UNITED STATES OF AMERICA BUNKERS ON THE AIR (USBOTA)
WWBOTA is run entirely by volunteers who give their time, skills, and energy to keep the project alive for operators around the world. As the community grows, so do the costs behind the scenes — website hosting, software, mapping tools, data services, and the infrastructure that keeps everything running smoothly. If you enjoy activating, hunting, or simply being part of the WWBOTA community, you can support the project by “buying us a coffee”. Every contribution goes directly toward keeping the platform online, improving the tools, and ensuring WWBOTA remains free and accessible for everyone. Your support helps us stay independent, ad‑free, and community‑driven. Click the BMAC Logo below to donate to WWBOTA.
Background
Welcome to the website of United States Bunkers on the Air (USBOTA). USBOTA joined the Worldwide Bunkers on the Air (WWBOTA) scheme on 7th January 2026.
What is Bunkers on the Air
WWBOTA is an amateur radio awards scheme (like POTA and SOTA) focused on activating and hunting (chasing) bunkers. More information is on the WWBOTA homepage an navigation links here.
USBOTA List
| Scheme | DXCC | Reference | Name | Type | Lat | Long | Locator |
|---|
USBOTA Map
Intersecting Bunkers
Rules
- Only those bunkers listed with a WWBOTA reference number are valid for USBOTA activations. A valid reference for USBOTA is in the format B/US-xxxx where xxxx is a number starting at 0001.
- A bunker can be activated up to 1000m from the given coordinates, i.e. the ‘activation zone’ is 1000m.
- Up to 5 bunkers can be activated at the same time but the activator must be within 1000m of every bunker’s given coordinates, i.e. only where all activation zones overlap (Venn diagram style).
- A valid activation constitutes 25 QSO with different stations, QSO on different band earn an additional QSO for the activator but not the hunter. QSO in different modes do not earn additional credit.
- For current WWBOTA lifetime awards, each bunker activated scores once in a lifetime.
- WWBOTA and USBOTA welcome multi-scheme activations, i.e. activators are encouraged to activate bunkers with valid references for other schemes (e.g. POTA and SOTA).
- Neither WWBOTA or USBOTA take responsibility for activators: site access and safety is the sole responsibility of the activator. The listing of a bunker on this site (or any other WWBOTA site) does not imply any right of access. Whilst the list is compiled for public and open source material the activator is recommended to apply judgement with regarding to operating near sensitive or restricted sites.
- Multiple modes are permitted for an activation. For example an activator may only achieve 20 QSO’s on SSB during an activation, that activator is permitted to gain the further 5 QSO’s using FT8 or similar mode to gain the required 25 QSO’s to complete the activation.
For a more detailed set of rules please scroll to the bottom of the page.
Logging
- Many activator chose Ham2K PoLo, other applications are available. Activators can upload their ADIF logs using WWBOTA Logger here. Note: The activator must have a WWBOTA account (WWBOTA.net login) to upload a log.
- Hunters QSO are extracted from Activator ADIF logs, hunters may also add additional QSO records. Note: The hunter must have a WWBOTA account (WWBOTA.net login) to add QSO or view their log.
WWBOTA Logger also provides the ability to view logs, statistics scores, awards, maps and more.
Spotting an activation
2. In addition, you may spot direct to the WWBOTA Cluster. (Spots via Ham2K PoLo go direct to the WWBOTA Cluster).
Awards
USBOTA POC
The USBOTA national coordinator is:
K6BBQ (Rem)
Email: marinqrp@gmail.com