Before revision: 236px|A VLF receiving antenna at Palmer Station, Antarctica, operated by Stanford University Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively.
After revision: amateur radio hundred decibels Curtis Whaley 199429Curtis Whaley236px|A VLF receiving antenna at Palmer Station, Antarctica, operated by Stanford University Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively.