The screening effectiveness of unscreened balances pairs face the topic numerous data networks. Networks with balanced cables are operated in various environments, e.g. in industrial factories or in vehicles. To ensure that complex systems do not interfere with each other, shielding of the systems is urgently required. The measurement of the EMC behavior of both the components and the entire systems is mandatory.

On the other hand, the shielding of balanced cables is perceived as expensive; in addition, the cable shielding increases the weight of the entire system. The question therefore arises as to how good the screening effectiveness of unscreened balanced pairs is and which test methods are suitable for demonstrating a corresponding screening effectiveness.

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