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# Solution: Determine the power at the sending end

#### Problem Statement: Transmission and Antenna Systems

Transmission Lines Problem Solving

A 50 km communication line has the following parameters:

series resistance (R) = 21.4 W/km

series inductance (L) = 1.0 mH/km

shunt capacitance (C) = 0.062 mF/km

shunt conductance (G) = 0.868 mS/km

The frequency is 796 Hz and the line is terminated to avoid reflection. If the power at the receiving end is to be โ20 dB (6mW reference) and the sending end voltage is 362 V, determine the power at the sending end.

The power at the sending en is equal to 15.56 kW, 41.92 dB.

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