IRIS Task Scheduler: Simultaneous Active and Passive Operation

To use the simultaneous active/passive feature, you must set the Switching Menu to specify the active system.

The active system can be forced by selecting it exclusively. You can also leave the Switching Menu in Auto mode after the active system is forced.

  1. At the topic of the TSC Editor Menu, toggle the Active or Passive field.

    You can toggle between these two choices if the setup/ingest/scanning is set to active/passive. Otherwise, the text is fixed to either active or passive depending on your selection in setup.

    For simultaneous active/passive operation, the TSC Editor Menu of one system should be set to Active and the other set to Passive.

    1. In the active system, configure the task as usual.
    2. On the passive system, configure a task with the same name.

      You can configure most task parameters can be configured independently except for the antenna scanning parameters (scan mode, azimuth, elevation, scan speed). The scan resolution does not have to be the same.

      For example, for a PPI scan mode, the elevation angles in the passive system task must match those in the active system task.

      Similarly, if you are doing RHIs, the elevation limits and selected azimuth angles must match on the 2 tasks.

      Other than the scan parameters, you have complete freedom to select PRF, processing mode, range, resolution, and similar.

  2. Make sure the Status Products are enabled on the active system and that the Status Product is output (in the Product Output Menu) to the passive system.

    This is how the passive system knows which task to run.

    In operation, when the active system starts a task, it sends a Status product to the passive system. The passive system reads the status product and checks to see if there is a passive task in the TASK Scheduler with the same name. If there is, it runs the passive task.

  3. Save the TSC Editor menu with a name to indicate active or passive.
  4. Save the IRIS mode (Radar Status Menu name) with a name that reflects active or passive (for example, ACTIV_1 or PASSV_1).