QuestenaПрактика, после которой понятно, что повторить
Вопрос 208

What is the term for the reduction in receiver sensitivity caused by a strong signal near the received frequency?

  1. Reciprocal mixing
  2. Quieting
  3. DesensitizationПравильный ответ
  4. Cross modulation interference

Объяснение

Desensitization is the loss of receiver sensitivity that occurs when a strong signal near the receive frequency drives an early stage toward saturation or forces the AGC to cut gain. Reciprocal mixing raises the noise floor instead, and cross modulation transfers modulation from one signal onto another.

Продолжить работу с тестом

Начать тренировку
Вопрос 208: What is the term for the reduction in receiver sensitivity… · FCC Amateur Extra Class (Element 4) · Questena