S331L UG PN: 10580-00321 Rev. M B-1
Appendix B — Glossary of
Terms
B-1 Introduction
The following terms are related to this product and technology.
B-2 Glossary Terms
Adapter : A fitting that supplies a passage between two sets
of equipment when they cannot be directly
interconnected.
Adaptive Array
Antenna : Adaptive array antenna is a type of advanced
’smart’ antenna technology that continually
monitors a received signal and dynamically
adapts signal patterns to optimize wireless system
performance. The arrays use signal processing
algorithms to adapt to user movement, to changes
in the radio-frequency environment, and to
multi-path and co-channel interference.
ADC : Analog-to-Digital Converter (ADC, A/D or A to D)
is an electronic device that converts continuous
signals to discrete digital numbers. The reverse
operation is performed by a digital-to-analog
converter (DAC). ADC can uniquely represent all
analog input values within a specified total input
range by a limited number of digital output codes.
Refer also to DAC.
Analog System : An Analog system uses an analog transmission
method to send voice, video, and data, using
analog signals (such as electricity or sound waves)
that are continuously variable rather than
discrete units as in digital transmissions. Mobile
analog systems include AMPS, NMT and ETACS.
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