Motorola CDM Series Basic Service Manual page 89

Glossary
Glossary of Terms
Squelch
Standby Mode
System Central
Controller
System Select
TOT
TPL
µC
UHF
µP
VCO
VCOBIC
VHF
VSWR
Muting of audio circuits when received signal levels fall below a pre-determined
value
An operating mode whereby the radio is muted but still continues to receive
data
Main control unit of the trunked dispatch system; handles ISW and OSW
messages to and from subscriber units (see ISW and OSW).
The act of selecting the desired operating system with the system-select switch
(also, the name given to this switch).
Time-Out Timer: a timer that limits the length of a transmission.
Tone Private-line
Microcontroller
Ultra High Frequency
Microprocessor
Voltage-Controlled Oscillator: an oscillator whereby the frequency of oscillation
can be varied by changing a control voltage.
Voltage-Controlled Oscillator Buffer Integrated Circuit
Very High Frequency
Voltage Standing Wave Ratio
Glossary-3