Spectra Aerospace & Defense is a trusted and growing platform of C5ISR companies – CALCULEX, Galleon Embedded Computing, and ArgonFDS - bringing over a half-century of rugged, mission-ready, battle-tested experience to bear in aerospace and defense applications. From high-speed data acquisition, data recording and secure, high-density storage, to computing and rugged, clear display of mission data, Spectra delivers the products and subsystems needed for the most demanding military air, land, and sea platforms. With our comprehensive portfolio of rugged products, systems, and solutions, the Spectra family of companies’ customized end-to-end solutions for the C5ISR market help military end-users achieve mission success. Simply put, Spectra's rugged solutions Capture, Process, and Display your mission-critical data in the harshest environmental conditions. In the air, at sea, on land, and in space; We simplify integration.


Data Acquisition

Sensor Recording


Mission Computing

Encrypted Storage

NAS & File Serving

Processing & Routing






Supplier Information

General Terms and Conditions

Our General Terms and Conditions (GTC) for all CALCULEX Purchase Orders (PO) and contracts may be downloaded by clicking the button:


Download Terms & Conditions 


Conflict Minerals Policy


CALCULEX is aware of the increased concern that the exploitation and trade of tin, tantalum, gold, and tungsten (Conflict Minerals) originating in the Democratic Republic of the Congo (DRC) and surrounding countries are helping to finance armed conflict characterized by extreme levels of violence, and further unfair labor practices and other human rights violations in the DRC. CALCULEX supports the humanitarian goal of ending the violence and human rights violations by striving to prevent Conflict Minerals from entering its supply chain. CALCULEX’s policy prohibits suppliers from sourcing metals either known to be derived from conflict regions or designated as Conflict Minerals. The supply chain for these metals is complex, and CALCULEX is undertaking reasonable due diligence in our supply chain to ensure these metals are not sourced from this conflict region and/or from conflict mines.