In this paper, unmodulated pulse radar and four types of BPSK communication interference signal were designed to show the possibility of radar interference effect analysis using simulation. To verify this, the results of the interference impact measurement between the 1.3 GHz band long range radar and the BPSK communication signal conducted by NTIA were compared and analyzed with the simulation results. The simulation results showed good similarity below target detection probability error 1.25 in comparison with the measurement results. As a result, it showed the potential for easier, faster and more consistent analysis results using simulation to solve the difficulties of measurement using actual radar equipment.