The Naval Information Warfare Center (NIWC) Atlantic intends to award a firm-fixed-price purchase order to Keysight for product maintenance and support of its previously purchased PROPSIM F64 MANET Channel Emulation Solution. This procurement is being conducted as a sole-source action under FAR 13.101, as only Keysight can provide compatible software for the existing systems. The government will consider capability statements from other responsible sources submitted by 3:00 p.m. EST on May 25, 2026, to determine whether to conduct a competitive procurement. No budget amount is specified, and the location for performance of services is not mentioned. This notice is not a request for competitive quotes.