Transmission via balanced cables is preferred in professional environments, as it enables signals to be transmitted with significantly less interference. And this also over longer distances. In addition to the braided shield that carries the “ground” and the “signal”, there is a further wire that phase-reverses the useful signal by 180°. At the receiver, both phases are aligned with each other again (polarity reversal). As interference signals are present “en route” on both phases with the same polarity, they cancel each other out during the phase reversal. What remains is the interference-free useful signal.

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