Technical Handbook
Table Of Contents
- 1 General Information
- 1.1 Introduction
- 1.2 Product Type Numbers
- 1.3 Abbreviations
- 2 Physical Organization
- 2.1 Module and Assembly Location
- 2.2 Service Kit Assembly
- 2.3 Power Supply
- 3 System description
- 3.1 Overview
- 3.2 Physical Description
- 3.3 Monitors
- 3.4 Transmitters / Modulators
- 3.5 TX Control
- 3.6 Remote Monitoring (RMS) Unit
- 3.7 Remote Control Unit
- 3.8 Remote Slave Panel
- 3.9 Remote Maintenance Monitoring (RMM)
- 4 Technical Specifications
- 4.1 Signal Minimum Performance GP
- 4.2 Environmental Characteristics
- 4.3 EMC Characteristics
- 4.4 Mechanical Characteristics
- 4.5 Power Supply
- 5 Mechanical Installation
- 5.1 Mounting Kit MK1343A
- 5.2 Moving RF Connectors
- 6 Electrical Installation
- 6.1 Connection Overview
- 6.2 Power and Battery
- 6.3 RF Inputs
- 6.4 RF Outputs
- 6.5 DC Loop (Localizer only)
- 6.6 Remote Control
- 6.7 PC and Modem
- 6.8 DME (localizer only)
- 6.9 For the Fernau 2020 DME the following connection is recommended
- 6.10 Analog Inputs
- 6.11 Digital Inputs and Outputs
- 6.12 Battery Warning
- 6.13 Remote control connections
- 6.14 Automatic shutdown of GP
- 6.15 Remote slave connection
- 6.16 Interlock switch connection
- 7 Tests and Adjustments
- 7.1 Configuration Settings
- 7.2 Technical note - Leased Line Setup for Remote Control (Westermo)
- 7.3 Transmitter Alignments and Calibration
- 7.3.1 RF Phase Feedback Adjustment
- 7.3.2 RF Power
- 7.3.3 LF Phase Adjustment
- 7.3.3.1 One-frequency system
- 7.3.3.2 Two-frequency system
- 7.3.4 RF Power Balance Adjustment
- 7.3.5 RF Phase at Combiner I/P
- 7.3.6 SDM Calibration
- 7.3.7 DDM Calibration
- 7.3.7.1 Test DDM Setting
- 7.3.8 Ident Tone Modulation Depth
- 7.3.8.1 Method 1
- 7.3.8.2 Method 2
- 7.3.9 RF Frequency Adjustment
- 7.4 Antenna System Adjustments
- 7.5 Monitor Alignment and Calibration.
- 7.6 Monitor Alarm Setting Procedure
- 7.7 Maintenance Limit Adjustments
- 7.8 Adjustment points
- 8 Functional Description
- 8.1 Introduction
- 8.2 Transmitter
- 8.3 Monitor
- 8.4 Transmitter Control
- 8.5 Remote control system
- 8.6 Remote Monitoring System (RMS)
- 8.7 Power Supply
- 9 Detailed description
- 9.1 Main Cabinet
- 9.1.1 MF1219A Glidepath Monitor Frontend
- 9.1.2 MO1212A Monitor
- 9.1.2.1 NMP101A Monitor Digital Frontend
- 9.1.2.2 NMP102A / NMP103A Comparator
- 9.1.3 TCA1218A Transmitter Control Assembly
- 9.1.3.1 NMP104A Station Control Monitor Data Detector
- 9.1.3.2 NMP105A Station Control Event Detection
- 9.1.3.3 NMP106A Station Control State Machine Control
- 9.1.3.4 NMP107A Terminator
- 9.1.3.5 NMP109A Remote Control Interface
- 9.1.4 LF1223A Low Frequency Generator
- 9.1.4.1 NMP110A Low Frequency Generator Control
- 9.1.5 OS1221B RF Oscillator
- 9.1.6 GPA1231A Glidepath Course Power Amplifier Assembly
- 9.1.7 GPA1232A Glidepath Clearance Power Amplifier Assembly
- 9.1.7.1 PA1234A Power Amplifier
- 9.1.7.2 AC1226A Amplitude control
- 9.1.7.3 PC1225B Phase Control
- 9.1.7.4 FD1236A Feedback Detector
- 9.1.7.5 FD1224A Feedback detector
- 9.1.7.6 CD1238A Combiner Detector
- 9.1.8 COA1207C Change-Over Assembly
- 9.1.9 PS1227A Power Supply
- 9.1.10 RMA1215A RMS Assembly
- 9.1.11 CI1210A External Connection Interface
- 9.1.12 MB1203A Monitor Section Motherboard
- 9.2 Tower Equipment
- 10 Parts Lists
- 10.1 Introduction
- 10.2 Parts Lists
- 10.3 Usable on code index
- 10.4 Figures
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•System
• Assembly
• Module
Systems have type numbers starting with NM, for example NM 7033. Systems consist of
assemblies, modules and parts.
Assemblies have type numbers consisting of three letters, a three- or four- digit number and a
letter, for example LPA 1230A. LPA is an abbreviation of
L
ocalizer
P
ower amplifier
A
ssembly,
1230 is a running number, and the last letter is the variant designator. Assemblies can consist
of assemblies, modules and parts.
Modules have type numbers consisting of two letters, a three- or four- digit number and a let-
ter, for example FD 1235A. FD is an abbreviation of
F
eedback
D
etector, 1235 is a running
number, and the last letter is the variant designator. Modules consist of parts.
1.3 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