Nikon XTS-5000 manual Glossary, 133

Glossary

This glossary is a list of specialized terms used in this manual.

ACK	Acknowledgment of communication.
Active Channel	A channel that has traffic on it.
Analog Signal	An RF signal that has a continuous nature
	rather than a pulsed or discrete nature.
ARS	Automatic Registration Service.
ASTRO 25 Trunking	Motorola standard for wireless digital
	trunked communications.
ASTRO	Motorola standard for wireless analog or
Conventional	digital conventional communications.
Autoscan	A feature that allows the radio to
	automatically scan the members of a scan
	list.
Call Alert	Privately page an individual by sending an
	audible tone.
Carrier Squelch	Feature that responds to the presence of an
	RF carrier by opening or unmuting (turning
	on) a receiver’s audio circuit. A squelch
	circuit silences the radio when no signal is
	being received so that the user does not
	have to listen to “noise.”
Central Controller	A software-controlled, computer-driven
	device that receives and generates data for
	the trunked radios assigned to it. It monitors
	and directs the operations of the trunked
	repeaters.
Channel	A group of characteristics such as transmit/
	receive frequency pairs, radio parameters,
	and encryption encoding.

ASTRO XTS 5000 Model II 133