With more and more frequency hopping communications being used in foreign armies,it is urgent for us to scout broad band frequency hopping signals Aimed at the modern UHF frequency hopping singnal reconnaissance,the paper presents a UHF frequency hopping signal reconnaissance scheme,that is ,the software radio station,and then briefey introduces the advantages and disadvantages of the compressive receiver,channelized receiver,acousto-optic receiver and FFT digital receiverFinally the paper puts for ward two types of new combined reconnaissance schemes and test the last one