9 military tactical data link diagnostic monitoring and networking equipment, namely, computers for conversion of military computer interface data for transmission over standard telephone lines, for high-capacity control for fighter aircraft, for providing tactical information on friendly and hostile forces to fighter aircrews, for downlinking information from fighter radar on low-flying aircraft, for simulating control of fighter aircraft, and for testing systems of operating forces, for use on surface, subsurface, airborne, and land based sites