| Hz | frequency |
|---|---|
| ~3kHz | ELF(extremely low frequency) |
| 3kHz~30kHz | VLF(very low frequency) |
| 30kHz~300kHz | LF(low frequency) |
| 300kHz~3MHz | MF(medium frequency) |
| 3MHz~30MHz | HF(high frequency) |
| 30MHz~300MHz | VHF(very high frequency) |
| 300MHz~3GHz | UHF(ultra high frequency) |
| 3GHz~30GHz | SHF(ultra high frequency) |
| 30GHz~300GHz | EHF(extremely high frequency) |
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