during exams. This is unfair, and it is difficult for the teacher to detect with naked eyes. Therefore, some test centers turn on the cell phone jammer during the exam to prevent the mobile phone signal transmission from the root cause, thereby preventing cheating in the exam.

UNUSUAL | Equipped with a jammer, it disrupts cell phones in its neighborhood

A Montélimar resident was arrested on Friday for disrupting mobile communications in the city center. He had equipped himself with a frequency jammer because he felt he was being spied on.

A Montélimar resident was arrested that Friday afternoon for a specific crime: “Possessing and using a device that tends to disable communications equipment”. Because the man was using a signal blocker.

22 Antennas Wireless Signal Jammer

The fear of being spied on

At the police station, he explained that he felt he was being followed. He recently installed a camera in his apartment in the Old City to monitor his home. Except that he regularly had the impression that his camera was being controlled remotely and that individuals were spying on what was going on. He was therefore given a jammer that is strictly forbidden as it neutralizes the waves and deactivates cell phones and GPS. In the case of a strong jammer, this can even interfere with the aircraft.

National Frequency Agency survey

In addition, the cellular network in this sector was very disrupted. The National Frequency Agency therefore carried out the investigation. She sent her agents to the center of Montélimar with special equipment and they quickly discovered the apartment. The police then went to the Montilien house where they found the jammer and got off to the forties. The man who admitted the facts will be called to the police station again earlier this week.

InfiniDome carried out a live demonstration of its GPS interference / spoofing protection for autonomous vehicles on site

CAESAREA, Israel, June 25, 2019 / PRNewswire / – infiniDome Ltd., the Wireless Security Company, held a live demonstration of GPS interference / spoofing protection for a self-driving autonomous car on June 11 at the EcoMotion Main Event at The Centerpiece of the international future mobility conference, the EcoMotion Week 2019.

In the demonstration, the BWR self-driving car was operating in the conference demo center when a nearby handheld gps jammer was activated and the navigation functions of the autonomous car were deactivated. Then infiniDome CTO could easily connect the GPSdome protection solution, and the same autonomous car with the same GPS system could not only detect the jamming attack, but also maintain the GPS signal and navigation functions during the jamming attack.

handheld gps signal jammer

“In our live demo, we presented our proven solution for protecting GPS-based systems from nuisance attacks from major players in the industry, some of which are key partners with DRIVE (the automotive accelerator in TLV to which we are a part),” said Omer Sharar, CEO of infiniDome. “The competitive advantage of our cyber solution is that the GPS signal is preserved during these attacks. Unlike the competition, our approach is not only to detect the attacks, but also to protect them. We strongly believe that the autonomous car cannot stop by the side of. ” The road, when attacked, must go on. ”

“The EW (Electronic Warfare) approach of our GPSdome protection is a breakthrough in the field of autonomous cars,” said Moshe Kaplan, CTO of infiniDome. “We are advancing our technology to fully protect the autonomous car from interference and spoofing attacks from other wireless communications it depends on, such as 5.9 GHz (used for V2X communications) and its cellular connection to the world.”

“GPSdome is field-tested and is supplied to numerous customers around the world,” said Ehud Sharar, President of infiniDome. “Our commercial product is a technology that will allow the industry to continue to rely on the availability of GPS for navigation, sensor fusion and V2X that simply won’t work without GPS.”

infiniDome Ltd. offers front-end cyber solutions that protect wireless communication from interference and spoofing attacks. The company’s first product, GPSdome, protects against interference and spoofing of GPS-based systems, which are critical to autonomous vehicles, drones and connected fleets. GPSdome has proven itself in the field and is sold to customers worldwide.

Recording jammer to prevent eavesdropping from being recorded!

Have you ever had such confusion: private meetings and conversations with friends are worried about being eavesdropped or recordings reveal privacy; business negotiations are afraid of being eavesdropped by competitors leading to project failure; the conversations of confidential meetings of the unit are recorded or eavesdropped leading to leakage, etc. and many more. How to protect the valuable conversation information from being stolen by others?

While high-tech brings convenience to the general public, the pursuit of high-quality life has also become a life attitude that people admire. Therefore, the protection of privacy rights has become a hot topic at the moment, and more and more politicians, celebrities and business people are beginning to understand protection The legitimate rights and interests of one’s own privacy, how to prevent recording and anti-eavesdropping has been paid attention to. How to effectively prevent the disclosure of secrets caused by recording and eavesdropping? Choosing a high-end and safe anti-recording device becomes your wisest choice right now!

