medium frequency

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medium frequency

[′mē·dē·əm ′frē·kwən·sē]
(communications)
A Federal Communications Commission designation for the band from 300 to 3000 kilohertz in the radio spectrum. Abbreviated mf.

medium frequency

The portion of the band of frequencies of electromagnetic radiation that lies between 300 kHz and 3 MHz. These, along with low frequencies, are used mainly for nondirectional beacons (NDB). The aeronautical allocation for NDBs covers a part of both bands from 200 kHz to 420 kHz.

medium frequency

An electromagnetic wave that oscillates in the range from 300,000 to 3,000,000 Hz. See spectrum.
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