Cell phones were once very common, and normal frequencies and common frequency bands include GSM, CDMA, DCS and PCS. With the rapid development of high technology, 3G signal has also entered the market. In addition, these frequency bands are commonly used in countries around the world. As these cell phone communication bands facilitate communication among people all over the world, many people are also negatively affected by cell phones. Therefore, in this situation, a portable GSM jammer can bring great assistance to people.
Here’s a story about an undocumented driver’s phone in Indonesia that exploded due to smoke. It has become a common practice to install cell phone jammers at gas stations.
“There’s been a lot of interest in mobile jammers,” said David Warnes, a senior adviser at Industry Canada. Hong Kong reportedly used cellphone jammers last month. The city is full of crazy cell phones. There are 6 million people and 5.2 million cell phones.
Japan tightened rules on cellphone jammers more than two years ago and allowed licenses to be used in certain public places, such as theaters.
How do cell phone jammers block GSM, CDMA, DCS, PCS or 3G signals? This is because cell phone jammers are devices that prevent a cell phone from picking up cell phone signals and sending them to nearby locations. This way, signals in the jamming frequency range of a particular cell phone jammer can be blocked, giving the ability to make calls and send audio from within. People in the fracture zone will not be disturbed by loud noises, please stay calm and stay clear-headed.
It is precisely because of the weak function of the jammer that it can stand out in various high-tech products and become the most popular product.