Welcome to Open Ham Prep, where you can prepare for the US amateur radio tests, or help others study! We’re so glad you joined us!
If you are studying for one of the tests, use the Open Ham Prep app to study, and use this forum to discuss the questions. If the explanations aren’t enough, ask for help by commenting on the question you are having trouble with. If you find new resources or have hints to share, add comments.
If you are helping others study, click the 
and choose “Watching” in the Technician Questions, General Questions, or Extra Questions categories (depending on your expertise) to be notified as learners comment with their own questions about the test questions. You can also browse the latest changes. Be an Elmer and share your knowledge.
What’s special about Open Ham Prep? Why learn here?
- Open Source! The whole app is open source, and anyone can propose changes, not just to explanations for questions, but to the app itself.
- Totally Free! Every aspect of using this site is completely free of cost. (The costs are borne by site volunteers.)
- Mobile Friendly! Study on any device — phone, tablet, or desktop, at your convenience.
- Goal Oriented! Choose a test session or a study cadence, and the app will help you track to successful completion.
- Accessible! Our goal is a completely accessible application. The app is keyboard accessible. (You can help us improve accessibility even more by contributing improvements, if you know how.)
- Community! Every question links out to a topic in this forum to discuss that particular question. If any explanation is unclear, every user has an easy place to ask for help understanding, so that the explanations can be updated and improved to help everyone understand.
- Dark mode! Honors your browser configuration for light mode or dark mode.
- Flexible organization! You can study by the official sections and subsections of the test bank, or (soon) by chapters and sections of the ARRL manuals, or — contribute another useful organization. This is Open Source!
If you need help or have a suggestion, feel free to ask in Feedback or contact the admins.