The ANDVT MINTERM KY-99A is a low-cost, lightweight, low-power, single channel, half-duplex, narrowband/ wideband/ wireline terminal providing secure voice and data communications with full key distribution and remote rekey capabilities. The KY-99A is interoperable with ANDVT AIRTERM KY-100, ANDVT TACTERM AN/USC-43 (include KYV-5), VINSON KY-57/KY-58, DSVT KY-68, and SINCGARS equipment. MINTERM's modular distributed architecture provides independent reprogrammable RED, COMSEC and BLACK processing sites with software-controlled interfaces to meet today's needs and the flexibility to easily upgrade for tomorrow's requirements.