Data Sources
Data sources & credits
Ham Band Report's server collects public data every few hours and publishes it from this site, so your browser never has to contact these services directly.
| Data | Source | Use |
|---|---|---|
| Solar flux, sunspot number, Kp and A indices, X-ray flux, solar wind, NOAA scales, alerts, WWV geophysical alert, 3-day forecast, X-ray flares, aurora, D-RAP and SUVI images | NOAA Space Weather Prediction Center | U.S. government work, public domain. Displayed and charted; images re-hosted. |
| Solar disk imagery (AIA 193 Å, AIA 304 Å, HMI magnetogram) | NASA Solar Dynamics Observatory | U.S. government work, public domain. Re-hosted. |
| Contest calendar | ContestClock | Catalog CC BY 4.0. Occurrence list with attribution; sponsor rules remain theirs. |
| Parks on the Air activator spots | POTA public spots API | Callsign, park, frequency, mode, time and comments. QRT spots filtered. Activity belongs to POTA and the operators. |
| Active weather alerts | National Weather Service API | U.S. government work, public domain. Summarized. |
| FCC rules and notices | Federal Register API | Public domain. Title, date, type, abstract and link. |
| FCC unauthorized / pirate radio enforcement index | FCC Pirate Radio Broadcasting Database (opendata.fcc.gov) and notice PDFs on docs.fcc.gov | Official open data index refreshed each update; curated original summaries published only after source review. Not an exhaustive FCC database. |
| Ham radio news headlines | ARRL news feed | Headline, date and link only. Stories belong to ARRL. |
| Solar conditions widget | N0NBH, hamqsl.com | Embedded image as offered by the author, with link back. |
| GOES-East and GOES-West regional satellite imagery (GeoColor, band 13 infrared, band 09 water vapor, loops) | NOAA/NESDIS Center for Satellite Applications and Research (STAR) | U.S. government work, public domain. Downloaded every few hours, resized, recompressed and re-hosted. Credited on the page. |
| Satellite orbital elements (GP/OMM) | CelesTrak (Dr. T.S. Kelso), from the U.S. Space Force public catalog | Fetched by our server no more often than every 2.5 hours (Starlink every 12 hours), reformatted and re-hosted. Positions are computed in your browser. |
| Amateur satellite transmitter frequencies and modes | SatNOGS DB (Libre Space Foundation and contributors) | Licensed CC BY-SA 4.0. Filtered to active transmitters of the satellites we show; our derived transmitters.json is shared under the same license. |
| Orbit propagation library | satellite.js 6.0.2 | MIT License, self-hosted with its license file. |
| World map and U.S. state outlines | Natural Earth | Public domain. U.S. map projected and simplified by Ham Band Report. |
| Band plan | 47 CFR Part 97 | Chart drawn by Ham Band Report. |
Our own work
The HF band outlook, conditions index, estimated MUF, noise estimate, charts, gray-line map, satellite tracker, pass predictions, regional imagery viewer, contest and POTA presentation, band plan chart, reference compilation, tools and all site design are original work of Ham Band Report. Outlooks are estimates; see the Disclaimer.
Thank you
To the forecasters and engineers at NOAA and the NWS, and to the volunteers across amateur radio whose work makes this hobby what it is. 73!