A systematical analysis is made of various possible alarm messages appeared during the calibration and check of CINRAD/SA, SB, CB RDA (radar data acquisition), in combination with CINRAD/SA, SB, CB RDA (radar data acquisition) alarm messages, technical specifications, capability parameters, adaptation data, and circuit block diagrams of the receiver and transmitter, and the corresponding countermeasures are presented. During the analysis, the opinions of experienced technicians and the source codes are considered, and even the parameters and working status of a certain least replaceable unit are modified temporarily. The alarm messages resulted from modifying the RDA capability parameters are used to check the analysis conclusions. The findings can be used as references for the technical maintenance personnel of RDA equipment.