Spectrum analyzer

The utility model relates to the technical field of spectrum analysis, and discloses a spectrum analyzer, comprising a signal acquisition card, the input end of which is electrically connected with a receiver antenna; the server comprises a DMA driving module, a first storage module, a multi-thread module and a first data transmission module, the signal acquisition card is connected with the first storage module through the DMA driving module, and the multi-thread module is respectively connected with the storage module and the first data transmission module; the at least one client is in communication connection with the server, each client comprises a second data transmission module, a data processing module, a display and a second storage module, the first data module is connected with the second data module, the data processing module is respectively connected with the second data transmission module and the display, and the display is connected with the second storage module. And the second storage modul