Figure 5 shows the path losses of received signal and output signals of optimum and isotropic template receivers along pointing angle from 0± to 360±. The path losses at 0±, 180± and 360± pointing angles are low because they correspond to the broadside direction of biconical antenna and they are high at 90± and 270± pointing angles. The path losses of output signals of both template receivers are lower than that of received signal. This improvement is considered in the term of SNR gain.