PLEXSYS delivered a third set of sonomarc Instructor Link software and touchscreens to DELEX Systems, a subsidiary of Zenetex LLC and an International Air Traffic Control (ATC) and Ground Control Intercept (GCI) Training Center. DELEX uses sonomarc at their Oklahoma City-based training center to provide high-fidelity radio and intercom simulation. This software will also help DELEX meet the additional radio simulation requirements resulting from its training curriculum expansion (which includes an ATC Tower simulator).

Sonomarc allows the insertion of environmental sound effects to help increase the realism and training impact on students, according to PLEXSYS. The company says when a student controller hears a radio call from a role player instructor on a sonomarc radio, the role-player sounds exactly like a pilot would in the real world.