FM stands for “Frequency Modulation.” It is a method of encoding and transmitting information, such as audio and voice, on an alternating current (AC) carrier wave. In FM radio broadcasting, the FM transmitter modulates the frequency of the carrier wave to carry the audio information, and the FM receiver demodulates the carrier wave to recover the audio information.
The main advantage of FM over the older amplitude modulation (AM) is that FM is less susceptible to interference and static noise. In an FM signal, the frequency of the carrier wave is varied to match the amplitude of the audio signal, while in an AM signal, the amplitude of the carrier wave is varied to match the amplitude of the audio signal. Since the frequency of an FM signal is less affected by external noise, such as electrical interference, FM signals are generally clearer and more stable than AM signals.
FM is widely used for radio broadcasting, television sound, two-way radio communications, and other applications that require a high-quality, stable signal. FM radio broadcasting uses a frequency band between 87.5 and 108.0 MHz, and FM radio stations can be received by a standard FM radio receiver.
In summary, FM stands for Frequency Modulation, it is a method of encoding and transmitting information, such as audio and voice, on an alternating current (AC) carrier wave. In FM radio broadcasting, the FM transmitter modulates the frequency of the carrier wave to carry the audio information, and the FM receiver demodulates the carrier wave to recover the audio information. The main advantage of FM over the older amplitude modulation (AM) is that FM is less susceptible to interference and static noise. FM is widely used for radio broadcasting, television sound, two-way radio communications, and other applications that require a high-quality, stable signal. FM radio broadcasting uses a frequency band between 87.5 and 108.0 MHz, and FM radio stations can be received by a standard FM radio receiver.