Category: Tag Positive

There is an old saying: Every family has problems, especially between parents and children. They never seem to be able to live peacefully, and communication barriers are becoming increasingly apparent. There are many reasons. Especially with the advent of mobile phones, parent-child communication has become increasingly unpleasant and difficult. When they were young, they preferred to play games on their smartphones rather than listen to your suggestions. This happens not only in your home, but also in school. Mobile phone radiation can seriously affect children’s health, including vision. Therefore, many homes have installed a WiFi jammer to control the time children use the phone, which is very positive for families

The un-fictionalization of cell phone jammers

Ten years after the then fictional invention (in our column in Byte magazine) of the A Brief Cell Phone Jammer, the New York Times reported on November 4, 2007 that the device is now pretty real? and that it’s used by people who like to use it: there seems to be a lot of stuff out there.

Andrew reached into his shirt pocket and pressed a button on a black device the size of a cigarette pack. It sent a strong radio signal that interrupted the imposter cell phone transmission? and everyone else within a 30 foot radius.

She talked into her cell phone for about 30 seconds before realizing that no one on the other end was listening? he said. His reaction when he first discovered he could wield such power? Oh holy Moly! Liberation.?

As cell phone usage has skyrocketed, making it difficult to avoid half a conversation in public places, a small but growing group of rebels is turning to a blunt countermeasure: the cell phone jammer, which knocks out nearby cell phones.

armband signal blocker

Here is our description written in 1997. The device was called “apoptosis”:

The word “apoptosis” comes from biology: It means “programmed cell death”. What is so wonderful about apoptosis? Just like that: it interrupts any cell phone call within earshot of you.

Apoptosis has an effective range of 15 feet – wide enough to get the job done, narrow enough not to disrupt innocent neighbors’ phone lines.

Apoptosis is small and inconspicuous. It fits on a keychain. It looks like a worry pearl. If someone nearby starts to snap, snap, snap a cell phone, you just assume an innocent expression, squeeze your little “worry pearl” and see immediately that your wish is coming true: the idiot’s cell phone connection dies.

Right after the column came out, readers bombarded us with questions about where to buy it? oh, then-fictional? Product. The first non-fictional cell phone jamming products (as far as we know) came out a year later, in 1998, from a company in Japan and another from a company in Israel. The Times article mentions a company, https://www.jammer-shop.com/de/, that now sells a variety of such devices.

Men’s basketball game reporters restricted due to negative closing venue signal shielding

The 12th National Games enters the final day, and the competition will end today. The closing ceremony of the current National Games will also be held at 4 pm today. According to the notice received by the National Games Propaganda Department last night, the men’s basketball finals interview reporters will implement a quota allocation system, and the closing ceremony will use cell phone signal jammer for communication control.

Powerful signal jammer device

Not long after the men’s basketball semi-finals ended on the evening of the 11th, around 22:00, many reporters covering the National Games received a text message. This official notice from the National Games Propaganda Department stated: Adopt reporters to implement a quota allocation system” and attach the phone number of the forecast name.

The phone of the media director of the Tiexi Gymnasium in Shenyang Division instantly became a “hotline”, and the incoming calls were almost unbroken. More than 50 calls came in within an hour. And these reporters have only one purpose, which is to win interviews for tomorrow’s men’s basketball final.

According to the person in charge, according to the notice issued by the superior, there will be only 20 photojournalists in the men’s basketball final at 13:00 tomorrow, and the relevant photo vest must be obtained to enter the infield. At this time, it is almost impossible for reporters who call to make an appointment to get another photography spot. They can only “register first, and then see the situation.” Regardless of whether it is from the central government, the Liaoning and Guangdong sides in the finals, other provinces, cities, and even Hong Kong, Macao and Taiwan reporters, they can basically get the quota of journalists.

For such a difficult situation, the person in charge is also very embarrassed. “That is 20 places. Xinhua News Agency and CCTV will account for one half. Other mainstream media such as Liaoning and Guangdong will also Give priority to it, so I can only ask media reporters to understand.”

Immediately afterwards, the National Games Propaganda Office issued a notice on the closing ceremony interview. The original text read: “On September 12, during the National Games closing ceremony, communication control will be implemented on the closing ceremony venues, and mobile phone calls cannot be made in the venues. , You can’t use your mobile phone to access the Internet. Please understand that this will cause inconvenience to your work.”

When the reporter called the relevant person in charge of the Propaganda Office, the news was confirmed. As for the consideration of “communication control”, the other party’s initial response was “just received a notice from the superior, and it is not clear.” But then, the Propaganda Office replied: “The main reason for communication control is to worry about malicious hype about the National Games during the closing ceremony, hoping to guide positive reports on the National Games.”

