Category: Tag Wireless

From ancient times to today, security has always been an important aspect, such as military, network and many other fields. In this case, we need to use different types of security tools in different areas, such as WiFi jammers, which can protect the network security.

In order to ensure a safe environment, various safety measures have been taken in different locations and regions. For example, in factories, hotels, schools, and many other places, we can usually see that in many places, maintenance personnel of buildings should register first. All of this is to ensure security. We can see that security plays an important role in different regions and networks. Now, more and more people are accepting wireless network jammer devices.

Jammer-mart successfully completed the delivery of the UAV defense system at Zhangjiajie Hehua Airport!

On November 24th, our company tested the UAV defense system-portable for Zhangjiajie Hehua Airport and completed the delivery.

The national low-altitude airspace is gradually opening up, and the application of drones is becoming more and more widespread, but the uncontrollable risks from drones are gradually increasing. In the field of civil aviation, the airport encounters drone interference and causes flight alternates and passenger detention. occur. Since 2017, there have been nearly 40 drone disturbance incidents across the country.

In response to “black flight”, although the country has issued a series of drone supervision systems, there are always some “spoken people” who challenge national authority, threaten public safety and personal privacy, and even endanger national security.

Facing the technical difficulties of countering “low, slow and small” targets, effective control of drones still has to rely on professional drone jammer. Anze’s drone jamming gun solves this pain point for you.

drone signal blocker

The jamming gun is small in size and light in weight. By interfering with the UAV’s data link and positioning system, it cuts off the communication and navigation between the UAV and the remote control, thereby forcing the UAV to automatically land or drive it away for prevention and control Civil and military drones with counterattack.

Every time a product is delivered, we will repeatedly debug. We use our dedicated attitude and professional technology to provide customers with perfect solutions for drone attacks and customized low-altitude support services.

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.

China’s self-developed UAV jammer looks strange like a chainsaw

The first is discovery. Almost all current large-scale advanced drones use stealth design, which makes it difficult to discover their whereabouts. At this time, the long-wave radar is used. The current stealth drones are mainly effective for centimeter-wave radars, but for long-wave radars, drones are almost impossible to stealth. Long-wave radar can provide early warning and azimuth indication for stealth drones, laying the foundation for subsequent strategy development.

The second is interference. Utilizing ultra-high-power drone jammer to transmit strong electronic waves to the UAV, blinding the UAV’s radar, cutting off the “umbilical cord” connection between the UAV and the space-based satellite and parent base, making it unable to receive remote control instruction. * Is to take over. When the UAV’s accusation command is interfered by strong electronic waves, it will retransmit a fake GPS parameter to the UAV to make it fly according to the path desired by the trapper, and finally control it to land smoothly to the designated location.

drone jammer gun high power

However, the theory is so, but in fact, because the enemy UAV also has information encryption and anti-interference methods, it is not easy to operate. All military powers are sparing no effort to develop technologies that can “trap” drones. For example, Russia’s “automobile field” is one of the few electronic countermeasure systems that can “trap” advanced drones. It consists of dozens of vehicles, loaded with radar, electronic jamming equipment, and ground command equipment, which can easily penetrate The enemy’s electronic jamming waves and avionics resistance.

Where can I sell mobile phone signal jammers?

At present, there are more mobile phone signal jammers on the market. There is no difference between good and bad. Some time ago, I purchased one from Texin Electronics and placed it in the company’s conference room. The effect is very good.

Generally, one meeting room with more than 100 square meters on your side should be enough. If it is 600 square meters, it is better for you to find out.

Everyone knows that mobile phone signals will be shielded during the college entrance examination. So how much do you know about mobile phone signal jammers? Today, the editor of China Security Network will introduce to you the principles, characteristics, and appearance of mobile phone signal jammers. The problem.

indoor phone jammer

Introduction of mobile phone signal jammer

The cell phone jammer effectively shields all mobile phone signals of CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom Da Lingtong), DCS (1800MHz), PCS (1900MHz), PHS (Telecom PHS) and 3G Used in examination rooms, prisons, courts, conference venues, libraries, theaters, churches, gas stations, gas depots, gas stations, hospitals and other places that require confidentiality, quietness, riot prevention, and interference prevention.

