Amateur Extra Class: 2020–2024
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E7G02:

What is ringing in a filter?

  1. An echo caused by a long time delay
  2. A reduction in high frequency response
  3. Partial cancellation of the signal over a range of frequencies
  4. Undesired oscillations added to the desired signal
E7G01 E7G02 E7G03 E7G04 E7G05 E7G06 E7G07 E7G08 E7G09 E7G10 E7G11 E7G12