The wireless jammer is a very effective product. It can send out interference signals to prevent the pickup or microphone from picking up normal voice information, and pick up the “buzzing” noise to protect the voice information. The recording jammer is It is the simplest and most effective to protect the security of voice information from the source of sound collection. Shenzhou Mingda has focused on information security for 14 years. The newly developed L7B recording jammer is upgraded on the basis of the original equipment. The FPGA-based ultrasonic noise algorithm eliminates the high frequency noise of the old equipment.

handheld blocker

Features of recording jammer MDPB-L7B:

1. High interference intensity: Our self-developed FPGA-based ultrasonic band noise algorithm can effectively interfere with digital devices such as mobile phones and voice recorders, can record noises, and completely eliminate the harsh sound that a few people can hear.

2. Long interference distance: The anti-recorder has an interference distance of more than two meters for 95% of mobile phones, an interference distance of more than 5 meters for 60% of mobile phones, and an interference distance of 10 meters for iPhone X and iPhone 8, which can be effective Protect the conversation

3. There are many interference devices: it has good interference effects on various mobile phones such as iPhone series, Huawei mate, Honor, OPPO, VIVO, Samsung, Nubia, Meizu, Nuts, etc., and it has good interference effects on Sony, Samsung, Sanyo, Newman, Lenovo, Olympa. Sound recorder test interference effect is good

4. Mute work: The anti-recorder has replaced the ultra-quiet fan, and the sound produced during work is smaller and quieter than the old equipment.

In modern society, recording conditions such as mobile phones and voice recorders are very convenient. Any important negotiation, especially business negotiation (such as legal negotiation, contract negotiation and other legal relationship communication) or other important matters, is very worried about being recorded by the other party. Evidence against oneself. The latest L7B recording jammer developed by Shenzhou Mingda can solve your worries. The recording jammer is a portable, highly integrated security protection device that integrates ultrasonic interference and voice sound wave interference. It can effectively interfere with digital and analog recordings such as voice recorders, mobile phone recordings, and tape recordings, and interfere with wireless eavesdropping, wired eavesdropping, and isolation. Various voice eavesdropping devices such as wall tapping and laser tapping make it impossible to identify the conversation voice obtained by the eavesdropper, thus effectively protecting your privacy.

Russian drones can interfere with cell phones 60 miles away

With new cell phone jammers, these drones can disrupt communications over a distance of 135 miles from their launch site.

The Russian Defense Ministry announced on Nov. 6 that the nation had extended the range of its drone-borne jammers to 100 km, or more than 60 miles. Drones as a platform, rather than just a target, of electronic warfare mean that the sight of a flying robot overhead can signal an incoming strike and a sudden inability to call for help.

“Russia has been using a UAV-mounted cell phone jammer for a number of years,” said Samuel Bendett, research analyst at the Center for Naval Analyzes. The drones work in a pod with two or three vehicles and a ground station, which are combined as an “empty 3” system.

indoor phone jammer

“When these UAVs fly in teams, one acts as a signal and communication relay while another acts as a jammer,” said Bendett. “At this point in time, these Leer-3 systems have been around for about two years.”

What is changed is the range of the jammer. The Orlan-10 drones already have a range of 75 miles, which means that with the latest update to the jammer, the drone pod can interfere with signals up to 135 miles from where the drone was launched. TASS reports that the 60 mile range is a 3.5 fold increase in distance from the original range.

Additionally, Bendett said that there is a chance that this ability, or an earlier version of it, has already been seen in conflict.

“The Ukrainian armed forces claim to have discovered Leer-3 systems in eastern Ukraine, while there is potential evidence that Leer-3 has also been used in Syria,” Bendett said. “The Russian Armed Forces are constantly training with empty 3 UAVs while they practice the suppression, identification and eventual destruction of enemy forces through enemy signals and cellular communication. Indeed, this type of training is part of the official tactics, techniques, and procedures in electronic warfare and other forces in the Russian military. ”

Advances in electronic warfare are a key component in developing autonomous systems for the military. Right now, drones are waging an electronic war on cellular communications, but it’s not difficult to imagine the same lessons being applied with new technologies. In this scenario, it’s easy to imagine other vehicles turning into jamming machines on future battlefields … and maybe even present ones.

