MF

Communications Systems Glossary

Communications Systems — Radio frequency — MF

Information on MF

The medium-frequency band is a radio-frequency (RF) band in the range 300-3,000 kHz. The lower portion of the MF band is useful for communications systems requiring reasonably stable transmission over moderately long distances. Antenna sizes are reasonable but substantial transmitted powers are required for reliable communications since appreciable atmospheric noise occurs in this band. Propagation is predominantly by sky wave with relatively weak ground wave. This band is commonly used for commercial radio broadcasting and is also used for fixed services, maritime mobile service, maritime and aeronautical navigation, and amateur communication.

Other topics in our resources on Communications Systems related to MF include: 

Radio frequency (RF) extremely low frequency (ELF) very low frequency (VLF)

low frequency (LF) high frequency (HF) very high frequency (VHF)

ultra high frequency (UHF) super high frequency (SHF) extremely high frequency (EHF)

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