About CQBase

A study and mock exam tool for amateur radio candidates

CQBase turns China CRAC, U.S. FCC, and Canada ISED amateur radio question pools into browsable, searchable, and practice-ready study paths. Learners can review by region, license class, topic, and question before moving into practice.

6,483

Questions

Imported CRAC, FCC, and ISED questions currently available on the site.

Topics

Grouped by rules, operating practice, propagation, electronics, antennas, safety, and related exam areas.

Regions

Separate study paths for China, the United States, and Canada.

Content & Study Method

Public pages provide study reference; signed-in records, error books, and progress tools support personal review.

Structured Pools

Each pool has a license-class entry page, topic pages, and single-question pages so learners can review by knowledge area before taking a full mock exam.

Answer Notes

Question pages show the correct answer, option text, exam focus, and common-trap notes to reduce answer-only memorization.

Mock Exams

Practice modes include ordered study, ordered practice, random review, and timed mock exams for different preparation stages.

Clear Navigation

Question banks, region pages, About, Privacy, and Contact pages are reachable through normal site navigation.

Question Sources

CRAC China

China Class A, B, and C amateur radio operator question pools, organized from the 2025 data set.

FCC United States

Technician, General, and Amateur Extra public question pools, including the current and upcoming Technician pool versions.

ISED Canada

Canada Basic and Advanced amateur radio qualification question banks.

CQBase is an independent study tool and is not affiliated with CRAC, the FCC, ISED, or any official exam body. Question data is updated when official sources change; if you find an error in a question, answer, or note, please report it through the contact page.

Browse Question Banks

Start from region, license class, and topic pages.

Contact & Feedback

Report question errors, privacy requests, technical issues, or collaboration requests.