At CRAS, The RTS PS20 is used for what function?

• A. Intercom to the director
• B. Video routing
• C. Audio monitoring
• D. It wets the party lines

Answer: (D)

The RTS PS20 is used to feed and activate the crew’s intercom network. In a broadcast facility like CRAS, intercom lines are shared “party lines” that allow talkback among directors, producers, and crew. “Wetting” the party lines means applying the audio signal so those lines are live and usable. So the PS20’s job is to energize and distribute talkback across the party-line intercom, enabling coordination during a show. The other options describe functions handled by different gear (direct intercom to one person, video routing, or general audio monitoring), which aren’t the PS20’s role.