Keysight N9915-90020 User’s Guide 213
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
SA Mode Settings
different FieldFox receiver frequency bands, so even if the
temperature hasn't changed, an alignment may be required when
one changes the Center frequency.
—
Hold The alignment process is stopped, but the last alignment
values are applied to subsequent sweeps.
— OFF The alignment process is NOT performed, and the channel
equalization is deactivated.
When you press
ChanEq Align Now
An alignment is performed immediately.
The
Amptd? annotation lights up whenever the current channel equalization is
deemed stale.
Detection Method
In SA Mode, the X-axis is comprised of data points, also known as “buckets”.
The number of data points is specified using the Points setting. Learn more in
“Points ” on page 203.
Regardless of how many data points are across the X-axis, each data point
must represent what has occurred over some frequency range and time
interval.
From the frequency span of the measurement, the span of each data point is
calculated as (frequency span / (data points-1)). The detection method allows
you to choose how the measurements in each bucket are displayed.
Figure 9-17 Detection using One Bucket
In the graphic above there is one bucket showing Positive peak, Sample, and
Negative peak Detection methods.
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