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سؤال 364

What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

  1. It must be longer than 1 wavelength
  2. Station equipment may carry significant RF currentپاسخ درست
  3. It produces only vertically polarized radiation
  4. It is more effective on the lower HF bands than on the higher bands

توضیح

A random wire fed directly against the station has no separate return conductor, so the chassis, interconnecting cables and ground wiring serve as the other half of the antenna and carry significant RF current.

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شروع تمرین
سؤال 364: What is a characteristic of a random-wire HF antenna… · FCC General Class (Element 3) · Questena