Glossary
English
70
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.
Deadlock
Displayed by the radio on a DRSM 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.
DRSM Display Remote Speaker Microphone
Term Definition
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.
Home screen
The first display information on a DRSM
after the radio completes its self test.
KVL
Key-variable loader: A device for loading
encryption keys into the radio.
LCD Liquid crystal display.
LED Light-emitting diode.
Li-Ion Lithium ion.
Term Definition
APX_3000_M1.book Page 70 Wednesday, October 17, 2012 12:56 PM
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