FCC: Title 47, PART 97, Amateur Radio Service                                    ARRL US Band Plan

UTC (Zulu) Time Conversion Chart                                                        US Amateur Radio Band Chart

Solar Ham                                                                                                  HF Propagation Map

Radio Manufacturers                                                                              New Ham Radio Gear

Yaesu                                                                                                           GigaParts
Kenwood                                                                                                     Ham Radio Outlet
Elecraft                                                                                                        DX Engineering
FlexRadio                                                                                                    MTC Radio
Icom                                                                                                             R&L Electronics

Publications

DLARC - The Digital Library of Amateur Radio and Communications, a free library devoted to ham radio, shortwave listening, college radio, and early communications.