The invention relates to a signal receiver, in particular to an HF/VHF frequency-band PPM signal receiver with a PLL and belongs to the technical field of aeromodelling communication. The signal receiver comprises an antenna and a signal conversion module which utilizes the antenna to couple a signal, wherein the output end of the signal conversion module is connected with the input end of a processor; the output end of the processor is connected with the input end of the PLL (phase-locked loop); the output end of the PLL (phase-locked loop) is connected with the input end of the signal conversion module; and the input end of the processor is also connected with an operation display module. The signal receiver has the advantages of convenient use, low cost, good compatibility, high sensitivity and good selectivity.