Introduction to the principle of mobile phone signal jammer

The working principle of the mobile phone signal jammer is as follows: within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission is completed with a certain baud rate and modulation method.

In view of the above 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 the working process. 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.

Features of mobile phone signal jammer

Only shield mobile phone signals, and does not affect the normal operation of other electronic devices
Only shield mobile phone signals in the examination room, no interference to mobile phones outside the examination room, let alone the base station
Only shield the downlink frequency of the transmitting base station without affecting the uplink frequency
Green and environmentally friendly, the electromagnetic field intensity is far lower than the national standard, without any impact on the human body
The operation is simple, the antenna is installed correctly, and it can run automatically after power on

Problems and solutions of mobile phone signal jammer

1. Why is the shielding range different from that described in the manual when the shielding device is working?

Answer: The shielding range of the jammer is related to the strong electromagnetic field at the shielding site and the distance from the communication station. Generally the best is 200 meters away. The manufacturer has tested it under normal conditions, so the shielding range will be slightly different.

2. Will there be radiation when the mobile phone signal is shielded? Is it harmful to the human body?

Answer: Regarding radiation, as long as electronic products are large and small, there will be radiation. Any piece of electrical equipment will have radiation. Just like the mobile phones we usually use, it is inevitable that there will be radiation when leaning against our ears every day. The country has also set a standard for mobile phone radiation, and the radiation generated by our mobile phone signal jammer is much lower than the national standard, and it is not every day. Lean against the ears, so there is almost no harm to the human body.

Drones are causing trouble again

From 6 am to 6:30 am local time on May 14, Saudi Aramco’s pumping stations 8 and 9 were attacked by drones, and the company was forced to temporarily close the east-west pipelines. The Yanbu Port that was attacked this time was even more than 700 kilometers away from the Houthi armed forces’ control area, and the ASEF-1 small drones currently in the hands of the Houthi are simply not enough to support such a distance. Voyage. The only explanation is that the attack was caused by a Houthi-armed drone attack squad that penetrated the border between Yemen and Saudi Arabia and carried out a long-distance attack.

Affected by this incident, international oil prices rose sharply during the intraday session, and the intraday increase once exceeded 1.5%.

In March of this year, the Houthi UAV has publicly reached an important strategic goal in southern Saudi Arabia: Suqa Phase 2 of independent desalination and power plants. Compared with the last reconnaissance operation on Suqa Plant 2, the attack on Yanbu is even more shocking, which is too far away from Yemen. Yanbu is located in the central area of Saudi Arabia’s Red Sea coast. The closest distance to Yemen is more than 800 kilometers. The range of small drones in the hands of Husseis is not that far. For such a long-distance flight, at least a medium-sized drone of the level of Rainbow 3 is required. The flying distance has exceeded the direct communication distance between air and ground. Satellite relay communication equipment is required to ensure the communication between the drone and the ground station. Because of the Houthi armed forces’ equipment level and organizational capabilities, the take-off point for this attack cannot be in Yemen. Either take off from the sea, or secretly infiltrate and take off near Yanbu. Obviously the former is the least difficult to implement.

The seven UAVs used in the attack were QASEF-1 suicide UAVs in the hands of Hu Sai. The pictures and information of the aircraft that Hu Sai has shown to the outside world are based on Iran’s Ababil-2 UAV. The maximum flight distance can reach 150 kilometers, the length is 2.5 meters, and the wingspan is 3 meters. Small fishing boats can carry it. . It is very likely that the fishing boat controlled by Husai sailed concealedly to the sea off Yanbu Port. The 150-kilometer voyage can ensure that the ship is on the high seas. The total weight of the warhead carried by the 7 QASEF-1s is 210 kg, which is enough. Two carefully selected pumping stations caused serious damage.

