Glossary
Glossary–4
CMD 80 Digital Radiocommunication Tester User Manual
SID
System Identification Code. Broadcast parameter used to determine
HOME/ROAM status for mobile.
SMS
Short Message Service
SOC
System Operator Code. Broadcast parameter used to determine HOME/
ROAM status for mobile.
ST
Signaling Tone. Used by mobiles in AMPS mode for on–hook/off–hook
status, other signaling and acknowledgement purposes.
Sync Channel
The Sync Channel transmits time information to align the mobile and base
station clocks.
TACS
Total Access Communications System
TDMA
Time Division Multiple Access – A form of mobile communication that uses
a specific frequency at a specific time to distinguish users. This allows
simultaneous use by multiple users on the same frequency.
Traffic Channel
Equivalent to an analog voice channel where conversations take place.
Waveform Quality “
r
”
(Greek letter rho)
The CDMA transmitter figure of merit. It is a measure of the percentage of
transmitter power within the desired code domain related to the ideal value.
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