User's Manual

M7X and M7R Page v
List of Abbreviations
The following list gives the standard abbreviations used in Park Air user documentation.
Aampere
ac alternating current
AGC automatic gain control
ALC automatic level control
AM amplitude modulation
ATC air traffic control
BER bit error rate
BIT built-in test
bps bits per second
C celsius
CAS channel associated signalling
CCE control centre equipment
CD compact disk
CSMA carrier sense multiple access
dB decibel
dc direct current
DSB double sideband
D8PSK differentially encoded 8-phase shift
keying
E1-RIC E1-radio interconnect
ESD electrostatic sensitive device
E-BIT external bit signal
Fig figure
FM frequency modulation
FP frequency preset
g gramme
HPA high power amplifier
Hz hertz
IF intermediate frequency
k kilo
kbits/s kilobits per second
kg kilogramme
kHz kilohertz
LCD liquid crystal display
LED light emitting diode
LRU line replaceable unit
Mmega
mmetre
mA milliamp
MARC multi-access remote control
Mbits/s megabits per second
MHz megahertz
mm millimetre
ms millisecond
MSK minimum shift keying
mW milliwatt
NB narrow-band
n/c normally closed
n/o normally open
PA power amplifier
PC personal computer
PCB printed circuit board
pk-pk peak-to-peak
ppm parts per million
PSU power supply unit
PTT press to transmit
RCMS remote control and monitoring
system
RF radio frequency
RF PA radio frequency power amplifier
RSSI radio signal strength indication
TDMA time division multiple access
TS time slot
UHF ultra high frequency
Vvolt
VA volt-ampere
VCCS voice control and communication
switch
VFP virtual front panel
VHF very high frequency