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High frequency (HF)

Electro magnetic radiation with a frequency higher than approximately 1 MHz.

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Related terms

high frequency (HF)
Engineering; Electronic engineering

Pertaining to frequencies in the 3- to 30-MHz band (wavelengths from 10 to 100 meters).

high frequency (HF)
Telecommunications; General telecom

Frequencies from 3 MHz to 30 MHz. See electromagnetic spectrum.

high frequency (HF)
Weather; Meteorology

See radio frequency band.

high frequency (HF)
Aviation; Air traffic control; Airport

The frequency band between 3 and 30 MHz.

high frequency (HF)
Semiconductors; Test equipment

Electro magnetic radiation with a frequency higher than approximately 1 MHz.

high frequency (HF)
Science; General science

A radio frequency in the range 3–30 megahertz; i.e. having a wavelength in the range 10–100 meters.

high-pass filter
Semiconductors; Test equipment

(1) A math operation that emphasizes details in an image. (2) A circuit that attenuates low-frequency components in an analog signal.

bipolar
Semiconductors; Test equipment

(1) A signal that includes positive and negative values. (2) A type of semiconductor.

ground
Semiconductors; Test equipment

(1) An electrically neutral wire that has the same potential as the surrounding earth. Normally, a non-current-carrying circuit intended for safety. (2) A common reference point ...

low-pass filter
Semiconductors; Test equipment

(1) An operation that blurs details in an image. (2) A circuit that attenuates the high-frequency components in an analog signal.

electromagnetic compatibility (EMC)
Semiconductors; Test equipment

(1) The ability of electronic equipment to operate in an intended electromagnetic environment without degradation caused by interference. (2) The ability of equipment to operate ...

pixel
Semiconductors; Test equipment

(1) The fundamental picture element in a digital image. (2) The coordinate unit used to define the horizontal location of a pixel in an image. ("Pixel" is an acronym for "picture ...

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