User`s guide
Key Reference 4
N9320A Spectrum Analyzer 81
Det/Display
Press this hardkey to control detector and display functions.
Detector
(detector type)
Auto Man
Softkey presents a submenu to select a specific detector 
type, or allows the analyzer to select the appropriate 
detector (select Auto) for a particular measurement.
Regarding detectors, it is important to understand what is a 
trace “bucket”. For every trace point displayed, there is a 
finite time during which the data for that point is collected. 
The analyzer looks at all of the data collected during that 
time and present a single point of trace data based on the 
detector mode. The interval during which the data for that 
trace point is being collected, is called the “bucket”.
Figure 27 Detector (auto) Selection Flowchart Rules
Thus a trace is more than a series of single points. It is 
actually a series of trace “buckets”. The data may be sampled 
many times within each bucket.
Phase 
Noise On?
Res BW 
>300Hz? 
Tra ce  
Average On?
Sample 
Average 
Yes 
Yes 
No 
No 
Avg Type 
Power? 
Sample 
Average 
Yes 
Yes 
No 
No 
Any Trace in 
MinHold? 
Peak 
Sample 
Yes 
Yes 
No 
Any Trace in 
Max Hold? 
No 
Peak 
Negative Peak
Yes 
Any Trace in 
Min Hold? 
No 










