Glossary-3
Standby Mode
An operating mode whereby the radio is muted but still continues to receive
data.
System Central
Controller
Main control unit of the trunked dispatch system; handles ISW and OSW
messages to and from subscriber units (see ISW and OSW).
System Select
The act of selecting the desired operating system with the system-select switch
(also, the name given to this switch).
TOT
Time-Out Timer: a timer that limits the length of a transmission.
TPL
Tone Private-line.
µC
Microcontroller.
UHF
Ultra High Frequency.
µP
Microprocessor.
VCO
Voltage-Controlled Oscillator: an oscillator whereby the frequency of oscillation
can be varied by changing a control voltage.
VCOBIC
Voltage-Controlled Oscillator Buffer Integrated Circuit.
VHF
Very High Frequency.
VSWR
Voltage Standing Wave Ratio.
Summary of Contents for HT1250
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Page 20: ...2 4 Intrinsically Safe Radio Information Notes ...
Page 34: ...3 14 Maintenance Notes ...
Page 60: ...6 4 Power Up Self Test Notes ...
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