Precautions:
1. The antenna must be installed according to the corresponding mark on the host, and then connect the power of the host.
2. The effective coverage of the shield is a circular area centered on the shield, so pay attention to the correct placement of the shield when using it to avoid shielding dead angles; if it is a directional antenna, the alignment can be adjusted according to the standard sector angle of the antenna target direction.
3. 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.
4. When the shield is working, do not stack other items on it and disassemble the antenna, so as not to affect the shielding effect and damage the machine.
5. When the shielding device is not in use, the power supply should be cut off in time, so as not to affect the normal use of the mobile phone.
6. When using the phone jammer outdoors, pay attention to dustproof and waterproof. Please keep away from corrosive gases and liquids, and do a good job of dustproof and moisture-proof, so as not to accelerate the aging of the internal components of the equipment
7. When the area of the site used is larger than the effective shielding range, it is recommended to use multiple isolators for cellular installation to ensure the shielding effect.
8. Since the power supply and antenna are dedicated to the host, and they are debugged one by one when they are debugged at the factory, please try not to use them interchangeably to ensure good results.