First check the outdoor antenna, especially the Yagi antenna, because the Yagi antenna is directional, so make sure that its position has not changed, and whether the installation screws are loose....
The signal amplifier is a simple device developed by the intermediate frequency of China Mobile and China Unicom. If there is no or very weak signal of China Unicom and China Mobile indoors, there ...
1. Look at the workmanship and choose the brand. If you use a lot, you can take it apart and compare it internally. 2. There are a lot of low-quality mobile phone signal amplifiers on the Internet,...
If a high-power device, such as a host above 5W (37dBm), may also have greater radiation. Generally, the output power of mobile phone signal boosters is within 200mW (23dBm). After reaching the ant...
1. Select the model. The mobile phone signal amplifier mainly selects the model according to the signal coverage area and the structure of the building. The signal is too weak and the coverage is n...
In the downlink of the repeater station, the signal is picked up by the donor antenna in the existing coverage area of the base station, and the signal outside the band pass is excellently isolated...
Amplification and filtering The output of the pre-stage instrumentation amplifier is buffered and enters the secondary amplifier. This stage is a programmable gain amplifier PGA. The amplified sign...
All indoor and outdoor antennas should be connected before the device is powered on to avoid damage to the device. The indoor and outdoor antennas should be installed on different planes as much as...
1. Model selection: Choose different models according to different areas and building structures. 2. The distribution of the antenna: the directional eight-eye antenna is used outdoors, and the dir...
(1) Principles of wire selection: All wires have an impedance of 50 ohms, because it matches the impedance of the host with 50 ohms. (75 ohms is the standard for cable TV, and it will increase the ...
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