Trace Detection Mode - Promax AE-166 User Manual

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The Math icon is displayed when trace math is turned on.
3.7.3

Trace Detection Mode

Description
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Each time the spectrum analyser samples data for each point on the trace, a
number of samples are usually taken for each point, known as a sample
bucket. The actual value of each point is determined by the detector from the
samples in each bucket.
Each selected trace, (1, 2, 3, 4), can use a different detection mode.
Detection modes
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Auto: Automatically chooses an appropriate mode based on the values of
all the samples.
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Normal: While the signal level is constantly increasing or decreasing, the
positive peaks are detected. Otherwise, the detection mode switches
between positive peak and negative peaks. Useful for picking up burst
phenomenon while avoiding excessive noise.

Peak+: Detects positive peak signals by selecting the maximum peak
value for each point from each bucket. This mode is useful for sinusoidal
signals.
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Peak-: Detects negative peak signals by selecting the lowest peak value
for each point from each bucket. This mode is not recommended for
amplitude measurement.
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Sample: Randomly selects a value from the bucket sample. Useful for
noise signals.
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RMS Average: Calculates the RMS average power of all the samples in the
sample bucket.
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February 2017