携帯電話はほとんどどこにでもありますが、それは同時に私たちに便利ですが、私たちにも多くのトラブルをもたらします。 結局のところ、すべての携帯電話ユーザーがいつ話を止めるかを知っているわけではありません。 現時点では、静かな環境を保護するために携帯電話の妨害物を使用する必要があります。 例えば、教会、図書館、その他の場所で。

2019年11月20日

Signal jammer is effective in preventing cell phone leaks

Say no to cell phone leaks - cell phone signal jammer


However, is this mask really effective? The entire frequency range of the electromagnetic wave ranges from the smallest Hz to the largest one several hundred GHz, and the range is very large.Each segment can be used as a communication signal.But with the exception of a few devices very specialized, the usual protection devices are "The trick is not big enough" and "the five sounds are incomplete" A shield can block only a small part of the frequency band Communication tools can use bands unshielded frequencies to communicate.


Although the phone is used whenever wireless communication devices, but there is also slip the invisible line than the mobile base stations. The first step for a mobile phone to make a phone call or answer a phone call is to first establish a connection with a nearby mobile phone base station. If you are left-handed and right handed each a mobile phone, a mobile phone to call the right hand with his cell phones in the left hand, electromagnetic mobile phone waves are not transmitted directly from the left hand the right hand so simple, but will be a roundabout road passes a few hundred meters from the phone to the left hand The base station of the mobile phone, then a large circle to the right phone (except Bluetooth).


Due to previous fraud on communication equipment during previous college entrance exams in recent years, in order to completely eliminate the occurrence of such phenomena, the signal jammer has been used as a big move.


Cell Phone Jammer


So, what is the principle of the barrier used in the college entrance examination? In fact, which equates to time your phone to send and receive information, GPS jammer like a super horn super, the output of 'noise signal' too big for your phone can not hear, 'mouth' but also call jammers. To put it simply, the work of the shield is far from blocking the signal from the cell phone, but blocking the signal. Equivalent to the use of electromagnetic signals useful in a large number of undesirable signals.


This is why the signals in the examination room were disrupted, which seriously disrupted the call of mobile phone users around the examination room and the quality of the call became very bad. For the flowers of the homeland, everyone please support for a few days.


So increasing the number of jammers is an imminent thing and trying to keep all areas covered.


reference:


https://www.perfectjammer.com/install-signal-blockers-prisons.html


https://www.perfectjammer.com/new-gun-type-uav-blockers.html

  


Posted by shokoishida at 20:37 Comments(0)

2019年02月23日

Why are jammers popular?

Why does the U.S. government need jammers so badly?


Consideration has been given to using cell phone jammers inside of prison walls to render them ineffective. The practice of jamming cell phone signals is illegal in the United States. Exceptions to this law have been considered for prisons, though there is concern that a cell phone could be a guard's lifeline in a crisis, and other rescuers may need to use them for communication.


Some US federal and local prisons are pushes to use cell phone jamming technology to stop the illegal mobile phone use in prison. To help keep contraband from being smuggled into state correction facilities, the Tennessee Department of Corrections asked the Federal Communications Commission to lift its ban on cell phone-cell phone jammer for sale technologies in jails and prisons. South Carolina prison officials have been pushing the Federal Communications Commission for several years to allow cell phone signals at prisons to be jammed.


Basically, when it comes to students using their phones during the school day, a district survey found that 74 percent of teachers think the current policy — students can possess phones and use them during lunch or passing periods — isn't strong enough, while 61 percent of parents say they would insist on their kid having a phone on them even if the district banned cellphones.


The arrival of drones and their impact on the lives of the average person has certainly taught us a lesson about technological naivety. Proposals and the rapid approval of new legislation intended to control drones illustrates this perfectly. Drone jamming, a concept previously considered to be a bit like sci-fi has become an everyday reality. In the same way that national security regulations keep our airports and military installations safe, so does the new legislation governing drones.


That’s why the US needs “penetrating” 4G jammer, Bacon said: stealth aircraft that are harder – though hardly impossible – to target and which can slip into enemy airspace to conduct electronic warfare at shorter ranges. GPS denial is a becoming a huge issue for American military planners. Peer states, especially Russia, are already putting GPS spoofing and jamming tactics to work during various training events near their own borders. We have discussed this situation in great depth before, and I would suggest you read this article to understand just how deeply the loss of reliable global positioning system data can mean for the U.S. and its allies during a time of war, as well as what is being done to overcome such a monumental hurdle.


In the information age, mobile phones seem to have become a necessity for life, and nowadays it is not uncommon for students to bring mobile phones to school. Although small and medium-sized schools around the world are not allowed to carry mobile phones while they are in school, the phenomenon has repeatedly been banned. In recent days, a high school in the provincial capital has been forced to turn off the lights in the evening and turn on the "high-tech" -- mobile phone screening device. I didn't think that the kind act attracted some parents' complaints. One was that they were afraid that the screening instrument was not good for the students' health, and the other was that they would lose contact in the middle of the night. The school was forced to stop using mobile phone shielding.


As long as it is electronic products have radiation, as for the radiation shielding device, slightly larger than the cell phone, routers, but choose normal manufacturer's products, through the national multiple departments detection, conforms to the national radiation protection sign value, there is no impact on the human body. The radiation is less than 40 microwatts per square centimeter and is safe.


