Electrical crosstalk is a type of interference where the signals carried in one set of wires "talk across" into another set of wires. This video sets up a simple glider electrical harness that exhibits crosstalk. The harness is constructed using unbalanced signals, e.g. signal pairs that consist of a signal line and a ground return. The construction of the harness is then varied to determine the extent to which the crosstalk can be reduced.