Machine room GPS distribution amplification system without independent power supply

The utility model discloses a machine room GPS distribution amplification system without independent power supply, comprising a feed unit and a radio frequency power division unit which are both connected with a GPS antenna interface in a BBU device, the radio frequency power division unit is connected with an adjustable attenuator, the adjustable attenuator is connected with a filter, and the filter is connected with an amplification unit. Wherein the feed unit is connected with the DC/DC module, the DC/DC module is connected with the control unit and the amplification unit, the control unitis connected with the adjustable attenuator, the amplification unit is connected with the GPS antenna, and the control unit is used for controlling the adjustable attenuator. The GPS amplification device is suitable for all GPS amplification devices related to the communication machine room, reduces the difficulty of machine room construction, reduces the workload of on-site construction, reducesthe requirement for engine