Gun drone jammer


  


Posted by shokoishida at 15:15 Comments(1)

2018年11月12日

Russia's jamming electronic weapons program

Electronic warfare has become a trend, and GPS signal jammer weapon is key


It is well known that Russia's military strength is leading in the world. In order to maintain that lead, Russia has invested a lot of capital in the field of electronic warfare. Of course, as one of Russia's rival, the United States is not far behind.


Militaries the world over regularly practice ‘electronic warfare’, which involves the jamming of everything from radio communications and radar through to satellite signals. But, as with all ‘live fire’ exercises, threat warnings are issued and exclusion spaces declared.


Silok is the latest in a long line of radio-frequency-portable jammer systems that the Russian military has deployed since the Cold War in order to block enemy communications, including the radio links that allow the operators to control drones — and drones to send back video and other intelligence data.


While the Russian army, and the Soviet army before it, long has operated R.F.-jammers, it wasn’t until October 2017 that the Kremlin stood up its first ground-based unit specializing in defeating enemy drones.


The Russians also deployed R.F.-jammers to Syria to protect Moscow’s installations in that country. The new Silok jammer joined the Russian force in Syria in August 2018.



The development of American wifi jammer weapons


US and Norwegian forces regularly use airfields in northern Norway and Finland. In this instance, the jamming was believed to have been coming out of Russian territory as it was engaged in its controversial Zapad 2017 military exercise.


Russia has developed jamming equipment that can distort GPS signals over a wide area. Its R330Zh jammer reportedly disrupted flights some 250km on the Norwegian side of the border with Russia. But its troops are also equipped with handheld GPS signal jammer for sale that can affect receivers out to an 80km radius.


But even with precision electronic warfare, jamming from one place for a long time is generally an invitation for enemy fire, so EW systems need to be mobile. (Even then friendly forces generally don’t hang out too close when enemy artillery is in range). That brings us to the TV part of EWTV, the Tactical Vehicle.


The Pentagon is keenly aware of the risk. The Defense Advanced Research Projects Agency's (DARPA) long-running Communications Under Extreme R.F. Spectrum Conditions initiative and similar programs aim to develop "signal detection and reasoning technology that allows radios to recognize interference and jamming, and adapt to maintain communications — even in the presence of severe and/or adaptive jamming," according to DARPA program manager Joseph Evans.


10 Bands Jammer


Reference:


https://www.yomodel.com/shokoishida


http://www.eliked.com/packs_moviles/341/EO-10-High-Power-Military-Cell-Phone-GPS-WiFi-Lojack-433315868MHz-Jammer

  


Posted by shokoishida at 21:00 Comments(0)

2018年10月31日

Poortable Jammers are everywhere

Portable jammer are getting more and more attention in the military field


Perfectjammer has announced the launch of DroneCannon RW, a counterdrone jammer which is designed for use on remote weapon stations.


It said during radio jamming, a loud noise is transmitted over stations so that listeners can’t hear the content. South Korean officials have previously said that North Korea used radio waves to wifi jammer systems, affecting planes and ships.


US department of Homeland Security (DHS) operates autonomous drones patrolling over the USA-Mexico border, which suffer jamming attacks by border smugglers, mainly the drug cartels," said Gai Mar-Chaim, Senior Partner at the management consulting firm POC. "The DHS gives high priority for lightweight anti-jamming solutions for this challenge, and GPSdome is the only commercially available solution that weighs less than 150 gram and consumes power less than 0.75 Watt.


The BBC broadcasts are carried on shortwave frequencies from Taiwan and Uzbekistan, and on medium wave from Mongolia, 38 North reported. It said it wasn’t possible to determine if the medium wave frequency was also targeted by jamming.


Also unique is that North Korea’s jamming is high power, sustained and from fixed locations – so it’s easy to identify where it’s coming from and the impacts. How much more difficult is it when signal jammer for sale are low power and are in a vehicle that quickly passes by? It took many months, and a concerted effort by several agencies, to locate the signal intermittently jamming an aircraft landing system at the Newark (EWR) airport in the United States. And who is to say if a dropped cell call or a glitch in an IT network is due to a jammer passing by or something else?



The use of wifi jammer in multiple domains


Jamming GPS and other satellite navigation systems is the classic asymmetric threat. It’s inexpensive, equipment is readily available and easy to use, and its effects are scalable from targeted local impacts to wide area strategic disruptions. At the same time it is very, very difficult to detect, especially when operated intermittently and/or from a moving platform, and its impacts are often attributed to other causes.


Prison cell phone 5G jammer have become a necessary addition to the arsenal of tools1 required for the safekeeping of inmates. Cell phones are becoming smaller every day, making them easier for inmates smuggle into facilities. This creates an even more difficult job for the already burdened correctional worker, however a cell phone jammer is the answer to restricting the inmates from using the cell phones for potentially dangerous activities. Cell phone jammer use can also force inmates to use prison approved / monitored phone lines.


Such tests could lead to the broader use of technologies like jamming inside prisons to immobilize inmate phones, which officials across the country have described as their No. 1 security threat.


LOJACK Blocker

  
タグ :cell phone


Posted by shokoishida at 18:55 Comments(0)