QuestenaÜben und erkennen, was als Nächstes dran ist
Frage 155

How is squelch adjusted so that a weak FM signal can be heard?

  1. Set the squelch threshold so that receiver output audio is on all the timeRichtige Antwort
  2. Turn up the audio level until it overcomes the squelch threshold
  3. Turn on the anti-squelch function
  4. Enable squelch enhancement

Erklärung

Squelch mutes the receiver until the signal exceeds a set threshold, so a weak signal below that threshold is silenced. Backing the threshold off until the receiver noise is heard continuously means nothing is being muted, so even weak signals get through.

Mit diesem Test weitermachen

Übung starten
Frage 155: How is squelch adjusted so that a weak FM signal can be… · FCC Technician Class (Element 2) · Questena