This shows the touching degree of the combat power of the Saudi “Royal Army”. First of all, the borders of their homes were infiltrated by the armed men of the other side without even knowing it, and they were allowed to run hundreds of kilometers in their own territory. What’s more, Iran’s aid to the Houthi armed forces has been significantly reduced after the sanctions. This can be said to be a wave of high-profile UAV counterattacks by the Houthi armed forces against Saudi Arabia under desperate conditions. Saudi Arabia, whose annual military expenditure is as high as 67.6 billion U.S. dollars, has nothing to do with it!

It’s time to consider using drone jammer to counter drone.

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.

What are the main applications of anti-UAV systems

According to its product manual, the anti-UAV system allegedly uses signal jammer on 2.4 and 5.8 GHz frequencies. It also has technology that can block GPS and the Russian equivalent of GLONASS.

By the end of 2017, the long-range automatic anti-UAV system provided by Shenzhou Mingda can provide the detection range of a small drone like the DJI phantom, up to 5 kilometers, 360-degree panoramic coverage, no blind spots and visual tracking capabilities. Identify and eliminate drones up to 2 kilometers away. The system is composed of advanced military radar, advanced long-range EO/IR visible and thermal infrared day and night PTZ surveillance camera system and powerful broad-spectrum RF and GPS signal jammer. . This automated system will provide 24/7 detection, tracking and elimination of drones/unmanned aerial vehicles, with the option of static jammers for permanent installation, making it a high level of mobile, perimeter security, activities, airports, and rural and urban security Ideal choice for value goals. Threats up to 10 kilometers in diameter.

drone signal blocker

There are many systems that can be used to land willful or dangerous drones, but they often have a big gain: you need to be relatively close to the drone, which can be scary if the robot plane is loading explosives. It is launching a drone strike gun, a jammer that can disable drone signals (including GPS and GLONASS positioning) from 1.2 miles away. Like most competitors, it will not destroy the target drone-it simply forces the vehicle to land or return to its starting point. Anti-drone teams can not only disable threats from a safe distance, they can also locate their pilots.

The authorities have now begun field tests of their new anti-drone “gun”, which can shoot down any unpopular drone. The police used a new drone jammer in a recent large football match. Any drones that intrude into the competition venue are banned and forced to land via the signal interference capability of the system.

According to reports, the new jamming system is able to capture the target from a kilometer away, which gives it enough range to eliminate the incoming air threat before it arrives. The authorities are taking these types of threats seriously, which is why they may buy more units for different police agencies in the country.

The “artificial weapon of military force” between Turkey and Russia

The “Krasukha” land-based electronic jamming system is the most advanced signal jammer equipped by the Russian armed forces. The system can effectively interfere with land-based radars, aerial radars, early warning aircraft, and even near-Earth satellites within 300 kilometers. The system is said to permanently damage the target radio equipment.

gps phone blockers

Russia has already deployed a “Klasuha” land-based electronic jamming system in Syria. Compared with Turkey’s “Koral” portable radar jamming system, “Krasuha” has a wider interference range. “Krasuha” can blind the Turkish Air Force’s “Peace Eagle” early warning aircraft, making it impossible for the Turkish side to map the airspace of Syria and the Eastern Mediterranean, and greatly reducing its interception capabilities.

The Russian “Glory”-class guided missile cruiser has advanced maritime combat platforms and air defense platforms, equipped with 16 “Bazart” anti-ship missile launch systems, 64 S-300PMU long-range air defense missile systems and two “Wasps” short-range Surface-to-air missiles. The “Glorious”-class guided missile cruiser has advanced functions such as three-dimensional search and radar tracking, and is called a “floating fortress.” After the Russian fighter plane was shot down on November 24, a “Glorious”-class guided-missile cruiser has been deployed to Latakia Port in Syria.

