super low frequency
(electromagnetic radiation, frequency 30Hz to 300Hz)
Super low frequency (SLF) radiation is electromagnetic radiation
defined by the ITU to be within the frequency range of
30Hz to 300Hz.
It is considered within the lower-frequency end of the
radio spectrum, or beyond (subradio).
It is adjacent to extremely low frequency and ultra low frequency.
| || |
|999km||300Hz||1.3peV||begin||super low frequency|
|9993km||30Hz||124×10-15eV||end||super low frequency|
extremely low frequency (ELF)
ultra low frequency (ULF)