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.
References in periodicals archive ?
Table 1 also shows a typical metallic charge composition for a medium frequency furnace.
[7,25] The higher FI values that we observed at high medium frequency also indicated an altered somatosensory response due to the impaired motor function of the lower extremities and spine.
The rest of the 12 strategies are used at a medium frequency. Only item 22(I try not to translate word for word) among the cognitive strategies is the least used item with a mean frequency value of 2.98.
Since the low and medium frequency DCT coefficients of the current block are sparse, the hard thresholding [18] is used to enforce their sparsity, and the process of hard thresholding is presented as follows,
Using Cluster 3 (low frequency of difficult encounters) as the reference group, we tested the direct association of Cluster 1 (high frequency of difficult encounters) and Cluster 2 (medium frequency of encounters) with patient outcomes (eg, errors in diabetes and hypertension management, missed prevention activities, quality benchmarks met).
Swiss Re says a contributing factor to the difference is that medium frequency and severity risks are often self-insured by large companies, which might dedicate an entire department to risk strategy, while small companies may have to outsource risk management to brokers or consultants.
Interferential stimulation (IFS) also known as interferential therapy (IFT) is a type of electrical stimulation where two slightly different, medium frequency alternating currents are simultaneously applied to the affected area through electrodes.
The smallest effect of noise level attenuation, just as in low and medium frequency range, was reached while shielding the noise source by the "L90" type barrier.
In each study, participants received six blocks of trials that contained either a pure low frequency list of items, a pure medium frequency list of items, a pure high frequency list of items, or one of three mixed frequency, high variability lists.
(11) Although these effects are already well established in the literature for low-frequency current, there are no studies showing the direct effect of medium frequency current in the induction of large or polyarticular muscle relaxation.
Medium frequency currents were given along the course of the spinal nerves to reduce swelling and facilitate blood flow.

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