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HDMI cables - Ferrite cores …

Discussion in 'Off-Topic Discussion' started by revue5, Jul 7, 2013.

  1. revue5

    revue5 Well-Known Member

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    Hi every one,

    Few Qs,


    • Are "Ferrite cores used around cables for Electromagnetic Interference (EMI) suppression?



    • Are "Ferrite cores" ("beads"/"rings") need it to be used around "High speed HDMI" cables? Or well shielded (insulated) cables are sufficient instead?



    • If the "Ferrite cores" (used around hdmi cables) reduce/eliminate RF Interference (or electronic noise), does that improves the displayed PQ?



    • Would "Ferrite cores" (used around hdmi cables) improve analogue signals (e.g., composite/S-Video/component connections)? Digital signals via HDMI? Or both?



    • Which "High speed HDMI" cables are less expensive? Cables with "Ferrite cores"? or the well shielded (insulated) cables?



    • Do "the length" or "CL2 certification" of the "High speed HDMI" requires "Ferrite cores"?



    • Do improperly shielded or insulated (unshielded) "High speed HDMI" cables need "Ferrite cores"?



    • Are (unshielded / with no "Ferrite cores") "High speed HDMI" cables commonly immune to electromagnetic interference (EMI)? (as the signal is transmitted digitally & differentially with error correction coding).

    thx
     
  2. googlethis

    googlethis New Member

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  3. CatfishRivers

    CatfishRivers Well-Known Member

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