Motorola Astro APX User Manual page 132


 Codeplug
A visual tracking marker (a blinking line)

that indicates a location on the display.
Displayed by the radio after three failed
attempts to unlock the radio.The radio must

be powered off and on prior to another
attempt.
A type of coded squelch using data bursts.

Similar to PL except a digital code is used

instead of a tone.
An RF signal that has a pulsed, or discrete,

nature, rather than a continuous nature.
An individual who has radio system

management duties.
 Digital Signal Processing
A feature that allows the dispatcher to
 temporarily reassign selected radios to a
 single special channel so they can
communicate with each other.
 Electrical Serial Number


 
A feature that allows communications to
take place even though the central
controller has failed. Each trunked repeater

in the system transmits a data word
informing every radio that the system has
gone into failsoft.
 Federal Communications Commission.
 Frequency Modulation
 Disconnect.
The first display information after the radio

completes its self test.
Key-variable loader: A device for loading

encryption keys into the radio.

Liquid crystal display
 Light-emitting diode
A software-activated feature shown at the
bottom of the display – selection of these

features is controlled by the
 Millennium Control Head Board

.