BLUF
Modern HF, equipped with advanced resilient waveforms, delivers reliable satellite-independent beyond-line-of-sight communications, preserving critical command and control when SATCOM is degraded or denied and restoring depth and endurance to military communications architectures.- Understand when SATCOM is degraded or denied and why HF provides essential redundancy for maintaining beyond-line-of-sight communications.
- Explain how modern HF capabilities — including NVIS propagation, automated link establishment, improved filtering, and wideband technologies — support reliable higher‑data BLOS communications.
- Apply HF as a primary or backup communications method in military operations, reflecting how U.S. forces employ it in contested and complex environments.
