Public safety, disaster relief and military units can broadcast scores of prerecorded messages over public address systems in any language in preset sequences and timing intervals with ALERTCOMMANDER. This tactical warning and message delivery system from IMLCORP consists of software to download pre-recorded warnings and messages, or create new messages, on a desktop or notebook PC, manipulate them, edit them to improve their audio quality, generate custom playback parameters and then upload them to IMLCORP's specially designed, handheld Computer Output Station for playback through the PA system. In the field, the operator can select individual messages or warnings from the output station's memory; tap the screen to set additional variables, such as repeat on/off for single or continuous play; then broadcast each message.