Appendix C – Abbreviations
Appendix - C
ATC-5000NG ATC/DME Test Set Operation Manual
Rev. L0
Page 2
Subject to Export Control. See Cover Page for details.
February 2020
I
IFR
Instrument Flight Rules
ILS
Instrument Landing System
Imf
Interrupt Master Enable F lag
Intr, Interr
Interrogation
I/O
Input/Output
IP
Internet Protocol
K
kg
Kilogram (10
3
Grams)
kHz
Kilohertz (10
3
Hertz)
km
Kilometer (10
3
meters)
kt
Knot / Knots (Velocity)
kts
Knots (Velocity)
L
LAN
Local Area Network
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LOC
Localizer
LRU
Line Replaceable Unit
LSB
Least Significant Bit
LVL
Level
M
m
Meters
MAX
Maximum
MB
Message, COMM-B
MHz
Megahertz (10
6
Hertz)
min
Minutes
MOD
Modulation
mm
Millimeter (10
-3
Meters)
M
MOD
Master Modulation
ms
Millisecond (10
-3
Seconds)
MSB
Most Significant Bit
MSO
Message Start Opportunity
mV
Milliwatt
mW
Millivolt
N - O
N/A
Not Applicable
NAV
Navigation
nmi
Nautical Miles
ns, nsecs
Nanosecond (10
-9
Seconds)
OEM
Original Equipment Manufacturer
OUT
Output
P
para
Paragraph
PARAM
Parameter
ppm
Parts per Million
PREV
Previous
psi
Pounds per Square Inch
PWR
Power
R
RAM
Random Access Memory
RES
Resolution
RF
Radio Frequency
RI
Runway Incursion
RL
Reply Length
RMS
Root Mean Square
ROM
Read Only Memory
Rx, RX
Receiver
S
SA
Spectrum Analyzer
SDF
Software Development Folder
(Compact Database File)
sec, secs
Seconds
SELCAL
Selective Calling
Sig Gen
Signal Generator
SL
Sensitivity Level
SLS
Side Lobe Suppression
SP
Spacing
SPM
Scans per Minute
SPR
Synchronous Phase Reversal
SQTR
Squitter
Sqtr
Squitter
SRQ
Service Request
SPR
Sync Phase Reversal
SRS
Segment Request Subfield
SSR
Secondary Surveillance Radar
STD
Standard
SUPP
Suppressor / Suppression
SWP
Sweep
SWR
Standing Wave Ratio
SYNC
Synchronous
T
TCAS
Traffic Collision Avoidance System
TCP/IP
Transmission Control Protocol/
Internet Protocol
Traf Proc
Traffic Protocol
Tx, TX
Transmit
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