Use Scan Data in Frequency Coordination

In the Frequency Coordination tab, you can run or open a scan of the RF spectrum and use scan data to automatically exclude occupied frequencies from your calculation. Workbench generates these exclusions based on the peak hold, or summary of maximum levels of potential interference, of all selected scans.

Import Scan Data

Wireless Workbench can import scan files that conform to a strict format of frequency/signal strength pairs. The file must conform to the following requirements:

  • Format must be either .csv or .txt
  • File contents must not include any header information
  • File contents can only include frequency values, followed by a comma, followed by a signal level
Note: The minimum step size for all scan files is 25 kHz.
Scan data formatted as a .csv file for Wireless Workbench import
An image of a spreadsheet with a frequency range and a signal level
Scan data formatted as a .txt file for Wireless Workbench import
An image of a text file with a frequency range and a signal level
Note: Wireless Workbench supports WiNRADiO® (.35s), TTi (.csv), RF Explorer (.csv), and Sennheiser (.csv) scans, and will automatically resample these scans so they are compatible with scan data reported from Shure® devices.

Import a scan

  1. Go to the Frequency Coordination tab.
  2. Select Import and choose to add a scan from your saved files or from the hardware.
    Note: When you import from a Spectrum Manager, save the scan on the hardware before you import it. For the PSM1000 receiver, send the scan to the transmitter via IR sync before attempting to import it.
  3. Browse for the file you want to view and select Open to see the scan.
  4. If you want to save a scan imported from hardware as a scan file, right-click the scan data.
    Note: Scans with an asterisk (*) are unsaved.

Perform a New Scan

  1. Go to the Frequency Coordination tab.
    The scan sidebar with numbers calling out the steps to perform a new scan
  2. From the sidebar, select a scan source.
    • Icon showing a list with all items checked Select all
    • Icon showing a list with all items clear Clear all
    Note: The coverage bar shows scan source ranges in dark green. When a scan is running and someone selects another scan source, currently scanning sources’ ranges are shown in a lighter color.
  3. For devices that support per-antenna scanning, select the antennas you want to scan with.
  4. Choose whether to scan in one sweep or a continuous sweep.
    • One sweep - Scan once with each antenna
    • Continuous - Scan continuously for up to eight hours
  5. Start your scan.
  6. To stop the scan, select the stop icon next to the scanning device.
  7. Right-click the scan data to save it as a scan file.
    Note: Scans with an asterisk (*) are unsaved.

Select Scans for Frequency Coordination

Any selected scans in the frequency coordination plot will be used to generate exclusions when you calculate frequencies. To see a scan on the plot, select it in the scan sidebar.

The Frequency Coordination window with letters by each section that is called out below

You can select multiple scans at once and adjust settings on the plot to change the way Wireless Workbench calculates exclusions.

1. Peak hold check box
Check this box to see a line on the plot that shows the maximum levels of potential interference from among the selected scans.
2. Exclusion threshold line
Wireless Workbench classifies scan data above this line as a frequency to avoid. Drag the line or update in the sidebar to change the exclusion threshold.
3. Peak threshold line
When Wireless Workbench performs a frequency calculation, peaks that exceed this line are classified as an active transmitter. Wireless Workbench assigns a transmitter profile to these peaks and creates a frequency buffer around the peak to minimize the risk of interference. For more information on peak thresholds, see the Assign a Profile to Scan Peaks section.
4. Additional exclusions check box
Check this box to see the exclusions generated from the both the exclusion and the peak thresholds.

For more information about the frequency coordination plot, see the Plotting section.

Add Informational Overlays

You can add other information to your frequency coordination plot, including band splits, intermodulation products, and channel spacing.
  • Band splits - Select Band Overlay to see shaded regions that correspond to the tunable bandwidth for the devices in your inventory.
  • Intermods - Select an intermodulation label to see a visualization of it on the plot. The heights correspond to the order of the intermod.
  • Channel spacing - Select a channel spacing label to see a visualization of spacing parameters.