The Signal Jammer and Cell Phone Jammer
New Signal Jammers Arrive
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Best Seller Cell Phone Jammer
The frequency signal jammer can emit the same frequency as the target object, under this effect, it can disrupt the signal reception of cell phones and other equipment, so as to achieve a good jamming effect. This series is the most popular jammer of Topsignaljammer.
Featured Signal Blocker
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Discount Stock Cell Phone Signal Jammer
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Signal Blocking Device Video
New High Power Handheld 12 Antennas 5G Cellphone Signal Jammer 37 Watts Jamming up to 40m
Portable signal blocking device with the farthest jammer distance, the jamming distance can reach 40 meters!
I am very happy whit the L1 and L2 good service
I am using this device to overcome geo-fencing of the golf cart on a course. I am able to plug it into a small power pack when I need to go beyond their restriction, and then remove power immediately after. The device works very quickly every time without fail, and does so that the cart software doesnt recognize any error or the like, it just thinks the cart hasnt moved until I power the device off, then it catches up. Very good device!
It literally blocks GPS signals, including my car navigation.
It literally blocks GPS signals, including my car navigation.
Would love more explaination and instructions on how things work
I bought it on topsignaljammer's recommendation and it was discounted.
It's so easy to use, I just plug it into my cigarette lighter switch.
I received it in the morning on the eighth day after placing my order.
The store recommended this OBD GPS jammer to me, it is very hidden and can block 7*24 hours!
I use it for a GPS signal jammer shield and it works great, the only downside is that when I turn it on, I can't use the car navigation.
Conscience site, I received it seven days after I placed my order and it works.
The handheld 22-wire jammer works very well and has a good jamming distance, but it has one drawback: the switch on the side is a bit small, I need to use my fingernail to turn it on, but this does not prevent me from using it.
It looks very nice, and I customized the interference band I want, the service is free, perfect topsignaljammer.
I received my package on the eighth day after placing the order and the merchant provided me with a reliable tracking number after it was shipped.
I installed it in our hotel toilet, it covers the whole area and its range is adjustable.
A new study in the UK shows that using mobile phones in the classroom is not conducive to learning, especially for students with poor academic performance. Teachers can use cell phone signal jammers to prevent students from using mobile phones and affect learning.
Restaurant Signal BlockerView
When you are having lunch, if suddenly the phone rings, you may be making noise while eating, how would you feel? May you have a very bad memory. That's why more and more restaurants are starting to answer phones at doors marked with restaurant bans. However, it is clear that the effect is poor. So restaurant operators have to choose to use jamming devices.
When you are watching a movie in the cinema and you are watching, suddenly someone answers the phone next to you. It will definitely make you very disgusted. Some cinema operators have suggested that the government install mobile phone signal jammers.
Prisons use signal interception devices to prevent prisoners from using mobile phones to communicate with the outside world, resulting in illegal phenomena such as jailbreaks and riots.
Libraries use cell phone jamming devices to prevent readers from making loud calls from cell phones and maintain a quiet learning environment.
What are signal jamming device and electronic jammers?
A signal jammer is a device used to interfere with radio frequencies. It can emit high-frequency signals that interfere with the normal operation of other radio equipment.
In order to apply to different usage scenarios, Signal blocker derives a variety of different types:, including fixed, adjustable, and programmable. The signal frequency output by fixed jammers is fixed, while adjustable and programmable jammers can adapt to different jamming needs by adjusting the frequency or amplitude.
What is the blocking principle of signal scrambler?
The principle of the jamming device is to interfere with the normal operation of other equipment by sending out high-frequency signals. These signals are usually emitted in a specific frequency band, usually the radio frequency band. They can be emitted at a fixed frequency, a changing frequency, or a random frequency.
Application scenarios of jammer signal blocker
Signal Disruptor have a wide range of applications, it can be used for a variety of purposes, including protecting classified information, preventing radios from being snooped or tracked, or jamming the signals of other radios. They can be used in government, military, business or personal fields.but they can also cause interference with the normal use of radio equipment. Therefore when using a signal jammer, you need to pay attention to the surrounding environment to avoid interfering with irrelevant equipment or causing unnecessary interference.
Signal jammer is a useful radio device that can be used for a variety of purposes. However, due to their special nature, care needs to be taken when using them to ensure that they do not cause unnecessary interference to radio communications.
How Do I Use A Frequency Jammer And Is It Necessary To Block Full-band Signals?
With the development of science and technology, the current signal jammer is very convenient to use. It only needs you to turn on the switch and open the signal frequency band you want to shield. After 2-5s, the signal shielding can be completed. It can only block the mobile phone signal and Do not block WiFi signals , only interfere with the frequency you want to interfere without affecting the use of other smart technology devices.
Now the signal frequency bands of smart devices are as high as dozens or even hundreds, and the signal frequency bands of each device are different. If you want to block the communication signals of all frequency bands, only military jammers can achieve this effect, but if we use them in our daily life There is absolutely no need to block signals in all frequency bands, just block the most important signal frequency bands.
Of course, we can also customize the signal frequency band you want to block without extra charge.
How Far Can A Signal Blocker Jamming?
The range that can be shielded depends on the power of the signal scrambler and the surrounding environment and signal strength. For example, the presence of walls and wood will affect the transmission distance of the signal jammer. Low-power radio jammer can shield a radius of about 1-10 meters. Circle range, if conditions are ideal, high-power jamming device can even block areas with a radius of more than 100 meters.
Signal Jammers, Why Can Interfere With Your Cell Phone Signal?
Jamming with a mobile phone is like interfering with any other type of radio communication. A mobile phone communicates with its service network through a base station. As cell phone users drive down the street, the cell signal switches from one base station to another.
We know that radio communication uses electromagnetic waves to communicate. The functional properties of electromagnetic waves are determined by their frequency. Our mobile phones must emit qualified electromagnetic waves in order to connect to our telecommunications carrier base stations. Different communication systems use different frequencies, so that everyone is safe and does not interfere with each other.
The phone signal jammer emit the same radio frequency signal as the cell phone signal. Since the frequencies are the same, the cell phone cannot tell which signal is a regular base station signal, thus "jamming". As long as there is a machine on the same frequency as the phone, the base station will make a lot of "noise" when it tries to connect to the phone. You will find that the signal from the phone is unrecognizable, so you will refuse to communicate with the phone.
In the early days, jammers only blocked one set of frequencies, such as 2G, while sophisticated jammer device can block several types of networks at the same time, such as 2-3-4G.
How To Achieve Simultaneous Jamming Of Multiple Signals?
Actually simple. That is, the jamming disruptor bands corresponding to these three signals are repeated in a cyclic manner, covering these three jamming bands at the same time, and the interval of this cycle is so small that the mobile phone has no chance to speak and can only sit down. Covering 2/3/4G, what about bluetooth and wifi? It doesn't matter, the same can be done. The frequency jammer has evolved again, adding the frequency bands of bluetooth and wifi to the scanning range, so that several common communication methods in the society are completely covered.
Many people do not understand the difference between Bluetooth, Wi-Fi and mobile data. They seem to be wireless communication technologies. In fact, the main difference between them is the frequency band. In mobile communication technology, 2G mainly works in the 900-1700MHz band, 3G works in the 1900-2100MHz band, and 4G works in the 2300-2500MHz band. Bluetooth and WiFi work at 2.4GHz.