Rohde & Schwarz PR100 - Audio

R&S PR100 User Manual
User Key 2:
Setting up the function for the user key 2.
Available functions: VFO A/B, Tone On/Off, SQL On/Off, MGC On/Off, Direct Save,
Run+, Run-, Suppress.
7.5.5 Audio
Audio Volume:
Setting up the volume for the audio output. Adjustable from 0% to 100%