The National Institute of Standards and Technology (NIST) is seeking information from industry to determine the availability of a high-frequency dual-channel signal synthesizer for its Boulder, CO site. This sources sought notice is for market research only and does not constitute a solicitation. NIST anticipates delivery of the synthesizer 15 weeks after receipt of order. Respondents are invited to submit information, including standard commercial pricing, to help NIST estimate a fair market price and refine draft specifications. Responses are due by July 16, 2026.