• Tel: 01524 383320 Forsberg Services. North Quay Offices, Heysham Port, Heysham, UK


The CPUPak-4 is a GNSS navigation system featuring an on-board 80586 PC processor that allows it to be a versatile and powerful navigation product in a rugged enclosure.


CPUPak-4 Brochure

The PC enables custom made applications to be installed and run via several operating systems including Windows NT4, Windows NT embedded, Windows CE and Linux. This means the user has many choices depending on the application for example the use of OmniSTAR’s DGPS service, the ability to provide attitude and functionality and the option to run bespoke software direct from the CPUPak-4 platform that could reduce development costs.

 CPUPak-4 Features and Advantages 

  • EMC and shock tested to military standards which ensure operation in harsh environments.
  • Optional NovAtel OEMV GNSS cards, GPS, GLONASS and dual antennas as well as the INS product range.
  • Optional Rockwell MPE GPS cards for SAASM P/Y code product range and anti-jamming capability.
  • 6 x RS232/422, 3 x USB ports for connectivity for all purpose at up to 1Mbit/sec
  • Compliancy for RoHS, CE, E and e.
  • Attitude and heading
  • Inertial navigation and can be upgraded using BAE Systems, Honeywell, iMAR and Litton inertial sensors.

Due to component obsolescence the CPUpak product is now obsolete. The capabilities it provided can be found through our other GNSS receivers MICROpod and ReACT.

CPUpak in use

Attitude Determination System (2007)

A customer required a system that they could use to position three objects and know the relative distances, heading and pitch between all three. They also had the requirement that they could change the display to match either TRUE or any GRID projection from a worldwide selection.

Speed Reporting System (2004)

The system had to provide sub-metre positioning sufficient to correctly identify probe-vehicles travelling in a high traffic volume motorway network and interchange system. At the same time as position, vehicle velocity had to be given with an accuracy of 0.1 miles/hr or better.

Precision Navigation: Royal Navy (2003)

The requirement was to produce a precision integrated navigation system for mine countermeasures vessels and remains in service since it’s integration in 2003. Quality control of data and Built-In-Test results from the hardware were of paramount importance.