Delta Trace View

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The Delta trace view can be used to view small (or large) changes in the RF spectrum over time. Here's how it works... When scanning begins the first trace is saved as a 'snapshot'.  For all subsequent scans, the snapshot trace is subtracted from the current trace and the difference, i.e. 'delta', is displayed. Plotting the data in this way makes it easy to detect RF changes that occurred since the initial 'snapshot'.