Broadcast Systems & Equipment Flashcards
7 cards from real CBT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Broadcast Systems & Equipment flashcards as text
What is the primary function of a distribution amplifier (DA) in a broadcast facility?
Answer: To split and amplify a signal to multiple destinations without degradation
A distribution amplifier splits one input signal into multiple identical outputs while maintaining signal integrity and impedance matching.
In broadcast television, what does the term 'house sync' refer to?
Answer: A master timing reference signal distributed throughout the facility
House sync is a master reference signal (typically black burst or tri-level sync) distributed facility-wide so all equipment operates in phase.
What is the standard impedance for professional video coaxial cable used in broadcast facilities?
Answer: 75 ohms
Professional broadcast video uses 75-ohm coaxial cable, while audio balanced lines use 110 ohms and RF/data systems often use 50 ohms.
Which type of routing switcher allows switching between sources only at specific points in the video signal to avoid glitches?
Answer: Synchronous or 'clean' switcher
A synchronous or 'clean' switcher performs transitions only at the vertical interval or a specific sync point to prevent picture disturbances.
What is a frame synchronizer used for in broadcast operations?
Answer: To align an asynchronous video signal to house sync
A frame synchronizer stores incoming video in a buffer and re-clocks it to match the facility's house sync, enabling switching between non-synchronous sources.
In a broadcast studio, what is the purpose of a proc amp (processing amplifier)?
Answer: To adjust and stabilize video parameters such as sync, burst, and levels
A proc amp processes composite video to restore and adjust sync timing, color burst level, black level, and white level for a stable, standardized output.
What does 'return video' typically refer to in a broadcast production environment?
Answer: Video fed back to a camera operator or remote location for reference
Return video is a feed sent back to a camera operator, remote site, or talent so they can see the program output or another designated source.