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Pregunta 358

In what units is RF feed line loss usually expressed?

  1. Ohms per 1,000 feet
  2. Decibels per 1,000 feet
  3. Ohms per 100 feet
  4. Decibels per 100 feetRespuesta correcta

Explicación

Loss accumulates multiplicatively along a line, which is why it is quoted logarithmically in decibels rather than in ohms, and 100 feet at a stated frequency is the standard reference length in cable data.

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Pregunta 358: In what units is RF feed line loss usually expressed? · FCC General Class (Element 3) · Questena