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سؤال 332

Why is it important to know the duty cycle of the mode you are using when transmitting?

  1. To aid in tuning your transmitter
  2. Some modes have high duty cycles that could exceed the transmitter’s average power ratingپاسخ درست
  3. To allow time for the other station to break in during a transmission
  4. To prevent overmodulation

توضیح

Modes such as RTTY, FM and the WSJT-X digital modes key the transmitter at full output continuously, so their average power can exceed what equipment rated for the low duty cycle of SSB speech or CW can safely dissipate.

ادامهٔ این آزمون

شروع تمرین
سؤال 332: Why is it important to know the duty cycle of the mode you… · FCC General Class (Element 3) · Questena