GLOSSARY
clear mode -
communicating in an analog
format which is non-digitized
and non-encrypted.
control channel -
a radio channel in a trunked
system that is used to digi-
tally communicate with the
radios operating on the sys-
tem when they are not en-
g ag ed in active voice
communications.
conventional
channel -
a radio channel (transmit/re-
ceive) that is allocated for
conventional (non-trunked)
use and may be manually se-
lected by the operator.
conventional
mode -
communicating on radio
channels allocated for con-
ventional use.
cryptographic
key -
the number or code used by
the encryption and decryp-
tion circuitry to encode and
decode a signal.
CCT -
Carrier Controlled Timer - a
programmable timer that will
disable a transmission if the
timer length is exceeded.
CG -
Channel Guard - a method of
controlling squelch with a
tone or digital code (Channel
Guard is GE’s trade name for
coded squelch).
DES -
Data Encryption Standard - a
Federally accepted encryp-
tion/decryption algorithm
used to scramble or de-
scramble a signal.
decryption -
the process of decoding or
descrambling a signal ac-
cording to a predetermined
algorithm.
digital mode -
communicating using digit-
ized voice signals.
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