Which of the following can be calculated using a Smith chart?

A Smith chart is a specialized circular graph used by RF engineers and radio amateurs to solve problems related to transmission lines and matching circuits. It allows you to plot complex impedances and easily calculate how impedance transforms along a length of transmission line. Distractors like radiation resistance, antenna radiation patterns, or radio propagation are incorrect because the Smith chart does not plot physical space or propagation data. It strictly maps the mathematical relationship between resistance, reactance, and transmission line length.