Mobile phone signal jammers have become standard equipment in examination rooms. Not only for high school and college entrance examinations, but also for postgraduate examinations, civil service examinations and various qualification certificate examinations, mobile phone signal jammers are needed to prevent candidates from contacting the outside world through wireless signals. In the examination room where cell…

The function of cell phone signal jammer is to block signals. It is used in many occasions. The most common use occasion we come into contact with is in the examination room. Nowadays, information spreads very fast. With a mobile device, all kinds of information can be spread to every corner in an instant. For some occasions where information cannot be spread, mobile phone signal jammers are very…

Cell phone signal blockers are mainly used in various examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, military areas and other places where the use of mobile phones is prohibited. It is understood that the mobile phone signal jammers currently on the market can limit mobile phone…

Compare how a cell phone signal booster works to an antenna: The booster receives the cell signal from a base station and sends it to the cell network. You can forget about issues like limited range, dropped calls, and slow data rates when you have a cell phone signal booster. Therefore, a cell phone signal booster is your personal supply of high-quality cellular network.

Cell phone signal booster will help your cell phone work at a high level. This device improves the reception of…

Common cell phone signal jammers on the market have operating frequencies: 869~894MHz; 825~960MHz; 1805~1880MHz and 1900~1990MHz, etc. The applicable frequency bands are CDMA800, GSM900, DCS1800, and PCS1900. It can control a range of about 40 meters in diameter, using a DC-DC converter input voltage and 5V output voltage.

Before purchasing a jammer, there are several important factors that…

Every year during the college entrance examination, the school will have network problems, such as mobile phone disconnections and slow Internet speed, because the school has turned on the cell phone jammer. If we think of cell phones as handheld two-way radios, radios are subject to interference, and cell phones are no exception. Like any radio, cell phone signals are subject to interference.

In…

As we all know, full-band jammers, with their advantages of high efficiency, stability, reliable quality, and strong interference, play an important role in various places that require signal shielding, such as examination rooms, party and government agencies, large enterprises, etc. Now many families are trying to So that children can concentrate on learning, they will also choose a full-band jammer with better performance. So how to choose a full-band jammer?

1. According to signal…

Many customers have called and said that I need a cell phone signal jammer that can block signals with a radius of 50 meters, an interval of 500 meters, and a radius of one kilometer, and it needs to be blocked by China Mobile, China Unicom and China Telecom.

Is there a problem with the customer's request? No problem, and specific interval requirements are given, but can it be completed? The…

Shop around to select products and conduct extensive research to learn more about:

1. Investigate product quality, technical means, brand, etc.;

2. Through Internet search, initially understand and communicate with technical personnel, and listen to technical instructions;

Prison demonstration to see the effect:

Select a few and go to the site to test and demonstrate the shielding effect;

The third part examines the actual effects of the case.

After…