HamStudy.org: Cutting edge amateur radio study tools

List Pools

List all available ham radio exam question pools. Use this to discover which FCC exam pools are available for Technician (T), General (G), and Extra (E) class licenses. Shows pool IDs, validity dates, and available languages.

Get Pool

Get comprehensive details about a specific ham radio question pool including metadata, structure, question counts by subelement, and exam requirements. Use when you need to understand the organization and scope of a particular exam pool.

Search Questions

Search for specific questions within a ham radio exam pool by text content, question ID, or keywords. Useful for finding questions about specific topics, regulations, frequencies, or technical concepts. Returns matching questions with full text and answers.

Get Question

Retrieve specific ham radio exam questions by their IDs (e.g., T1A01, G2B03, E4A12). Can fetch multiple questions at once. If pool ID is unknown, automatically searches current pools. Returns complete question text, all answer choices, and correct answer.

Get Subelement

Get all questions within a specific subelement of a ham radio exam pool. Subelements are major topic areas (e.g., T1 = FCC Rules, G2 = Operating Procedures, E4 = Amateur Practices). Returns all questions organized by section with complete text and answers.

Get Section

Get all questions within a specific section of a ham radio exam pool. Sections are topic areas within subelements (e.g., T1A = Amateur Radio Service purpose and permissible use). Returns all questions with complete text and answers.

Get Pool Stats

Get comprehensive statistics about a ham radio question pool including total question count, breakdown by subelement and section, exam composition requirements, and question distribution. Useful for understanding pool structure and exam format.

Search Similar Questions

Search for ham radio exam questions semantically similar to any text query. Uses AI embeddings to find conceptually related questions even if they don't contain exact keyword matches. Perfect for finding questions about a topic, concept, or when you only remember part of a question. Returns similarity scores (0-100%).

Find Similar To Question

Find ham radio exam questions that are semantically similar to a specific question ID. Uses pre-calculated similarity mappings for fast results. Useful for finding related questions, alternative phrasings of the same concept, or questions testing similar knowledge. Can search within the same pool or across all pools.

Uls Lookup

Look up ham radio operator license information from the FCC Universal Licensing System (ULS). Accepts callsigns (e.g., W1AW, K6ABC) or FRN numbers. Returns license class, status, expiration date, operator name and address, and any pending applications. Supports up to 10 lookups in one request.

Find Test Sessions

Find upcoming ham radio license exam sessions (VE test sessions). Search by location (ZIP code or coordinates), date range, session type (remote/in-person), VEC organization, team, or fee. Returns detailed session information including location, time, requirements, capacity, and registration links. Essential for helping candidates find where to take their exams.

Get Vec List

Get complete list of VEC (Volunteer Examiner Coordinator) organizations that administer ham radio license exams. Shows official VEC codes and their full names (e.g., ARRL = American Radio Relay League, W5YI, LAUREL, etc.). Use these codes when filtering exam sessions by VEC.

Get Question Explanations

Get detailed explanations for ham radio exam questions to help understand why answers are correct. Accepts multiple question IDs from the same pool. Returns full question text, all answer choices, the correct answer, and a detailed explanation in markdown format. Useful for studying, teaching, or understanding the reasoning behind exam questions.

Band Plan Lookup

Look up amateur radio band information for a given frequency. Returns the band name, frequency range, and license class privileges. Useful for determining which license classes can operate on a specific frequency and understanding band allocations.

Ohms Law Calculator

Calculate electrical values using Ohm's Law (V = I × R) and power formulas (P = V × I). Provide any two values and get the missing ones. Essential for ham radio exam questions about circuits, power calculations, and electrical safety.

Wavelength Frequency Calculator

Convert between frequency and wavelength for radio waves. Calculate wavelength from frequency or vice versa. Also calculates quarter-wave and half-wave antenna lengths. Essential for antenna calculations and understanding propagation.

List Moved Questions

List questions that moved to a different ID between pool versions. These are questions where the content stayed the same but the question ID changed (e.g., T1A05 became T1A07).

List New Questions

List new questions added to a pool along with their AI-identified resemblances from the previous pool. Shows which old questions each new question most closely replaces or relates to.

Pool Diff Summary

Generate a comprehensive diff summary between a pool and its predecessor. Shows moved questions, added questions (with resemblances), removed questions, and changed questions. Formatted for easy review when updating ham radio study materials.