The Department of Defense, through the Defense Logistics Agency, intends to procure the AN-APN 232 Combined Altitude Radar Altimeter (CARA) Receiver-Transmitter from Symetrics Industries, LLC, dba Extant Aerospace. This procurement involves a firm fixed price request for proposal for the manufacture of 11 units of the Receiver-Transmitter, which is critical for transmitting and processing altitude-related data for various avionics systems, operating effectively from 0 to 50,000 feet. The unique technical specifications and proprietary knowledge required for this equipment render Symetrics Industries the sole source capable of fulfilling this requirement, as the government does not possess the necessary technical data. Interested parties may contact Vanessa Moes at vanessa.moes.1@us.af.mil for further information, with the proposal expected to be released on or before December 11, 2025.