Ham Radio Atlas
Ham Radio Atlas
Interactive amateur radio map: repeaters, POTA parks, SOTA summits, ham organizations, beacons, time signals, QSL bureaus and radio history. Maintained by BG7BAG (Beta). 📖 User Guide / 使用手册
Free repeater map
This interactive map and its repeater database are free, maintained by BG7BAG in his spare time. If you find it useful, please consider a $50 tip to keep it running and improving. 这张地图免费维护，如果对你有用，请考虑打赏 $50 支持持续更新。打赏完全自愿。
Data sources & last update:
US — ard-repeaterlist (CC0, community-maintained), Oct 2026;
Australia — Based on Australian Communications and Media Authority information, 11 Oct 2026;
China — compiled by BG7BAG, 11 Oct 2026;
Austria — ÖVSV repeater database (Apache 2.0), 26 Jan 2022;
New Zealand — Based on Radio Spectrum Management (MBIE) information, 5 Dec 2022.
POTA parks — Parks on the Air (pota.app), public API, Oct 2026 (91,957 parks);
SOTA summits — Summits on the Air (sotadata.org.uk), Oct 2026 (182,280 summits);
Organization HQs — compiled by BG7BAG from public sources, Oct 2026 (59 societies).
Beta coverage: 26 US states + Australia + China + Austria + New Zealand + worldwide POTA/SOTA.
Chinese repeater locations are city centers for illustration only.
Coverage circles show a theoretical 25-mile (40 km) 25W mobile line-of-sight range —
theoretical coverage, for illustration only; real range depends on terrain, antenna height and conditions.
About This Map
Ham Radio Atlas is an interactive map showing amateur radio repeaters, POTA/SOTA locations, beacons, and more across USA, Australia, China, Austria, and New Zealand.
Map Layers
- Repeaters: Amateur radio repeaters with frequency, offset, tone, and coverage circles (25-mile theoretical range). Data: USA 9,272 (ARRL), Australia 1,745 (ACMA), China 596 (compiled), Austria 213 (ÖVSV), New Zealand 254 (RSM).
- POTA: Parks on the Air locations for portable operation.
- SOTA: Summits on the Air peaks for mountaintop operation.
- Organizations: 59 amateur radio association headquarters worldwide.
- Beacons: 18 amateur radio beacons for propagation checking.
- Time Signals: 12 standard time/frequency stations.
- QSL Bureaus: 32 QSL card bureaus for card exchange.
- History: 20 historical amateur radio sites.
Data Sources
All data from license-free sources (CC0, Apache 2.0, government open data). See footer for per-source attribution and last update date.
How to Use
Use toolbar to search by location, measure distance, find nearest repeaters. Click any marker for details.
Accuracy
Repeater data is updated periodically. If you find an error, report via Contact page. Coverage circles are theoretical (25-mile radius), actual coverage varies with terrain, antenna height, and power.
Read our Atlas User Guide for detailed instructions.