Assertion: radio wave's frequency | /r/HasProperty | the itu designation
Facets:
value: to 3 megahertz
type: OTHER
value: for radio frequencies
type: OTHER
value: in the range of 300 kilohertz
type: OTHER
value: in the range of 3–30 khz
type: LOCATION
value: for electromagnetic radiation
type: OTHER
Source sentences:
text: High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz).
text: Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz, and corresponding wavelengths of 100,000 to 10,000 kilometers, respectively.
text: 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.
text: Medium frequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz).