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سؤال 76

Why should effective radiated power (ERP) be limited to a satellite that uses a linear transponder?

  1. To prevent creating errors in the satellite telemetry
  2. To avoid reducing the downlink power to all other usersپاسخ درست
  3. To prevent the satellite from emitting out-of-band signals
  4. To avoid interfering with terrestrial QSOs

توضیح

A linear transponder has one fixed output power budget shared by every signal in its passband, and its automatic gain control responds to the strongest uplink, so one overpowered station forces the transponder to reduce gain and starves everyone else's downlink. The concern is shared power, not telemetry errors, out-of-band emissions, or terrestrial contacts.

ادامهٔ این آزمون

شروع تمرین
سؤال 76: Why should effective radiated power (ERP) be limited to a… · FCC Amateur Extra Class (Element 4) · Questena