Profile: Comtech AeroAstro, Inc. specializes in the manufacture of spacecraft and components. We deal with satellite systems, components and advanced communications technologies. Our STPSat-1 is the first microsatellite which is a structural ring placed between a launch vehicle and primary payload which mechanically supports up to six small secondary spacecraft. This capability allows for space access for secondary payloads. The S-band transceivers are designed to provide telemetry and command uplink for nanosatellites and microsatellites. The unit includes latch-up detection and mitigation circuitry for applications with higher radiation exposure.