On-board frequency jammer: used for fleet safety and safe travel

How many on-board frequency jammers are needed for fleet safety? This question plagues those who are responsible for transporting their fleet from one place to another. In many countries, the threat of RCIED weapons (also called roadside bombs) is high. frequency jammer is a solution to the threat of roadside bombs; but some knowledge about RCIED failure is required.

Portable frequency jammer sale cheap

Since the late 1970s, we have had experience in countering remote-controlled weapons and introduced a series of bomb attacks. Our current bomb jammer series can withstand the current threat of radio-activated weapons. We install IED jammers in many countries.

At home, we can explain the working principle of our fleet protection solution. Our professional RF technical team members can outline the defensive capabilities of small, medium and large vehicles in the fleet. These people use frequency interference series IED jammers to prevent radio detonators from receiving their commanded knock signals.

What does the security assessment involve? Those who seek our advice either come to our office for consultation, our factory for demonstration, or bring a head of RF technical team to the country to seek electronic warfare defense technology in order to conduct an on-site review of the area. There, we can explain what is involved during RF jamming operations in a fleet scenario, the advantages of our technology, and the limitations of RF interoperability in other radio communication telemetry.

Our extensive knowledge of the subject of RF interference is helpful for those who have little understanding of what is involved in fleet protection operations. We can explain in basic terms how our systems work, how they work, they work well, and what happens when RF interference starts.

A practical telephone jammer can bring you many benefits

A good cell phone jammer can take you away from the troubles caused by cell phone signals, and can bring you peace and tranquility. If you don’t know which jammer you need, please visit Greatjammer.com, which is the website of a professional phone jammer supplier. There are many mobile phone jammers on Greatjammer.com, you can definitely find a mobile phone that suits your needs. Today, we will introduce you to a special jammer phone, which is very popular among our customers.

22 Antennas cell phone blocker

This is a powerful GPS/WiFi jammer for mobile phones with 8 antennas CDMA LOJACK GSM 3G 4G, model EO06301FR. The cell phone jammer device is designed with 6 antennas, which can cut off CDMA/GSM 850-960 MHz, DCS/PCS 1805-1990 MHz, 3G 2110-2170 MHz, GPS 1570-1580 MHz, 4G 2345-2400 MHz or 2620-2690MHZ Signal and LOJACK 167MHZ -175MHZ. It combines mobile phone GSM 3G 4G jammer, GPS jammer, WiFi jammer and LOJACK jammer, you can call it a full-featured jammer. The power consumption is 3W, the interference distance of this jammer can reach up to 20 meters, and the desktop design can work around the clock. In addition, the designer also considered the application country/region, so the new design Jammer can be used worldwide. On the one hand, it can be used in conference halls, auditoriums, courts, libraries, examination rooms, schools, cinemas, theaters, museums, hospitals and other places. On the other hand, it can also be used in places where refueling is prohibited, such as gas stations, security agencies, military units, border and drug police, customs, etc.

How can the villa area interfere with the mobile phone signal to prevent theft?

1. The signal of the villa itself is poor, it is far from the signal tower, and the mobile phone cannot receive the signal in the weak signal area.
2. The thick structure of the wall in the villa area blocks the signal.
3. The signal is bad due to interference.

Since the mobile phone receives signals through the propagation of electromagnetic waves, the base station establishes a connection with the mobile phone by transmitting electric waves, so as to achieve the purpose of voice calls. Therefore, the cell phone jammer of electromagnetic waves will have an adverse effect on mobile phones.

network wifi jammer Buy

It is normal for the mobile phone to display 4G signal and make a call to 3G or 2G signal! It is not caused by cell phone failure or base station failure. The following explains why this phenomenon occurs:
1. 4G has only one data channel (commonly called the Internet channel); 2G ​​and 3G have two channels, data channel and voice channel. So 2G and 3G can surf the Internet and make calls, while 4G can only surf the Internet because it only has a data channel.

