GSM frequency shift automatic correction of of R system device

The utility model provides a GSM frequency shift automatic correction of of R system device, uplink low -noise amplifier, the third first detector, the AD converter goes upward, the FPGA treater goesupward, the DA converter goes upward, fourth first detector and go upward the power amplifier and connect gradually, down low -noise amplifier, first first detector, down AD converter, down FPGA treater, down DA converter, second first detector and down power amplifier connect gradually, the second duplexer is connected respectively down power amplifier, uplink low -noise amplifier and retransmission antenna, first duplexer is connected respectively power amplifier, uplink low -noise amplifier and donor antenna go upward, improve GSM the communication quality of R system. 本实用新型提供了种GSM-R系统频率偏移自动校正装置，上行低噪声放大器、第三混频器、上行A/D转换器、上行FPGA处理器、上行D/A转换器、第四混频器以及上行功放依次连接，下行低噪声放大器、第混频器、下行A/D转换器、下行FPGA处理器、下行D/A转换器、第二混频器以及下行功放依次连接，第二双工器分别连接所述下行功放、上行低噪声放大器以及重发天线，第双工器分别连接所述上行功放、上行低噪声放大器以及施主天线，提高GSM-R系统的通信质量。