Category: Tag Frequency

With the rapid development of technology, various signals have become more destructive, and the use category has also increased. The scope of application has been extended to many industries, including airports, hospitals, libraries, university examination rooms, etc. If a discreet person uses a signal jammer device, important files can be protected from theft. The WiFi network has become a must for work, but even if we set a password for the WiFi router, someone can easily crack it, and then access your network and use it. In this case, some hackers can steal your data without your knowledge. Therefore, more and more people pay more attention to network security, and some fields have gradually used frequency band jammers that can interfere with various bands.

Have a first class quality jammers

If you have ever wondered why we don’t sell the small cell phone blockphone camera signal blocker for around $ 30-50, the answer is that we are selling professional equipment and not fancy.

Appearance, because it may be too much, but the community of imitations, materials also varies. Life expectancy varies from country to country. The use of one should not go beyond the mere appearance, we can go wrong.

It doesn’t seem fair to send a customer a jamming device with an effective range of less than 10 feet, much the same as many DIY DIY kits on the market. Look closely and you’ll even notice a few advertisers admit that the unit only works about 2-3 feet. 2-3 FEET? It is 24-36 inch. This is the length of the arm. You could just as easily reach out and turn off the offending cell phone yourself.

If a phone blocker device with less than 3 feet of range is what you are looking for, then by all means give this unit a chance. We won’t hold it against you. We even hope it works for you. These devices are about as useful as the mobile apps that tell you how to make a cell phone jammer using your own phone (save your money and don’t buy the app).

mini signal gps jammer

On the other hand, if you are looking for a professional grade signal blocking device then you have come to the right place.

This device is also suitable for the car, As a car jammer, convenient and easy to use.

Whether your request is personal or government, we have the professional quality equipment that will meet your needs. For example, our comparable cell phone blocker provides coverage up to 30 feet or more. Our fixed models offer much more coverage.

If you have any product questions, or just want help determining which product is best for your application, contact us and we’ll be happy to have one of our professionals assist you.

Truth|Does the cell phone signal jammer affect the human body?

Generally, people have inexplicable rejection of wireless devices. They always think that the signals emitted by wireless electronic products will affect their health. So, today, let’s talk about whether cell phone signal jammers have any impact on human health.

First of all, concerns about radiation from electronic products have always been a controversial issue among the people. Because we know that all electronic products have radiation, but different products have different amounts of radiation. Generally, the equipment of regular cell phone jammer will be monitored by the National Center for Disease Control and Prevention before leaving the factory. At present, the National Standards of the People’s Republic of China “Electromagnetic Radiation Protection Regulations” (GB8702-88) and the People’s Republic of China Environmental Radio Wave Hygiene Standards (GB9175-88), according to the national standard radiation level requirements, are allowed only after manufacturers who produce electronic products have passed the test. sell. And after installation on site, it also needs to undergo radiation testing by the National Center for Disease Control and Prevention. For engineering sites that meet national standards, the National Center for Disease Control and Prevention will issue an electromagnetic radiation testing report.

4g cell phone jammer

After testing, electronic products that meet the national standard radiation level requirements have no effect on the human body, so there is no need to worry about whether the signal radiation of the mobile phone signal jammer will affect the health of the body. In addition, according to the conversion of relevant data, the amount of radiation from the mobile phone to the human body should be the largest, and the radiation from the shield to the human body is almost negligible compared with the radiation of the mobile phone we use daily.

Jammer-mart is a manufacturer specializing in the production and operation of mobile phone signal jammers. It provides complete wireless signal jammers, mobile phone jammers, GPS signal jammers, wireless WIFI mobile phone signal shielding products and one station for school examination rooms, prisons, detention centers and other places. Type signal shielding solution.

For more information, please visit https://www.jammer-mart.com/blog.html

UAV jamming system contributes to national defense

In the Zhurihe military parade in Inner Mongolia on July 30, 2017, there was a modern information warfare unit, which was responsible for ensuring the communication of the unit. Drone jammer is another important part of modern information operations. Among them, the second-generation individual portable anti-UAV equipment is an anti-UAV information individual operation equipment.

uav drone blocker

This single-soldier drone jamming device interferes with the drone’s sensors and flight control signals to force the drone to land or return, without destroying the drone. The UAV jamming system of the device looks like a rifle, and it is easy to operate and can be operated by one person. It can block the signal between the interfered drone and the remote control by transmitting wifi and GNSS signals. When the jamming system is turned on, it will completely cut off the connection between the drone and the ground workstation, thereby ensuring airspace safety and interfering with illegal drone intrusion.

