Ham College 105

Поділитися
Вставка
  • Опубліковано 29 вер 2023
  • AmateurLogicExtra Class Exam Questions - Part 43
    E9A Basic Antenna parameters: radiation resistance, gain, beamwidth, efficiency, effective radiated power.
  • Наука та технологія

КОМЕНТАРІ • 4

  • @Homer19521
    @Homer19521 9 місяців тому

    Antenna "height" is not referring to the physical length.

    • @AmateurlogicTv
      @AmateurlogicTv  9 місяців тому

      Which of the following factors affect the feed point impedance of an antenna?
      A. Transmission line length
      B. Antenna height
      C. The settings of an antenna tuner at the transmitter
      D. The input power level
      The question is a little ambiguous. It depends if you are taking about a ground mounted vertical or some other type of antenna.

  • @Homer19521
    @Homer19521 9 місяців тому

    My "friend" submitted my call after I did? What now??