條碼科技網

頻率區分表
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)