Glossary - Motorola ASTRO XTSTM4250 User Manual

Glossary

This is a list of specialized terms used in this manual.
ACK
Active Channel
Analog Signal
ASTRO 25 Trunking
ASTRO
Conventional
Autoscan
Call Alert
Carrier Squelch
Central Controller
Channel
Control Channel
ASTRO XTS 4250 Digital Portable Radio, Advanced Model
Acknowledgment of communication.
A channel that has traffic on it.
An RF signal that has a continuous nature
rather than a pulsed or discrete nature.
Motorola standard for wireless digital
trunked communications.
Motorola standard for wireless analog or
digital conventional communications.
A feature that allows the radio to
automatically scan the members of a scan
list.
Privately page an individual by sending an
audible tone.
Feature that responds to the presence of an
RF carrier by opening or unmuting (turning
on) a receiver's audio circuit. A squelch
circuit silences the radio when no signal is
being received so that the user does not
have to listen to "noise."
A software-controlled, computer-driven
device that receives and generates data for
the trunked radios assigned to it. It monitors
and directs the operations of the trunked
repeaters.
A group of characteristics such as transmit/
receive frequency pairs, radio parameters,
and encryption encoding.
In a trunking system, one of the channels
that is used to provide a continuous, two-
way/data communications path between the
central controller and all radios on the
system.
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