HF radio is back. Modern digital tech and SDRs now deliver secure communication with data rates up to 300 kbit/s, providing reliable beyond‑line‑of‑sight connectivity when other systems fail.

HF remains the only global medium that cannot be easily blocked, censored, or shut down - far more resilient than satellites or the internet.

When disasters or political crises take out cell networks, satellites, and online services, HF radio keeps working. It stays vital.

AI in signal processing needs large, labeled clean datasets - but collecting signals first requires finding them and building detectors, which is slow and difficult.

AI often has difficulty with HF classification because HF propagation constantly distorts signals, and overlapping transmissions with strong noise and interference are common.

AI can work for speech‑to‑text and translation, but caution is essential: models often hallucinate and try to deliver a result at all costs.