Encyclopedia > Cutoff frequency

Article Content

Cutoff frequency

In telecommunication, the term cutoff frequency has the following meanings:

1. The frequency either above which or below which the output of a circuit, such as a line, amplifier, or filter, is reduced to a specified level.

2. The frequency below which a radio wave fails to penetrate a layer of the ionosphere at the incidence angle required for transmission between two specified points by reflection from the layer.

Source: from Federal Standard 1037C and from MIL-STD-188

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Royalist

... At its simplest, it refers to an adherent of a monarch or royal family. Of the more specific uses of the term, the most common include: 1. A supporter of King ...