| 释义 |
medium frequency
medium frequencyn. Abbr. MF A radio frequency or radio-frequency band in the range 300 to 3,000 kilohertz.medium frequency n (Broadcasting) a radio-frequency band or radio frequency lying between 3000 and 300 kilohertz. Abbreviation: MF me′dium fre′quency
n. any radio frequency between 300 and 3000 kilohertz. Abbr.: MF [1915–20] Thesaurus| Noun | 1. | medium frequency - 300 to 3000 kilohertzMFradio frequency - an electromagnetic wave frequency between audio and infraredelectromagnetic spectrum - the entire frequency range of electromagnetic waves |
medium frequency
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 frequencyThe 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 frequencyAn electromagnetic wave that oscillates in the range from 300,000 to 3,000,000 Hz. See spectrum.MedicalSeespectrumAcronymsSeeMFmedium frequency
Synonyms for medium frequencynoun 300 to 3000 kilohertzSynonymsRelated Words- radio frequency
- electromagnetic spectrum
|