The signal from port P3 to port P1 will experience 10 dB of loss, and the signal from port P2 to port P1 will have 0.5 dB loss.
從端口P3到端口P1的信號將經歷 10 dB的丟失，並且來自端口P2的信號到端口P1將失去 0.5 dB。