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Հարց 373

What is standing wave ratio (SWR)?

  1. A measure of how well a load is matched to a transmission lineՃիշտ պատասխան
  2. The ratio of amplifier power output to input
  3. The transmitter efficiency ratio
  4. An indication of the quality of your station’s ground connection

Բացատրություն

SWR compares the peak and minimum voltages of the standing wave that appears when part of the forward power is reflected by a mismatched load, so it is a direct measure of how well the load matches the line. A perfect match gives 1:1 and reflects nothing.

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Հարց 373: What is standing wave ratio (SWR)? · FCC Technician Class (Element 2) · Questena