===== COLIN COGLE'S BLOG ===== "So You Changed Your Callsign. Now What?" by Colin Cogle Published Wednesday, December 7, 2022. ABSTRACT: In the United States, changing your amateur radio callsign requires you to file one simple form with the FCC… right? READ THE ARTICLE: (TXT) Read the article (plain text). (HTM) Read the article (on the web). SEE ALSO: (HTM) FCC Universal Licensing System