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Mobile phones
Industry: Mobile communications
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Mobile phones
Frequency modulation (FM)
Mobile communications; Mobile phones
A signalling method that varies the carrier frequency in proportion to the amplitude of the modulating signal.
Drive test
Mobile communications; Mobile phones
A method of taking signal strength measurements in a cellular coverage area.
Frequency reuse
Mobile communications; Mobile phones
The ability to use the same frequencies repeatedly across a cellular system, made possible by the basic design approach for cellular. Since each cell is designed to use radio frequencies only within ...
Dual band
Mobile communications; Mobile phones
A feature on some wireless phones that allows the handset to operate using either the 800 MHz cellular or the 1900 MHz PCS frequencies.
Dual mode
Mobile communications; Mobile phones
A feature on some wireless phones that allows the handset to operate on both analogue and digital networks.
Gateway gprs support node (GGSN)
Mobile communications; Mobile phones
Interface between the GPRS wireless data network and other networks such as the Internet or private networks.
Electromagnetic energy
Mobile communications; Mobile phones
Waves of electrical and magnetic energy moving together through space. Also called electromagnetic radiation.
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