The Naval Air Warfare Center, Weapons Division in China Lake, CA intends to procure specific test equipment on a sole-source basis from Rohde and Schwarz, with full and open competition among its authorized distributors. The items required are four RT-ZHD60 Differential Probes and four RT-Z1M High impedance buffer amplifiers. The detailed solicitation will be posted on the SAM website on or about July 11, 2025. All responsible sources may submit a quote for consideration, and they must have an active registration in the System for Award Management (SAM).