Chinese company fined 34.9 million U.S. dollars for selling mobile phone jammers

Phoenix Technology News, May 27, Beijing time, according to foreign media reports, a man in Florida and a Chinese company CTS Technology were formally fined US$48,000 and US$34.9 million by the Federal Communications Commission (FCC), respectively, because of the man. Use signal jammers to prevent drivers from using mobile phones, and CTS Technology sells these devices.

Signal jammer may hinder the work of the emergency response team, thereby hindering public safety, so the use or possession of these devices is illegal.

handheld signal blocker

It is reported that for two years, the man named Jason Humphreys (Jason Humphreys) has been interfering with cell phone signals on Interstate 4 between Seffner and Tampa until 2014 Was caught.

At the time, MetroPCS reported that its signal towers would always be disturbed at certain times of the day, but in fact this is exactly the time Humphries drives to and from get off work every day.

The document shows that the FCC had planned to fine Humphries US$48,000 two years ago, and this week the FCC finally officially confirmed the penalty.

Humphries told the police that he had been using signal jammers in his Toyota vehicles to prevent other drivers from making calls while driving.

The FCC determined that this was an “unauthorized behavior, which used illegal equipment to cause deliberate interference.”

The fine for the Chinese company CTS Technology was much higher, reaching US$34.9 million. The FCC said that for more than two years, CTS Technology has been selling 285 signal jamming devices to American consumers through the company’s official website or third-party platforms, and falsely claimed that some devices have been approved by the FCC.

The FCC said the company sold 10 high power jammer to the committee’s secret investigators. They can interfere with signals such as mobile phones, Bluetooth, radio waves, and GPS, and some interference strength can even reach half a mile.

jammer signal device Powerful

FCC official Travis LeBlanc said: “In today’s mobile world, cellular networks, GPS and other signal jamming devices will seriously endanger communications, commercial operations and public safety. The promotion or sale of these devices to the public is illegal and will be severely punished.

How far is the most suitable shielding range of a mobile phone signal jammer?

The shielding distance of the device has a great relationship with the power of the device and the use environment, and several aspects that are helpful to the shielding effect: one is the output power of the device, the other is the working method of the shield, and the third is the use environment (indoor or outdoor). The fourth is to shield the interference intensity of the surrounding environment.

Nowadays, mobile phones are all digital signals, and the anti-interference ability of digital signals is very strong. Generally, the effect of using analog signal technology to interfere with digital signals is poor. Therefore, digital signals must be used to interfere with digital signals. The interference effect is quite different. The signal jammer using digital jamming signal technology has lower power and higher efficiency than the jammer using analog signal jamming technology.

desktop mobile phone blocker

The synthesis, attenuation, and reflection analysis of indoor mobile phone signals and interference signals is very complicated. Before shielding, the strength and quality of local cell phone signals have a great impact on shielding. Different mobile phones have different effects. Generally, mobile phones with strong ability to receive weak signals may not have good anti-interference effects.

The direction of the base station and the direction of the shielded area of the mobile phone also affect the shielding effect. Generally, the spatial signal strength is about -60 to -70dbm, and the base station can reach about -40dbm within a few hundred meters, and the mobile phone reception strength range is generally between -35 to -95dbm. The higher the signal power of the space mobile phone, the shorter the shielding distance.

The above conclusions are based on the law of radio signal transmission in free space. In reality, there are many obstacles on the ground that affect the transmission of radio waves. The above can only be qualitatively used as a reference, especially indoors. The above law is very different from the actual situation. Therefore, this problem is difficult to calculate accurately at the time, and can only be determined based on the actual situation on site. Precise construction projects must carry out preliminary research and signal testing, and then design specific solutions. In the later period, timely follow-up tests are required, and certain corresponding supplements can be foolproof, that is, to achieve the effect of strict shielding.

What are the characteristics of a 3-antenna 5-band handheld GPS mobile phone jammer?

In such a modern society, the use of GPS and cell phone signal tracking devices has become a common phenomenon in our daily lives. In order to prevent your life and privacy, and avoid being tracked by GPS and cell phone signal tracking systems, the ideal way to solve this problem is to have this kind of equipment to lock its working ability. This 3-antenna 5-band handheld GPS cell phone jammer is the good product you are looking for.

portable wireless signal jammers

As people’s living standards improve, most people pay more and more attention to their lives and privacy. As more and more signal tracking devices enter modern society, we must take action to compete with these tracking devices. This GPS cell phone jammer can help you and can be a good assistant. In order to enjoy a high-quality life, all types of jammers are an indispensable part of life. We use jammers to protect our privacy and protect our lives from the interference of such a modern society.

