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






Rugged Data Recorders

Recorder, Integrated Processor, Router (RIPR ©)

CALCULEX RIPR technology is designed to provide a range of cutting-edge data recorder models suitable for missions on land, air, sea and space. Our recorders are engineered to meet the toughest conditions, making them ideal for use in harsh environments. Their solid-state memory modules ensure optimal performance at high data rates and across numerous parallel ports and busses, while their low Size, Weight, and Power (SWaP) architectures make them easy to fit and install.

Our recorders offer a range of digital and analog interfaces, including, but not limited to, MIL-STD-1553, PCM, UART, and Ethernet. With flexible configurations and modular designs, CALCULEX RIPRs Are Modifiable Commercial-Off-The-Shelf (M-COTS) products allowing systems integrators to match their requirements. Discover our range of advanced data recorders, processors and routers today and experience the CALCULEX difference.

All CALCULEX RIPRs utilize a modular open standard for hardware architecture. The data recordings command, control and status application programming interface (API) comply with the IRIG 106 standard co-authored by CALCULEX and the USAF.

CALCULEX is certified AS9100D/ISO9001.


Legacy Data Recording Products

CALCULEX proudly offers support, sustainment and repair options for our products long after their introduction. Many legacy CALCULEX SPIDR, MONSSTR and ARMOR data recorder are still fielded and operating on missions 20+ years later. Below are the data recording Models that CALCULEX continues to support.

Register for a CALCULEX account to download the latest technical manuals. Contact Us for more information and support requests related to our legacy products.