Which of the following is required when making on-the-air test transmissions?
Identify the transmitting station✓Правильный ответ
Conduct tests only between 10 p.m. and 6 a.m. local time
Notify the FCC of the transmissions
All these choices are correct
Объяснение
Test transmissions are still transmissions, so the identification rule applies in full. There is no time-of-day restriction on testing and no requirement to notify the FCC.