This is a Sources Sought Notice for market research and planning purposes only, not a solicitation. The objective is to procure Ultra-Wideband Digital Receivers, including four-channel, single-channel 40 GHz, and single-channel 26 GHz variants, with specific technical specifications. Performance of services would be at the Naval Research Laboratory (NRL) in Washington, DC. No budget amounts or submission timelines are specified in this notice. Interested parties must submit a capability statement of no more than 5 pages.