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CBT Certified Broadcast Technician VIP Practice Exam
CBT — The Certified Broadcast Technician (CBT) exam is administered by the Society of Broadcast Engineers (SBE); it is the entry-level credential in the SBE certification hierarchy, consisting of 100 multiple-choice questions with a 3-hour time limit and a 70% passing score, covering electronics fundamentals, RF/antenna theory, audio/video technology, digital systems, FCC regulations, and broadcast operations.
31
Questions
180m
Time Limit
70.00%
To Pass
Question 1 of 31👑 VIP
A broadcast engineer measures a transmitter's output power at 50,000 watts (50 kW). Due to a faulty combiner, the effective radiated power (ERP) reaching the antenna is only 25,000 watts. Expressed in decibels relative to the transmitter output, what is the loss introduced by the faulty combiner?
Questions 2–31 and full explanations are VIP-exclusive.