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Glossary
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.
Channel
- Communications signals transmit along
paths called channels.
Codec
- Compression & Decompression.
Deactivation
- The process of rendering a wireless
phone inactive.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/ TV
technician for help.
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