Keysight N9927-90001 User’s Guide                                                            243
RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only)
RTSA Mode Settings
Average Count 
The Average Count setting is used mainly with the RMS Average Trace State 
described above. (But, also applies to the MaxHold or MinHold trace states.) In 
the RMS Average Trace State, the Average Count setting determines the 
number of sweeps to average. The higher the average count, the greater the 
amount of noise reduction. 
For all three of these Trace States (RMS Average, MaxHold, or MinHold), when 
Sweep 3
 Continuous is set to OFF, press Restart to reset the sweep count to 1, 
perform <n> sweeps, then return to Hold.
How to set Average Count
—Press Meas Setup 4 
—Then Average Count
— Enter a value from 1 to 10,000 using the numeric keypad, the   arrows, 
or the rotary knob.
—Press Enter
Alignments 
The RTSA mode requires all three alignment types: amplitude, RF burst, and 
channel equalization. Refer the SA chapter’s “Alignments” on page 180 for 
information on all Alignments.
Display Line
A display line is a simple, horizontal line that can be placed at any amplitude 
level on the RTSA screen. Use a display line as mental guide for visual 
feedback.