децибел (dB)

децибел (dB)

The standard unit used to express the ratio of two power levels. It is used in communications to express either a gain or loss in power between the input and output devices.

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เพิ่มภาพ

ส่วนหนึ่งของคำพูด: noun
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อุตสาหกรรม/ขอบเขต: Aerospace
Category: Satellites
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дигитално видео емитување

Aerospace; Satellites

The European-backed project to harmonise adoption of digital video.

задоцнување

Aerospace; Satellites

The time it takes for a signal to go from the sending station through the satellite to the receiving station. This transmission delay for a single hop satellite connection is very ...

демодулатор

Aerospace; Satellites

A satellite receiver circuit which extracts or "demodulates" the "wanted "signals from the received carrier.

девијација

Aerospace; Satellites

The modulation level of an FM signal determined by the amount of frequency shift from the frequency of the main carrier.

дигитален

Aerospace; Satellites

Conversion of information into bits of data for transmission through wire, fiber optic cable, satellite, or over air techniques. Method allows simultaneous transmission of voice, ...

декодер

Aerospace; Satellites

A television set-top device which enables the home subscriber to convert an electronically scrambled television picture into a viewable signal. This should not be confused with a ...

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อุตสาหกรรม/ขอบเขต: People Category: Musicians

Џон Ленон

John Lennon, (9 October 1940 – 8 December 1980) was a celebrated and influential musician and singer-songwriter who rose to worldwide fame as one of ...