2. In the early days of 4G, in order to satisfy the requirement that the mobile phone can make calls when using the 4G network, a solution called CSFB (Circuit Domain Fallback) was developed. Automatically fall back from 4G network to 2G or 3G network before starting to make calls. But this technology has a disadvantage, that is, you cannot access the Internet when making a call, so it is inconvenient for some business users.

3. Now that 4G technology has matured, in order to satisfy mobile phone users with a better experience, VoLTE (High Definition Voice Call) has been developed, which is a technology that can use the 4G network to make calls while also being able to access the Internet. The mobile phone uses the data channel of the 4G network to make calls and surf the Internet, and the call quality is clearer than that of 2G and 3G.

4. Dropping due to handover failure. Network operators use base stations to transmit wireless signals to serve users. The range of base stations is limited. Therefore, there may be many base stations in an area. The combination of all base stations is a network system. Each base station has its own range. If this range is exceeded, the mobile phone must replace the base station to keep the mobile phone in the network at all times.

The prison service has requested the installation of a signal jammer

Due to concerns about the ineffective jammers installed in the Rajasthan Central Prison and the use of cell phones by inmates, the State Prison Service asked the Home Office to transfer the total income of the three prisons from ‘worth Rs 2012 for best results.

Not only is the government struggling to restrict phone use, prison security is also affected. The High Court also takes these matters seriously. The prison official added in a letter to the government: “In order to prevent the prisoners from using the telephone and to better interfere, we ask you to approve the transfer of these 57 jammers to the two central prisons of Bikaner and Bharatpur. And “Ajmer”.

The prison department has requested a budget of Rs 7,200,100 for the transfer of the jammer, Rs. 1.12 million for the new tower, and Rs. 188 crore for the annual maintenance of the equipment.

As we all know, mobile phone signal jammers are very common. People will choose to buy mobile phone signal jammers to maintain their privacy and protect their independent space. Where will the jammers be used?

armband mobile gps jamming

Cell phone jammer is mainly used in various places where cell phone use is prohibited, such as various inspection rooms, schools, gas stations, churches, courts, libraries, conference centers, theaters, hospitals , governments, finances, prisons, public security and military might.

It is understandable that the WiFi cell phone signal jammers in the market can limit cell phone signals that are 500 meters from the transmitting station and have a radius of> 20 meters. The shielding radius is adjustable, it only protects the cellphone signal without affecting other electronic devices. Save energy, the power is 20W-480w.

The mobile phone is in a certain frequency range when it is operating. The mobile phone and the base station are connected by radio waves, and the data and sound transmission is supplemented by a certain baud rate and modulation method. Taking this communication principle into account, the mobile phone jammer will sweep the frequency from the low to the top of the front channel at a certain speed during the working process. The mobile phone seems to search the network, there is no signal, no service system and other phenomena.
The signal jammer is very convenient and practical, you don’t have to worry about whether it will be difficult to use.

There are no jammers in the prison and criminals use cell phones to blackmail

Taking advantage of the lack of a jammer, the prisoners at Mandoli appear to be doing free blackmail, filing complaints, making videos and sharing them with contacts in the glory of the unwavering 4G.

Mandoli Prison in Delhi (which has housed more than 3,000 inmates) operates without interference from mobile phone signals, as the prison administration is still waiting for 4G interference. Administrators at Mandoli Prison (opened to prisoners in 2016 to ease congestion at Tihar Prison in Delhi) confirmed that they had not installed a single jammer.

The device is used to block the cell phone signal, even if the prisoner manages to smuggle the cell phone in, it will also prevent the prisoner from using the phone in the prison.

Inmates are prohibited from carrying or using cell phones in Indian prisons.
Taking advantage of the absence of distractors, the prisoners of Mandori appear to do free extortion, file complaints, make videos, and share them with contacts in the glory of unwavering 4G.

In the past two months, Delhi police have claimed to have destroyed two extortionists led by prisoners at the Mandoli prison complex.
On Thursday last week, three prisoners were reportedly arrested (in this case formally arrested from inside the prison) and demanded 50,000 rupees for a man from Gita settlement.

Two days earlier, the city police task force (counterterrorism force) claimed to have arrested two men who had been sentenced to prison in Mandoli and killed two men, thus avoiding the murder. The police then said they intercepted the phone call from Chandban (aka Amman Yadav) who lived in Mandoli prison to his accomplices Barkishan and Mohamed Atik to eliminate the two who had not paid him protection money. people.

hidden cell jammers

A senior Home Office official said the cell phone jammer was only recently approved by the government. “We have moved for their installation and preliminary work is underway. It takes time to get permission to use jammers and install devices with the latest technology. But once installed, these devices will be the best. and will return all phones. It becomes unnecessary in prison. ”

A fortnight ago, a video of a gang leader in Uttar Pradesh showed the man recording a video on his cell phone while cooking in a Mandori prison cell, which has become popular on the media. social networks.

Prison officials said that although phone jammers may be installed in the new prison, the prison director has asked them to carry out strict inspections on a daily basis.

“Senior officials have ordered us to carry out strict security checks and warned us that we should take action if the cell phone is smuggled inside.” In the case of a small number of prisoners using cell phones, an investigative procedure has been ordered. We were warned that we would take action. Act strictly so that this does not happen in the future. “

I heard that some devices can prevent eavesdropping and this is true

There are equipment to prevent eavesdropping

More precisely, this is a technique called “scrambling”, namely jammers and jammers. With the popularity of mobile phones, this interference has become popular among the public.

Interference is a device that interferes with radio waves used in communication devices such as mobile phones. When this kind of interference occurs, it interferes with radio waves emitted by mobile phones at a certain distance from the device.

Places that are susceptible to interference include concert halls, movie theaters and hospitals where the use of mobile phones is restricted.

Recently, signal jammer has been installed around bank ATM machines, which are often used to prevent transfer fraud. Many people may be familiar with this news.

3g 4g cell signal jammer - how to block cell phone signal in my house

Moreover, this interference is an effective preventive measure to prevent the use of radio waves for eavesdropping.

Interference can also prevent eavesdropping

You can use scrambling to block listening. Several scramblers are commercially available and can be purchased by the public.

Jammers can be divided into two types.

Types of blocking/blocking radio waves

Types of hard to hear

There are two types of phone scramblers: one that blocks radio waves and causes interference, and one that makes speech difficult to understand. You can use any of them to stop eavesdropping.

You can use a single encryption machine the same size as the apartment room to protect your privacy, so as not to be eavesdropped. Therefore, it can be expected to be an inexpensive method to prevent eavesdropping.

However, this method of preventing interference requires some precautions to be kept in mind.

Notes on using interference

Cannot completely prevent interception

There are two types of scramblers, but neither can completely interfere with listening.

The performance of 3G/4G mobile phone jammers that the general public can buy is very limited, and the type of blocking/blocking radio waves can interfere with radio waves up to 2.4Ghz, but cannot block radio waves beyond this range.

Also, the type of sound that is hard to hear does not mean that you can mute it by completely muting your voice, as the name implies.

You may need a license to use the scrambled device

Some models send mobile phone interference signals. This powerful interference radio can only be used with the permission of a third-level professional terrestrial radio technician.

If used by an undocumented person with interference model qualifications, a violation of the Radio Law will result in severe penalties.

Even if you block the interception of spies, it will interfere with the communication of the phone, so it is difficult to hear or hear the communication with the phone. There is a danger of touching people.

You will not be caught in commercial facilities or public transportation

Blocking commercial facilities or public transportation violates the Radio Law.

Even if it is unethical to use a mobile phone on a bus or train, do not bring the jammer into the car, but only use it as a jam avoidance device.

In order to prevent eavesdropping, there are plans to install interference in the home or office, but there are restrictions where interference can be installed and where interference can be used.

Jammer-mart’s mobile phone signal jammer is recognized by consumers

Many friends who use mobile phones have this kind of distress, that is, the signal of the mobile phone often has problems. Especially friends whose home is in the country, can’t chat online all day long. But after some friends used Saiyue Communication’s cell phone jammer, this problem was completely solved.

mobile phone jammer GSM

Whether it is a branded mobile phone or a copycat mobile phone, they often encounter poor signal problems. The cell phone signal booster of Saiyue Communication was born under this situation. This is a cross-age product, so it is very popular in sales. Whether online or in physical stores, many consumers are buying.

