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Minimizing PiM generation from RF cables and connectors

May 24, 2012 // SanTron // 0 comments

Minimizing PiM generation from RF cables and connectors Download White Paper 2Mo

Understanding mechanical tolerances, coaxial design details and connector materials used in cable assemblies helps produce communications equipment with the lowest levels of passive intermodulation (PIM).


Communications system interference can come in many forms, but one of the most difficult to defeat is passive intermodulation (PiM) distortion. Unlike noise, which tends

to cover broad bandwidths and is easily filtered, PiM results in discrete signals that fall within the operating bandwidth of a wireless communications receiver, capable of blocking desired signals. at sufficiently high magnitudes, PiM distortion can desensitize a communications receiver, resulting in poor quality of calls in a cellular system or even dropped calls.

Reliable communications system performance depends on minimizing PiM and choosing the right cable assemblies can go a long way towards helping to shave PiM distortion.

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The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted wirelessly using RF-technology. The technology is very easy to install, fit and forget, with two standardised package versions for industrial applications: a rocker switch for actuation by hand and a snap-action switch for mechanical actuation.

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