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Glossary
This glossary contains an alphabetical listing of terms and
their definitions that are applicable to portable and mobile
subscriber radio products.
ACK
Acknowledgment of communication.
Active Channel
A channel that has traffic on it.
Analog Signal
An RF signal that has a continuous nature rather than a
pulsed or discrete nature.
ARS
Automatic Registration Service
ASTRO 25
Motorola Solutions standard for wireless digital trunked
communications.
ASTRO conventional
Motorola Solutions standard for wireless analog or digital
conventional communications.
Autoscan
A feature that allows the radio to automatically scan the
members of a scan list.
AUX CH
Auxiliary Control Head.
Call Alert
Privately paging an individual by sending an audible tone.
Carrier Squelch
Feature that responds to the presence of an RF carrier by
opening or unmuting (turning on) a receiver 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."
Central Controller
English
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