The low-power mobile phone signal jammers gps is basically used indoors, and the high-power mobile phone signal jammer is basically used outdoors.

　　When the low-power mobile phone signal jammer is used outdoors, the most important thing is to pay attention to rain protection. Just install an awning above the mobile phone signal shielding device, and pay attention to waterproofing the power cord before it can be used normally.

　　When using the shielding device outdoors, pay attention to dustproof and waterproof. Please keep away from corrosive gases and liquids, and do a good job of preventing dust and moisture, so as not to accelerate the aging of internal parts of the equipment. The chassis of the high-power mobile phone signal jammer adopts a waterproof design. No need to worry about normal rain. Just pay attention to the installation height of the mobile phone signal shielding device. High-power mobile phone signal jammers are used outdoors, not only to pay attention to rain protection, but also to take lightning protection measures. The lightning protection method is to weld the antenna bracket to the lightning rod, then insert a steel rod about 2 meters long into the ground, and weld one end of the steel rod to the antenna bracket or the lightning rod with steel wire. The power cord connector of the mobile phone signal shielding device should be waterproof.

　　The antenna must be installed according to the corresponding mark on the host, and then connected to the power of the host.

　　The effective coverage of the jammer is a circular area centered on the jammer, so pay attention to the correct placement of the mobile phone signal jammer device when using it to avoid blind spots; if it is a directional antenna, you can adjust the aiming direction according to the standard sector angle of the antenna.

　　The shielding device should be placed in a well-ventilated place, try to avoid the shielding of large objects, and avoid strong electromagnetic sources of strong heat sources to ensure the shielding effect and long-term stable operation.

　　When shielding work, do not stack other items on it and remove the antenna, so as not to affect the shielding effect and damage the machine. When the shielding device is not in use, the power supply should be cut off in time to avoid affecting the normal use of the mobile phone.

　　When the area of ​​the site is larger than the effective shielding range, it is recommended to use multiple isolators for cellular installation to ensure the shielding effect. Since the power supply and the antenna are dedicated to the host, they are all debugged one by one during the factory debugging. Please try not to use them interchangeably to ensure good results.