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The 31 pages that link to Frequency modulation, each with the reason it gives.

• FrequencyRelated: It uses controlled changes in frequency rather than amplitude to carry information.

• Radio broadcastingRelated: FM stations encode audio as frequency variations, usually with less noise than AM.

• VibratoRelated: Vibrato can be modeled as periodic modulation of a sound’s fundamental frequency.

• Radio receiverRelated: FM receivers use frequency-sensitive circuits to recover the transmitted audio.

• Amplitude modulationCompared with: Unlike AM, it carries the message in frequency changes rather than amplitude changes.

• RadioRelated: FM carries audio through frequency changes and generally resists amplitude noise.

• Signal modulationBroader topic: It changes frequency rather than amplitude to carry the message.

• Wireless telegraphyCompared with: It became a distinct radio transmission approach rather than Morse-keyed signaling.

• FM broadcastingNarrower topic: FM broadcasting uses this method to encode audio on a radio-frequency carrier.

• Carrier waveBroader topic: It encodes the message in shifts of the carrier’s frequency.

• Shortwave radioCompared with: FM is common on VHF broadcasting but less suited to ordinary long-distance shortwave broadcasting.

• Pulse-width modulationCompared with: It varies cycle frequency, unlike PWM's varying pulse duration.

• Radio in the United StatesCompared with: FM offered clearer sound and less static than the dominant AM service.

• Single-sideband modulationCompared with: It encodes information through frequency variation rather than a selected amplitude-modulation sideband.

• Voltage-controlled oscillatorRelated: Applying an information signal to a VCO’s control input directly produces frequency modulation.

• Analog televisionRelated: Broadcast television commonly uses frequency modulation to carry sound.

• Phase modulationCompared with: Its frequency deviations are directly controlled, unlike phase modulation’s phase deviations.

• AM broadcastingCompared with: FM varies frequency rather than amplitude and generally resists amplitude noise better.

• DemodulationRelated: Recovering its message requires detecting frequency changes rather than carrier amplitude.

• Frequency-shift keyingNarrower topic: FSK uses discrete frequency changes, a digital form of frequency modulation.

• Basilar membraneCompared with: It changes frequency over time, whereas the membrane maps each frequency to a cochlear place.

• Electrical frequencyBroader topic: It uses controlled frequency changes rather than a single fixed repetition rate.

• LaserDiscRelated: The disc's analog video signal is recorded through frequency modulation.

• SECAMRelated: SECAM frequency-modulates its color-difference signals to transmit chrominance.

• Hedy LamarrRelated: The patented system used changing radio frequencies to carry its control signal.

• History of radioBroader topic: FM improved resistance to static and became a major format for high-fidelity broadcasting.

• History of broadcastingRelated: FM offered clearer audio and became a major alternative to AM broadcasting.

• Tokyo TowerRelated: FM radio services transmitted from the tower use this modulation method.

• Edward Victor AppletonRelated: Appleton’s frequency-modulated transmissions helped measure ionospheric reflections.

• Variable-frequency oscillatorCompared with: Unlike tuning between channels, it varies frequency rapidly to carry information.

• Walkie-talkieRelated: Many analog walkie-talkies use it to carry speech over radio.