Motorola ASTRO APX MOBILE O2 CONTROL HEAD, User Manual

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Glossary
English
117
Monitor
Check channel activity through menu
entries. If the channel is clear, you hear
static. If the channel is in use, you hear
conversation. It also serves as a way to
check the volume level of the radio, since
the radio “opens the squelch” when the
monitor button is pressed.
Multi-System
Talkgroup Scan
List
A scan list that can include both talkgroups
(trunked) and channels (conventional).
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.
Term Definition
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 order to
improve communications range and
coverage.
Selective Call
A feature that allows you to call a select
individual, intended to provide privacy and
to eliminate the annoyance of having to
listen to conversations of no interest to you.
Term Definition