Signal amplification controller

The utility model relates to a signal amplification controller which comprises a protective shell, a stabilizing structure is movably installed in the protective shell, an amplification controller body is movably installed in the stabilizing structure, and the stabilizing structure comprises a spring rod, a limiting plate, a threaded rod, an air channel, a fan, a filter plate and an air window. A spring rod is fixedly mounted in the protective shell, and a limiting plate is fixedly mounted on the right side of the spring rod. According to the utility model, the spring rod and the limiting plates are arranged, the left side of the amplification controller body is clamped with one of the limiting plates, then the threaded rod is rotated clockwise, and the other limiting plate gradually approaches the right side of the amplification controller body and is clamped with the right side of the amplification controller body; the amplification controller body can be fixed in the protective shell, and when the amplific