Glossary
This glossary is a list of specialized terms used in this manual.
Term
ACK
Acknowledgment of communication.
Active Channel
A channel that has traffic on it.
An RF signal that has a continuous nature
Analog Signal
rather than a pulsed or discrete nature.
ARS
Automatic Registration Service
Motorola standard for wireless digital
ASTRO 25
trunked communications.
ASTRO
Motorola standard for wireless digital
Conventional
conventional communications.
A feature that allows the radio to
Autoscan
automatically scan the members of a scan
list.
Feature that responds to the presence of
an RF carrier by opening or unmuting
(turning on) a receiver's audio circuit. A
Carrier Squelch
squelch circuit silences the radio when no
signal is being received so that the user
does not have to listen to "noise".
Definition
Term
A software-controlled, computer-driven
device that receives and generates data for
Central
the trunked radios assigned to it. It
Controller
monitors and directs the operations of the
trunked repeaters.
A group of characteristics such as transmit/
Channel
receive frequency pairs and radio
parameters.
In a trunking system, one of the channels
that is used to provide a continuous, two-
Control Channel
way/data communications path between
the central controller and all radios on the
system.
Typically refers to radio-to-radio
Conventional
communications, sometimes through a
repeater (see Trunking).
Conventional
A scan list that includes only conventional
Scan List
channels.
A type of coded squelch using data bursts.
Digital Private
Similar to PL except a digital code is used
Line (DPL)
instead of a tone.
An RF signal that has a pulsed, or discrete,
Digital Signal
nature, rather than a continuous nature.
Definition
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English