operations of the trunked
repeaters.
Channel
A group of characteristics such
as transmit/ receive frequency
pairs, radio parameters, and
encryption encoding.
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.
COTS
Commercial Off-The-Shelf
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.
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.
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
every radio that the system has
gone into failsoft.
FCC
Federal Communications
Commission.
FM
Frequency Modulation
Hang Up
Disconnect.
Glossary
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