The Naval Air Warfare Center in China Lake, CA, intends to procure antenna troubleshooting and repair services on a sole-source, other than full and open competition basis. The procurement is restricted to Terra Universal as the equipment manufacturer and Aviat U.S., Inc., as the only company that can authorize technicians for its microwave radio equipment, with competition limited to their authorized distributors. Interested respondents must provide proof of certification from Aviat and be registered in the System for Award Management (SAM) with an active status. Contractors must also be certified through Defense Logistics Information Services (DLIS) to access Controlled Unclassified Information. Complete details will be available in the solicitation to be posted online.