volume change and mode
change.
Network Access
Code
Network Access Code (NAC)
operates on digital channels to
reduce voice channel
interference between adjacent
systems and sites.
Non-Tactical/
Revert
The user talks on a
preprogrammed emergency
channel. The emergency alarm
is sent out on this same
channel.
OTAR
Over-the-air rekeying.
Page
A one-way alert, with audio
and/or display messages.
Personality
A set of unique features
specific to a radio.
PIN
Personal Identification Number
Preprogrammed
Refers to a software feature
that has been activated by a
qualified radio technician.
Private
(Conversation)
Call
A feature that lets you have a
private conversation with
another radio user in the
talkgroup.
Private Line (PL)
A sub-audible tone that is
transmitted such that only
receivers decoding the tone
receives it.
Programmable
Refers to a radio control that
can have a radio feature
assigned to it.
PTT
Push-To-Talk. The
PTT
button
engages the transmitter and
puts the radio in transmit (send)
operation when pressed.
Radio Frequency
(RF)
The part of the general
frequency spectrum between
the audio and infrared light
regions (about 10 kHz to
10,000,000 MHz).
Repeater
A conventional radio feature,
where you talk through a
receive/transmit facility that re-
transmits received signals, in
Glossary
164
English
