The 5252D multi-channel integrated measuring instrument breaks the test scheme of signal generator for signal transmission and spectrum analyzer for watching frequency domain waveform, integrating signal transceiver and sending, and promoting wireless communication testing into a new era. Its unique multi-channel transceiver integration, high performance, all-round testing capability and intuitive operation mode make it a perfect test platform for wireless communication research and development, production and scientific research. This product has high performance characteristics. Including variable modulation bandwidth, support for a variety of modulation formats, comprehensive signal analysis capabilities and excellent signal transmission quality, frequency coverage ranges from 400MHz to 6GHz and 24.25GHz to 28.5GHz, 37GHz to 42.5GHz, 66GHz to 76GHz millimeter bands, It also supports 31.8GHz to 33.4GHz, 45.5GHz to 50.2GHz, 50.4GHz to 53.6GHz, and 81GHz to 86GHz. The RF modulation bandwidth includes 200MHz (FR1), 400MHz (FR2), and the maximum can be extended to 1GHz, which can meet the test requirements of the fifth generation communication standards and future communication protocols. At the same time, the 5252D also has MIMO channel measurement and SISO channel measurement functions, which supports the maximum 16T16R MIMO channel propagation characteristics test function and the SISO channel propagation characteristics test function of detecting 1GHz bandwidth in the millimeter wave band.