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5
Command Reference
86
Type of Detection
[:SENSe]:DETector[:FUNCtion]NEGative|POSi-
tive|SAMPle|AVERage|RMS|NORMAL
[:SENSe]:DETector[:FUNCtion]?
Specifies the detection mode. For each trace interval
(bucket), average detection displays the average of all the
samples within the interval. The averaging can be done using
two methods:
the power method (RMS)
the video method (Y Axis Units)
The method is controlled by BW/SWP > Avg Type.
• Negative peak detection displays the lowest sample taken
during the interval being displayed.
• Positive peak detection displays the highest sample taken
during the interval being displayed.
• Sample detection displays the sample taken during the
interval being displayed, and is used primarily to display
noise or noise- like signals. In sample mode, the
instantaneous signal value at the present display point is
placed into memory. This detection should not be used to
make the most accurate amplitude measurement of non
noise- like signals.
• Average detection is used when measuring the average
value of the amplitude across each trace interval (bucket).
The averaging method used by the average detector is set
to either video or power as appropriate when the average
type is auto coupled.
• Normal detection selects the maximum and minimum video
signal values alternately. When selecting Normal detection,
"Norm" appears in the upper- left corner.
*PST:
Positive
Key access:
Trace > More > Detector
N9340B Programmer's Guide
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