E9G05 - Amateur Extra Class

E9G05 : Which of the following is a common use for a Smith chart?
A Determine the length and position of an impedance matching stub
B Determine the impedance of a transmission line, given the physical dimensions
C Determine the gain of an antenna given the physical and electrical parameters
D Determine the loss/100 feet of a transmission line, given the velocity factor and conductor materials
Correct Answer: Determine the length and position of an impedance matching stub