First of all, this handheld GPS mobile phone signal jammer has strong interference capabilities. It has 3 antennas but can cut off 5 frequency bands. The purpose is to cut off GPS and CDMA GSM DCS PCS signals at the same time. The 10-meter interference radius depends on the signal strength in a given area. This mini handheld mobile and GPS jammer can not only block cell phone signals, but also GPS signals. Therefore, you can enjoy a quiet life, and at the same time, you can enjoy a high-quality life without being tracked by others. These jammers can also protect our family and friends. More importantly, the mini portable design, you can use the mini compact design as you want, this mobile phone and GPS signal jammer bring more convenience to our daily life. You can take it to any place you want. You can use it at any time. In addition, this 5-band handheld jammer can also create a peaceful environment for you at the same time, just use it, and the mobile phone will lose the function of sending messages and making calls in the distance.

What are the differences between ordinary mobile phone signal jammers and high-quality signal jammers?

Signal jammer, generally speaking, can be divided into ordinary shielding and high-quality shielding.

Ordinary shielding, its technical characteristics are mainly based on shielding principles, using a large number of low-power or high-power devices to fight against, staying on simple technical solutions.

gps wifi cell phone jammers

High-quality shielding, its technical characteristics adopt strong signal digital frequency hopping technology, which reduces radiation by 150 times compared with ordinary shielding technology; mainly outdoor shielding, reducing indoor radiated power by hundreds of times; multi-channel combined technology, full-frequency antenna replacement N frequency-dividing antennas are suitable for wireless remoteness, laying the foundation for distributed antennas; using distributed antenna technology, reasonable distribution of shielding power, dispersing the power signal, reducing antenna radiation, providing tens of times the efficiency, and eliminating dead spots and leaks ; Jike’s unique TD synchronization technology, for China Mobile’s 3G (TD-SCDMA) and 4G (TD-LTE) networks, only shields the downlink pilot time slot to prevent interference to the base station, obtained by the China Mobile and Radio Management Committee The recognition, while reducing radiation dozens of times.

Comparison item Normal shielding Quality shielding
Low price moderate price
Technology
Basic shielding principle
Run by quantity
1. Digital dot frequency/frequency hopping technology
2. Multiplexing technology
3. Distributed antenna technology
4. Jike TD synchronization technology
Installation location is uncertain Outdoor
Radiation big radiation small radiation
Effect
1. Cannot fully shield
2. Large interference:
To surrounding/base station
3. Unstable operation
it is good
Service life is shorter than three years

Mobile phone signal jammer installation and technical advantages of conference room signal jammer

Many companies will install signal jammer in conference rooms. The main reason is that they don’t want to let the phone call in to disturb the progress of the meeting. What are the technical advantages of signal jammers in conference rooms? What are the installation methods of signal jammers? Below jammer-mart Let me introduce you.

newest hidden mini cell phone jammer

Advantages of existing technology of mobile phone signal jammer:

(1) The new cell phone jammer can already achieve the IMSI number obtained in the 4G mode, which does not disturb the people, does not interfere, and is green;

(2) Which floor in that area has a mobile phone violation alarm, that is, the shielding device in the area is activated, not all devices in the entire unit’s supervision area are activated together, not for a long period of time, so the shielding effect is very small, the time limit is very short, green Environmental protection;

(3) Leading technology, mature and reliable, in line with the technical prevention requirements of national signal control;

(4) It can effectively block the 2G+3G+4G mobile phone standards that all mobile\linkage operators have opened and run today. The IMSI number obtained in the 4G mode in the coverage area can be used for all telecom mobile phones. The system collects and is handed over to the telecom operator for whitelist control.

Installation method of mobile phone signal jammer

1. When using an external mobile phone signal jammer with an antenna, lock the letter on the antenna corresponding to the letter on the host, and then turn on the power.

2. The mobile phone signal jammer with built-in antenna is easier to use. Just plug in the power and turn on the switch.

How to crack the working principle of the mobile phone signal shielding device in the college entrance examination examination room?

There are generally two ways to block cell phone signals:

One way is the same as the principle of closed-circuit television. Put the mobile phone in a metal mesh bag, and in principle all electromagnetic waves will be shielded.

