Amateur Extra Class: 2020–2024
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E7C10:

Which of the following filters would be the best choice for use in a 2 meter band repeater duplexer?

  1. A crystal filter
  2. A cavity filter
  3. A DSP filter
  4. An L-C filter
E7C01 E7C02 E7C03 E7C04 E7C05 E7C06 E7C07 E7C08 E7C09 E7C10 E7C11 E7C12