![RCA RPX4500U User Manual Download Page 8](http://html.mh-extra.com/html/rca/rpx4500u/rpx4500u_user-manual_334820008.webp)
Copyright © 2015 RCA Communications Systems
RPX4500/RPX4600 P25 PORTABLE RADIO – USER MANUAL
8
ABBREVIATIONS
The following abbreviations are used throughout this manual. When possible, whenever the
abbreviation is first used, the full term is given with the abbreviation in parenthesis. After that
only the abbreviation is used.
ABBREVIATION
MEANING
ANSI
American National Standards Institute
APCO
Association of Public Safety Communications Officials
BER
Bit Error Rate
COSHH
Control Of Substances Hazardous to Health
CTCSS
Continuous Tone Coded Squelch System
DCS
Digital Coded Squelch
DSP
Digital Signals Processor
DTMF
Dual Tone Multi Frequency
FCC
Federal Communications Commission
FM
Frequency Modulation
GPS
Global Positioning System
ICNIRP
International Commission on Non-Ionising Radiation Protection
ID
Identification
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronic Engineers
IP
Internet Protocol
LED
Light Emitting Diode
LMR
Land Mobile Radio
NAC
Network Access Code
PLA
Programmable Logic Array
PMR
Private Mobile Radio
PS
Programming Software
PSTN
Public Switched Telephone Network
PTT
Press-To-Talk
RF
Radio Frequency
RSSI
Received Signal Strength Indicator
Rx
Receive/Receiver
SMSG
Short Message
SW
Software
TGID
Talk Group Identification
TMR
Trunked Mobile Radio
Tx
Transmit/Transmitter
TXTMSG
Text Message
USB
Universal Serial Bus
WACN
Wide Area Coverage Network