This glossary is a list of specialized terms used in this manual.
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 standard for wireless digital
Motorola standard for wireless digital
A feature that allows the radio to
automatically scan the members of a scan
Bluetooth is an open wireless technology
standard for exchanging data over short
distances from fixed and mobile devices
with high levels of security.
Bluetooth pairing occurs when two
bluetooth devices exchanged a passkey to
form a paired Bluetooth wireless
Call Alert Privately page an individual by sending an
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
A group of characteristics such as transmit/
receive frequency pairs, radio parameters,
and encryption encoding.