In order to determine these two constants, we need to know the current and the voltage at any point on the T.L. Usually, these constants are determined either from the current and voltage at load side or at the generator side.
4. Impedance Along the T.L
The input impedance at any point along the T.L is given by;
5. Reflection Coefficient (?? )
The amplitude of the reflected voltage wave normalized to the amplitude of the incident voltage wave is defined as the voltage reflection coefficient, ?: