WC4DC Radio Library
Learn it. Build it. Put it on the air.
A curated collection of amateur-radio guides, reference material, public-domain books, official resources, club-created articles, and hands-on learning material.
22Resources
5Guided paths
11Active topics
Copyright-aware by design. Each resource can identify whether WC4DC may host the file or should direct visitors to the copyright owner’s site.
22 resourcesCurated for learning, operating, building, and public service.
PUBLIC DOMAIN
Licensing
2023–2027 General Question Pool
NCVEC Question Pool Committee
The official General-class pool with the latest published errata and withdrawn-question notices.
PUBLIC DOMAIN
Licensing
2024–2028 Amateur Extra Question Pool
NCVEC Question Pool Committee
The official Amateur Extra pool, current errata, withdrawn questions, and Extra-class figure set.
PUBLIC DOMAIN
Getting Started · Licensing
2026–2030 Technician Question Pool
NCVEC Question Pool Committee
The current official Technician-class question pool, syllabus, errata, and diagrams from NCVEC.
OFFICIAL SOURCE
Licensing · Operating
47 CFR Part 97 — Amateur Radio Service
Electronic Code of Federal Regulations
The current federal rules governing the U.S. Amateur Radio Service.
EXTERNAL RESOURCE
Emergency Communications
Amateur Radio Emergency Service (ARES) Resources
ARRL — The National Association for Amateur Radio
ARES overview, plans, task books, field resources, and emergency-communications training links.
EXTERNAL RESOURCE
Operating · Satellites & Space
AMSAT — Amateur Satellites for Beginners & Youth
AMSAT — Radio Amateur Satellite Corporation
Beginner satellite-operating guidance plus youth-oriented space and radio resources.
EXTERNAL RESOURCE
Operating · Satellites & Space
AMSAT Station and Operating Hints
AMSAT — Radio Amateur Satellite Corporation
Practical operating hints for new and experienced amateur-satellite operators.
EXTERNAL RESOURCE
Satellites & Space · Youth & STEM
ARISS — Talk with the International Space Station
ARISS — Amateur Radio on the International Space Station
Overview of scheduled Amateur Radio on the International Space Station educational contacts and proposal process.
EXTERNAL RESOURCE
Satellites & Space · Youth & STEM
ARISS Forms, Ground-Station and Education Resources
ARISS — Amateur Radio on the International Space Station
ARISS forms, ground-station recommendations, educational contact material, and participation resources.
EXTERNAL RESOURCE
Licensing · Operating
ARRL Amateur Radio Band Plan
ARRL — The National Association for Amateur Radio
A practical voluntary band-plan reference showing common operating segments and activities.
EXTERNAL RESOURCE
Antennas · Operating
ARRL RF Exposure Calculator
ARRL — The National Association for Amateur Radio
Interactive calculator for estimating RF-exposure compliance distances for an amateur station.
OFFICIAL SOURCE
Getting Started · Licensing
FCC CORES — Get or Manage an FRN
Federal Communications Commission
Official FCC system for creating and managing the FCC Registration Number used for licensing transactions.
OFFICIAL SOURCE
Emergency Communications
FEMA IS-100.C — Introduction to the Incident Command System
FEMA Emergency Management Institute
Free FEMA independent-study course introducing ICS structure, principles, and command roles.
OFFICIAL SOURCE
Emergency Communications
FEMA IS-700.B — Introduction to NIMS
FEMA Emergency Management Institute
Free FEMA course covering the National Incident Management System and how organizations work together during incidents.
PUBLIC DOMAIN
Electronics · History
Lessons in Wireless Telegraphy
Alfred Powell Morgan / Project Gutenberg
A systematic early course in wireless principles and the electrical laws behind radio equipment.
OFFICIAL SOURCE
Weather & SKYWARN · Youth & STEM
National Weather Service Education
NOAA National Weather Service
Weather science, safety, citizen science, educator resources, videos, and the JetStream online weather school.
OFFICIAL SOURCE
Emergency Communications · Weather & SKYWARN
National Weather Service SKYWARN
NOAA National Weather Service
National SKYWARN program information, spotter resources, guides, and training links.
OFFICIAL SOURCE
Emergency Communications · Weather & SKYWARN
NWS Morristown SKYWARN — Tennessee Region
NOAA National Weather Service — Morristown, TN
Regional SKYWARN information from the NWS Morristown office, including amateur-radio and spotter guidance.
OFFICIAL SOURCE
Emergency Communications · Weather & SKYWARN
NWS Spotter’s Field Guide
NOAA National Weather Service
National Weather Service field guide covering spotter safety, what to report, thunderstorms, tornadoes, downbursts, and more.
PUBLIC DOMAIN
Electronics · History
The Radio Amateur’s Hand Book (1922)
A. Frederick Collins / Project Gutenberg
A historical amateur-radio handbook covering early wireless telegraphy and telephony.
OFFICIAL SOURCE
Electronics · Operating
United States Frequency Allocation Chart
National Telecommunications and Information Administration
The U.S. government spectrum-allocation wall chart showing how the radio spectrum is assigned.
PUBLIC DOMAIN
Antennas · Electronics
Wireless Telegraph Construction for Amateurs
Alfred Powell Morgan / Project Gutenberg
An illustrated historical construction book for early amateur wireless stations.
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