Offline Tool
HF Propagation Advisor
Rough HF band picks from solar flux and K-index. Fetch live values when online.
Offline band suggestions from SFI and K-index. Works offline after your first visit.
Rough HF band picks from solar flux and K-index. Fetch live values when online.
A daily index of solar radio emissions at 10.7 cm; higher values generally favor higher HF bands.
A geomagnetic activity index from 0–9; values of 4+ often mean HF absorption and disturbed conditions.
KI4TQN is a ham radio, GMRS, and emergency communications hub from East Tennessee — free tools, local reference data, YouTube-aligned guides, and consulting for property owners. Use this map to find your lane.
Pick a path: FCC-licensed GMRS, ham exam study, FRS, Meshtastic, just licensed, emcomm volunteer, or property owner.
113 offline browser tools plus step-by-step deployment workflows. Install the site as a PWA for field use.
Tri-Cities, Erwin / Unicoi (I-26), NETNRC linked repeaters, nets, HF listening, go-bag sheets, and ARES/RACES context.
Blog, videos, downloads, antenna reference, and curated radio links — tied to the YouTube channel.
Paid emergency communications consulting for estates, ranches, and remote properties — plus contact and newsletter.