Are directional antennas or omnidirectional antennas suitable for meeting room full-screen segment signal jammers?
Today's corporate meetings have become a weekly event, but sometimes someone's mobile phone rings suddenly in the middle of the meeting, disrupting the normal progress of the meeting, and even some particularly important meetings. Eavesdropping on equipment or mobile phones, stealing the content of formula meetings, how can we prevent this situation? According to these problems, Chengdu 8341 Information Technology Co., Ltd. has developed a device that can effectively block mobile signals, that is, a full-screen segment signal jammer, which can effectively prevent the occurrence of eavesdropping problems.
The full-screen segment signal jammer suitable for use in conference rooms is mainly divided into directional antennas and omnidirectional antennas in the market at this stage, so when using a full-screen segment signal jammer, you must choose a directional antenna or an omnidirectional antenna. That effect is also good. To understand this situation, let's first understand what directional antennas and omnidirectional antennas are.
The so-called omnidirectional antenna refers to a wireless antenna that does not have a large angle between the radiation source and the receiver on the horizontal surface. Because the radiation source and receiver are non-specific, this type of wireless antenna is easy to assemble, and there is no need to consider the technical aspects of the antenna installation angle at the transmission point. Omni-directional antennas are generally used in full-screen segment signal jammers when they are close to the ground and have a large coverage area, and the price is low, and the gain value is generally below 9dB. The coverage of the omnidirectional antenna is much like the outline of an apple.
The directional antenna is generally used in the full-screen segment signal jammer to shield the living environment with long signal transmission distance, small coverage area, and high overall target density. The main coverage area of a directional antenna is like a not very neat cone (or sound horn shape). We can also refer to the relationship between the omnidirectional antenna and the directional antenna in this way. The omnidirectional antenna will send signals in all directions, and can receive signals up, down, left, and right. The directional antenna is like a bowl-shaped vertical surface behind the wireless antenna. The front is transmitted, and the signal emitted to the rear is blocked by the vertical surface and reflected to the front, which enhances the compressive strength of the front signal.
Mainly, it is not difficult to find that in the use of the conference room, the full-screen segment signal jammer is generally installed in the front, rear, left, and right parts of the conference room, which is more purposeful. Therefore, when using a full-screen segment signal jammer in a conference room, a directional antenna can be used to concentrate the interference in the frontal direction to increase the interference distance.
