Motorola APX 3000 User Manual page 81

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.
NiMH
Nickel-metal-hydride.
Non-tactical/revert
The user will talk on a preprogrammed emergency channel. The emergency alarm is sent out on
this same channel.
OCW
Operation Critical Wireless.
Over-The-Air Rekeying
Allows the dispatcher to remotely reprogram the encryption keys in the radio.
Page
A one-way alert with audio and/or display messages.
Personality
A set of unique features specific to a radio.
Preprogrammed
A software feature that has been activated by a qualified radio technician.
Private Line (PL)
A sub-audible tone that is transmitted such that only receivers decoding the tone receives it.
Programmable
A radio control that can have a radio feature assigned to it.
Push-to-Talk
PTT-The switch or button usually located on the left side of the radio which, when pressed,
causes the radio to transmit. When the PTT is released, the unit returns to receive operation.
Radio Frequency
RF-The portion of the electromagnetic spectrum between audio sound and infrared light
(approximately 10 kHz to 10 GHz).
Repeater
Remote transmit/receive facility that re-transmits received signals in order to improve
communications range and coverage (conventional operation).
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Glossary
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