The goal of this experimental and theoretical study is to highlight the nonlinear dynamic behavior of an inclined cable consisting of a steel wire surrounded by copper wire. Measurements around the first frequency of vibration of the cable in and out of plane and around the second harmonic of this frequency were also carried out. These experimental results are in good agreement with the numerical results obtained via the multiple scale method applied to finite (1- and 2- degree-of-freedom (DOF) models). In order to prepare further investigations related to more complicated behavior, a 4-DOF model is added.