IQ Signal Masterâ„¢ MX280005A Vector Signal Analysis Software Help : Basic Operation : Analyzing a Point of Interest : Trace Density Peak Finder
 
Trace Density Peak Finder
The Trace Density display provides a peak finder tool. Right-click the trace density display to show the peak finder dialog as shown in Figure: Peak Finder. Click or right-click to stop the time sweep. The Peak Finder menu is described in Table: Peak Finder Menu.
Peak Finder
1. Peak Finder Dialog. See Table: Peak Finder Menu.
2. Peak Table. See Peak Table Dialog.
Peak Finder Menu

Peak Finder
Right-click the trace/density plot to display the Peak Table shown in Figure: Peak Finder. Initially, the Peak Table is blank. Once the Peak Finder is right-clicked, the program will search the signal for peaks and display the results in the Peak Table. A red horizontal line is displayed to indicate the Peak Threshold value. Drag this line up and down to increase or decrease the number of peaks found. The signal Frequency, Width, and Power columns are populated with the signal details. The trace/density plot shown in Figure: Peak Markers Detected shows the peak details of each marker. Right click the Peak Marker table to display the dialog shown in Peak Table Dialog.
AM Audio Demodulation
Right-click the trace/density plot. Press to demodulate to the AM audio and display the peaks in the AM Audio table. Note the Table transitions to an AM Audio table. Frequency and Power column are displayed. Click a marker to display the AM peak signal on the trace/density plot that is similar to the Peak Markers detected in Figure: Peak Markers Detected. See Audio Demodulation for specific audio demodulation applications.
FM Audio Demodulation
Right-click the trace/density plot. Press to demodulate to the FM audio and display the peaks in the FM Audio table. Note the Table transitions to an FM Audio table. Frequency and Power column are displayed. Click a marker to display the AM peak signal on the trace/density plot that is similar to the Peak Markers detected in Figure: Peak Markers Detected. See Audio Demodulation for specific audio demodulation applications.
Capture Signal Peaks
The signal peaks captured in the Peak Table are displayed in the trace density display shown in Figure: Peak Markers Detected.
Peak Markers Detected
1. Marker #1 from the Peak Table.
2. Marker #2 from the Peak Table.
3. Marker #3 from the Peak Table.
4. Marker #4 from the Peak Table.
5. Marker #5 from the Peak Table.
6. Marker #6 from the Peak Table.
7. Red Line: The peak finding threshold and power levels above the line are considered to be in a peak. The line can be dragged up and down to increase or decrease the number of peaks found.
8. Trace/Density Information Icon: Hover to show the dialog shown below.
Peak Table Dialog
Right-clicking the Peak Table provides a peak marker alignment and positioning menu for the trace/density plot. See Figure: Peak Table Menu. See the detailed description of the marker alignment and positioning menu in Table: Marker Alignment and Positioning Menu.
Peak Table Menu
Marker Alignment and Positioning Menu

Merge Selected Peaks
Shift-click the markers in the Peak Table to display as merged in the trace/Density display plot. Note the markers to merge must be in synchronous order. (i.e 1-2) (2-3) (1,2,3).
Delete Selected Peaks From List
Click the markers to delete from the Peak table and from the trace/density plot.
Align Peak Positions
Provides the Boundary Menu shown below:
Extract AM Audio at Peak Positions
Extracts the identified AM Audio peak signals in the trace/density plot. The table changes to AM Audio and displays the signal markers frequency and power in the table. Right-click the AM audio table to display the menu shown below. FM Audio displays the same menu.
 
Extract FM Audio at Peak Positions
Extracts the identified FM Audio peak signals in the trace/density plot. The table changes to FM Audio and displays the signal markers frequency and power in the table. Right-click the FM audio table to display the menu shown below.
Save Selected Channels to WAV Files: Shift or Control-click particular frequencies in the list to select signals for saving as WAV files. Confirmation dialog shown below displays number of files and navigation to file location.
Save All Channels to WAV Files: Save all frequencies to WAV files. Confirmation dialog shown below displays number of files and navigation to file location. WAV files are saved to the same folder as the data file that is being processed.
Display Marker Table: For quick access, the Audio table changes to the Marker Table. SeeMarker Table.
Display Peak Table: For quick access, the Audio table changes to the Peak Table. See Peak Table Dialog.