Written by Rick @ buytwowayradios.com Step 1. Register for a Username Note: If you already registered in CORES, you can skip this step. To register for an FCC Username, go to the FCC Universal License System (ULS) page, and under the Filing sub-heading, click New User Registration. This will take you to the FCC Registration Login page. Select the option Register under the column header Need a Username?. This will take you to the online FRN registration form. Before you fill out the for...