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Medium frequency (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 the medium wave (MW) AM broadcast band.
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radio band mf khz ground frequencies also used antennas frequency stations antenna medium waves use maritime propagation range broadcast low
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Medium frequency | Frequency range | 0.3 to 3 MHz | 1.00 | infobox |
| Medium frequency | Wavelength range | 1000 to 100 m | 1.00 | infobox |
| the inverted-L | instance of | top-loaded wire monopole antennas | 0.80 | text |
| T antennas | instance of | top-loaded wire monopole antennas | 0.80 | text |
| and wire dipole antennas | instance of | top-loaded wire monopole antennas | 0.80 | text |
| inverted-L or T antennas | instance of | above-ground counterpoises are sometimes used.Lower power transmitters often use electrically short quarter wave monopoles | 0.80 | text |
| which are brought into resonance with a loading coil at their base.Receiving antennas do not have to be as efficient as transmitting antennas since in this band the signal-to-noise ratio is determined by atmospheric noise | instance of | above-ground counterpoises are sometimes used.Lower power transmitters often use electrically short quarter wave monopoles | 0.80 | text |
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