But at the same time, there are also many companies that seize the tricks and follow the trend, all of which are producing mobile phone signal amplifiers. This is because with the increase in mobile phone users, mobile phone signals have received serious interference. Because Saiyue Communication itself is a well-known company specializing in the production of mobile phone signal amplifiers. Now everyone in the industry knows that if you want to have a good mobile phone signal amplifier, you must choose Saiyue Communication. This is a testimony of strength, and also the affirmation of industry insiders and consumers.

Mobile phone signal interference in urban village rental houses helps to rest

The shadow behind the splendor of every big city is the village in the city. For example, there are many large and small urban villages in Guangzhou. Shipai Village is the largest and oldest among them. People’s first impression of urban villages is crowded, noisy, and a lot of garbage. The alleys are densely packed, with wires and spider webs crisscrossing overhead.

Because the village is too dense and surrounded by high-rise buildings, the village in the city has a weak signal or even no signal at all in addition to being dark and humid. However, most of the people living in urban villages are fresh graduates or young people who have come to the city to struggle. The lack of mobile phone signal is very difficult for young people to accept. The lack of mobile phone signal not only affects their social activities, but also affects their job prospects. Therefore, many renters hold a mobile phone when they look at the house, and when they come in, if there is no signal in the house, they immediately shook their heads and left.

armband signal blocker

So, how to solve the problem of bad mobile phone signal? The cell phone jammer is a wireless communication device, which is different from general electrical installations. It may seem simple to install such wireless communication devices, but there are many knowledges in it:

1. First of all, before installing the equipment, fully test the signal and electromagnetic environment to determine the type of equipment, wire and antenna to be selected. To complete this work, it is difficult to do without relevant instruments and professional knowledge. Many people did not understand the reason and bought the equipment and materials at will, but the results were ineffective, and money was wasted.

2. Secondly, during the installation process, there are certain tricks in the design, layout and connection of the circuit. The same equipment and materials, let professional and technical personnel and ordinary electricians to install, the effect will be different, let alone ordinary people.

3. Once the equipment is installed, it needs to be debugged carefully. Equipment debugging is a complex and professional work, which is often far from perfect, and it is difficult for it to be a professional.

4. Finally, the current mobile phone signal amplifiers on the market are mixed, and most of the products are not guaranteed in quality. Many machines only have amplifier circuits, but there are no quality control and anti-interference control circuits. It felt good at first, but it didn’t take long to get worse. Such an amplifier is not only easily affected by environmental changes, but also has a great impact on the surrounding electromagnetic environment, and even interferes with the normal operation of the base station.

At present, many rental houses in urban villages have installed cell phone signal amplifiers, but most of the owners buy them and install them by themselves. In addition, because of the desire to be cheap, the quality of the equipment purchased is very poor, so the signal effect is not good. How many companies have made the outdoor signal environment more and more complicated.

Telephone jammers are necessary for a good environment for important meetings

We’re tired of being interrupted, especially in important places, and I’m tired of the phone ringing. He was very angry when the leader was chairing an important meeting and was interrupted by the ringing of the cell phone. The frequency jammer is used in the conference room so that the conference has a good environment.

With the popularity of cell phones, cell phone ringtone makes people more tired, especially in some quiet public places. In many places, cellphone use is prohibited as it affects others, affects others to rest or work, and even affect the websites such as the use of the instrument and the moderating effect of cellphone. While there are clear instructions on how to ban cell phone use, there are a lot of people in these places using gas stations for example, as we use cell phone at gas stations is dangerous and probably caused the explosion.

We should know that the important national meeting will last for many days. The content of the meeting must be kept strictly confidential and must not be interrupted by the outside world. Therefore, the mobile phone is prohibited. Not only is this a national meeting, but it was also adopted at a series of corporate meetings where cell phones were banned and cell phone blockers were gradually installed. What do you think is reasonable about Office installation of the cell phone jammer?

