Small-sized SAASM inertial navigation system
The Geo-iNAV Selective Availability Anti-spoofing Module (SAASM), designed by engineers at Geodetics Incorporated in San Diego, CA, and distributed by Spectracom in Rochester, NY, is a GPS-aided inertial navigation system used for UAV and Unmanned Ground Vehicle (UGV) navigation and tracking, high-dynamic aircraft navigation and tracking, robotic control, mapping, and other functions. The SAASM configuration weighs 28.7 ounces and is 7.1 x 5.66 x 2.13 – 85.6 cubic inches. It has an internal Inertial Measurement Unit (IMU) for standard and mid-grade configurations with an external IMU for an advanced configuration.
The Geo-iNAV SAASM is compliant with MIL-STD-810E and MIL-STD-461 EMI and RFI. Interfaces for the SAASM include an external power connector, a TNC GPS antenna connector, an SMA RF connector for an optional internal data link, one Ethernet data port, three RS232 serial ports, and an IMU connector for external midgrade and advanced configurations. Other Geo-iNAV features include centimeter-level position accuracy and support for a variety of IMU interfaces including AMRAAM and SDLC. It has an operating temperature range of -40 to +85 °C and a storage range of -55 to +85 °C. Geo-iNAV comes in six configurations for military and commercial inertial navigation application requirements.