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Glossary
To help you understand the main technical terms
and abbreviations used in this booklet, and to take
full advantage of the features of your mobile
phone, here are a few definitions:
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 conversation 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.
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