Motorola APX MOBILE O3 CONTROL HEAD, User Manual

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Control Channel 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.
Conventional Typically refers to radio-to-
radio communications,
sometimes through a repeater
(see Trunking).
Conventional
Scan List A scan list that includes only
conventional channels.
CP Codeplug
Cursor A visual tracking marker (a
blinking line) that indicates a
location on the display.
Deadlock Displayed by the radio after
three failed attempts to unlock
the radio. The radio must be
powered off and on prior to
another attempt.
Digital Private
Line (DPL) A type of coded squelch using
data bursts. Similar to PL
except a digital code is used
instead of a tone.
Digital Signal An RF signal that has a pulsed,
or discrete, nature, rather than
a continuous nature.
Dispatcher An individual who has radio
system management duties.
DSP Digital Signal Processing
Dynamic
Regrouping A feature that allows the
dispatcher to temporarily
reassign selected radios to a
single special channel so they
can communicate with each
other.
DVRS Digital Vehicular Repeater
System
ESN Electrical Serial Number
Failsoft A feature that allows
communications to take place
even though the central
controller has failed. Each
trunked repeater in the system
transmits a data word informing
Glossary
143
English