タグ別アーカイブ: phone

Advantages of cell phone signal jammer

Cell phone jammers prevent and disable any mobile phone communication from entering specific areas of a building or open space to…

• Prevent industrial espionage using mobile devices as eavesdropping devices or for taking photos (cameras)
• Counter terrorist threats, such as remotely detonating bombs in high-risk areas
• Eliminate public nuisance in places such as cinemas, restaurants and churches

How cell phone blockers work

Cell phones are two-way radios that communicate via cell towers. cell phone jammer work by sending a strong signal on the same frequency used by mobile devices to effectively interfere with communication between the device and the cell tower. The result is that the mobile device does not work and “No network” is displayed.

Physical description of cellular jammer

It comes in different sizes and shapes. Some are pocket sized, some are bigger. Some masquerade as plain phones or briefcases.

Precautions before buying a mobile phone jammer:

• What is the effective interference range (10-50 meters above)

Which cellular systems can it block (cdma in North America, gsm, tdma, 4G, 3G amplifiers, pcs, dcs or all?)

• How many cellular systems can it block simultaneously (cdma, etc…) (Low-end models can only block one type at a time, while more complex models block multiple systems at once)

Indoor 3G cell phone signal blocker

As we all know, for a certain purpose, in order to achieve the ideal state, now mobile phone signal blockers are used to help people achieve the purpose, and in the various types of mobile phone signal blockers sold on the market to buy one that can meet your requirements is the best choice. For those who are looking for a signal blocker that can cut off 3G cell phone signals and also has adjustable features, they can take a look at this “4 antenna Adjustable Cell Phone Signal” remote control jammer that will be introduced here soon.

As we all know, in different situations people may need to cut off the signal of different frequency bands, if this is the case, gain one with adjustable function may be a good choice, because it allows you to choose the interference frequency band you want, and since this 3G mobile phone signal blocker design has adjustable buttons, so you can easily reach the target. In addition, since this is a high-power 3G phone jammer and is designed with 4 antennas, it can also easily cut off 2G 3G phone signals at the same time. This adjustable 3G mobile phone signal blocker features a high-power design that interferes up to 40 meters depending on the signal strength in a given area.

More importantly, the 3G mobile phone signal blocker is also designed with a good cooling fan system, so that the 3G mobile phone signal blocker always maintains a good working condition, without producing high temperature harmful to the 3G mobile phone signal blocker itself. Therefore, one aspect that people will also consider is the application field of this high-power 3G mobile phone signal blocker, if so, you do not have to worry about this high-power 3G mobile phone signal blocker, you can easily use it in churches, churches and other places, theaters, concert halls, classrooms, libraries, banks, museums and other places do not allow loud talk, But some people can’t resist talking on their mobile phones, and other places where the use of mobile phones is not allowed, this 3G mobile phone signal blocker can also be used.

4G cell phone signal blocker

The full name of this handheld signal blocker is “6 antenna Handheld 3G 4G full frequency mobile Jammer”, this is a 3G 4G full frequency mobile jammer, with 6 antennas, in addition to cutting off 3G, 4G(LTE) and 4G(Wimax), the jammer can also block normal 2G mobile signal at the same time. Such as CDMA, GSM, DCS and PCS mobile phone signals. And with a portable design, it is lightweight and can use a rechargeable battery as a power source, so this portable 3G 4G signal jammer is easy to remove when needed.

So while this is a handheld 3G 4G phone jammer, it’s also designed with a high-quality cooling system so you can use it without worrying about the temperature. In addition, this handheld 4G signal blocker has also been designed with an on-board charger, so that it can easily be used in the car, so for people who need to use this handheld signal blocker in the car, just choose this one. . Therefore, this handheld 4G mobile phone blocker is also designed with selectable buttons so that you can decide the interference frequency band according to the actual situation you are in.

Cell phone jammers in the country’s prisons are not enough to stop criminals inside from sending messages to others outside the prison.

That’s the view of senior prison officials, and while network jammers (which they say can be used) are used to block cell phone signals in prisons, other interception techniques are needed for the system to be effective.

“Cellphone jammers are being used. However, to be truly effective they must be used in conjunction with other technologies such as WiFi jammers. We can see this happening in other jurisdictions. But it still needs to be used correctly here.

“So some prisoners have mobile phones and tablets but are unable to make calls. However, you can use your phone’s data allowance or if you have access to a hotspot device or WiFi box, you can also make calls through social media apps. This includes WhatsApp , Facebook and Instagram etc. So the problem of communicating with the outside world remains. Communication is still a work in progress.

“In other jurisdictions, you’ll see cell phone jammers used in conjunction with other interception devices to determine what frequencies those devices are using and then target those specific frequencies.” If it doesn’t, it’s almost like a dreidel in the mud, “a senior prison Service source explained yesterday.

Acting Commissioner of Prisons Deopersad Ramoutar did not directly answer questions put to him recently about the function of mobile phone jammer, saying it was confidential information and not within the purview of the Prison Service.

On July 5, several contraband items were found and seized at Aruka Maximum Security Prison, including a Wi-Fi box.

The officer received the information and went to the cell block B of the prison.

Police conducted a search and found and seized a bag containing 53 grams of cannabis, mobile phones and Wi-Fi boxes in a cell near the toilet.

In another cell, police found and seized a bag containing 104 packs of cigarettes and marijuana weighing a total of 241 grams.

Two prisoners said they were in possession of the seized items.

On Friday, prison officials expressed concern about the use of drones over prisons, with one senior officer saying it was a “ticking time bomb” that needed to be addressed.

“All it takes is a drone, we can’t catch it, it could drop knives or even guns and we could have a very serious situation.” Everything we’ve seized so far has been contraband – cigarettes, marijuana, cell phones, chargers, etc. But if we miss even one, it could be a very dangerous situation for the prison and for the country.”

Ramutar said the prison service had noticed an increase in the number of drones being used around prisons, especially in the last year, and had taken action.

He said that with the help of various branches of the state security services, most of the items dropped from the prison walls were confiscated before they reached the prisoners.