Amateur Extra Class: 2020–2024
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E9A04:

Which of the following factors affect the feed point impedance of an antenna?

  1. Transmission line length
  2. Antenna height
  3. The settings of an antenna tuner at the transmitter
  4. The input power level
E9A01 E9A02 E9A03 E9A04 E9A05 E9A06 E9A07 E9A08 E9A09 E9A10 E9A11 E9A12 E9A13