Example image of eyePlorer eyePlorer map for 'Amateur radio': Etymology of ham radio Hobby Public services Radio Amateur radio emergency communications Amateur radio operator Electronics Wireless Amateur Callbook History of radio Engineering Industry Science Social work Amateur radio direction finding Amateur radio homebrew Amateur radio operating award Amateur radio station Contesting DXing Hamfest High-speed multimedia radio IP OSCAR Portable operation (amateur radio) QSL Amateur radio frequency allocations Automatic Packet Reporting System Global Positioning System Internet Radio Linking Project List of amateur radio modes Microwave Radio repeater Ultra high frequency Vacuum tube Very high frequency Vintage amateur radio Frequency modulation Single-sideband modulation Morse code Telegraphy Continuous wave EME (communications) Shortwave Signal-to-noise ratio Q code Amplitude modulation High frequency Federal Communications Commission