The protection of business secrets in conference rooms still requires the application of mobile phone signal jammers

Encryption protection of trade secrets still requires mobile phone jammer

Business is always a risk, and everything about how you make a decision depends on you, or whether you are up or down. The success of a business depends not only on decision-making, but also on profitable transactions. In this case, trade secrets are one of the critical moments. After all, if competitors are aware of pending transactions that may harm them, they will do everything they can to prevent this from happening. Protecting your confidential information and preventing unnecessary ears can only block your phone. Any company can afford such equipment because it can save more.

Due to its light weight and portability, the jammer can provide excellent protection for any spyware to protect your information and prevent leakage.

Before trading or revoking new products, presentations, and other secret developments, any large company should protect itself and its technology or capital. Better equipment-can suppress any GSM signal and interfere with the work of the recorder, can be purchased at a fairly affordable price.

super power signal jammers

Basically, the device is represented by a portable cell phone signal jammer , and they can’t even guess that this will make the defense more effective and help deter saboteurs whose purpose is company confidential information.

The easy way to protect yourself with GSM jammers is to buy common portable mobile phone jammers in our store. The device can mute radio signals at a sufficiently large distance. They are often used in public places, conference rooms, and leadership offices.

GSM jammer can be portable and fixed, can eliminate cellular communication channel, wireless camera and microphone communication channel. The scope of such equipment depends on many factors:

These devices only interfere with specified frequencies, so any other devices within their operating range will work as usual. For example, if the GSM network is muted, then Wi-Fi will work. The jammer has no effect on any other equipment or personnel.

The most popular is the portable jammer, which has gained many admirers due to its compactness and powerful functions. The jammer is easy to bag, can mute the signal to a radius of up to 10 meters, and has a powerful built-in battery to keep the device running for 5 hours.

The device is used to protect personal information in cars, and it can also be large rooms, offices and jamming pinhole cameras, which are common eavesdropping methods.

Function of jammer

The jammer works unknowingly, so those who wish to record something on a tape recorder will be pleasantly surprised when they hear the material. The jammer completely blocks all signals and the phone can no longer be used.

The radius of the device: about 10 meters, their features are not lower than the fixed models, but in some ways they win them. In addition, the jammer has a built-in battery, which allows you to use the jammer without a nearby 220V fixed network.

Jammer invalidates ultra-precision weapons

Arexis jammer has the ability to filter and thus protect the approach and departure of entire strike formations from low frequency radars through the intelligent use of DRFM jamming techniques, such as smart noise, false targets coherent and various saturation techniques.

But the service still kept MAPS in the background. Its goal was to develop an open architecture – the MAF (Modular APS Framework) – which could be used on any current or future armored vehicle to plug in and use the best radars, cheap gps jammers, and death shooters from different vendors. This way, the military can easily update vehicle protection with new technologies available from all vendors.

The GPS jammer is a little more difficult when the trajectory is made several kilometers away. American Missiles Ballistic missiles usually have their destination in mind long before they are close to the target. They also have a nifty method of calculating distance to target that is not dependent on GPS as they get closer. Even so, GPS disturbances are very difficult on a large scale. But it’s not too difficult to make minor changes, just enough to render super-precise weapons ineffective. When you know someone is going to be operating in a very specific area, like the ships we broadcast around the world. Or, say, one of our stealth drones that we kept flying in the same reconnaissance mission over and over again (looking at Iran). It’s easier to fuck. Because you know pretty much exactly where they operate, so you can focus on that specific area. It’s easy to fuck with practice ops.

anti-tracking gps blocker

Thus, weak radar cross sections and radar absorbing materials will be a necessary, but not sufficient, characteristic of sixth generation fighters. Some theorists argue that advanced sensing technology can eventually render stealth cells obsolete – and they can’t be upgraded as easily as avionics and weapons. Therefore, jamming, electronic warfare, and anti-infrared defenses will also gain importance.

The fusion of sensors and optional management, however, means that the sixth generation jets rely heavily on data links and networks that could be disrupted by jamming or even invaded by hackers. Ground logistics networks, such as the F-35’s ALIS system, promise to dramatically improve efficiency, but even expose aircraft on the ground to a possible cyber attack.

The B-52 weapons developers added that a second element, slated for completion by 2022, would incorporate more modern or advanced weapons, such as the remote air-to-surface missile, or the JASSM, the JASSM Extended Range (ER) and a technology called Miniature Cast Lure, or MALD. A variant of the MALD-J “jammer”, which will also be integrated into the B-52, can also be used to block enemy radar technologies.

Are bomb jammers dangerous or not?

In recent days, the “handheld gps jammer” topic on the car of the magistrate “Di Matteo” has returned to fashion. The topic deserves further study with experts in the sector, not with politicians ready to speak out to gain some consensus here and there.

We premise that, EVERY jammer device is NOT good for the human body, the greater the power and correspondingly more it will harm the health more. Erroneously from what was declared by Undersecretary of Defense Gioacchino Alfano: “The types of jammers (called jammers) used by the Italian military in operational theaters (including Afghanistan) are of medium and small capacity”. And again: “the systems do not harm the health of people (operators and strangers), thanks to the limited power”, is an inaccuracy resulting from lack of competence, as well as ignorance.

