Summary
This Request for Information (RFI), issued by the Department of the Air Force (AFGSC via the Air Force Installation Contracting Center), seeks industry feedback on Digital HF (DHF) technologies to determine whether they are mature enough to be integrated into the Sentinel NC3 (Nuclear Command, Control and Communications) system in support of Sentinel fielding (IOC targeted circa 2033). The RFI asks respondents to describe system maturity (minimum TRL 6), deployment methodology, cyber-secure communications capabilities (including classified/NSA COMSEC where applicable), and any risks or limiting factors for use in Sentinel NC3 between 2031–2040. Responses are due NLT 03 Aug 2026 1300 CDT (listed as Aug 3, 2026 — 2:00 p.m. EDT on the posting), place of performance is Barksdale AFB, LA, and the primary contact listed is Capt Grant Wilson.