After on-site investigation of building structure, terrain and local signal tower direction, power supply, channel, etc.; and has a large number of communication microwave technology, excellent business, high quality, strong sense of responsibility, very strict requirements for details, and experienced construction employees can meet the needs of large mobile phones. The construction needs of the jammer system engineering site, and solve and timely deal with various difficult problems on the site. Complete and rich professional and technical information, professional testing and analysis equipment, solve practical problems for prison customers, and provide customers with the best solutions. Cell Phone Rf Signal Blocker Blocker Pouch The effective distance (30-40 meters) generally refers to the indoor distance. In open outdoor areas, the effective distance of shielding can reach hundreds of meters. It should be pointed out that whether it is used indoors or outdoors, the effective range of mobile phone jammers has a certain relationship with the environmental conditions at that time, such as the distance from the base station and the placement position. Therefore, when using cell phone jammer , this factor should be fully considered to avoid shielding dead corners, thereby affecting the shielding effect.
The so-called mobile phone signal jammer, its working principle is very simple, is to send out interference signals, so that users within a certain range can not receive the mobile phone signal from the base station. "The use of Cell Phone Rf Signal Blocker Blocker Pouch must be approved by the Security Bureau and the Radio Administration before it can be used." A person from the Radio Administration said, "Even with the approval of the relevant departments, the mobile phone signal jammer cannot be used at any time, and can only be used during secret meetings. It should be used by special personnel, and must not be used." Fixed power and fixed range. ” He also said that if a unit needs to be customized in small batches, it must be tested to ensure that the surrounding operator base stations will not cause interference.