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Glossary - Samsung SCH-N182 User Manual

Digital cellular telephone.
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G l o s s a r y
Airtime - Actual time spent talking on the wireless
phone. Most carriers bill customers based on
how many minutes of airtime they use each
month.
Antenna - A device for transmitting or receiving
signals. The size and shape of antennas is
determined, in part, by the frequency of the
signal they receive. Wireless phones and the
base station must have antennas.
Base Station - The fixed radio transmitter/receiver that
maintains communications with mobile
radio telephones within a given area.
(Typically called a cell or cell site)
CDMA - (Code Division Multiple Access) A spread-
spectrum approach to digital transmission.
With CDMA, each conversion is digitized and
then tagged with a code. The mobile phone
deciphers only a particular code to pick the
right conversation off the air. The transmitted
signal is just above noise level across the
available bandwidth.
Channel - Communications signals transmit along paths
called channels.
Codec - Compression & Decompression.
Deactivation - The process of rendering a wireless
phone inactive.
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