Questenaتمرینی که نشان می‌دهد بعد چه چیزی را مرور کنید
سؤال 153

What is the effect of excessive microphone gain on SSB transmissions?

  1. Frequency instability
  2. Distorted transmitted audioپاسخ درست
  3. Increased SWR
  4. Sideband inversion

توضیح

Too much microphone gain overdrives the speech amplifier so the audio waveform is clipped, and an SSB transmitter turns that into distorted, splattering transmitted audio. It does not change the SWR, which depends on the antenna system, or make the radio unstable.

ادامهٔ این آزمون

شروع تمرین