Analysis: Mini GPS jammer

If you spend enough time browsing eBay to break down interesting electronic gadgets, you’re bound to see suggestions for some questionable gadgets. This is how I recently became aware of these tiny GPS jammer that plug directly into an automotive 12v socket. Delivered to your doorstep for less than $ 10, it seemed like a perfect device to rip open in the name of science.

Now you may be wondering what legitimate uses such a device could have. As far as I know there aren’t any. The only reason you’d want to interfere with GPS signals in and around a vehicle is if you’re trying to get away with something that you shouldn’t be doing. Perhaps you’re driving a haunted company car and want a quick two hour nap in a parking lot, or you might want to disable the car’s built-in GPS that you stole just long enough for you to take it to the car store. You know how to do it.

However, we are not going to delve into the potentially nefarious reasons this device exists. Hackers have never been too picky about the devices they investigate and experiment with, and there is no reason why we should start now. Instead, let’s take this gray area hardware for a test drive and see what moves it.

While the GPS constellation’s average altitude of 20,200 km (12,550 miles) may not be quite as high as that of communications satellites in geosynchronous orbit, they are still quite a long way off. Given this incredible distance and the size of the antenna on most GPS equipped devices, it’s no wonder the received signal is very weak. So weak, in fact, that it is generally below the noise floor. Only with clever algorithms and a dash of wizardry can your phone turn that whisper from the stars into something that resembles useful information.

It is this fragility that makes this type of inexpensive jammer possible. It doesn’t take much to overwhelm the legitimate signal. Remember, a device like this does not attempt to mimic a GPS satellite, but simply emits loud enough nonsense that the real satellite can no longer be heard.

When the jammer is on, we can clearly see how the already meager signal is absolutely wiped out by the patterns sent by the device.

There is just no competition. The legitimate signal is tens of thousands of miles away, and this thing is screaming its head within easy reach. I haven’t tested the range of this device, mainly because I didn’t want it to be turned on for longer than necessary, but it is capable of doing the deed at least several meters.

Surveillance technology is more advanced than you think

Spurred on by the well-known terrorist attacks of September 11, 2001, modern surveillance has become an even more important method of protecting people from possible acts of terrorism or of eliminating acts of dissident. And there is no shortage of companies willing to provide the mechanism that can safely do these tasks.

Some of these tech companies have tools that allow governments to easily break into individuals’ phones and PCs, as well as powerful electronic eavesdropping devices that can be used to record all active Internet communications across the Wallstreet Journal. Those papers, more than 200 pages from 36 different organizations, were obtained by people who attended the secret security conference held last month.

Many of these technologies presented at the conference are related to monitoring large amounts of information. A company has selected tens of thousands of synchronous calls from landline and mobile networks or intercepted them en masse. The other describes how she helped the leading Chinese cellular operator monitor the Internet content and apps on the country’s cell phones in real time.

The annual retail market for surveillance tools has expanded from almost nothing in 2001 to a total of $ 35 billion this year, the Journal reported, citing information from TeleStrategies, the conference operator. Organizations operating in this sector argue that their goods are designed to catch criminals and are only made for sale to government and law enforcement agencies.

Still, some international companies are finding that their recent business activity has given them unwanted attention. Cisco Systems is feeling the nasty aftermath of the lawsuit filed earlier this year that accused the tech company of providing and supporting a huge surveillance system that enabled Chinese authorities to easily track and censor all internet activity of a spiritual group . Cisco officials denied all charges, claiming that Cisco sells the same legal equipment in China that it sells in other countries around the world in compliance with US government regulations and laws.

portable wifi jammer for sale

As you can see, if Cisco sells the same equipment around the world, US citizens may face the same risk as Chinese people. In fact we already are. So protect yourself by using wireless wifi jammer and make sure that nobody is watching you. And of course your comments are welcome here!

Raspberry Pi 4 HDMI is interfering with its own WiFi

Upgrading a popular line of products may sound like a good idea, but adding bigger / better / faster parts to an existing product can lead to unforeseen problems. For example, putting a more powerful motor in an existing vehicle platform seems to work at first until people report that the increased torque is bending the frame. In the Raspberry Pi world it seems that the “updated engine” in the Pi 4 causes the WiFi to stop working under certain circumstances.

