AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/hamg-g6b10

How does a ferrite bead reduce common-mode RF current on the shield of a coax cable?

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  1. By creating an impedance in the current's path
  2. By converting it to differential-mode current
  3. By making an out-of-phase current to cancel it

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References

  1. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf Checked 2026-10-11.

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