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سؤال 309

Which sideband is normally used for 10-meter HF, VHF, and UHF single-sideband communications?

  1. Upper sidebandپاسخ درست
  2. Lower sideband
  3. Suppressed sideband
  4. Inverted sideband

توضیح

By long-standing amateur convention lower sideband is used on 160, 80 and 40 meters, and upper sideband on 20 meters and everything above it, which includes 10 meters, VHF and UHF. Following the convention matters because a station listening on the opposite sideband recovers unintelligible audio.

ادامهٔ این آزمون

شروع تمرین
سؤال 309: Which sideband is normally used for 10-meter HF, VHF, and… · FCC Technician Class (Element 2) · Questena