Reasons for poor signal

With the rapid development of mobile communication networks, network coverage is constantly expanding. Wireless communication relies on the propagation of electromagnetic waves to establish communication connections. However, due to the continuous development of various buildings and traffic roads, and being blocked by buildings, there are still some weak links in wireless communications that cannot satisfy customers in some tall buildings, basements, shopping malls, restaurants, home rooms, entertainment venues and many other places. The mobile phone signal is so weak that the mobile phone cannot be used normally. At present, there are mainly the following problems:

1) Blind area: after the signal is lost, it is lower than the reception sensitivity of the mobile phone, resulting in poor mobile phone calls;

2) Weak area: mainly after the signal is lost Lower than the reception sensitivity of mobile phones, resulting in poor mobile phone calls;

3) Conflict areas: Mainly in high-rise building areas, wireless signals come from multiple communities, and are mostly unstable reflected signals from the ground and walls, resulting in frequent Handover (i.e. ping-pong effect) seriously affects the normal communication of mobile phones;

4) Busy areas: Mainly areas with heavy traffic, where base station capacity cannot meet communication needs, and users cannot access the mobile network for normal communication. .

The mobile phone signal amplifier (micro repeater, also called a mobile phone signal booster) is a product specially designed to solve the above weak mobile phone signal areas. This type of product has the characteristics of small size, flexible installation, etc., and can provide deep coverage of indoor signals. Practice has proven that it can provide stable and reliable signals for indoor mobile communication users, allowing users to enjoy high-quality personal communication services indoors.

The working principle of mobile phone signal amplifier (micro repeater)

1) Downlink: The useful signal that can be called is received by the outdoor Yagi antenna and is input to the host. After amplification, it is sent to the indoor ceiling antenna for emission. In this way, stable and reliable signals can be received by indoor user mobile phones at any time, which is downlink.

2) Uplink: The signal emitted by the indoor user's mobile phone is absorbed by the ceiling antenna, input to the host, then amplified by the host, and then sent to the outdoor Yagi antenna for transmission to the base station. This is uplink.