Spectrum Analyzerfor Anritsu RF and Microwave Handheld Instruments : Interference Analyzer (Option 25) : Measurements Menu : DF Sound Settings Menu
  
DF Sound Settings Menu
Key Sequence: Measurements > Interference Mapping > Sound
IA Pan & Zoom Menu
 
Speaker On Off
Sounds a tone based on received signal strength. Off mutes the speaker.
Volume
Adjust the volume when the Speaker submenu key is On.
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