Spectrum Analyzerfor Anritsu RF and Microwave Handheld Instruments : AM/FM/PM Analyzer (Option 509) : Audio Waveform AM Menu
  
Audio Waveform AM Menu
Key Sequence: Measure or (Shift + 4) > Audio Waveform > Audio Waveform
Audio Waveform AM Menu
 
 
Sweep Time
Press to set the sweep time. If you use the numeric keypad to enter a value, then the submenu keys change to Time in units of s, ms, µs, ns, or ps.
Squelch Power
Press to set the squelch power level.
Back
Press to return to the Measurements menu.