Enrico Zini noticed this problem and tried to reproduce exactly what caused the WiFi to fail. After testing various Pi 4 cards, power supplies, operating system versions, and a host of other variables, the cause was isolated on the screen resolution. Apparently the WLAN fails with the setting 2560 × 1440 with HDMI. While you might think that a SoC might not be able to handle high resolution, WiFi, and everything else that tiny computer has to do all at once. However, the root cause seems a little more interesting than a simple problem with system resources.

Mike Walters checked for a radio frequency problem with a HackRF on a Twitter post on this issue. It turns out that at this screen resolution, the Pi 4 emits RF noise that is exactly in the range of WiFi channel 1. It appears that the Pi 4 is acting as a wifi jammer for itself.

This story is pretty new, so hopefully the Raspberry Pi Foundation is aware of the problem and is working on a fix. For now, however, it might be best to use a slightly lower resolution if you encounter this problem.

Are all wireless networks susceptible to interference?

There is a lot of buzz about enterprise access networks being “fully wireless” as the increased throughput and range of next-generation 802.11n WLANs become available in IEEE standard products.

One consideration for using unlicensed radio waves solely for corporate LAN access is the impact of interference on network availability. Jamming is a form of wireless denial-of-service attack in which a single device transmitting at a higher power than those nearby blocks the connection to lower-powered devices. If you put all of your broadcast eggs in one wifi basket, a malicious paper jam can bring your access network to its knees.

Fortunately, to date we haven’t heard much about deliberate, unintentional jamming attacks on any particular company or hot spot. But once businesses go wireless, I wonder if that raises serious security concerns.

Inadvertent interference is common in cell-based Wi-Fi network systems. It emits from bluetooth devices, microwave ovens, cordless phones, Wi-Fi access points in a neighboring office, and other competitors for unlicensed spectrum. You can use spectrum analyzers such as those from Cognio and its many resellers and OEMs to identify and locate such sources of interference. Basically, you then use Ankle Express to deactivate them.

gps wifi cell phone jammers

But what if criminals come into play? jammer device exist today primarily for legitimate testing purposes. If the jammer is within FCC Part 15 power limits – 1 watt plus 6 dBi antenna gain, or around 4 watts – a legitimate device can easily broadcast most Wi-Fi devices, which typically emit around 100 milliwatts of power Craig Mathias, Principal at Farpoint Group in Ashland, Mass.

“There are a number of jammers on the market that can completely shut down 802.11,” says Mathias. “You need some kind of radio that can pinpoint where the radiation source is coming from. If the jammer is illegal [broadcast at levels above FCC limits] it can be distant and difficult to fix.”

High quality drone jammers for military applications

Jammer-mart specializes in the production and sale of high quality signal jammers and offers a wide range of jammers for military applications.

Jammers for drones include portable models, desktop models, suitcases, briefcases and models for various purposes.

Other models include bomb jammers designed to protect vehicles from improvised explosive devices (IEDs), prison jammer to protect the area, remote jammers to remove remote controlled devices, and a range of Wi-Fi mobile devices and systems (GSM) jammers for addressing of radio and GSM signals.

desktop mobile phone blocker

Drones disrupt the remote control and GPS signals

Jammer-mart offers a special range of jammers with which the remote control (RC) of an unmanned drone / quadrocopter for aircraft (UAV) or its GPS signal (Global Positioning System) can be disrupted.

Most commercial 3km to 5km high-end UAV drones / quad copters only use 2.4GHz Wi-Fi and GPS L1. All other drones with 5.8 GHz, 433 MHz, 928 MHz can control a maximum length between 500 m and 1,000 m.

We offer devices with proven radio technology and guarantee reliable operation and stability.

Remote controlled jammers series

Jammer-mart is developing a special series of jammers designed to restrict RC signals from various devices including RC cars, boats and toys, as well as quadcopters, alarms and wireless sensors.

Jail jammer for military locations

Prison Jammers are intended for prisons and other large sensitive locations such as military or government buildings. They can also be used in military units, security and intelligence services, oil and gas storage facilities and fields, and in museums.

The jammers can be used to block occupant phone communication if necessary.

