23
Frequency Bands
Frequency Band Number Classification Abbreviation
30 - 300 Hz 2 Extremely Low Frequencies ELF
300 - 3000 Hz 3 Voice Frequencies VF
3 - 30 KHz
4
Very Low Frequencies VLF
30 - 300 KHz 5 Low Frequencies LF
300 - 3000 KHz 6 Medium Frequencies MF
3 - 30 MHz 7 High Frequencies HF
30 - 300 MHz 8 Very High Frequencies VHF
300 - 3000 MHz
9
Ultrahigh Frequencies UHF
3 - 30 GHz 10 Super-High Frequencies SHF
30 - 300 GHz 11 Extremely High Frequencies EHF
300 GHz - 3 THz 12 - -
Source: http://www.testeq.com/charts/freqclas.lasso
Human hearing is 20 Hz to 20 kHz.
UHF is 300 MHz to 3000 MHz.
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