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.
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.
DSR
Dynamic System Resilience.
EID
Encrypted Integrated Data.
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 every radio that the system has gone into
failsoft.
FCC
Federal Communications Commission.
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