This read-write object, typed as WvLoopbacksList, selects which kind of loopback test is to be performed on the terminal. An admin sets this object remotely to run diagnostic loopbacks on a radio terminal without needing physical access, which is essential for troubleshooting a link at a remote, hard-to-reach tower site. For example, a technician sets wvLoopbackType to a specific loopback value before scheduling wvLoopbackStartTime, so the loopback activates automatically at a convenient maintenance window.