Before the box-type police jammer is turned on, it is necessary to match the antennas of the radio frequency modules of each frequency corresponding to the signal frequencies, and fully tighten them to avoid virtual connections, otherwise the jammer module will not be able to output normally, resulting in module failure.

For the vehicle-mounted EOD jammer, before the jammer module is powered on, the antenna on the roof needs to be raised. The jammer uses an omnidirectional antenna, and the best effect can be achieved only when the antenna is perpendicular to the ground. The vehicle-mounted police jammer needs to charge the power compensation battery from time to time when it is not used for a long time. When charging the battery, you only need to start the vehicle and turn on the power to generate electricity. For the backpack-type jammer, it is also necessary to repeatedly tighten the corresponding antennas of different frequency bands before turning on the device, otherwise it will seriously affect the jamming effect and even cause the jamming module to fail. Because of its simple operation and flexible use, it can be applied to various occasions and has a wide range of applications, and can be used as individual soldier equipment.

In order not to be interrupted by the sudden ringing of the mobile phone during the meeting, disrupting the order of the meeting, and in order to prevent the leakage of the confidential content of the meeting when holding a confidential meeting, it is a very wise choice to use a conference room signal shielding device in the meeting room.

Frequency Jammer

The conference room signal jammer used in the conference room with a small area is a conference room signal jammer that can choose an external antenna. This external antenna signal jammer is composed of a power adapter, a jammer host and an antenna. Because there is no shell cost, the price will be relatively lower. Let's put aside the quality and craftsmanship for the time being. Some shield antennas are even of different lengths, which will definitely affect the overall aesthetics of the conference room environment, and it will appear very awkward. In addition, the heat dissipation of some shielding devices is not designed through the air duct. With the rotation of the cooling fan, some noise will be generated, which will affect the order of the meeting room in the conference room. If the meeting time is within an hour, the cooling fan can be disconnected. The conference room mobile phone jammer will not generate noise when it is turned on. If the meeting time exceeds one hour, it is recommended to use a low-noise jammer.

When choosing a conference room mobile phone signal jammer with built-in antenna, the antenna is completely invisible from the appearance of the shielding device. The jammer itself forms a whole, and the built-in antenna is also a kind of protection for the antenna, which can avoid transferring In the process, if you accidentally bump into the antenna, it is easy to break the connector between the antenna and the host. At this time, the shield can no longer be used and needs to be returned to the factory for repair. If you continue to use it, it will cause the radio frequency module inside the conference room signal jammer to burn out. If the signal shielding device with built-in antenna needs to be transferred, it is very convenient. You can directly grasp the groove handle on the back of the machine. It is simple and convenient. normal use of the device.