However, the “Glorious”-class guided-missile cruiser is not without flaws. This class of cruisers lack effective anti-submarine firepower, especially when capturing stealth underwater targets such as Turkish “Gul” class submarines. In addition, Russia has only one “Glorious”-class guided-missile cruiser that can be used in the Syrian region, and several other ships are deployed in the Baltic Sea and the Pacific Ocean.

Russian special forces have a long-standing reputation and have performed a large number of special missions since the Soviet era. They can perform various missions such as long-range raids, assassinations, sabotage, and lurking. It has multiple teams and branches, and its most recent appearance is said to be a “little green man” who suddenly appeared in the Crimea region in February 2014. Many think tanks believe that the Russian special forces are the sword that Ankara is most worried about. Ankara’s envisioned plot includes Russian special forces disguising as Syrian refugees and mixing into southern Turkey and performing special tasks.

Mobile phone signal jammer originally has so many functions

At present, each of us has a mobile phone. From the previous 2G mobile phones to the current 3G and 4G, some people even start to use 5G mobile phones. No matter which mobile phone you are using, turn on the mobile phone signal blocker. Even high-end mobile phones will have no signal. It can be understood that the mobile phone signal jammer is the natural enemy of mobile phone signal, but the type of cell phone jammer on the market is too big, and I don’t know which kind of mobile phone signal jammer is better. Some people will find after using it that the Jammer-mart cell phone signal jammer is still quite good, so let’s take a look at the functions and characteristics of the Jammer-mart phone signal jammer!

GPS cell phone blocker

The purpose of Jammer-mart mobile phone signal jammer has the following points

1. It is used for students’ college entrance examination, because the college entrance examination is the most fair and just test. For most students, it may change their lives. Therefore, using a mobile phone signal shield during the college entrance examination is also a fair and just one for students. Kind of guarantee.

2. Used in conferences, theaters, military, etc.

The function of Jammer-mart mobile phone signal jammer has the following points

1. The shell of the mobile phone signal jammer is made of advanced aluminum alloy shell that can dissipate heat, so it will not have any influence if it is used without electricity for a long time.

2. When the mobile phone signal jammer is turned on, it only has a shielding effect on the mobile phone, and has no effect on other electronic devices.

3. The shielding range is about 1-40 meters, but it should be determined according to the performance of the signal jammer .

4. The mobile phone signal jammer does not have any radiation, and it is a truly environmentally friendly mobile phone signal jammer.

Therefore, after the introduction of the above two points, let us have a certain understanding and understanding of the mobile phone signal jammer.

Which network frequency bands can the 4g signal jammer shield?

There are some differences in the working principles of different jamming device. In some special cases, people want to know how to avoid jammers in mobile phones. At this time, we need to understand all aspects and be able to constantly understand these frequency bands. It is the most important. Many jammers basically have these relatively fixed frequency bands in the process of working. We can understand them correctly, and then keep our signal within the range of this frequency band. Then for you, it is natural Can be avoided.

gps jammer

How do mobile phones avoid the principle of jammers? When you want to avoid jammers, everyone should really understand the specific principles. The principles of different devices will have certain differences, so we should do well in all aspects. The understanding and correct understanding of the specific principles can then bring us more development, so we all need to pay attention to this aspect in time when we are doing it. This is our better way to avoid problems. Prospects.

When you want to know how to avoid jammers on mobile phones, you can really use the new device during the whole use process. When many new device identities are in use, because the specific frequency bands of these signals are not within the overall control range at all, we need to truly understand each situation during the application process. Make the choice of equipment carefully so that it will be better for the whole process, so you need to have a complete understanding of the process.

If you really want to know how to avoid jammers on mobile phones, there is one of the most direct and effective methods, and then you can directly damage the device while others are not paying attention. When you can do a good job of destroying the device, otherwise the mobile phone will not be affected, but in this process, you should still pay attention to more aspects, and be able to really understand clearly under this situation . If you can turn off the power secretly, or destroy the total power supply, you can prevent the jammer from working and ensure that we can use the phone normally. In the process of choosing a method, you need to truly combine your own actual situation, and then choose a practical method.