Motorola APX 4000 User's Guide download pdf (Page 164)

Glossary

English

Tactical/

Non-Revert

The user talks on the channel that was

selected before the radio entered the

emergency state.

Talkaround

Bypass a repeater and talk directly to

another unit for easy local unit-to-unit

communications.

Talkgroup

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 Monitor

Scan List

A scan list that includes talkgroups that are

all from the same trunking system.

USK Unique Shadow Key.

Term Definition

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 each other.

Abbreviated as UTC (English backronym =

Universal Time, Coordinated), it is also

known as Zulu (Z) Time.

Zone A grouping of channels.

Term Definition

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Motorola APX 4000 User's Guide Page 164

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