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سؤال 108

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

  1. Right-hand circular
  2. Left-hand circular
  3. Horizontalپاسخ درست
  4. Vertical

توضیح

Weak-signal CW and SSB work on VHF and UHF is standardised on horizontal polarization, so stations aiming for long-distance contacts orient their antennas that way. Vertical is the convention for FM repeater work, and a vertical antenna working a horizontal one loses a large amount of signal.

ادامهٔ این آزمون

شروع تمرین
سؤال 108: What antenna polarization is normally used for… · FCC Technician Class (Element 2) · Questena