The utility model belongs to the communications field, concretely relates to PDT multichannel monitor, PDT multichannel monitor includes embedded controller, radio frequency down converter, intermediate frequency signal and clock signal distribution module, double -channel signal processing module group, PXIe machine case and remote monitoring computer, PXIe machine case is equipped with the core bus, embedded controller, radio frequency down converter and double -channel signal processing module group all set up in the inside of PXIe machine case and all link to each other with the core bus, intermediate frequency signal and clock signal distribution module link to each other with radio frequency down converter and double -channel signal processing module group respectively, the remote monitoring computer links to each other with embedded controller. The utility model discloses utilized the flexibility of radio and modularization instrument, with the modularization instrument accomplish proruption discernment, TDMA synchronization, 4FSK demodulation, work such as the proruption is analytic and the channel is decoded and then realized PDT's channel monitoring, extension upgrading convenience.