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Mobile phones

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Mobile phones

Digital cellular system (DCS 1800)

Mobile communications; Mobile phones

A global system for mobile communications-based PCS network used outside of the U.S.

Foliage attenuation

Mobile communications; Mobile phones

Reductions in signal strength or quality due to signal absorption by trees or foliage obstructions in the signal's line-of-sight path. For example, 800 MHz systems are seldom deployed in forested ...

Digital signal processor (DSP)

Mobile communications; Mobile phones

A microprocessor that digitises analogue signals.

Frame relay

Mobile communications; Mobile phones

Wideband, packet-based interface used to transmit bursts of data over a wide-area network. Seldom used for voice.

Disaggregation

Mobile communications; Mobile phones

The splitting of a spectrum licence into two or more licences of fewer frequencies.

Frequency

Mobile communications; Mobile phones

The number of oscillations, or vibrations, of radio waves per unit of time, usually expressed in either cycles-per-second or Hertz (Hz).

Downlink

Mobile communications; Mobile phones

The portion of a telecommunications path from a satellite to the ground. Also referred to as the reverse link.

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