Motorola ASTRO APX O5 User Manual page 156

Squelch
Standby
Status Calls
Tactical/ Non-
Revert
Talkaround
Talkgroup
152
English
Special electronic circuitry,
added to the receiver of a
radio, that reduces, or cuts off,
unwanted signals before they
are heard in the speaker.
An operating condition whereby
the radio's speaker is muted
but still continues to receive
data.
Pre-defined text messages that
allow the user to send a
conditional message without
talking.
The user talks on the channel
that was selected before the
radio entered the emergency
state.
Bypass a repeater and talk
directly to another unit for easy
local unit-to-unit
communications.
An organization or group of
radio users who communicate
with each other using the same
communication path.
TMS Text Messaging Service
Trunking The automatic sharing of
communications paths between
a large number of users (see
Conventional).
Trunking Priority A scan list that includes
Monitor Scan List talkgroups that are all from the
same trunking system.
USK Unique Shadow Key.
UTC Coordinated Universal Time.
The international time standard
(formerly Greenwich Mean
Time, or GMT). Zero hours
UTC is midnight in Greenwich,
England, which is located at 0
degrees longitude. Everything
east of Greenwich (up to 180
degrees) is later in time;
everything west is earlier.
There are 42 time authorities
around the world that are
constantly synchronizing with