Another is that if you walk into an area, the mobile phone will have no signal. This is because there is an electromagnetic wave transmitter in the area. Its frequency is the same as that of the mobile phone. The signal it emits interferes with the signal of the mobile phone.

The cell phone jammer currently on the market work in accordance with the second method. In fact, the principle is very simple, but private use of this frequency band is illegal and cannot generate commercial value, but now schools are starting to use it to prevent cheating. Let’s take a look at its working principle.

When the mobile phone is working, it is within a certain frequency range. The mobile phone and the base station are connected by radio waves, and the data and sound transmission are completed with a certain baud rate and modulation method. In response to this communication principle, the mobile phone signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during operation. The scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system and other phenomena.

How to crack?

First of all, I feel shameless about this title because it has no solution. I am actually telling everyone how to avoid it?

Method one (very silly and shameless): When entering the examination room, secretly turn on the shield while the teacher is not paying attention. At the beginning of the exam, the teacher will habitually turn on the shield, because the shield itself is turned on, so… it will be turned off!

Method two (luck): WIFI, WLAN unlimited local area network functions only available in smart phones, turn on wifi, wlan and other devices, search-connect-confirm-enter the password (default password 12345678). According to experience, all routers like to use the wifi password The setting is the same as the username, you know. (Because many jammer products in the market do not shield and interfere with the 2.4G frequency band of WIFI)

Method three (tips): When the mobile phone has no signal, click Settings-Network-Network Selection-Manual-Searching Network-Select Network (China Mobile/China Unicom/China Telecom) Speed select the type of card you use, speed exit, so Short-time signals can be obtained. This method consumes more power because it needs to search the Internet.

Talking about the advantages of UAV jammers

Today, more and more people complain that their personal lives are often exposed to unauthorized drones. UAVs are very famous today, they are usually used to capture important events or certain objects from the air. Since these technologies do not stand in the same place, new and more advanced models of drones and squares are being created every day that can turn your personal life into the object of particularly curious espionage.

Intruders are one kilometer or more away from objects protected by traditional security systems. They can conduct industrial espionage from the air, monitor private life, throw prohibited items around guards or export valuables, and drugs bypass control points and inspections. Considering the growing threat of terrorism around the world, the use of drones carrying explosive devices can be expected to attack crowded locations and sensitive infrastructure elements. Equally dangerous is the drone, whose operators simply lose control and stay away. Such drones are in the airport area even at very high altitudes, and can enter the engine of the flying or landing aircraft and turn off the power cord.

Thieves can obtain detailed information about the location of guards and installed CCTV cameras, the location of storage facilities, and the number of any secret equipment. As you can see, with the help of drones, detailed information can be obtained. Therefore, if you want to protect yourself from unauthorized entry into your personal life or business, then you should know what drone jamming technology is. The jammers of quadcopters and drones are high-power devices that can block the audio and video transmission of information. These devices are beneficial because they can store confidential materials.

When choosing a drone jammer, please pay attention to the spectrum of the blocking frequency. The drone jammer is a powerful device that can effectively prevent the operation of the following frequencies: video transmission frequency (2.4G WIFI 2400-2500MHz 20W); remote control frequency (2.4G WIFI 2400-2500MHz 20W); ˚F video Transmission and remote radio control (5.8G 5.5-5.9MHz 2W) rate; ˚F remote radio control nuclear rate (868-912 MHz, 860-920MHz 25W, 20W 433-434MHz); GPS frequency L1 1575 MHz 40W.

uav drone blocker

The anti-drone jammer is equipped with multiple pin antennas. The length of the antenna can be different. The blocking radius of the suppressor can also vary according to the signal strength, location, and remoteness of the basic control. The more powerful the function you choose, the larger the blocking radius. It is important to note that the jammer has a low-noise built-in fan. With such a reliable cooling system, you can stay calm and overheating will not pose a threat to you.

Most drone radio jammers have unlimited working hours, so you can use it for a long time. Signal jammer is specifically used for advantageous purposes to ensure control of the territory, prevent industrial espionage, counter-terrorism purposes, attempts to move narcotic substances, certain types of weapons, personal family information or commercial espionage, etc. 2.4 GHz jammer for drones-ideal for any citizen who cares about privacy. If you have any questions about drone blockers, you can call our manager or send a message. We are happy to answer all your questions. In addition, we will help you choose a suppressor that meets all your requirements.