Example image of eyePlorer eyePlorer map for 'Frequency-shift keying': Carrier wave Frequency modulation Binary numeral system Modulation index Orthogonality GSM Minimum-shift keying Mobile phone Automatic meter reading Caller ID FSK standards for use in Caller ID and remote metering Data Digital Frequency Modulation Pitch (music) Radio Sound Telephone Baseband Frequency-shift keying Amplitude modulation Radio frequency Alternating current Modem Bell 103 modem Bell 202 modem Compact Cassette Kansas City standard Microcomputer Amateur radio Pulse-position modulation Radio control Emergency Alert System United States Bit rate Environment Canada National Oceanic and Atmospheric Administration Weather radio CHU (radio station) Shortwave Continuous phase modulation Dual-tone multi-frequency Multiple frequency-shift keying Orthogonal frequency-division multiplexing Facsimile converter FM-UWB Gaussian frequency-shift keying Message-waiting indicator Orange box