The range 300-3000 kHz of the electromagnetic spectrum
Medium frequency
Frequency range
0.3 to 3 MHz
Wavelength range
1000 to 100 m
Radio bands
ITU
1 (ELF)
2 (SLF)
3 (ULF)
4 (VLF)
5 (LF)
6 (MF)
7 (HF)
8 (VHF)
9 (UHF)
10 (SHF)
11 (EHF)
12 (THF)
EU / NATO / US ECM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
IEEE
HF
VHF
UHF
L
S
C
X
Ku
K
Ka
V
W
mm
Other TV and radio
I
II
III
IV
V
VI
v
t
e
MF's position in the electromagnetic spectrum.
Medium frequency (MF) is the ITU designation[1] for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz). Part of this band is the medium wave (MW) AM broadcast band. The MF band is also known as the hectometer band as the wavelengths range from ten to one hectometers (1000 to 100 m). Frequencies immediately below MF are denoted as low frequency (LF), while the first band of higher frequencies is known as high frequency (HF). MF is mostly used for AM radio broadcasting, navigational radio beacons, maritime ship-to-shore communication, and transoceanic air traffic control.
^"Rec. ITU-R V.431-7, Nomenclature of the frequency and wavelength bands used in telecommunications" (PDF). ITU. Archived from the original (PDF) on 31 October 2013. Retrieved 20 February 2013.
Mediumfrequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz). Part of this band is...
Frequencies immediately below HF are denoted mediumfrequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF)...
Medium wave (MW) is a part of the mediumfrequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with...
included among the shortwaves, it is located near the top end of the mediumfrequency band. Most of the customary band names given below are only nominal...
to as temporal frequency for clarity and to distinguish it from spatial frequency. Ordinary frequency is related to angular frequency (symbol ω, with...
the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, are widely...
the frequency. For waves that propagate in a medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in...
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical...
intermediate frequency (IF) is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception. The intermediate frequency is...
other dysfunctional tissue is ablated using the heat generated from mediumfrequency alternating current (in the range of 350–500 kHz). RFA is generally...
spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different...
that of mediumfrequency (hectometre) radio signals in the 0.5–3 MHz range, around the AM broadcast bands. However, signals with frequencies below 30 MHz...
transmitting predefined digital messages via the medium-frequency (MF), high-frequency (HF) and very-high-frequency (VHF) maritime radio systems. It is a core...
in his honor. The ozone layer absorbs 97 to 99 percent of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which otherwise...
283 kHz in the low frequency (LF) band for longwave broadcasts and between 526 and 1706 kHz in the mediumfrequency (MF) band for medium-wave broadcasts...
military, led to most broadcasting moving to higher frequencies. Medium wave (also known as Mediumfrequency (MF)), is by far the most commonly used AM broadcasting...
(HF), which extends from 3 to 30 MHz (100 to 10 meters); above the mediumfrequency band (MF), to the bottom of the VHF band. Radio waves in the shortwave...
the properties of waves in a medium. A dispersion relation relates the wavelength or wavenumber of a wave to its frequency. Given the dispersion relation...
hydrogen can become opaque in the cold neutral medium. Such absorption only affects photons at the line frequencies: the clouds are otherwise transparent. The...
sometimes styled Navtex or NavTex, is an international automated mediumfrequency direct-printing service for delivery of navigational and meteorological...
low frequency. Mediumfrequency is defined as 5–15 kHz. Another style of division considers low frequency to be under 1 kHz, and mediumfrequency at between...
use of the basic diode detector in the receiver, a method used for mediumfrequency (MF) marine communications up to 2000 (emission type A2A). Radio transmission...
heating. Typically an induction heater operates at either mediumfrequency (MF) or radio frequency (RF) ranges. Four main component systems form the basis...
spectrum used for broadcasting. North American broadcast television frequencies AM broadcasting FM broadcasting Dead air Internet radio Radio network...
bands are frequency allocations for use within the shortwave radio spectrum (the upper mediumfrequency [MF] band and all of the high frequency [HF] band)...
these frequencies are used for mine communication and military communication with submerged submarines. At medium wave and shortwave frequencies (MF and...
Global Information