Chapter 10, Problem 10.9P

A 100-m transmission line is used to propagate a signal from a transmitter to a receiver whose input impedance is $50\Omega$. The transmitter is capable of launching 12 dBm average power at the input end of the line (see Problem 10.8 for the definition of dBm). The line is lossy, having characteristic impedance $Z_0=75+j10\Omega$, and power loss coefficient A = 0.05 dB/m. Find the power that enters the receiver in both dBm and in mW.