Portable briefcase jammers for RC bomb protection

The Portable Briefcase with Radio Controlled Improvised Explosive Device is a portable broadband jamming system that protects VIPs and citizens from radio controlled improvised explosions by deactivating radio signals to control exploders in dangerous areas.

Briefcase jammers emit radio frequency (RF) interference, creating an “RF protected zone” around the object (or a group of objects in that zone) that allows radio-frequency remote activation of bombs (activation of cells / mobiles, radios, and others various radio devices) in the vicinity with a sufficient anti-trap safety radius to save lives and avoid serious injuries.

Vehicle and briefcase jammers also guard police and government offices, security forces, dignitaries and VIPs, checkpoint and border crossings, roadblocks and embassies.

Jammers are available in different models depending on frequency and output power, but can also be customized to meet user requirements.

GPS tracking and location of jammers

The GPS signal jammer models are designed to cover GPS tapes and other tracking and positioning devices to provide an effective combat solution that goes undetected by GPS trackers and Wi-Fi Android tracking devices.

About wretched world

Jammer-mart focuses on the market needs and security trends and then develops drone jammers to meet the growing demands of the security market such as the rapidly growing UAV market.

We supply an extensive selection for every possible application.

Russia is blocking GPS systems with powerful F-22 raptors and F-35 jets in the Middle East

Among other things, Russia’s electronic warfare, including disruption, poses a major threat to civil aviation, police and peacetime medical operations.

Experts differentiate between jamming and spoofing. While interfering with the generation of electronic noise amounts to interfering with GPS services, spoofing, on the other hand, involves deceiving and manipulating a satellite navigation system to provide incorrect data.

In late June 2019, The Times of Israel reported that pilots flying in the Middle East, particularly Syria, have found since last spring that their GPS systems are in the wrong location or are no longer working at all.

According to data collected by American researchers, the signal that disrupted satellite navigation for planes flying through Israeli airspace (and allegedly continues to do so until now) came from the Russian airbase in Khmeimim in Syria.

The Khmeimim Air Force Base houses sophisticated Russian military hardware, including S-400 surface-to-air missile batteries, Pantsir-S1 anti-aircraft systems, and Su-57 stealth fighter aircraft

Russia is most likely trying to protect its forces in Syria, including from drone attacks, by disrupting and conducting active electronic warfare. According to The National Interest, Israeli sources are “increasingly convinced” that GPS failure of civilian flights in the region is “a side effect of Russian radio interference in Syria.”

In recent years, ships have also reported GPS malfunctions in the eastern Mediterranean, with Russia suspected of having implemented electronic traffic jams to protect its troops in Syria fighting for the Bashar al-Assad regime.

However, the disruption may well be the result of spoofing. Ships posting about GPS problems in the U.S. Coast Guard’s navigation center reported what appeared to be authentic satellite signals but failed to receive credible positional information, reflecting the spoofing events in Syria near the Russian air base.

Moscow is believed to be attempting to disrupt western aircraft, including the latest stealth F-22 and F-35 fighters, as well as armed drones that are regularly attempting to attack Russia’s Khmeimim base in Latakia, Syria .

From April 2019 the US Air Force deployed the F-22 and F-35 stealth fighters in Qatar and the United Arab Emirates, respectively. This was part of a wider buildup against the backdrop of the US-Iranian confrontation in the region.

Russia can also be seen in the GPS war on the European continent. “A GPS signal jammer was first detected in late October 2018 during a large-scale NATO trident junction exercise in Norway,” Defense News said.

drone jammer for wifi frequency

The Norwegian military secret service then stated that they had registered a source of interference from a Russian military base on the heavily fortified Kola Peninsula. The Finnish Military Intelligence Service also expressed that the analysis of the Norwegian partners reflected its own investigations and assessments.

The Norwegian government has condemned what it calls the Russian government’s continued “electronic harassment” of critical communications systems and networks. “The Norwegian government detests Russia’s electronic jamming and is intensifying cooperation with Nordic partners to improve the exchange of information on the Russian military’s signal blocking technologies and measures,” said Norwegian Defense Minister Bakke-Jensen.

The Norwegian Armed Forces are also investigating the use of new methods and technologies to protect against military communications disruptions and the interference of GPS systems by Russia. The US Air Force is currently planning to test interference-resistant GPS systems in Europe. This will be done with the aim of countering Russian electronic warfare.