Camouflage handheld phone jammer

The “bomb jammers”, the real ones, not the imaginary ones, MUST necessarily have a power output such as to be able to neutralize any radio transmission within the range of action set as safety; generally speaking of 100-1,000 meters. To be able to disturb such a large area, it is necessary to have an output power ranging from 25-200W per channel; that added to all the necessary frequency cuts, you can easily get a device of 1.000W of power! Installing a device with less power means making it useless.

The military who use the “military jammer“, as indeed the various American presidents, visiting foreign lands, install them on separate special vehicles. In a nutshell, if you want to give “Di Matteo” a Bomb jammer, you should first think about providing a new car specifically for installing the device.

This is not only because continuous exposure to these waves hurts; but also because the Bomb Jammers are devices of a certain size which also require a separate power supply.

We were stunned to read these statements from an undersecretary of defense, we are surprised by the lack of competence and superficiality with which this topic was addressed.

How to inhibit the signal of a mobile phone?

The technology to inhibit a mobile phone exists and, if one has the soul of a saboteur, it can be purchased on the Internet for a few tens of dollars in the market. A frequency jammer consists of a small device that emits an electromagnetic wave that cancels the frequency of the mobile phone in an area of tens of meters. Their use is usually restricted by law since they are used by state forces for protection work or by organized gangs of thieves in the theft of vehicles or houses.

There is also the possibility of acquiring the technology for the opposite. A frequency inhibitor detector allows detecting a burglary attempt when intruders want to disable an alarm in a home for example. It is a service that alarm companies market, reaching the contradiction that they sell it as an additional service to cover a vulnerability in their own protection systems.

newest hidden mini cell phone interference

The mobile phone jammer not only work for mobile telephony but can also cancel the WiFi signal, GPS, radio, road radars, etc. But not all electromagnetic signals are equally easy to inhibit. Communications that use several radio transmission channels at the same time are more robust to attacks.

The inhibition of electromagnetic signals is very close to listening or spying on communications, reaching its maximum expression with the so-called ECHELON network that brings together English-speaking countries in an immense global communications listening network. It was conceived in times of the cold war and continues to be used to fight terrorism and industrial espionage, causing suspicion in civil society for its lack of legality and transparency.

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.”

TDOC issues calls for cellular phone “jamming” technology

NASHVILLE, TN (WSMV) – The Tennessee Justice Department renewed calls for action against smuggled phones.

According to a press release, Commissioner Tony Parker’s call for action comes after a report by the National Administration for Telecommunications and Information (NTIA). The report reports on the effectiveness of micro-jamming technology in blocking illegal cell phone signals in correctional facilities.

The report details the results of a Department of Justice / Federal Prison pilot test for micro-jamming technology at a state prison in South Carolina.

“This pilot program is a clear example of the jamming technology available, tested in a real corrective environment, and providing results that would disable illegal cell phones in Tennessee prisons without interfering with legal communication devices outside the target area.” Parker said in a statement.

Illegal cell phones in prisons have been used by drug smuggling networks to facilitate attacks and escape attempts and other illegal activities. In 2005, a contraband cell phone helped an inmate escape, eventually leading to the murder of Tennessee law enforcement officer Wayne “Cotton” Morgan.

4g cell phone jammer

The correction industry has repeatedly requested permission to use “jammer” technology to disable cell phones in prisons. Last year Senator Ken Yager (R-Kingston) and Representative William Lamberth (R-Portland) in the Tennessee General Assembly sponsored a resolution calling on the Federal Communications Commission to support the use of jamming technology in Tennessee prisons.

Commissioner Parker also said in a statement:

“Without exception, we” kicked “this can for a variety of reasons,” said Parker. The only solution to fixes has been managed access systems, which have proven time and again to be unreliable and very expensive. Other technologies, such as wands and cell phone detectors, pose many challenges in correctional environments. Parker says it is time to move forward with micro-jamming technology. All other technologies designed to help prisons eradicate the threats posed by illegal cell phones have failed, and it is time to put public safety first. “

South Korea accused North Korea of jamming GPS signals

South Korean authorities said North Korea is using so-called radio jammer to suppress GPS navigation systems in border areas.

According to the authorities, it started about a month ago in several places at once along the border, but stopped last Thursday.

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This reportedly led to disruptions in the navigation systems of 110 ships and aircraft, as well as to interruptions in mobile telephony.

A spokesman for the South Korean ministry for the unification of the two countries called these actions by Pyongyang a provocation, Agence France-Presse reports.

South Korean media report that Seoul has accused its northern neighbor of jamming GPS signals for at least the fourth time since 2010.

At the same time, it is reported that, most likely, the equipment for signal suppression was supplied to the DPRK from Russia.

On Friday, the South Korean military reported that the DPRK had once again launched a ballistic missile at sea, despite international sanctions and criticism from world powers.

Last week, North Korea announced an artillery exercise simulating an attack on the official residence of the South Korean president.