Spectrum Analyzerfor Anritsu RF and Microwave Handheld Instruments : Interference Analyzer (Option 25) : Trace Menu
  
Trace Menu
Key Sequence: Shift > Trace (5) key
The instrument is capable of displaying up to three traces, one with live data, and the other two either with stored data or trace math data.
Note 
This menu is active only when making Spectrum measurements. The key sequence is not operational when Spectogram, Signal Strength, RSSI, Signal ID, or Interference Mapping measurements are active.
IA Trace Menu
 
Trace A, B, C
Sets trace A, B, or C as the active trace. Repeatedly pressing this key toggles through trace A, B, and C. The active trace is underlined.
 
View/Blank
Displays or hides the active trace.
Write/Hold
Selects between holding the current swept trace on the screen or continually sweeping and updating the displayed measurement. This is not applicable to Trace B or Trace C unless trace math involving Trace A is active.
Trace A Operations
Lists the Trace A Ops menu to select an operation that can be applied to Trace A. See Trace A Ops Menu.
 
Trace B Operations:
Lists the Trace B Ops menu to select an operation that can be applied to Trace B. See Trace B Ops Menu.
Trace C Operations
Lists the Trace C Ops menu to select an operation that can be applied to Trace C. See Trace C Ops Menu.
 
Reset Trace
Resets the trace averaging, Max Hold and Min Hold, and restarts the sweep.
Trace Info
Stops the current trace and displays a summary table of trace parameters and current settings. Press Enter to clear the table from the display and restart the trace.