Chapter 8 is dedicated to cable simulation and introduces the use of the multiconductor transmission line (MTL) method for cable simulations. In the first part of this chapter, we cover the fundamentals of modes and transmission lines and explain how MTL models wave propagation. We discuss the characteristic impedance of a transmission line, outline the limitations of MTL modeling, and compare it to full-wave simulations. Following this, we introduce the common-mode and differential-mode descriptions and analyze the emissions from both modes. The first application example in this chapter involves simulating crosstalk in long cables located within the wiring of an aircraft. In the second example, we simulate crosstalk in a shielded cable and discuss how cable shields are modeled using the concept of transfer impedance. Finally, we introduce various methods for coupling MTL models with full-wave solvers. In the advanced sections, we provide mathematical details of the MTL method and introduce the simulation of stochastic wire harnesses.