PNU / UPNU Position & Navigation Unit / Universal Position & Navigation Unit

High-Precision Pointing and Position Location System

EMCORE’s Position & Navigation Unit (PNU) and Universal Position & Navigation Unit (UPNU) continue their record of excellence in providing the Multiple Launch Rocket System (MLRS) and High-Mobility Artillery Rocket System (HIMARS) programs with the highest performance, reliability, quality, pointing and position location system capability.

The Improved Fire Control System (IFCS) PNU / Universal Fire Control System (UFCS) UPNU family represents a true state-of-the-art system approach. Its design features permit ready adaptation and/or optimization to any current or future weapon system or sensor requiring precision pointing and positioning.

The PNU / UPNU and its variants point the way for the future direction of the land navigation systems. Utilizing advanced sensors, electronics, software and aiding (GPS and odometer), the PNU / UPNU family delivers precisely what the Army of tomorrow needs — a system designed to remain operationally effective and affordable to support well into the future.


  • High-performance RLG-34 ring laser gyros
  • Common architecture and components (Paladin, PIM, Firefinder, IPADS)
  • Embedded 12-channel Selective Availability Anti-Spoofing Module (SAASM)
  • Impervious to jamming (inertial mode)
  • Resistant to jamming (GPS-aided mode)
  • Combat-proven
  • Embedded Built-In Test (BIT)
  • High reliability MTBF, low mean time to repair (MTTR)
  • No periodic calibration required


  • Multiple Launch Rocket System (MLRS)
  • High-Mobility Artillery Rocket System (HIMARS)
  • Pointing and position location