Passive intermodulation (PIM) of antenna of mobile phone jammer

This kind of cell phone jammer is mainly specific to the domestic and oversea small places where special safety and confidentiality are needed including the private employer, confidential office, negotiation room, mobile vehicle, mobile guard site for powerful figures in politics and business and so on.

Brand: Wuhan Huida Technology; Model: MSI-608C; Power supply voltage of cell phone jammer: 220V; Emission power of cell phone jammer: 1-2W; Covering radius of cell phone jammer: 5-100m; Working temperature of cell phone jammer: -20-+45℃
It is suggested that shielding system of the cell phone jammer be turned on with two hours after turning off the light. It can ensure that students can learn how to live a good life and keep a good and healthy life habit. Sleep early and get up early so that student will not feel sleepy the next day and they can focus on the study and lessons
The cell phone jammer can be directly fixed on the wall or ceiling with the screw. The surface temperature of the product can reach 50℃; therefore keep it away from the object of the low heat-resistant performance. Installation height: the installation height of the series of BH-201 mobile phone jammer is 1.8-2m and at this time the biggest isolating range can be achieved. Installation direction: don’t point the antenna of the series of BH-201 cell phone jammer to the base station direction of the cell phone; otherwise the effect will be influenced
Some wrongful businesses copy the managing concept of the professional manufacturer to step into the market of such locations which has high shielding requirements as the jail, prison and so on. For the profession enterprise of researching, developing and manufacturing the cell phone shielding system, the requirements for the cell phone shielding are the same for any location where the cell phone shielding system is needed
Passive intermodulation (PIM) of antenna of mobile phone jammer The PIM characteristic means the intermodulation effect of such passive components as the joint, feeder line, antenna, filter and so on caused by their own nonlinearity when they work under the condition of high-power signal of many carrier frequencies
When adopting the formed wave beam design in the vertical plane of the base station antenna, the first zero point of lower side lobe should be filled without the obvious null depth so that the radiation level in the business area can be more uniform. Normally, if the null depth is -20dB more than the main wave beam, it means that the antenna has the zero padding. The antenna of the big-section base station has no such requirements. The high-gain antenna especially needs to adopt the zero-padding technology effectively improve the nearby covering