In addition to VHF broadcasting, very high-frequency radio waves are widely used for ship and aircraft communications, disaster prevention and administration radio, police and fire radios, ham radio, and other applications .
Read moreWhat is low frequency current?
[′lō ‚frē·kwən·sē ′kə·rənt] (electricity) An alternating current having a frequency of less than about 300 kilohertz .
Read moreWhat is high frequency current?
(hī-frē’kwĕn-sē kŭr’ĕnt) An alternating electric current having a frequency of 10,000 or more cycles per second ; it produces no muscular contractions and does not affect the sensory nerves.
Read moreWhat is medium frequency current in electrotherapy?
Medium frequency currents are the currents whose frequency falls between the range of 1000 to 10,000 Hz . They are being used therapeutically due to their advantage of greater penetration and with a higher tolerance and comfort over the low frequency current.
Read moreWhat is application of low frequency?
Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz. Since its wavelengths range from 10–1 km, respectively, it is also known as the kilometre band or kilometre wave. LF radio waves exhibit low signal attenuation, making them suitable for long-distance communications .
Read moreWhat is medium frequency current?
Medium frequency currents are the currents whose frequency falls between the range of 1000 to 10,000 Hz . They are being used therapeutically due to their advantage of greater penetration and with a higher tolerance and comfort over the low frequency current.
Read moreWhich current is used in IFT?
Interferential therapy (IFT) is a popular electrotherapeutic modality for pain management. It is characterized by the interference of 2 medium-frequency currents (ie, 1–10 kHz) , which combine to produce a new medium-frequency current whose amplitude is modulated at low frequency (ie, <1 kHz).
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