Longitudinal voltage

Longitudinal voltage

In telecommunication, a longitudinal voltage is a voltage induced or appearing along the length of a transmission medium.

"Note 1:" Longitudinal voltage may be effectively eliminated by using differential amplifiers or receivers that respond only to voltage differences, "e.g.," those between the wires that constitute a pair.

"Note 2:" Induced longitudinal voltages at low (power-line) frequencies can be greatly reduced by twisting parallel wires to create what are referred to as "twisted wire pairs." "Synonym" common-mode voltage.


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