- Columbia University Amateur Radio Club C U A R C Click here for some of our prior QSL cards. Here's an ARRL document describing Amateur Radio. General Info Membership History Where to Find Us Some Area NTS Nets License Exam Sessions Latest Callsign Assignments Upcoming Events Club News Links to Other Amateur Radio Resources World Wide Web Sites Gopher Sites FTP Sites Callsign Servers Mailing ...www.columbia.edu/~fuat/cuarc/index.html