Welcome To Perfectjammer Here you can get the latest information about jammers. Hope our information some help to you

Portable Cell Phone Jammer 8 Band Phone Jammer

Cell Phone Network Jammer For Business

Perfectjammer 2021/10/4

By the annual exam season, all parties have begun to prepare for the exam, and the invigilator has various tricks to prevent high-tech fraud. Among them, the Cell Phone Network Jammer For Business in the exam room is still an anti-fraud jammer. There are many types and models of mobile phone jammers. Before purchasing, users should clarify their needs to avoid test room accidents due to poor shielding effects. They are also paying attention to the correctness of the method of use. First of all, I want to clarify the place of use. Most schools use test room-type mobile phone jammers that are suitable for long-term work and are durable. cell phone jammer The second is how large are we in the shielded area? For example, a room of 100 square meters or a venue of thousands of square meters. If the area is large, the power should be larger, and if the area is small, you should consider choosing a smaller shielding power. Then there is which frequency bands need to be shielded. Are all China Mobile, China Unicom, China Telecom and CDMA shielded? Still only need to shield part of the frequency band.

At this time, we remind everyone that if you want to buy a suitable Cell Phone Network Jammer For Business , it depends on the method used to achieve the effect. The main points are as follows: Indoor jammers are recommended to be placed at a height of about 180cm-220cm from the ground, and the angle is better to lean forward. Whether there are obstructions (such as walls, metal products, etc.) between the mobile phone jammer and the wireless communication equipment (mobile phones, etc.). The interference signal emitted by the mobile phone signal jammer will be attenuated to different degrees after passing through the obstruction, please try to avoid it. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the mobile phone jammer. The farther the jammer application environment is from the signal tower, the stronger the theoretical shielding effect of the mobile phone signal jammer.