This amendment addresses vendor inquiries, provides responses to technical questions, and includes updated specifications requiring acknowledgment via a signed SF-30 for continued consideration. NOAA intends to award a firm-fixed-price contract for X14 Frequency Multipliers built to specifications for the Radar Operations Center in Norman, OK. The award will be made on a best-value basis under FAR 12.203(c)(2), and the procurement is 100% set aside for small business entities. Contractors must be registered in SAM and comply with the listed Instructions to Offerors items to remain eligible for award.