The national association for Amateur Radio in the US. Membership benefits include QST magazine, license exam coordination, and advocacy.
Free online study resource for amateur radio license exams. Includes practice tests for Technician, General, and Extra classes.
The world's largest amateur radio callsign database. Look up any callsign, find operator information, and connect with hams worldwide.
Comprehensive database of amateur radio repeaters across North America with detailed information and coverage maps.