Dependence of the detection rate on the lower limit of the spectrum S/N. The observed rates DR_obs are calculated solely on the basis of satisfying the S∕N > S∕N_min criterion and do not consider the match of the peak frequency to the test frequency. The true detection rate DR_true results from the correction of the observed rate by the FAR, namely, DR_true = (1 −FAR) ×DR_obs. The signal identification and analysis method are indicated in the upper right corner. The most commonly used range for the lower limit of the spectrum S/N is shown by the gray rectangle. We use 500 random realizations of the signal shown in the header; see also Table 1.