Not only are cell phones banned in gas stations, but many public places are starting to ban them. It may also be banned in some private places. We have heard of cell phone jammers being used in schools and cell phone jammers being used in prisons to disable cell phone signals and protect prison security. What about the conference room? Have you seen any examples of this? With people increasingly relying on cell phones, many companies are starting to install an adjustable device in the meeting room. The cell phone jammers will be held in the meeting. The meeting leader conducts the meeting properly without the ringtone intervening. opens and adjusts the disruption area in the conference room. This not only affects the normal use of the outside, but also provides the environment for the meeting.

If the ringing of a cell phone interrupts the speaker’s thinking at an important meeting, it will upset them and distract attendees from the meeting. The cellphone in the meeting room with important rings is rude behavior. Therefore, in many meetings, before the prompts begin, the phone will shut down or put into mute state. Many companies are not allowed to take cell phones with them while attending the meeting, visible on cell phones in the Internet age, the use of cell phones is regulated more and more clearly.

gps lojack jammers

If you’re part of a conference, how do you feel when you hear your cell phone ring frequently during meetings? I think you will be as mad as I am, dissatisfied with this behavior, and even berate the owner of the phone. This is an unfortunate ending, not what we want to see. To avoid these unpleasant results, the conference room to use portable jammer is very important. There are many advantages to using in the meeting room, as you can see above, to prevent the uncivilized phenomenon from occurring. There is not only a ban on cell phone ring tones, but also a ban on cell phone use during the period.

If you’re a boss, you need to attend the meeting often. A cell phone rings or someone is looking at a cell phone in the meeting. Then you can prohibit the use of the cellphone by installing a cellphone signal jammer. It can now be bought in our store www.jammer-shop.com, which will make you more accessible and respected for the staff.

Pros and cons of mobile phone signal jammer

Nowadays, with the rapid development of science and technology, traditional mobile phones are becoming more and more intelligent, and they have become an important communication tool indispensable in people’s daily work and life. Of course, the negative effects caused by mobile phones are also immeasurable. Negative impacts in special scenarios and specific times have become new leak channels and new criminal methods, posing a threat to the security of confidential information. Therefore, it is urgent to strengthen the management and standardized use of mobile phone signal blockers.

Mobile phone signal jammers are mainly used in places where no mobile phone communication is required, such as in various examinations, office premises of confidential departments, gas stations, etc. Because of their easy installation and simple use, more and more companies use signal blocker. And the equipment signal is always in a relatively static state, which will not interfere with other electrical equipment, and has played a certain role in some special places.

GPS signal jammer

The mobile phone signal jammer is also called mobile communication jammer, mobile phone signal isolator, conference security device, etc.The signal jammer transmits a strong signal consistent with the frequency of the mobile phone’s downlink frequency band, and is tuned with the signal sent by the base station to the mobile phone, so that the base station sends to the mobile phone The downlink signal is deformed and cannot be recognized by the mobile phone, which interrupts the connection between the mobile phone and the base station. Simply put, its main function is to make the phone unable to use normally. Its essence is to implement electromagnetic interference to the wireless network on which mobile phone communication depends, so that the mobile phone cannot access the network, and thus cannot receive information from the mobile network, and cannot send information through the network.

However, with the promotion of signal jammers, it has also brought some adverse effects. The wide use of signal jammers will interfere with the normal use of surrounding residents, causing residents to use mobile phones without signals. If the shielding range is shortened, there will be a lot of It is also difficult to control the blind angle and blind zone, the shielding edge distance, and the long-term coverage is wide, the power will be large, and the radiation generated will also affect the human body. Therefore, the quality of a mobile phone signal shielding device depends not only on the The effective shielding degree of mobile phone communication signals, but also whether the radiation pollution produced by it meets the national electromagnetic radiation protection standards

Especially in government agencies, once the staff of the agency accidentally leaked the content of their work, they could easily be stolen by illegal elements. This is a very dangerous thing for agencies and agencies. In order to prevent such incidents from happening, government agencies will be equipped with mobile phone signal jammers or mobile phone signal shielding cabinets to avoid leaks.