Top Trace (Trace Scale)
The parameter is the time value for the first (top) trace in the viewable portion of the spectrogram. The time value is shown at the top left of the spectrogram (see screenshot below).
The parameter can be specified in number of Scans (a Scan is the resulting trace data from a measurement sweep) or in time units (e.g. mSec).
is stored internally using Scan units and is shown in the Trace Scale tab in both time and Scan units. The annotation on the spectrogram (shown below) is shown only in time units.
See Also
