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Infrared
The radio frequency spectrum
Infrasound.
20 Hz to 20,000 Hz and they are called Audible Range (Sonic Spectrum).
Hearing Range of frequencies for humar ears if from 20 Hz to 20,000 Hz.
Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.
the electromagnetic spectrum
Infrared
The radio frequency spectrum
The transmission bandwidth refers to the range of frequencies that are being transmitted from one point to another. The channel bandwidth on the other hand refers to the frequencies of a given channel.
Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.
Radian
As FM is transmitted using VHF, the transmitting range is more a matter of Line of Sight than transmitter power as these frequencies only follow straight lines.
Infrasound.
That would be a spectrum or band.
20 Hz to 20,000 Hz and they are called Audible Range (Sonic Spectrum).
there are an infinite range of frequencies limited only by the mechanical limitations of the medium creating and transferring it.