While changing the Amplitude of a radio signal is the most obvious method to modulate it, it is by no means the only way and frequency modulation is another technique that can be used.
By changing the frequency of a signal to give frequency modulation or FM which has many advantages and it is used for broadcasting and radio communications, especially above frequencies of around 30 MHz....
who Can hear it up until 1500Hz , Please use Ear Phone .
View attachment InShot_20230402_004432001.mp4
By changing the frequency of a signal to give frequency modulation or FM which has many advantages and it is used for broadcasting and radio communications, especially above frequencies of around 30 MHz....
who Can hear it up until 1500Hz , Please use Ear Phone .
View attachment InShot_20230402_004432001.mp4
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