Detection Method - Keysight A Series User Manual

SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
SA Mode Settings
How to make Channel Equalization Alignments settings
These settings do NOT survive a Preset or Mode Preset.
1. Press Cal 5 >
2. Then choose from the following:
When you press
The
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
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.
222
Individual Align
— Auto (Default setting) SA measurement applications monitor
changes in internal temperature and the time since last alignment
update and trigger the need for a new update when the alignment
becomes stale. The alignment is deemed stale after a significant
change in temperature or a significant time elapsed from the last
update. The temperature change and time duration necessary to
trigger an alignment update is predetermined in the factory.
Some examples of the conditions when alignments occur are: This
could be a Center frequency change, or it could be as simple as
requesting a Single sweep. Also, unique alignments are required at
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.
ChanEq Align Now
Amptd? annotation lights up whenever the current channel equalization is
212.
ChanEq Alignment
>
An alignment is performed immediately.
Keysight N9927-90020 User's Guide