Section 3: Glossary-6 Glossary
mode A programmed combination of operating parameters; for example, a
channel or talkgroup.
mode slaving A radio programmed to automatically provide the proper operation for a
given selected mode.
monitoring Used in conventional operation where the programmed monitor button
is pressed to listen to another user who is active on a channel. This
prevents one user from interfering with another user’s conversation.
MOSI See Master Out Slave In.
multiplexer An electronic device that combines several signals for transmission on
some shared medium (e.g., a telephone wire).
MUX See multiplexer.
Network Access
Code
Network Access Code (NAC) operates on digital channels to reduce
voice channel interference between adjacent systems and sites.
NiCd Nickel-cadmium.
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.
OMPAC See over-molded pad-array carrier.
open architecture A controller configuration that utilizes a microprocessor with extended
ROM, RAM, and EEPROM.
oscillator An electronic device that produces alternating electric current and
commonly employs tuned circuits and amplifying components.
OSW See outbound signaling word.
OTAR See over-the-air rekeying.
outbound signaling
word
Data transmitted on the control channel from the central controller to the
subscriber unit.
over-molded pad-
array carrier
A Motorola custom IC package, distinguished by the presence of solder
balls on the bottom pads.
over-the-air rekeying Allows the dispatcher to remotely reprogram the encryption keys in the
radio.
PA Power amplifier.
page A one-way alert with audio and/or display messages.
paging One-way communication that alerts the receiver to retrieve a message.
PC Board Printed Circuit Board. Also referred to as a PCB.
Term Definition
To Next Page
Loading...
Need help?
General
