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...
39 KB (3,946 words) - 16:44, 11 June 2024
Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz, and corresponding wavelengths...
37 KB (3,953 words) - 16:45, 11 May 2024
Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz. Since its wavelengths range from 10–1 km, respectively...
21 KB (2,387 words) - 13:00, 9 May 2024
in the 3–120 Hz frequency range. This track is normally sent to a subwoofer—a loudspeaker designed to reproduce very low frequencies. LFE channels originated...
7 KB (912 words) - 10:00, 21 March 2022
Slow earthquake (redirect from Low frequency earthquake)
various types of slow earthquake: low frequency earthquakes (LFE) very low frequency earthquakes (VLF) and deep-low-frequency earthquakes slow slip events...
37 KB (4,392 words) - 03:15, 23 June 2024
infrared, microwave, radio waves, and low-frequency radio frequency (very low frequency, extremely low frequency) are all examples of non-ionizing radiation...
22 KB (2,516 words) - 01:45, 10 July 2024
Electromagnetic spectrum (redirect from Electromagnetic frequency spectrum)
frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band. From low to...
46 KB (4,829 words) - 20:50, 20 May 2024
during and after a nuclear attack. The system used both very low frequency (VLF), and low frequency (LF) radio bands. SLFCS was used for United States nuclear...
11 KB (1,160 words) - 07:09, 6 March 2024
Radiation (section Very low frequency)
wavelengths bend or reflect very little and travel along the line of sight. Very low frequency (VLF) refers to a frequency range of 30 Hz to 3 kHz which...
47 KB (6,147 words) - 19:47, 14 August 2024
Communication with submarines (category Radio frequency propagation)
Transmitting messages to these submarines is an active area of research. Very low frequency (VLF) radio waves can penetrate seawater just over one hundred feet...
18 KB (2,085 words) - 03:20, 31 July 2024