Electronic Communication Systems 2nd Edition by Roy Blake

Exercise 42

A slotted line having an impedance of 50 and a velocity factor of 0.95 is used to conduct measurements with a generator and a resistive load, which is known to be more than 50 . It is found that the maximum voltage on the line is 10 V and the minimum is 3 V. The distance between two minima is measured as 75 cm.
(a) What is the wavelength on the line
(b) What is the frequency of the generator
(c) What is the standing-wave ratio
(d) What is the load resistance