mast1.jpg

ELF-Extremely Low Frequency

A segment of the electromagnetic spectrum. ELF includes frequencies in the range 30-300 Hz (particularly high wavelengths, from 1000 to 10000 km, respectively).  Frequencies of the electric power grid are generally 50 or 60 Hz.  Examples of ELF electromagnetic fields: electric power lines, transformers, electric chargers, etc.)

English