Specifing the source for the configuration trigger allows you to use RF list mode with open-loop and closed-loop use cases.

  • Open-Loop Use Case—The RF device advances through the RF configuration list based on a user-defined time-specification for each step. In one configuration option, you can specify a time interval that is based on a hardware timer internal to the RF device. In another configuration option you can use waveform Marker Events in a script to trigger the RF configuration changes in an RF list. With both of these configuration options, the RF signal generator advances through the RF configuration list without any signaling with the receiver.
  • Closed-Loop Use Case—The RF device and the device under test exchange signals along trigger lines to advance through the frequency list. Generally, the closed-loop case is based on the following assumptions:
    • The RF device is able to receive triggers to advance through the frequency list.
    • The RF device is able to produce events as it moves to each step in the RF configuration list.