OPERATING MANUAL
1-2
21833-3.4
NORMARC 7013
INSTRUMENT LANDING SYSTEM
SYSTEM DESCRIPTION ©1999 Navia Aviation AS
are connected to the LLZ cabinet.
The Remote Control unit is intended for installation in the tower or a technical room to give
remote control and status indication. An optional Remote Slave panel can be used if control
and status indication is required in additional positions.
The RMM system comprises the built-in RMS system in the LLZ cabinet, and a data program
running on a standard PC. The PC can be connected directly to the cabinet, or by modems
through leased or switched telephone lines.
1.2 Abbreviations
AC Alternating Current
ADC Analog to Digital Converter
AGC Automatic Gain Control
CL Course Line
CLR Clearance
COU Course
CPU Central Processing Unit
CS Course Sector
DAC Digital to Analog Converter
DC Direct Current
DDM Difference in Depth of Modulation
DF Difference Frequency
DL DC Loop
DS Displacement Sensitivity
DSP Digital Signal Processor
EEPROM Electrically Erasable Progammable Read Only Memory
EMC ElectroMagnetic Compatibility
EMI ElectroMagnetic Interference
EPROM Erasable Programmable Read Only Memory
FFT Fast Fourier Transform
FIFO First-In-First-Out
FPGA Field Programmable Gate Array
GPA Glidepath Power amplifier Assembly
I/F InterFace
I²C Inter Integrated Circuit
IIC Same as I²C
ILS Instrument Landing System
LED Light Emitting Diode
LF Low Frequency
LLZ Localizer
LPA Localizer Power amplifier Assembly
LRU Line Replacable Unit
MCU Monitor Combiner Unit
NAV NAVigation signals
NF Near Field
PC Personal Computer
RAM Random Access Memory
RF Radio Frequency
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